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- Author:
- Bijesh Maharjan, et al. ; Saurav Das; Show all 2 Author
- Source:
- Ecological indicators 2022 v.144 pp. 109468
- ISSN:
- 1470-160X
- Subject:
- Natural Resources Conservation Service; agroecology; climate; cropland; land classification; land use; soil heterogeneity; soil quality; Nebraska
- Abstract:
- ... There is a growing consensus on a need for measuring the dynamic soil properties of croplands and even comparisons with a reference state or native land. These measurements and paired comparisons will create the capacity to determine soil health management effects and targets. However, the complex soil heterogeneity and climate variations make soil health potential variable and confound the effect ...
- DOI:
- 10.1016/j.ecolind.2022.109468
- https://doi.org/10.1016/j.ecolind.2022.109468
- Author:
- Bijesh Maharjan, et al. ; Dinesh Panday; Maysoon M. Mikha; Xiaocun Sun; Show all 4 Authors
- Source:
- Agrosystems, geosciences & environment 2021 v.4 no.1 pp. e20145
- ISSN:
- 2639-6696
- Subject:
- Zea mays; adverse effects; coal; combustion; composted manure; corn; environment; irrigation; pH; sandy loam soils; semiarid zones; soil amendments; soil organic carbon; urea; Nebraska
- Abstract:
- ... Soil amendments with high carbon (C) content can be effective in semi‐arid regions where soils are characterized by low C. A field study was conducted in 2016–2018 to evaluate the effect of char on soil chemical properties and irrigated maize (Zea mays L.) yields in sandy loam fertilized with urea or composted manure. Carbon‐rich char used was a product of coal combustion residue from a local fact ...
- Handle:
- 10113/7709485
- DOI:
- 10.1002/agg2.20145
- https://doi.org/10.1002/agg2.20145
- Author:
- Bijesh Maharjan, et al. ; Saurav Das; Rex Nielsen; Gary W. Hergert; Show all 4 Authors
- Source:
- Agronomy journal 2021 v.113 no.6 pp. 5383-5397
- ISSN:
- 0002-1962
- Subject:
- agronomy; cattle manure; corn; grain yield; irrigation; nitrate nitrogen; nitrogen fertilizers; nutrient use efficiency; regression analysis; soil organic matter
- Abstract:
- ... It takes years, if not decades, before measurable changes in crop productivity and soil properties due to management practices can be detected. The objective of this experiment was to evaluate the effects of long‐term cattle manure and inorganic fertilizer applications on irrigated continuous maize grain yield, yield stability and reliability, nitrogen use efficiency (NUE), and soil properties. Th ...
- DOI:
- 10.1002/agj2.20713
- https://doi.org/10.1002/agj2.20713
- Author:
- Bijesh Maharjan, et al. ; Dinesh Panday; Maysoon M. Mikha; Show all 3 Authors
- Source:
- Agrosystems, geosciences & environment 2020 v.3 no.1 pp. e20123
- ISSN:
- 2639-6696
- Subject:
- ammonia; ammonium nitrogen; cation exchange capacity; coal; combustion; crop yield; hydrolysis; sandy loam soils; soil pH; sorption; urea; volatilization
- Abstract:
- ... Ammonia (NH₃) volatilization loss adversely affects N availability in soil‐plant systems, reduces crop yield, and negatively impacts environment. Char (coal combustion residue), which contains up to 293 g kg⁻¹ total C by weight, has been shown to reduce NH₃ volatilization due to its considerably high surface area and cation exchange capacity. The NH₃ loss can be greatly affected by a shift in soil ...
