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- Author:
- Upendra M. Sainju, et al. ; Daniel Liptzin; William B. Stevens; Show all 3 Authors
- Source:
- Soil Science Society of America journal 2022 v.86 no.3 pp. 795-809
- ISSN:
- 0361-5995
- Subject:
- Hordeum vulgare; Pisum sativum; Triticum aestivum; arid lands; conventional tillage; labile carbon; mineralization; no-tillage; peas; principal component analysis; soil inorganic carbon; soil quality; spring wheat; Montana
- Abstract:
- ... Soil labile C fractions have been proposed as promising soil health indicators, but they have not been related to extensive soil properties and crop yields. We evaluated the relationships among soil organic carbon (SOC), labile C fractions, 62 soil physical, chemical, biological, and biochemical properties, and mean crop yields in two long‐term (14‐ and 36‐yr‐old) sites (Froid and Sidney, eastern ...
- DOI:
- 10.1002/saj2.20399
- https://doi.org/10.1002/saj2.20399
- Author:
- Upendra M. Sainju, et al. ; Daniel Liptzin; Rajan Ghimire; Sadikshya Dangi; Show all 4 Authors
- Source:
- Agronomy journal 2022 v.114 no.1 pp. 395-414
- ISSN:
- 0002-1962
- Subject:
- Hordeum vulgare; Pisum sativum; Triticum; agronomy; arid lands; crop yield; fallow; no-tillage; peas; soil inorganic carbon; soil organic matter; soil quality; spring wheat; total nitrogen; Great Plains region
- Abstract:
- ... Soil organic carbon (SOC) is an important indicator of soil health, but its analysis requires a two‐step process of measuring soil total carbon (STC) and inorganic carbon (SIC) in arid and semiarid regions. Determination of STC or soil total nitrogen (STN) for SOC can shorten the analytical process, which may be used for measuring soil health. We related STC, STN, SOC, and SIC to 62 soil propertie ...
- Handle:
- 10113/7709578
- DOI:
- 10.1002/agj2.20938
- https://doi.org/10.1002/agj2.20938
- Author:
- Upendra M. Sainju, et al. ; Shaohong Zhang; Jun Wang; Rajan Ghimire; Show all 4 Authors
- Source:
- Agronomy journal 2022 v.114 no.2 pp. 1361-1373
- ISSN:
- 0002-1962
- Subject:
- Glycine max; Sorghum bicolor subsp. drummondii; Triticum aestivum; agronomy; atmospheric precipitation; biomass; climatic factors; cover crops; evapotranspiration; grain yield; nitrogen; soil water; soil water storage; soybeans; summer; water stress; water use efficiency; winter wheat; China
- Abstract:
- ... Summer cover crops extract soil water and may affect succeeding winter wheat (Triticum aestivum L.) yield and water‐use efficiency (WUE). We examined the effect of summer cover crops and N fertilization rates on soil water storage at wheat planting (SWP) and harvest (SWH), winter wheat yield, evapotranspiration (ET), and WUE from 2017–2018 to 2019–2020 at Changwu and Chang'an in the Loess Plateau ...
- Handle:
- 10113/7736442
- DOI:
- 10.1002/agj2.21028
- https://doi.org/10.1002/agj2.21028
- Author:
- Upendra M. Sainju
- Source:
- Agronomy journal 2022 v.114 no.5 pp. 2796-2810
- ISSN:
- 0002-1962
- Subject:
- Hordeum vulgare; Pisum sativum; Triticum aestivum; agronomy; arid lands; barley; continuous cropping; costs and returns; crop rotation; ecosystems; farm income; farms; no-tillage; semiarid zones; soil; spring; spring wheat
- Abstract:
- ... Information on the effect of no‐till crop rotation on a broad range of soil properties and long‐term crop yields is needed to evaluate its benefits on ecosystem services compared with monocropping. The objective of this study was to examine the effects of no‐till crop rotation (barley [Hordeum vulgare L.]/spring wheat [Triticum aestivum L.]–pea [Pisum sativum L.]) and monocropping [continuous barl ...
- Handle:
- 10113/7929065
- DOI:
- 10.1002/agj2.21148
- https://doi.org/10.1002/agj2.21148
- Author:
- Upendra M. Sainju, et al. ; Rajan Ghimire; Sadikshya Dangi; Show all 3 Authors
- Source:
- Science of the total environment 2021 v.775 pp. 145902
- ISSN:
- 0048-9697
- Subject:
- Pisum sativum; Triticum aestivum; arid lands; carbon; carbon dioxide; climate change; crop rotation; environment; fertilizer rates; methane; nitrogen; semiarid zones; soil; soil carbon; spring; spring wheat; Great Plains region
- Abstract:
- ... Quantifying soil CO₂ and CH₄ emissions and C balance under dryland cropping systems in arid and semiarid regions is needed to understand their contributions to climate change. The objective of this study was to examine the effect of crop rotation and N fertilization rate on soil CO₂ and CH₄ fluxes and C balance under dryland farming from 2012 to 2016 in the northern Great Plains, USA. Treatments w ...
