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1. Additive yield response of chickpea (Cicer arietinum L.) to rhizobium inoculation and phosphorus fertilizer across smallholder farms in Ethiopia

Author:
Wolde-meskel, Endalkachew; van Heerwaarden, Joost; Abdulkadir, Birhan; Kassa, Sofia; Aliyi, Ibsa; Degefu, Tulu; Wakweya, Kissi; Kanampiu, Fred; Giller, Ken E.
Source:
Agriculture, ecosystems & environment 2018 v.261 pp. 144-152
ISSN:
0167-8809
Subject:
Cicer arietinum; Rhizobium; agroecology; chickpeas; farmers; grain yield; greenhouses; nitrogen content; phosphorus fertilizers; small farms; soil fertility; soil types; Ethiopia
Abstract:
... The impacts of rhizobium inoculation on growth and yield of chickpea have mainly been tested in experiments conducted in greenhouses or on research stations. We report the response of the crop to inoculation (I) and phosphorus fertilizer (P) application across a large number of smallholder’s farms over four regions of Ethiopia, covering diverse soil fertility and agro-ecological conditions. Increa ...
DOI:
10.1016/j.agee.2018.01.035
PubMed:
29970943
PubMed Central:
PMC5946702

2. Agricultural landscape simplification reduces natural pest control: A quantitative synthesis

Author:
Rusch, Adrien; Chaplin-Kramer, Rebecca; Gardiner, Mary M.; Hawro, Violetta; Holland, John; Landis, Douglas; Thies, Carsten; Tscharntke, Teja; Weisser, Wolfgang W.; Winqvist, Camilla; Woltz, Megan; Bommarco, Riccardo
Source:
Agriculture, ecosystems & environment 2016 v.221 pp. 198-204
ISSN:
0167-8809
Subject:
Aphidoidea; adverse effects; agricultural land; agroecosystems; cropping systems; data collection; ecosystem services; habitats; intensive farming; landscapes; natural enemies; pest control; pests; predatory arthropods; Europe; North America
Abstract:
... Numerous studies show that landscape simplification reduces abundance and diversity of natural enemies in agroecosystems, but its effect on natural pest control remains poorly quantified. Further, natural enemy impacts on pest populations have usually been estimated for a limited number of taxa and have not considered interactions among predator species. In a quantitative synthesis with data colle ...
DOI:
10.1016/j.agee.2016.01.039
Chorus Open Access:
10.1016/j.agee.2016.01.039

3. Agro-ecoregionalization of Iowa using multivariate geographical clustering

Author:
Williams, C.L.; Hargrove, W.W.; Liebman, M.; James, D.E.
Source:
Agriculture, ecosystems & environment 2008 v.123 no.1-3 pp. 161
Subject:
agroecological zones; crops; geographical variation; geographic information systems; risk assessment; simulation models; environmental factors; spatial variation; spectral analysis; land resources; environmental impact; Iowa
Abstract:
... Agro-ecoregionalization is categorization of landscapes for use in crop suitability analysis, strategic agroeconomic development, risk analysis, and other purposes. Past agro-ecoregionalizations have been subjective, expert opinion driven, crop specific, and unsuitable for statistical extrapolation. Use of quantitative analytical methods provides an opportunity for delineation of agro-ecoregions i ...
Handle:
10113/11644
DOI:
10.1016/j.agee.2007.06.006

4. Agroecosystem management effects on soil carbon and nitrogen

Author:
Wood, C.W.; Edwards, J.H.
Source:
Agriculture, ecosystems & environment 1992 v.39 no.3/4 pp. 123
ISSN:
0167-8809
Subject:
tillage; conservation tillage; continuous cropping; crop rotation; Triticum aestivum; Zea mays; Glycine max; soil fertility; nitrogen; carbon; soil organic matter; crop residues; mineralization; nutrient availability; soil depth; biological activity in soil; subtropics; conventional tillage; Alabama
Abstract:
... The cumulative effects of long-term (1980-1990) tillage and crop rotation management on soil organic C and N concentrations and potential mineralization were determined. Tillage systems studied were conventional moldboard plow tillage and conservation tillage, with various crop rotations including: continuous soybean (Glycine max L.)-wheat (Triticum aestivum L.) cover (SW); continuous corn (Zea ma ...
Handle:
10113/10004

5. Alternate satellite models for estimation of sugar beet residue nitrogen credit

Author:
Beeri, O.; Phillips, R.; Carson, P.; Liebig, M.
Source:
Agriculture, ecosystems & environment 2005 v.107 no.1 pp. 21
ISSN:
0167-8809
Subject:
sugar beet; Beta vulgaris; agroecosystems; nitrogen; nutrient balance; carbon nitrogen ratio; crop residues; hyperspectral imagery; multispectral imagery; North Dakota
Abstract:
... Satellite assessment of aboveground plant residue mass and quality is essential for agro-ecosystem management of organic nitrogen (N) because growers credit a portion of residue N towards crop requirements the following spring. Precision agriculture managers are calling for advanced satellite models to map field-scale residue mass and quality. Remote sensing has proven useful for assessing the con ...
Handle:
10113/37657
DOI:
10.1016/j.agee.2004.10.030

6. Anaerobic soil disinfestation impact on soil nutrients dynamics and nitrous oxide emissions in fresh-market tomato

Author:
Di Gioia, Francesco; Ozores-Hampton, Monica; Zhao, Xin; Thomas, John; Wilson, Patrick; Li, Zhuona; Hong, Jason; Albano, Joseph; Swisher, Marilyn; Rosskopf, Erin
Source:
Agriculture, ecosystems & environment 2017 v.240 pp. 194-205
ISSN:
0167-8809
Subject:
Solanum lycopersicum; disinfestation; fresh market; greenhouse gas emissions; molasses; nitrous oxide; nutrient content; nutrient management; nutrients; phytomass; plant growth; polyethylene; polyethylene film; poultry manure; redox potential; risk; soil fertility; soil fumigation; soil nutrient dynamics; soil nutrients; soil pH; soil treatment; temperature; tomatoes
Abstract:
... Anaerobic soil disinfestation (ASD) is proposed as a pre-plant, non-chemical soil disinfestation technique to control several soilborne phytosanitary issues. Limited information is available on the impact of ASD on soil fertility, plant growth, and potential nutrient loss. The objectives of the current study were to evaluate the effects of ASD applied using composted poultry litter (CPL) and molas ...
DOI:
10.1016/j.agee.2017.02.025
Chorus Open Access:
10.1016/j.agee.2017.02.025