- Handle:
- 10113/7709421
- DOI:
- 10.1002/agg2.20123
- https://doi.org/10.1002/agg2.20123
- Author:
- Bijesh Maharjan, et al. ; Arindam Malakar; Daniel D. Snow; Michael Kaiser; Jordan Shields; Harkamal Walia; Daran Rudnick; Chittaranjan Ray; Show all 8 Authors
- Source:
- Science of the total environment 2022 v.806 pp. 150967
- ISSN:
- 0048-9697
- Subject:
- agricultural soils; arsenic; bioavailability; biomass; corn; environment; ferrihydrite; food safety; irrigated farming; irrigation water; nutrient retention; nutrient use efficiency; plant growth; rhizosphere; soil amendments; sustainable agriculture; uranium; water content; Corn Belt region
- Abstract:
- ... Improvement of nutrient use efficiency and limiting trace elements such as arsenic and uranium bioavailability is critical for sustainable agriculture and food safety. Arsenic and uranium possess different properties and mobility in soils, which complicates the effort to reduce their uptake by plants. Here, we postulate that unsaturated soil amended with ferrihydrite nanominerals leads to improved ...
- DOI:
- 10.1016/j.scitotenv.2021.150967
- https://doi.org/10.1016/j.scitotenv.2021.150967
- Author:
- Bijesh Maharjan, et al. ; Dinesh Panday; Humberto Blanco‐Canqui; Maysoon M. Mikha; Show all 4 Authors
- Source:
- Agrosystems, geosciences & environment 2021 v.4 no.3 pp. e20171
- ISSN:
- 2639-6696
- Subject:
- Beta vulgaris; Phaseolus vulgaris; Zea mays; beets; biochar; composted manure; corn; dry beans; environment; leaves; nutrient uptake; sandy loam soils; semiarid soils; soil organic carbon; sugar beet; toxic substances
- Abstract:
- ... Applying soil amendments with high C content can potentially improve soil properties and increase crop yields. The objective of this 3‐yr field study was to evaluate the effects of organic amendments on soil organic C (SOC), chemical properties, crop nutrient uptake, and crop yields in a low C sandy loam soil near Scottsbluff, NE. The field was planted to dry bean (Phaseolus vulgaris L.) in 2017, ...
- Handle:
- 10113/7491684
- DOI:
- 10.1002/agg2.20171
- https://doi.org/10.1002/agg2.20171
- Author:
- Bijesh Maharjan, et al. ; Deepak Ghimire; Saurav Das; Nathan D. Mueller; Cody F. Creech; Dipak Santra; P. Stephen Baenziger; Amanda C. Easterly; Brian Maust; Show all 9 Authors
- Source:
- Agronomy journal 2021 v.113 no.5 pp. 4348-4368
- ISSN:
- 0002-1962
- Subject:
- Triticum aestivum; agronomy; cultivars; grain protein; grain yield; nitrogen; protein content; risk; spring; water supply; winter; winter wheat; Nebraska
- Abstract:
- ... Low grain protein in hard red winter (HRW) wheat (Triticum aestivum L.) is a serious challenge for rainfed wheat growers, particularly in years with elevated grain yield. Proper nitrogen (N) management with adequate N rate and application timing is critical for optimizing grain yield and protein content. This 2‐yr experiment evaluated the effects of different N rates and application timings (fall, ...
- DOI:
- 10.1002/agj2.20836
- https://doi.org/10.1002/agj2.20836
- Author:
- Bijesh Maharjan, et al. ; Saurav Das; Bharat Sharma Acharya; Show all 3 Authors
- Source:
- Global ecology and conservation 2020 v.23 pp. e01116
- ISSN:
- 2351-9894
- Subject:
- agroecosystems; conventional tillage; cropland; grasslands; no-tillage; soil organic carbon; soil properties; soil quality; subsoil; sustainable agriculture
- Abstract:
- ... Growing calls and the need for sustainable agriculture have brought deserved attention to soil and to efforts towards improving or maintaining soil health. Numerous research and field experiments report soil health in terms of physicochemical and biological indicators, and identify different management practices that can improve it. However, the question remains how much of cultivated land has deg ...