- DOI:
- 10.1016/j.scitotenv.2021.145902
- CHORUS:
- 10.1016/j.scitotenv.2021.145902
- https://doi.org/10.1016/j.scitotenv.2021.145902
6. Enzyme activities as soil health indicators in relation to soil characteristics and crop production
- Author:
- Upendra M. Sainju, et al. ; Daniel Liptzin; Sadikshya M. Dangi; Show all 3 Authors
- Source:
- Agrosystems, geosciences & environment 2022 v.5 no.3 pp. e20297
- ISSN:
- 2639-6696
- Subject:
- Hordeum vulgare; Pisum sativum; Triticum aestivum; arid lands; arylsulfatase; barley; crop yield; environment; fallow; no-tillage; peas; principal component analysis; soil; soil enzymes; soil quality; spring wheat; Great Plains region
- Abstract:
- ... Soil enzyme activities are known for early indicators of soil health but have not been related to most soil properties and crop yields. We examined the relationships among activities of four soil enzymes (β‐glucosidase [BG], N‐acetyl‐β‐glucosaminidase [NAG], arylsulfatase [AST], and phosphomonoesterase [PME]), 62 soil properties, and mean crop yields in two long‐term (14‐ and 36‐yr‐old) dryland fa ...
- DOI:
- 10.1002/agg2.20297
- https://doi.org/10.1002/agg2.20297
- Author:
- Upendra M. Sainju, et al. ; Daniel Liptzin; Sadikshya Dangi; Rajan Ghimire; Show all 4 Authors
- Source:
- Applied soil ecology 2021 v.168 pp. 104182
- ISSN:
- 0929-1393
- Subject:
- Hordeum vulgare; Pisum sativum; Triticum aestivum; aggregate stability; aluminum; barley; beta-N-acetylhexosaminidase; biological activity in soil; calcium; carbon dioxide; carbon dioxide production; continuous cropping; conventional tillage; cropping sequence; dryland farming; fallow; fertilizer rates; grain yield; macropores; magnesium; nitrate nitrogen; nitrogen fertilizers; no-tillage; peas; phospholipid fatty acids; phosphorus; soil carbon; soil microorganisms; soil quality; soil respiration; species abundance; split application; spring wheat; total nitrogen; volumetric water content; water stable soil aggregates; Montana
- Abstract:
- ... There is a need for including soil physical and biological properties along with chemical properties to accurately measure soil health and relate to crop yields. The objective of this study was to determine a suite of soil health indicators that were sensitive to cropping systems and N fertilization and relate to soil properties and dryland crop yield in a 14-yr-old cropping sequence and N fertili ...
- Handle:
- 10113/7480509
- DOI:
- 10.1016/j.apsoil.2021.104182
- https://doi.org/10.1016/j.apsoil.2021.104182
- Author:
- Upendra M. Sainju
- Source:
- Soil Science Society of America journal 2020 v.84 no.5 pp. 1393-1404
- ISSN:
- 0361-5995
- Subject:
- agroecosystems; carbon dioxide; carbon sequestration; crop residues; farms; greenhouse gases; soil; soil organic carbon; soil respiration
- Abstract:
- ... Agricultural practices contribute significant levels of greenhouse gas (GHG) emissions. Methods to measure net global warming potential (GWP) and greenhouse gas intensity (GHGI) that account for all sources and sinks of GHG emissions in agroecosystems are still evolving. Sources of GHGs include soil CO₂, N₂O, and CH₄ emissions and CO₂ emissions associated with farm operations, N fertilization, and ...
- DOI:
- 10.1002/saj2.20152
- https://doi.org/10.1002/saj2.20152
- Author:
- Upendra M. Sainju
- Source:
- Soil research 2021 v.60 no.4 pp. 399-411
- ISSN:
- 1838-675X
- Subject:
- Hordeum vulgare; Triticum aestivum; ammonium nitrogen; arid lands; barley; conventional tillage; crop yield; electrical conductivity; mineralization; nitrate nitrogen; no-tillage; phospholipid fatty acids; research; saturated hydraulic conductivity; shrinkage; soil erosion; soil pH; soil quality; spring wheat; Great Plains region; Montana
- Abstract:
- ... Context The no-till (NT) system is used to control soil erosion and nutrient losses, but extensive evaluation of NT on soil health and long-term crop yields compared to conventional till (CT) is needed to evaluate the overall benefit of NT. Aims The objective of this study was to compare NT and CT on soil health and long-term crop yields in two dryland farming sites in the northern Great Plains, U ...