7. An empirical model for dissolved phosphorus in runoff from surface-applied fertilizers

Author:
Vadas, P.A.; Owens, L.B.; Sharpley, A.N.
Source:
Agriculture, ecosystems & environment 2008 v.127 no.1-2 pp. 59
ISSN:
0167-8809
Subject:
agricultural land; phosphorus fertilizers; phosphorus; agricultural runoff; prediction; simulation models; model validation; rain; vegetation cover; crop residues; soil; adsorption
Abstract:
... Dissolved phosphorus (P) in runoff from surface-applied fertilizers can be relatively great, but commonly used, field or watershed-scale computer models often do not simulate direct transfer of fertilizer P to runoff. Using data from our own simulated rainfall experiments and published runoff studies, we developed a simple model to predict fertilizer P release during rain and the concentration of ...
Handle:
10113/18704
DOI:
10.1016/j.agee.2008.03.001

8. Annual and seasonal differences in pesticide mixtures within channelized agricultural headwater streams in central Ohio

Author:
Smiley, Peter C.; King, Kevin W.; Fausey, Norman R.
Source:
Agriculture, ecosystems & environment 2014 v.193 pp. 83
ISSN:
0167-8809
Subject:
agricultural watersheds; Ohio; water pollution; streams; seasonal variation; risk; herbicides; herbicide residues; fungicides; fungicide residues; nonpoint source pollution; pesticide mixtures
Abstract:
... Only a limited amount of information on pesticide mixtures within agricultural headwater streams is available. A greater understanding of the characteristics of pesticide mixtures and their spatial and temporal trends within agricultural headwater streams is needed to evaluate the risks of pesticide mixtures. We measured concentrations of 13 pesticides within seven channelized agricultural headwat ...
Handle:
10113/59724
DOI:
10.1016/j.agee.2014.04.022

9. Approaches and mechanisms for ecologically based pest management across multiple scales

Author:
Zhao, Zi-Hua; Reddy, Gadi V.P.; Hui, Cang; Li, Bai-Lian
Source:
Agriculture, ecosystems & environment 2016 v.230 pp. 199-209
ISSN:
0167-8809
Subject:
agrochemicals; agroecosystems; biodiversity; cropland; ecosystem services; habitat conservation; habitats; landscapes; pest control; plant pests
Abstract:
... The past 50 years have seen substantial change of agroecosystems in the world, including an intensified use of agrochemicals and expansion of cropland, resulting in a rapid loss of biodiversity and a reduction of ecosystem services. The effects of these changes, at both the field and landscape scale, on ecologically based pest management (EBPM) in agroecosystems have become increasingly important. ...
DOI:
10.1016/j.agee.2016.06.010
Chorus Open Access:
10.1016/j.agee.2016.06.010

10. Approaches for evaluating subsurface phosphorus loss potential from soil profiles

Author:
Dari, Biswanath; Nair, Vimala D.; Harris, Willie G.
Source:
Agriculture, ecosystems & environment 2017 v.245 pp. 92-99
ISSN:
0167-8809
Subject:
B horizons; Spodosols; Ultisols; adsorption; calcium; dairy manure; equations; losses from soil; magnesium; models; phosphorus; prediction; soil profiles; surface water; water quality
Abstract:
... The importance of subsurface phosphorus (P) transport in deterioration of surface water quality is well documented. Practices and treatments have been identified and modeling approaches have been implemented to decrease the subsurface P load to surface waters. Soil phosphorus storage capacity (SPSC) is a site-assessment tool that predicts the potential for P loss from soils. We examined the use of ...
DOI:
10.1016/j.agee.2017.05.006
Chorus Open Access:
10.1016/j.agee.2017.05.006

11. Arid old-field restoration: Native perennial grasses suppress weeds and erosion, but also suppress native shrubs

Author:
Porensky, Lauren M.; Leger, Elizabeth A.; Davison, Jay; Miller, W. Wally; Goergen, Erin M.; Espeland, Erin K.; Carroll-Moore, Erin M.
Source:
Agriculture, ecosystems & environment 2014 v.184 pp. 135
ISSN:
0167-8809
Subject:
abandoned land; agricultural land; annuals; arid zones; biodiversity; biomass; carbon sequestration; ecosystem services; ecosystems; grasses; habitats; herbaceous plants; indigenous species; invasive species; irrigation; land restoration; perennials; plant density; plant establishment; shrubs; soil stabilization; sowing; water stress; weeds; wildlife; wind erosion; Great Basin States; North America
Abstract:
... Rates of cropland abandonment in arid regions are increasing, and abandoned fields in such regions can have low levels of ecosystem function and biodiversity. Long-lived, drought-tolerant shrubs are dominant components of many arid ecosystems, providing multiple ecosystem services such as soil stabilization, herbaceous plant facilitation, carbon storage and wildlife habitat. On abandoned agricultu ...
Handle:
10113/58316
DOI:
10.1016/j.agee.2013.11.026

12. A soil carbon proxy to predict CH4 and N2O emissions from rewetted agricultural peatlands

Author:
Ye, Rongzhong; Espe, Matthew B.; Linquist, Bruce; Parikh, Sanjai J.; Doane, Timothy A.; Horwath, William R.
Source:
Agriculture, ecosystems & environment 2016 v.220 pp. 64-75
ISSN:
0167-8809
Subject:
greenhouse gases; prediction; rice; soil organic carbon; subsidence; greenhouse gas emissions; nitrogen; peatlands; soil; methane; environmental factors; nitrous oxide; crops
Abstract:
... The temporal and spatial variations in greenhouse gas (GHG) emission estimates in wetlands impede our ability to predict and upscale total emissions; thus, a scalar parameter is needed to predict GHG emissions. We investigated the importance of soil organic carbon (SOC) in the prediction of methane (CH4) and nitrous oxide (N2O) emissions in rewetted agricultural peatlands, positing that both CH4 a ...
DOI:
10.1016/j.agee.2016.01.008
Chorus Open Access:
10.1016/j.agee.2016.01.008

13. Avian community structure among restored riparian habitats in northwestern Mississippi

Author:
Smiley, P.C. Jr.; Maul, J.D.; Cooper, C.M.
Source:
Agriculture, ecosystems & environment 2007 v.122 no.2 pp. 149
Subject:
wild birds; riparian areas; habitats; population dynamics; species diversity; agricultural land; streams; water erosion; bank erosion; seasonal variation; woody plants; Mississippi
Abstract:
... Riparian zones and agricultural fields adjacent to incised streams in northwestern Mississippi are impacted by gully erosion initiated by runoff flowing over unstable streambanks. Currently, installation of erosion control structures (drop pipes) at the riparian zone--agricultural field interface halts gully erosion and simultaneously establishes one of four riparian habitat types. Avian communiti ...
Handle:
10113/2666
DOI:
10.1016/j.agee.2006.12.028