- DOI:
- 10.1016/j.gecco.2020.e01116
- https://doi.org/10.1016/j.gecco.2020.e01116
- Author:
- Bijesh Maharjan, et al. ; Bharat Bhushan Vashisht; Surinder Kumar Jalota; Show all 3 Authors
- Source:
- Archiv für Acker- und Pflanzenbau und Bodenkunde 2019 v.65 no.13 pp. 1802-1819
- ISSN:
- 1476-3567
- Subject:
- Triticum aestivum; climate change; evapotranspiration; field experimentation; grain yield; irrigation scheduling; planting date; temperature; water use efficiency; wheat
- Abstract:
- ... Field experiments for six seasons (2008–2013) for present time slice (PTS; 2008–2013) and simulation studies for mid-century (MC; 2021–2050) were carried out to assess different planting dates, varieties and irrigation schedules in addressing the impact of climate change on grain yield and water use efficiency (WUE) in bread wheat (Triticum aestivum L.). During field experimentation, WUE (averaged ...
- DOI:
- 10.1080/03650340.2019.1578957
- https://doi.org/10.1080/03650340.2019.1578957
- Author:
- Bijesh Maharjan, et al. ; Gary W. Hergert; Show all 2 Author
- Source:
- Agronomy journal 2019 v.111 no.2 pp. 917-923
- ISSN:
- 0002-1962
- Subject:
- Beta vulgaris; Phaseolus vulgaris; Zea mays; adverse effects; application rate; beef; beets; cattle; cattle manure; composted manure; corn; crop yield; dry beans; field experimentation; nitrogen; prices; sucrose; sugar beet; urea; Nebraska
- Abstract:
- ... CORE IDEAS: Composted cattle manure has no detrimental effect on sugar beet root yield or sugar quality. Composted cattle manure is a potential nitrogen source for sugar beet production Besides a proper N rate, crop stand, and previous crop are also important to maximize beet yield and quality. Nitrogen management is key to achieving profitable sugar beet (Beta vulgaris L.) yield and quality. When ...
- DOI:
- 10.2134/agronj2018.09.0567
- https://doi.org/10.2134/agronj2018.09.0567
- Author:
- Bijesh Maharjan, et al. ; Maysoon M. Mikha; Gary W. Hergert; Xin Qiao; Show all 4 Authors
- Source:
- Agronomy journal 2020 v.112 no.5 pp. 4395-4406
- ISSN:
- 0002-1962
- Subject:
- Beta vulgaris; Phaseolus vulgaris; Zea mays; agronomy; biomass production; chemical concentration; corn; crop rotation; crop yield; dry beans; no-tillage; particulate organic matter; soil erosion; soil organic carbon; spring; sugar beet; Nebraska
- Abstract:
- ... Crop rotation in combination with tillage can improve productivity, enhance economical return, and reduce soil erosion. The objective of this study was to evaluate the impact of moldboard plow (MP), strip tillage (ST), no‐tillage (NT), and crop rotations on: (1) crop yield; (2) soil chemical properties; and (3) particulate organic matter (POM). The study was initiated in 2007 at the University of ...
- Handle:
- 10113/7019794
- DOI:
- 10.1002/agj2.20281
- https://doi.org/10.1002/agj2.20281
- Author:
- Bijesh Maharjan, et al. ; Humberto Blanco‐Canqui; Michael Kaiser; Gary W. Hergert; Cody F. Creech; Rex Nielsen; Amanda C. Easterly; Nevin C. Lawrence; Show all 8 Authors
- Source:
- Journal of environmental quality 2020 v.49 no.5 pp. 1251-1263
- ISSN:
- 0047-2425
- Subject:
- Beta vulgaris; aggregate stability; carbon; coal; combustion; environmental quality; no-tillage; soil carbon; soil depth; soil penetration resistance; sugar beet; sulfates
- Abstract:
- ... Restoring soil carbon (C) lost due to intensive farming is a long‐term endeavor under current conservation management practices. Application of coal combustion residue (293 g C kg⁻¹) from a sugar beet (Beta vulgaris L.) processing factory, hereafter referred to as char, could rapidly restore soil C and productivity in degraded croplands, but data on this potential strategy are unavailable. We asse ...