- Handle:
- 10113/7709636
- DOI:
- 10.1071/SR21188
- https://doi.org/10.1071/SR21188
- Author:
- Upendra M. Sainju, et al. ; Jun Wang; Shaohong Zhang; Rajan Ghimire; Fazhu Zhao; Show all 5 Authors
- Source:
- Agricultural water management 2021 v.256 pp. 107085
- ISSN:
- 0378-3774
- Subject:
- atmospheric precipitation; climatic factors; cover crop termination; cover crops; crop residue management; crop residues; crop yield; evapotranspiration; fallow; meta-analysis; phytomass; soil quality; soil water storage; water use efficiency
- Abstract:
- ... Cover cropping is practiced to enhance soil health and sustain succeeding crop yield; however, the effect of cover crop on soil water storage, succeeding crop yield, and water-use efficiency (WUE) may not be consistent in all regions. A meta-analysis was carried out to evaluate the effect of cover crop on precipitation storage efficiency (PSE, the percent of precipitation that is stored in the soi ...
- Handle:
- 10113/7458678
- DOI:
- 10.1016/j.agwat.2021.107085
- https://doi.org/10.1016/j.agwat.2021.107085
- Author:
- Upendra M. Sainju, et al. ; Pramod Acharya; Rajan Ghimire; Youngkoo Cho; Vesh R. Thapa; Show all 5 Authors
- Source:
- Nutrient cycling in agroecosystems 2022 v.122 no.2 pp. 191-203
- ISSN:
- 1385-1314
- Subject:
- Avena sativa; Brassica napus; Hordeum vulgare; Pisum sativum; Raphanus sativus; Sorghum bicolor; Triticum aestivum; Vicia villosa; agroecosystems; barley; canola; carbon sequestration; cover crops; fallow; forage; grain yield; nitrogen; nitrogen content; oats; peas; radishes; soil organic carbon; soil organic nitrogen; soil profiles; soil quality; winter wheat
- Abstract:
- ... Cover crops are increasingly adopted to improve soil health in arid and semiarid regions, yet their effects on soil profile organic carbon (C) and nitrogen (N) and crop yield are inconsistent. We evaluated the cover crop effect on soil organic C (SOC) and N (SON) contents and water-filled pore space to a depth of 0.8 m and crop yield in a winter wheat (Triticum aestivum L.)–sorghum (Sorghum bicolo ...
- Handle:
- 10113/7705214
- DOI:
- 10.1007/s10705-022-10198-1
- https://doi.org/10.1007/s10705-022-10198-1
- Author:
- Upendra M. Sainju, et al. ; Jun Wang; Xin Fu; Rajan Ghimire; Yu Jia; Fazhu Zhao; Show all 6 Authors
- Source:
- Applied soil ecology 2021 v.166 pp. 103992
- ISSN:
- 0929-1393
- Subject:
- Bacteroidetes; Gemmatimonadetes; Nitrospirae; Planctomycetes; Triticum aestivum; bacterial communities; beta-glucosidase; community structure; continuous cropping; enzyme activity; fertilizer application; grain yield; long term experiments; manure amendments; manure spreading; nitrogen; nitrogen fertilizers; nitrogen-phosphorus fertilizers; phosphorus fertilizers; soil bacteria; soil carbon; soil enzymes; soil organic matter; soil quality; winter wheat; xylan 1,4-beta-xylosidase; China
- Abstract:
- ... Soil bacterial community structure, enzyme activities and their relationships to soil carbon and nitrogen in response to long-term fertilization remain poorly understood. Therefore, the objective of this study was to evaluate soil carbon and nitrogen fractions, enzyme activity, and bacterial community structure at 0–15, 15–30, and 30–60 cm depths after 34-yr of continuous application of manure and ...