14. Avian influenza, domestic ducks and rice agriculture in Thailand

Author:
Gilbert, M.; Xiao, X.; Chaitaweesub, P.; Kalpravidh, W.; Premashthira, S.; Boles, S.; Slingenbergh, J.
Source:
Agriculture, ecosystems & environment 2007 v.119 no.3-4 pp. 409-415
ISSN:
0167-8809
Subject:
harvest date; crop production; rice; animal husbandry; ducks; poultry production; Oryza sativa; cropping systems; traditional farming; disease transmission; avian influenza; remote sensing; Thailand
Abstract:
... Highly pathogenic avian influenza (HPAI) caused by H5N1 viruses has become a global scale problem which first emerged in southern China and from there spread to other countries in Southeast and East Asia, where it was first confirmed in end 2003. In previous work, geospatial analyses demonstrated that free grazing ducks played critical role in the epidemiology of the disease in Thailand in the win ...
DOI:
10.1016/j.agee.2006.09.001
PubMed:
18418464
PubMed Central:
PMC2311503

15. Avoiding a bad apple: Insect pollination enhances fruit quality and economic value

Author:
Garratt, M.P.D.; Breeze, T.D.; Jenner, N.; Polce, C.; Biesmeijer, J.C.; Potts, S.G.
Source:
Agriculture, ecosystems & environment 2014 v.184 pp. 34-40
ISSN:
0167-8809
Subject:
apples; bioeconomic models; crop yield; economic valuation; ecosystem services; field experimentation; food production; fruit crops; fruit quality; industry; insect pollination; insects; markets; pollinators; United Kingdom
Abstract:
... Insect pollination is important for food production globally and apples are one of the major fruit crops which are reliant on this ecosystem service. It is fundamentally important that the full range of benefits of insect pollination to crop production are understood, if the costs of interventions aiming to enhance pollination are to be compared against the costs of the interventions themselves. M ...
DOI:
10.1016/j.agee.2013.10.032
PubMed:
24748698
PubMed Central:
PMC3990452

16. Balancing multiple objectives in organic feed and forage cropping systems

Author:
Schipanski, Meagan E.; Barbercheck, Mary E.; Murrell, Ebony G.; Harper, Jayson; Finney, Denise M.; Kaye, Jason P.; Mortensen, David A.; Smith, Richard G.
Source:
Agriculture, ecosystems & environment 2017 v.239 pp. 219-227
ISSN:
0167-8809
Subject:
Glycine max; animal manure management; beneficial insects; carbon sinks; crop yield; cropping systems; disturbed soils; forage; forage crops; organic production; profitability; soil organic matter; soil quality; soybeans; tillage; weed control; weeds; Pennsylvania
Abstract:
... Balancing weed suppression, beneficial insect conservation, soil quality and profitability is challenging in organic cropping systems due to reliance on soil disturbance for weed control. We hypothesized that the benefits of tillage can be retained while mitigating adverse impacts on soil quality by alternating tillage with practices that can build soil organic matter. We conducted a four-year exp ...
DOI:
10.1016/j.agee.2017.01.019
Chorus Open Access:
10.1016/j.agee.2017.01.019

17. Benefits of inoculation, P fertilizer and manure on yields of common bean and soybean also increase yield of subsequent maize

Author:
Rurangwa, Edouard; Vanlauwe, Bernard; Giller, Ken E.
Source:
Agriculture, ecosystems & environment 2018 v.261 pp. 219-229
ISSN:
0167-8809
Subject:
agroecological zones; beans; corn; crops; drought; farmers; grain yield; inoculum; phosphorus; phosphorus fertilizers; rain; residual effects; small farms; soybeans; sustainable agriculture; Rwanda
Abstract:
... Common bean and soybean yield poorly on smallholder farms in Rwanda. We evaluated the benefits of inoculation combined with P fertilizer and manure on yields of common bean and soybean in three agro-ecological zones (AEZs), and their residual effects on a subsequent maize crop. In the first season, the treatments included inoculum, three rates of manure, and two rates of P fertilizer, with nine re ...
DOI:
10.1016/j.agee.2017.08.015
PubMed:
29970950
PubMed Central:
PMC5946694

18. Biochar and manure amendments impact soil nutrients and microbial enzymatic activities in a semi-arid irrigated maize cropping system

Author:
Foster, Erika J.; Hansen, Neil; Wallenstein, Matt; Cotrufo, M. Francesca
Source:
Agriculture, ecosystems & environment 2016 v.233 pp. 404-414
ISSN:
0167-8809
Subject:
Pinus; biochar; carbon; corn; crop yield; cropping systems; enzyme activity; irrigation; microbial biomass; nitrogen; nitrogen content; nutrient availability; nutrients; phosphorus; semiarid zones; soil amendments; soil nutrients; soil water; steers; water conservation; Colorado
Abstract:
... To mitigate negative impacts on crop yield from water-saving limited irrigation, we tested the effect of two organic amendments on soil moisture and nutrients. In an experimental maize field in northern Colorado, we tilled in conventional steer manure (30Mgha−1) and fast-pyrolysis pine-wood biochar (30Mgha−1). We quantified impacts on gravimetric soil moisture, total carbon and nitrogen, mineral n ...
DOI:
10.1016/j.agee.2016.09.029
Chorus Open Access:
10.1016/j.agee.2016.09.029

19. Biodiversity and multiple ecosystem functions in an organic farmscape

Author:
Smukler, S.M.; Sanchez-Moreno, S.; Fonte, S.J.; Ferris, H.; Klonsky, K.; O'Geen, A.T.; Scow, K.M.; Steenwerth, K.L.; Jackson, L.E.
Source:
Agriculture, ecosystems & environment 2010 v.139 no.1-2 pp. 80
ISSN:
0167-8809
Subject:
farms; organic production; agroecosystems; spatial variation; biodiversity; nitrate nitrogen; habitats; plant communities; soil biology; ecosystem services; gas emissions; riparian buffers; ponds; drainage channels; functional diversity; indigenous species; soil nematodes; soil microorganisms; earthworms; woody plants; carbon sequestration; infiltration (hydrology); nitrous oxide; California
Abstract:
... To increase ecosystem services provided by their lands, farmers in the United States are managing non-production areas to create a more biodiverse set of habitats and greater landscape heterogeneity. Relatively little is known, however, of the actual environmental outcomes of this practice, termed 'farmscaping'. We inventoried communities of plant and soil organisms and monitored indicators of eco ...
Handle:
10113/46592
DOI:
10.1016/j.agee.2010.07.004