- DOI:
- 10.1002/jeq2.20111
- https://doi.org/10.1002/jeq2.20111
- Author:
- Bijesh Maharjan, et al. ; Dinesh Panday; Maysoon M. Mikha; Harold P. Collins; Virginia L. Jin; Michael Kaiser; Jennifer Cooper; Arindam Malakar; Show all 8 Authors
- Source:
- Journal of environmental quality 2020 v.49 no.2 pp. 256-267
- ISSN:
- 0047-2425
- Subject:
- ammonia; coal; combustion; environmental quality; nitrogen fertilizers; nitrous oxide; sandy loam soils; soil amendments; sugar industry; urea ammonium nitrate; volatilization
- Abstract:
- ... Fertilizer N losses from agricultural systems have economic and environmental implications. Soil amendment with high C materials, such as coal char, may mitigate N losses. Char, a coal combustion residue, obtained from a sugar factory in Scottsbluff, NE, contained 29% C by weight. A 30‐d laboratory study was conducted to evaluate the effects of char addition on N losses via nitrous oxide (N₂O) emi ...
- DOI:
- 10.1002/jeq2.20023
- https://doi.org/10.1002/jeq2.20023
- Author:
- Bijesh Maharjan, et al. ; Richard B. Ferguson; Glen P. Slater; Show all 3 Authors
- Source:
- Agronomy journal 2017 v.109 no.6 pp. 2957-2965
- ISSN:
- 0002-1962
- Subject:
- Zea mays; agronomy; corn; field experimentation; grain yield; irrigation; loamy sand soils; nitrapyrin; nitrogen; polymer-coated urea; total nitrogen; weather; Nebraska
- Abstract:
- ... CORE IDEAS: Polymer coated N fertilizer was effective in improving crop yields. Chemical inhibitors used in the study was not effective in reducing environmental N losses. Varieties of available different chemical inhibitors may act differently and need to be compared and contrasted. Nitrogen fertilizer modifications such as coating or chemical additives are designed to either slow or inhibit N tr ...
- DOI:
- 10.2134/agronj2017.04.0209
- https://doi.org/10.2134/agronj2017.04.0209
- Author:
- Bijesh Maharjan, et al. ; Richard B. Ferguson; Glen P. Slater; Show all 3 Authors
- Source:
- Agronomy journal 2016 v.108 no.2 pp. 509-518
- ISSN:
- 0002-1962
- Subject:
- Zea mays; algorithms; chlorophyll; coarse-textured soils; corn; developmental stages; grain yield; leaves; polymer-coated urea; soil texture; urea ammonium nitrate
- Abstract:
- ... Increasing economic and environmental concerns in corn (Zea mays L.) production have prompted the need for improved N management. In this study, effects of two N sources [urea-ammonium-nitrate (UAN) and polymer-coated urea (PCU)] on corn response were evaluated at different N rates over three site-years. An additional N treatment of split-applied UAN (UAN-SP) based on the University of Nebraska-Li ...
- DOI:
- 10.2134/agronj2015.0356
- https://doi.org/10.2134/agronj2015.0356
- Author:
- Bijesh Maharjan, et al. ; Rodney T. Venterea; Show all 2 Author
- Source:
- Journal of environmental quality 2014 v.43 no.5 pp. 1527-1535
- ISSN:
- 0047-2425
- Subject:
- Zea mays; anhydrous ammonia; clay; clay soils; climatic factors; conventional tillage; crop yield; emissions; equipment; field experimentation; growing season; long term experiments; nitrogen fertilizers; nitrous oxide; no-tillage; reduced tillage; silt; silt loam soils; soil water content; Minnesota
- Abstract:
- ... Anhydrous ammonia (AA) is a major fertilizer source in North America that can promote greater emissions of nitrous oxide (NO) than other nitrogen (N) fertilizers. Previous studies found that injection of AA at a shallow depth (0.1 m) decreased NO in a rainfed clay loam but increased NO in an irrigated loamy sand compared with the standard injection depth of 0.2 m. The objective of this study was t ...