20. Biodiversity of arbuscular mycorrhizal fungi in agroecosystems

Author:
Douds, D.D. Jr.; Millner, P.D.
Source:
Agriculture, ecosystems & environment 1999 v.74 no.1/3 pp. 77
ISSN:
0167-8809
Subject:
agricultural land; ecosystems; mycorrhizal fungi; species diversity; biodiversity; symbiosis; roots; host plants; farming systems; agricultural soils; sporulation; detection; fungal anatomy; vesicular arbuscular mycorrhizae
Abstract:
... Arbuscular mycorrhizal fungi [AMF] are soil fungi which form a mutualistic symbiosis with the roots of plants. A variety of benefits to the host have been ascribed to mycorrhizae, most often enhanced uptake of immobile nutrients from the soil, notably P. An understanding of the impacts of agronomic practices upon communities of these fungi would help to ensure an opportunity for the utilization of ...
Handle:
10113/45458

21. Biological control as a means of enhancing the sustainability of crop/land management systems

Author:
Quimby, P.C.; King, L.R.; Grey, W.E.
Source:
Agriculture, ecosystems & environment 2002 v.88 no.2 pp. 147
ISSN:
0167-8809
Subject:
Avena fatua; Bromus tectorum; Aegilops cylindrica; biological control; land management; crop management; cropping systems; farm inputs; weed control; crops; soil microorganisms; microorganisms; soil management
Abstract:
... Biological control can contribute to the sustainability of crop/land management systems by reducing the inputs currently derived from non-renewable fossil energy sources. Biologically based technology will have to be developed and gradually integrated into management systems that will include some chemicals for a long time to come. A researchable paradigm is presented: using "weed-suppressive soil ...
Handle:
10113/14072
DOI:
10.1016/S0167-8809(01)00251-1

22. Biosolids application to no-till dryland agroecosystems

Author:
Barbarick, K.A.; Ippolito, J.A.; McDaniel, J.; Hansen, N.C.; Peterson, G.A.
Source:
Agriculture, ecosystems & environment 2012 v.150 pp. 72
ISSN:
0167-8809
Subject:
Triticum aestivum; Zea mays; agroecosystems; barium sulfate; biosolids; crop rotation; dryland farming; fallow; fertilizer rates; grain yield; nitrate nitrogen; nitrogen fertilizers; no-tillage; phosphorus; soil amendments; soil depth; soil fertility; soil formation; wastewater treatment; wheat; zinc
Abstract:
... Dryland agroecosystems are generally ideal environments for recycling biosolids. However, what is the efficacy of biosolids addition to a no-till dryland management agroecosystem? From 2000 to 2010, we studied application of biosolids from the Littleton/Englewood, CO Wastewater Treatment Plant versus commercial N fertilizer in dryland no-till wheat (Triticum aestivum, L.)–fallow (WF) and wheat–cor ...
Handle:
10113/55018
DOI:
10.1016/j.agee.2012.01.012

23. Bird use of grain fields and implications for habitat management at airports

Author:
Iglay, Raymond B.; Buckingham, Bruce N.; Seamans, Thomas W.; Martin, James A.; Blackwell, Bradley F.; Belant, Jerrold L.; DeVault, Travis L.
Source:
Agriculture, ecosystems & environment 2017 v.242 pp. 34-42
ISSN:
0167-8809
Subject:
aircraft; airports; analysis of variance; aviation; birds; corn; cropland; energy crops; flocks; habitat conservation; land cover; land management; models; soybeans; stubble; wheat; wildlife; Ohio
Abstract:
... Airport properties often include agricultural land cover that can attract wildlife species hazardous to aircraft, despite recommendations against row crops near air operations areas. However, few studies have directly quantified bird use of corn, wheat, and soybean fields relative to bird-aircraft collision (strike) hazard levels to support land cover recommendations. Therefore, we compared bird u ...
DOI:
10.1016/j.agee.2017.03.022
Chorus Open Access:
10.1016/j.agee.2017.03.022

24. Can productivity and profitability be enhanced in intensively managed cereal systems while reducing the environmental footprint of production? Assessing sustainable intensification options in the breadbasket of India

Author:
Kumar, Virender; Jat, Hanuman S.; Sharma, Parbodh C.; Balwinder-Singh,; Gathala, Mahesh K.; Malik, Ram K.; Kamboj, Baldev R.; Yadav, Arvind K.; Ladha, Jagdish K.; Raman, Anitha; Sharma, D.K.; McDonald, Andrew
Source:
Agriculture, ecosystems & environment 2018 v.252 pp. 132-147
ISSN:
0167-8809
Subject:
conventional tillage; corn; cropping systems; crops; direct seeding; ecological footprint; energy; farmers; global warming; grain yield; irrigation water; labor; markets; mung beans; no-tillage; profitability; puddling; resource management; rice; risk; supply chain; wheat; India; Indo-Gangetic Plain
Abstract:
... In the most productive area of the Indo-Gangetic Plains in Northwest India where high yields of rice and wheat are commonplace, a medium-term cropping system trial was conducted in Haryana State. The goal of the study was to identify integrated management options for further improving productivity and profitability while rationalizing resource use and reducing environmental externalities (i.e., “s ...
DOI:
10.1016/j.agee.2017.10.006
PubMed:
29343882
PubMed Central:
PMC5727681

25. Carbon dioxide and water fluxes from switchgrass managed for bioenergy production

Author:
Skinner, R. Howard; Adler, Paul R.
Source:
Agriculture, ecosystems & environment 2010 v.138 no.3-4 pp. 257
ISSN:
0167-8809
Subject:
Panicum virgatum; energy crops; crop management; carbon dioxide; carbon sequestration; plant establishment; plant available water; water management; primary productivity; temporal variation; gas emissions; seasonal variation; crop yield; Pennsylvania
Abstract:
... Switchgrass (Panicum virgatum L.) is an important bioenergy crop with the potential to provide a reliable supply of renewable energy while also sequestering C in the soil. The purpose of this study was to quantify CO₂ fluxes during the establishment and early production years of a young switchgrass stand in the northeastern USA. Switchgrass was sown in June 2004 and daily CO₂ fluxes were measured ...
Handle:
10113/46160
DOI:
10.1016/j.agee.2010.05.008

26. Changes in soil respiration across a chronosequence of tallgrass prairie reconstructions

Author:
Maher, Ryan M.; Asbjornsen, Heidi; Kolka, Randall K.; Cambardella, Cynthia A.; Raich, James W.
Source:
Agriculture, ecosystems & environment 2010 v.139 no.4 pp. 749
ISSN:
0167-8809
Subject:
biomass; chronosequences; climatic factors; correlation; growing season; prairies; primary productivity; roots; soil respiration; soil strength; soil temperature; soil water; Iowa
Abstract:
... Close relationships among climatic factors and soil respiration (Rₛ) are commonly reported. However, variation in Rₛ across the landscape is compounded by site-specific differences that impede the development of spatially explicit models. Among factors that influence Rₛ, the effect of ecosystem age is poorly documented. We hypothesized that Rₛ increases with grassland age and tested this hypothesi ...
Handle:
10113/48695
DOI:
10.1016/j.agee.2010.09.009

27. Characterizing the solid-solution partitioning coefficient and plant uptake factor of As, Cd, and Pb in California croplands

Author:
Chen, Weiping; Li, Lianqing; Chang, Andrew C.; Wu, Laosheng; Chaney, Rufus L.; Smith, Richard; Ajwa, Husein
Source:
Agriculture, ecosystems & environment 2009 v.129 no.1-3 pp. 212
ISSN:
0167-8809
Subject:
risk assessment; probabilistic models; agricultural land; agricultural soils; soil surveys; trace elements; arsenic; cadmium; lead; partition coefficients; uptake mechanisms; California
Abstract:
... In risk assessment models, solid-solution partition coefficient, K d, and plant uptake factor, PUF, are often employed to depict the fate and transport of trace elements in soils. The trustworthiness of risk assessments depends on the reliability of the parameters used. In this study, we examined K d and PUF for As, Cd and Pb based on soils and plant tissues obtained from 70 crop production fields ...
Handle:
10113/21854
DOI:
10.1016/j.agee.2008.09.001

28. Chemical characterization of soil phosphorus and organic matter in different cropping systems in Maine, U.S.A

Author:
Ohno, T.; Griffin, T.S.; Liebman, M.; Porter, G.A.
Source:
Agriculture, ecosystems & environment 2005 v.105 no.4 pp. 625
ISSN:
0167-8809
Subject:
phosphorus; soil nutrient balance; animal manures; green manures; soil fertility; cropping systems; nutrient uptake; simulation models
Abstract:
... To minimize purchased inputs, sustainable agriculture systems often use green- or animal-manure as a nitrogen source for crops. The addition of these materials also have positive impacts on soil phosphorus (P) availability. This study was conducted to investigate the effects of animal- and legume-based cropping systems in place for 5-13 years on the chemistry of organic matter and soil P. Two crop ...
Handle:
10113/17537

29. Comparison of process-based models to quantify nutrient flows and greenhouse gas emissions associated with milk production

Author:
Veltman, Karin; Jones, Curtis D.; Gaillard, Richard; Cela, Sebastian; Chase, Larry; Duval, Benjamin D.; Izaurralde, R. César; Ketterings, Quirine M.; Li, Changsheng; Matlock, Marty; Reddy, Ashwan; Rotz, Alan; Salas, William; Vadas, Peter; Jolliet, Olivier
Source:
Agriculture, ecosystems & environment 2017 v.237 pp. 31-44
ISSN:
0167-8809
Subject:
accounting; ammonia; anaerobic digestion; animal manure management; animals; barns; carbon; farms; food production; global warming; greenhouse gas emissions; greenhouse gases; methane; milk production; models; nitrogen; nitrous oxide; phosphorus; pollutants; prediction; production technology; soil
Abstract:
... Assessing and improving the sustainability of dairy production systems is essential to secure future food production. This requires a holistic approach to reveal trade-offs between emissions of the different greenhouse gases (GHG) and nutrient-based pollutants and to ensure that interactions between farm components are taken into account. Process-based models are essential to support whole-farm ma ...
Handle:
10113/5618131
DOI:
10.1016/j.agee.2016.12.018
Chorus Open Access:
10.1016/j.agee.2016.12.018

30. Comparison of soil quality and productivity at two sites differing in profile structure and topsoil properties

Author:
Merrill, Stephen D.; Liebig, Mark A.; Tanaka, Donald L.; Krupinsky, Joseph M.; Hanson, Jonathan D.
Source:
Agriculture, ecosystems & environment 2013 v.179 pp. 53
ISSN:
0167-8809
Subject:
Pisum sativum; Triticum aestivum; Zea mays; atmospheric precipitation; available water capacity; corn; forage; glacial till; hydraulic conductivity; peas; phosphorus; root growth; roots; seed yield; seeds; soil conservation; soil productivity; soil quality; soil water; spring wheat; topsoil; North Dakota
Abstract:
... Improved means for assessing the impact of management on soil quality (SQ) are needed. Objectives of this study were to assess SQ of two soils with similar taxonomy but dissimilar soil profile characteristics and compare SQ ratings with crop productivity. Soils evaluated included a glacial-till derived (GTD) loam/clay loam and an alluvial-derived (AD) sandy loam in central North Dakota, USA (403mm ...
Handle:
10113/58403
DOI:
10.1016/j.agee.2013.07.011

31. Continuous biosolids application affects grain elemental concentrations in a dryland-wheat agroecosystem

Author:
Barbarick, K.A.; Ippolito, J.A.
Source:
Agriculture, ecosystems & environment 2009 v.129 no.1-3 pp. 340
ISSN:
0167-8809
Subject:
dryland farming; agroecosystems; biosolids; sewage sludge; land application; soil amendments; trace elements; bioavailability; regression analysis; statistical models; Triticum aestivum; winter wheat; grains; chemical constituents of plants; prediction; Colorado
Abstract:
... Continuous land application of biosolids in a beneficial-use program changes trace-element availability to plants over time. Consequently, what regression model, if any, could best predict wheat (Triticum aestivum L.) grain concentrations in a biosolids-amended dryland agroecosystem? We calculated paraboloid, linear, quadratic, and exponential-rise-to-a maximum equations for grain Ba, Cd, Cu, Mn, ...
Handle:
10113/21823
DOI:
10.1016/j.agee.2008.09.005

32. Contrasting responses of seed yield to elevated carbon dioxide under field conditions within Phaseolus vulgaris

Author:
Bunce, James A.
Source:
Agriculture, ecosystems & environment 2008 v.128 no.4 pp. 219
ISSN:
0167-8809
Subject:
Phaseolus vulgaris; beans; C3 plants; seed productivity; vegetative growth; gas exchange; atmospheric circulation; carbon dioxide
Abstract:
... The rising concentration of carbon dioxide [CO₂] in the atmosphere represents an increase in a growth-limiting resource for C₃ crop species. Identification of lines or characteristics of lines which have superior yield at elevated [CO₂] could aid in adaptation to this global change. While intraspecific variation in responses to elevated [CO₂] has been found in several species, intraspecific differ ...
Handle:
10113/19556
DOI:
10.1016/j.agee.2008.06.003