- Handle:
- 10113/59591
- DOI:
- 10.2134/jeq2014.07.0292
- https://doi.org/10.2134/jeq2014.07.0292
- Author:
- Bijesh Maharjan, et al. ; Carl J. Rosen; John A. Lamb; Rodney T. Venterea; Show all 4 Authors
- Source:
- Agronomy journal 2016 v.108 no.5 pp. 2089-2098
- ISSN:
- 0002-1962
- Subject:
- Zea mays; agronomy; corn; databases; grain yield; loamy sand soils; nitrate nitrogen; nitrification; nitrogen; nutrient use efficiency; polymer-coated urea; urea; urease; water stress
- Abstract:
- ... Characterizing corn (Zea mays L.) grain yield (GY) response to N is critical for maximizing profits, increasing N use efficiency and minimizing environmental impacts. Although a large database of GY response to N exists for highly productive soils, few data exist for less productive soils. While changes in precipitation are expected in the future, few studies have compared GY response to varying N ...
- DOI:
- 10.2134/agronj2016.01.0006
- https://doi.org/10.2134/agronj2016.01.0006
- Author:
- Bijesh Maharjan, et al. ; Rodney T. Venterea; Show all 2 Author
- Source:
- Soil biology & biochemistry 2013 v.66 pp. 229-238
- ISSN:
- 0038-0717
- Subject:
- corn; fertilizer application; gas emissions; growing season; nitrates; nitrites; nitrogen fertilizers; nitrous oxide; nutrient availability; soil nutrient dynamics; urea; wet environmental conditions
- Abstract:
- ... It is typically assumed that the dependence of nitrous oxide (N2O) emissions on soil nitrogen (N) availability is best quantified in terms of ammonium (NH4+) and/or nitrate (NO3−) concentrations. In contrast, nitrite (NO2−) is seldom measured separately from NO3− despite its role as a central substrate in N2O production. We examined the effects of three N fertilizer sources and two placement metho ...
- Handle:
- 10113/57515
- DOI:
- 10.1016/j.soilbio.2013.07.015
- https://doi.org/10.1016/j.soilbio.2013.07.015
- Author:
- Bijesh Maharjan, et al. ; Rodney T. Venterea; Carl Rosen; Show all 3 Authors
- Source:
- Agronomy journal 2014 v.106 no.2 pp. 703-714
- ISSN:
- 0002-1962
- Subject:
- corn; emissions; grain yield; growing season; irrigation management; leaching; nitrates; nitrification inhibitors; nitrogen; nitrous oxide; nutrient management; nutrient use efficiency; sand; sandy soils; slow-release fertilizers; soil-atmosphere interactions; split application; urea; urea fertilizers; urease; Minnesota
- Abstract:
- ... Irrigation and N fertilizer management are important factors affecting crop yield, N fertilizer recovery efficiency, and N losses as nitrous oxide (N₂O) and nitrate (NO₃–⁾. Split application of conventional urea (split-U) and/or one-time application of products designed to perform as enhanced-efficiency N fertilizers may mitigate N losses. The objective of this study was to compare the effects of ...
- Handle:
- 10113/59593
- DOI:
- 10.2134/agronj2013.0179
- https://doi.org/10.2134/agronj2013.0179
- Author:
- Bijesh Maharjan, et al. ; Xianlong Peng; Cailian Yu; Anyu Su; Virginia Jin; Richard B. Ferguson; Show all 6 Authors
- Source:
- Agronomy journal 2015 v.107 no.3 pp. 871-879
- ISSN:
- 0002-1962
- Subject:
- Zea mays; agronomy; ammonia; coarse-textured soils; composite polymers; corn; fertilizer application; irrigation; nitrapyrin; nitrification inhibitors; nitrogen; nitrogen fertilizers; nutrient use efficiency; rain; urea; urea ammonium nitrate; urease; volatilization
- Abstract:
- ... In a series of field studies, differing rainfall patterns within the first month after N fertilizer application to a coarse-textured soil significantly affected yields and N-use efficiency of irrigated corn (Zea mays L.), and responses varied with N source. A laboratory study was conducted to evaluate effects of N source with precipitation following N application to a coarse-textured soil. Nitroge ...
- DOI:
- 10.2134/agronj14.0537
- https://doi.org/10.2134/agronj14.0537