33. Converting exotic forages to native warm-season grass can increase avian productivity in beef production systems

Author:
Monroe, Adrian P.; Chandler, Richard B.; Burger, L. Wes; Martin, James A.
Source:
Agriculture, ecosystems & environment 2016 v.233 pp. 85-93
ISSN:
0167-8809
Subject:
Andropogon gerardii; Bayesian theory; Cynodon dactylon; Festuca arundinacea subsp. arundinacea; Schizachyrium scoparium; Sorghastrum nutans; beef; beef cattle; birds; ecosystems; forage grasses; grasslands; grazing; habitats; meat production; nesting; nesting sites; nests; pastures; population dynamics; production technology; vegetation structure; warm season; warm season grasses; Mississippi
Abstract:
... Grasslands are among the most imperiled ecosystems in the world, and establishment of exotic forage grasses and management for uniform utilization may have contributed to population declines of many obligate grassland bird species in North America. Native warm-season grasses (NWSG) are increasingly promoted as viable alternatives to exotic forages currently in production such as bermudagrass (Cyno ...
DOI:
10.1016/j.agee.2016.08.024
Chorus Open Access:
10.1016/j.agee.2016.08.024

34. Cover crop effects on nitrous oxide emission from a manure-treated Mollisol

Author:
Jarecki, Marek K.; Parkin, Timothy B.; Chan, Alvarus S.K.; Kaspar, Thomas C.; Moorman, Thomas B.; Singer, Jeremy W.; Kerr, Brian J.; Hatfield, Jerry L.; Jones, Raymond
Source:
Agriculture, ecosystems & environment 2009 v.134 no.1-2 pp. 29
ISSN:
0167-8809
Subject:
air pollution; nitrous oxide; gas emissions; greenhouse gases; pollution control; cover crops; Secale cereale; rye; Avena sativa; oats; soil amendments; pig manure; application rate; application timing; Mollisols; leaching; nitrogen fertilizers; urea ammonium nitrate; good agricultural practices; crop production; Iowa
Abstract:
... Agriculture contributes 40-60% of the total annual N₂O emissions to the atmosphere. Development of management practices to reduce these emissions would have a significant impact on greenhouse gas levels. Non-leguminous cover crops are efficient scavengers of residual soil NO₃, thereby reducing leaching losses. However, the effect of a grass cover crop on N₂O emissions from soil receiving liquid sw ...
Handle:
10113/36837
DOI:
10.1016/j.agee.2009.05.008

35. Cover crops increase foraging activity of omnivorous predators in seed patches and facilitate weed biological control

Author:
Blubaugh, Carmen K.; Hagler, James R.; Machtley, Scott A.; Kaplan, Ian
Source:
Agriculture, ecosystems & environment 2016 v.231 pp. 264-270
ISSN:
0167-8809
Subject:
Carabidae; biological control; cover crops; foraging; granivores; habitats; invertebrates; omnivores; predators; seed predation; seeds; weeds
Abstract:
... Omnivorous predators are key contributors to biocontrol, but the relative importance and interactive effects of ecological variables (e.g., habitat and prey- or plant-based foods) that impact their colonization, abundance, and/or function in crop fields are poorly understood. Here, we use immuno-marking to examine both activity density and consumption by omnivorous ground beetles in response to ex ...
DOI:
10.1016/j.agee.2016.06.045
Chorus Open Access:
10.1016/j.agee.2016.06.045

36. Cowpea (Vigna unguiculata L. Walp) hosts several widespread bradyrhizobial root nodule symbionts across contrasting agro-ecological production areas in Kenya

Author:
Ndungu, Samuel Mathu; Messmer, Monika M.; Ziegler, Dominik; Gamper, Hannes A.; Mészáros, Éva; Thuita, Moses; Vanlauwe, Bernard; Frossard, Emmanuel; Thonar, Cécile
Source:
Agriculture, ecosystems & environment 2018 v.261 pp. 161-171
ISSN:
0167-8809
Subject:
Bradyrhizobium; Vigna unguiculata; agroecological zones; cowpeas; crop rotation; databases; drought; hosts; matrix-assisted laser desorption-ionization mass spectrometry; pH; protein composition; ribosomal RNA; root nodules; screening; sequence analysis; soil texture; symbionts; vegetation cover; Kenya
Abstract:
... Cowpea (Vigna unguiculata L. Walp.) is an important African food legume suitable for dry regions. It is the main legume in two contrasting agro-ecological regions of Kenya as an important component of crop rotations because of its relative tolerance to unpredictable drought events. This study was carried out in an effort to establish a collection of bacterial root nodule symbionts and determine th ...
DOI:
10.1016/j.agee.2017.12.014
PubMed:
29970945
PubMed Central:
PMC5946706

37. Critical review of the impacts of grazing intensity on soil organic carbon storage and other soil quality indicators in extensively managed grasslands

Author:
Abdalla, M.; Hastings, A.; Chadwick, D.R.; Jones, D.L.; Evans, C.D.; Jones, M.B.; Rees, R.M.; Smith, P.
Source:
Agriculture, ecosystems & environment 2018 v.253 pp. 62-81
ISSN:
0167-8809
Subject:
agroecosystems; bulk density; carbon sequestration; carrying capacity; climatic zones; grassland soils; grasslands; grazing intensity; guidelines; livestock; meta-analysis; nitrogen content; soil organic carbon; soil pH; soil quality
Abstract:
... Livestock grazing intensity (GI) is thought to have a major impact on soil organic carbon (SOC) storage and soil quality indicators in grassland agroecosystems. To critically investigate this, we conducted a global review and meta-analysis of 83 studies of extensive grazing, covering 164 sites across different countries and climatic zones. Unlike previous published reviews we normalized the SOC an ...
DOI:
10.1016/j.agee.2017.10.023
PubMed:
29398743
PubMed Central:
PMC5727677

38. Cultivation and domestication of highbush blueberry (Vaccinium corymbosum) alters abundance, diversity and virulence of entomopathogenic nematodes

Author:
Rivera, Monique J.; Rodriguez-Saona, Cesar; Egizi, Andrea; Fonseca, Dina M.; Jennings, David E.; Koppenhöfer, Albrecht M.
Source:
Agriculture, ecosystems & environment 2016 v.222 pp. 148-155
ISSN:
0167-8809
Subject:
Anomala orientalis; DNA barcoding; Galleria mellonella; Steinernema glaseri; Vaccinium corymbosum; barcoding; boron; domestication; entomopathogenic nematodes; genetic databases; genetic variation; insect larvae; organic matter; pH; soil nutrients; soil sampling; soil water; virulence; wild plants; New Jersey
Abstract:
... We investigated the interactive effect of plant domestication and perennial cultivation on abundance, diversity and virulence of entomopathogenic nematodes (EPN) associated with highbush blueberry (Vaccinium corymbosum). The rhizospheric soil of V. corymbosum plants was sampled in coupled wild and cultivated sites within the Pinelands National Reserve, New Jersey, USA from 2011 to 2013 at three po ...
DOI:
10.1016/j.agee.2016.02.013
Chorus Open Access:
10.1016/j.agee.2016.02.013

39. Dairy heifer management impacts manure N collection and cycling through crops in Wisconsin, USA

Author:
Powell, J. Mark; Russelle, Michael P.
Source:
Agriculture, ecosystems & environment 2009 v.131 no.3-4 pp. 170
ISSN:
0167-8809
Subject:
dairy cows; dairy manure; animal husbandry; heifers; biogeochemical cycles; crops; nitrogen fertilizers; animal manure management; land application; agricultural land; seasonal variation; crop rotation; field crops; fertilizer rates; nitrogen balance; urine; ammonia; Wisconsin
Abstract:
... Escalating energy and fertilizer N prices have renewed farmer interests in methods that reduce manure management costs and enhance the fertilizer value of manure. At the same time, air quality legislation seeks to mitigate ammonia loss from animal operations. We compared two dairy heifer management practices on manure N capture and recycling through crops: the conventional practice of barn manure ...
Handle:
10113/30032
DOI:
10.1016/j.agee.2009.01.012

40. Development of a method to determine bioavailable phosphorus loss in agricultural runoff

Author:
Robinson, J.S.; Sharpley, A.N.; Smith, S.J.
Source:
Agriculture, ecosystems & environment 1994 v.47 no.4 pp. 287
ISSN:
0167-8809
Subject:
water quality; water pollution; Oklahoma; Texas
Abstract:
... The loss of bioavailable P (BAP) in agricultural runoff can accelerate the eutrophication of receiving water bodies. Although several algal assays and chemical extractions have been proposed to estimate BAP, procedural and theoretical limitations have restricted their widespread use. This study evaluates the use of iron-oxide impregnated paper strips (Fe-oxide strips) to estimate the BAP content o ...
Handle:
10113/18697

41. Diversified cropping systems support greater microbial cycling and retention of carbon and nitrogen

Author:
King, Alison E.; Hofmockel, Kirsten S.
Source:
Agriculture, ecosystems & environment 2017 v.240 pp. 66-76
ISSN:
0167-8809
Subject:
Glycine max; Medicago sativa; Trifolium pratense; Zea mays; ammonium compounds; carbon; composted manure; conservation tillage; corn; crop rotation; enzyme activity; enzymes; growing season; microbial biomass; nitrogen; nitrogen fertilizers; plowing; proteolysis; soil; soil microorganisms; soybeans; support systems; Iowa
Abstract:
... Diversifying biologically simple cropping systems often entails altering other management practices, such as tillage regime or nitrogen (N) source. We hypothesized that the interaction of crop rotation, N source, and tillage in diversified cropping systems would promote microbially-mediated soil C and N cycling while attenuating inorganic N pools. We studied a cropping systems trial in its 10th ye ...
DOI:
10.1016/j.agee.2017.01.040
Chorus Open Access:
10.1016/j.agee.2017.01.040

42. Does North Appalachian agriculture contribute to soil carbon sequestration

Author:
López-Bellido, Rafael J.; Lal, Rattan; Owens, Lloyd B.; López-Bellido, Luis
Source:
Agriculture, ecosystems & environment 2010 v.137 no.3-4 pp. 373
ISSN:
0167-8809
Subject:
agroecosystems; carbon sequestration; carbon dioxide; gas emissions; long term experiments; soil management; input output analysis; soil organic carbon; forests; forest soils; Zea mays; corn; grain crops; no-tillage; animal manures; organic fertilizers; cultivars; crop residues; biodegradation; Ohio; Appalachian region
Abstract:
... Agricultural systems are important for world ecosystems. They can be managed to moderate CO₂ emissions. World soils can be both a sink and source of atmospheric CO₂, but it is a slow process. Data from long-term soil management experiments are needed to assess soil carbon (C) sink capacity through a complete life cycle analysis of direct and hidden C changes. Eight commonly used agricultural syste ...
Handle:
10113/42893
DOI:
10.1016/j.agee.2010.03.012

43. Does organic farming enhance biodiversity in Mediterranean vineyards? A case study with bats and arachnids

Author:
Froidevaux, Jérémy S.P.; Louboutin, Bastien; Jones, Gareth
Source:
Agriculture, ecosystems & environment 2017 v.249 pp. 112-122
ISSN:
0167-8809
Subject:
Arachnida; Chiroptera; agroecosystems; basins; birds; case studies; experimental design; ground vegetation; habitats; home range; insects; landscapes; organic production; rivers; species diversity; vegetation cover; vineyards; France
Abstract:
... The effectiveness of organic farming for promoting biodiversity has been widely documented, yet most studies have been undertaken in temperate agroecosystems with a focus on birds, insects and plants. Despite the Mediterranean basin being a biodiversity hotspot for conservation priorities, the potential benefits of organic farming for biodiversity there has received little attention. Here, we asse ...
DOI:
10.1016/j.agee.2017.08.012
PubMed:
29104334
PubMed Central:
PMC5614100

44. Dynamic spatially explicit mass-balance modeling for targeted watershed phosphorus management. II. Model application

Author:
Meals, Donald W.; Cassell, E. Alan; Hughell, David; Wood, Lynnette; Jokela, William E.; Parsons, Robert
Source:
Agriculture, ecosystems & environment 2008 v.127 no.3-4 pp. 223
ISSN:
0167-8809
Subject:
agricultural land; phosphorus; losses from soil; surface water; water pollution; nonpoint source pollution; simulation models; balance studies; mass transfer; nutrient management; agricultural watersheds; temporal variation; spatial variation; dairy farming; model validation; calibration; lawns and turf; grasslands; field crops; erosion control; cropping systems; soil fertility; soil test values; Vermont
Abstract:
... Cost-effective nonpoint source phosphorus (P) control should target the land areas at greatest risk for P loss. We combined mass-balance modeling and geographic analysis to identify and map high-risk areas for P export by integrating long-term P input/output accounting with spatially variable physiographic, land use, and agronomic factors. The dynamic interactive simulation of phosphorus loss area ...
Handle:
10113/18982
DOI:
10.1016/j.agee.2008.04.005

45. Dynamic spatially explicit mass-balance modeling for targeted watershed phosphorus management. I. Model development

Author:
Meals, Donald W.; Alan Cassell, E.; Hughell, David; Wood, Lynnette; Jokela, William E.; Parsons, Robert
Source:
Agriculture, ecosystems & environment 2008 v.127 no.3-4 pp. 189
ISSN:
0167-8809
Subject:
surface water; water pollution; phosphorus; nonpoint source pollution; livestock production; simulation models; nutrient management; balance studies; mass transfer; spatial variation; agricultural runoff; temporal variation; land use; spatial data; geographic information systems; input output analysis
Abstract:
... Surface waters are frequently impaired by excessive phosphorus (P) from nonpoint sources, especially in regions of intensive livestock agriculture. Despite concerted efforts to apply new management measures, reductions in nonpoint source P loads have been difficult to accomplish. Watershed management to reduce P export could be more cost-effective if treatments were targeted to critical source are ...
Handle:
10113/18875
DOI:
10.1016/j.agee.2008.04.004

46. Effect of the application of cattle urine with or without the nitrification inhibitor DCD, and dung on greenhouse gas emissions from a UK grassland soil

Author:
Cardenas, L.M.; Misselbrook, T.M.; Hodgson, C.; Donovan, N.; Gilhespy, S.; Smith, K.A.; Dhanoa, M.S.; Chadwick, D.
Source:
Agriculture, ecosystems & environment 2016 v.235 pp. 229-241
ISSN:
0167-8809
Subject:
autumn; cattle; clay loam soils; dicyandiamide; emissions factor; feces; grassland soils; grasslands; grazing; greenhouse gas emissions; greenhouse gases; inventories; methane; nitrification inhibitors; nitrogen; nitrous oxide; nutrients; spring; summer; uncertainty; urine; United Kingdom
Abstract:
... Emissions of nitrous oxide (N2O) from soils from grazed grasslands have large uncertainty due to the great spatial variability of excreta deposition, resulting in heterogeneous distribution of nutrients. The contribution of urine to the labile N pool, much larger than that from dung, is likely to be a major source of emissions so efforts to determine N2O emission factors (EFs) from urine and dung ...
DOI:
10.1016/j.agee.2016.10.025
PubMed:
27974862
PubMed Central:
PMC5142719

47. Effects of ALS-inhibitor herbicides, crop sequence, and fertilization on natural soil suppressiveness to Striga hermonthica

Author:
Ahonsi, M.O.; Berner, D.K.; Emechebe, A.M.; Lagoke, S.T.
Source:
Agriculture, ecosystems & environment 2004 v.104 no.3 pp. 453
ISSN:
0167-8809
Subject:
Striga hermonthica; acetolactate synthase; integrated weed management; suppressive soils; soybeans; Glycine max; crop rotation; imazaquin; nicosulfuron; herbicides; corn; Zea mays; Sub-Saharan Africa; Western Africa
Abstract:
... Striga hermonthica remains one of the greatest biological threats to cereal production in the savannahs of sub-Saharan Africa. Control efforts at the International Institute of Tropical Agriculture (IITA), Nigeria, focus on developing integrated S. hermonthica management (ISM) options such as legume-cereal rotation, use of host-plant resistance, soil-based biological control exploiting enhancement ...
Handle:
10113/750
DOI:
10.1016/j.agee.2004.01.042

48. Effects of composted swine manure on weed seedbank

Author:
Menalled, F.D.; Kohler, K.A.; Buhler, D.D.; Liebman, M.
Source:
Agriculture, ecosystems & environment 2005 v.111 no.1-4 pp. 63
ISSN:
0167-8809
Subject:
annual weeds; botanical composition; viability; pig manure; composted manure; weeds; plant communities; buried seeds; crop residues; litter (bedding); field experimentation; seedling emergence; chiseling; crop rotation; soil amendments; Triticum aestivum; winter wheat; Zea mays; corn; Glycine max; soybeans; Iowa
Abstract:
... Deep-bedded hoop structures where pigs are raised on a thick layer of crop residues represent a promising swine production system that allows recycling of farm waste products. A field study was conducted to evaluate the impact of swine compost on weed seedbank abundance, seed persistence, and seedling emergence. Experiments were conducted from 1998 to 2001 in a chisel plow corn-soybean-winter whea ...
Handle:
10113/35674
DOI:
10.1016/j.agee.2005.04.027

49. Effects of crop type and harvest on nest survival and productivity of dickcissels in semi-natural grasslands

Author:
Conkling, Tara J.; Belant, Jerrold L.; DeVault, Travis L.; Martin, James A.
Source:
Agriculture, ecosystems & environment 2017 v.240 pp. 224-232
ISSN:
0167-8809
Subject:
Panicum virgatum; biofuels; birds; botanical composition; climate change; ecosystems; energy; fuel production; grasslands; indigenous species; nesting; nests; perennials; reproductive success; warm season grasses; wildlife management; United States
Abstract:
... Recent focus on climate change and global energy production has increased interest in developing biofuels including perennial native grasses (e.g. switchgrass [Panicum virgatum]) as viable energy commodities while simultaneously maintaining ecosystem function and biodiversity. However, there is limited research examining the effects of biofuel-focused grasslands on grassland bird reproductive succ ...
DOI:
10.1016/j.agee.2017.01.028
Chorus Open Access:
10.1016/j.agee.2017.01.028

50. Effects of elevated atmospheric CO2 on root dynamics and productivity of sorghum grown under conventional and conservation agricultural management practices

Author:
Pritchard, S.G.; Prior, S.A.; Rogers, H.H.; Davis, M.A.; Runion, G.B.; Popham, T.W.
Source:
Agriculture, ecosystems & environment 2006 v.113 no.1-4 pp. 175
ISSN:
0167-8809
Subject:
Sorghum bicolor; carbon dioxide; elevated atmospheric gases; grain yield; roots; root growth; conventional tillage; fallow; crop management; no-tillage; cover crops; Trifolium repens; crop residues; plant development; seasonal variation; spatial distribution; Alabama
Abstract:
... Although it is widely acknowledged that rising atmospheric CO2 concentrations will increase crop root growth, no study has considered how this response could be influenced by agricultural management practices. Therefore, we examined the influence of elevated atmospheric CO2 (ambient + 360 micromole mol-1) on root dynamics of sorghum (Sorghum bicolor) produced under conventional (tillage following ...
Handle:
10113/14301
DOI:
10.1016/j.agee.2005.09.010