- Handle:
- 10113/7324513
- DOI:
- 10.1016/j.apsoil.2021.103992
- https://doi.org/10.1016/j.apsoil.2021.103992
- Author:
- Upendra M. Sainju, et al. ; Sikiru Y. Alasinrin; Show all 2 Author
- Source:
- Agrosystems, geosciences & environment 2020 v.3 no.1 pp. e20019
- ISSN:
- 2639-6696
- Subject:
- Hordeum vulgare; Pisum sativum; Triticum aestivum; arid lands; barley; base saturation; cation exchange capacity; continuous cropping; conventional tillage; crop rotation; fallow; fertilizer rates; grain yield; long term experiments; nitrogen fertilizers; no-tillage; peas; soil depth; soil electrical conductivity; soil nutrients; soil organic matter; soil pH; soil quality; spring wheat; Great Plains region
- Abstract:
- ... Information is needed on the long‐term impact of cropping system and N fertilization on dryland soil health and crop yields. We studied the 13‐yr effect of cropping system and N fertilization rate on soil chemical properties at the 0‐ to 60‐cm depth and related them to annualized crop yield in the northern Great Plains. Cropping systems were conventional tillage barley (Hordeum vulgare L.)/spring ...
- Handle:
- 10113/6937393
- DOI:
- 10.1002/agg2.20019
- https://doi.org/10.1002/agg2.20019
- Author:
- Upendra M. Sainju, et al. ; Andrew W. Lenssen; Brett L. Allen; Jalal D. Jabro; William B. Stevens; Show all 5 Authors
- Source:
- Agricultural water management 2021 v.257 pp. 107149
- ISSN:
- 0378-3774
- Subject:
- Hordeum vulgare; Pisum sativum; Triticum aestivum; Zea mays; aboveground biomass; barley; conventional tillage; crop rotation; grain yield; legumes; management systems; nitrogen; no-tillage; soil water; soil water storage; spring; spring wheat; stubble; water management; Great Plains region
- Abstract:
- ... Diversified crop rotation and management strategies may affect crop water and N productivity. We studied the effect of tillage, crop rotation, and management system on pre-plant and postharvest soil water storage, annualized crop yield, water use, and water and N productivity from 2005 to 2010 in the northern Great Plains, USA. Tillage were conventional tillage and no-tillage; crop rotations were ...
- Handle:
- 10113/7496851
- DOI:
- 10.1016/j.agwat.2021.107149
- CHORUS:
- 10.1016/j.agwat.2021.107149
- https://doi.org/10.1016/j.agwat.2021.107149
- Author:
- Upendra M. Sainju, et al. ; Daniel Liptzin; Sadikshya M. Dangi; Show all 3 Authors
- Source:
- Soil Science Society of America journal 2021 v.85 no.5 pp. 1679-1697
- ISSN:
- 0361-5995
- Subject:
- Pisum sativum; Triticum; arid lands; carbon dioxide; crop yield; no-tillage; peas; soil quality; spring wheat; Montana
- Abstract:
- ... Carbon dioxide flush after rewetting of dried soils has been recommended as a promising soil health indicator, but it has not been related to most soil properties and crop yields. We evaluated the effect of cropping systems and N fertilization on CO₂ flushes at 1‐ (1dC) and 4‐d incubations (4dC) after rewetting of dried soils and related to 54 soil physical, chemical, and biological properties and ...
- Handle:
- 10113/7491689
- DOI:
- 10.1002/saj2.20288
- https://doi.org/10.1002/saj2.20288
- Author:
- Upendra M. Sainju, et al. ; Rajan Ghimire; Umakant Mishra; Sindhu Jagadamma; Show all 4 Authors
- Source:
- Nutrient cycling in agroecosystems 2020 v.116 no.3 pp. 381-395
- ISSN:
- 1385-1314
- Subject:
- Pisum sativum; Triticum aestivum; arid lands; crop rotation; emissions factor; fertilizer rates; grain yield; greenhouse gas emissions; nitrogen; nitrogen fertilizers; nitrous oxide; nitrous oxide production; nutrient use efficiency; snowmelt; spring wheat
- Abstract:
- ... Recent interests in improving agricultural production while minimizing environmental footprints emphasized the need for research on management strategies that reduce nitrous oxide (N₂O) emissions and increase nitrogen-use efficiency (NUE) of cropping systems. This study aimed to evaluate N₂O emissions, annualized crop grain yield, emission factor, and yield-scaled- and NUE-scaled N₂O emissions und ...
- DOI:
- 10.1007/s10705-020-10046-0
- https://doi.org/10.1007/s10705-020-10046-0
- Author:
- Upendra M. Sainju, et al. ; Patrick G. Hatfield; Devon L. Ragen; Show all 3 Authors
- Source:
- Soil Science Society of America journal 2021 v.85 no.5 pp. 1349-1361
- ISSN:
- 0361-5995
- Subject:
- Carthamus tinctorius; Lens culinaris; Melilotus officinalis; Ovis aries; Triticum aestivum; autumn; carbon dioxide; cover crops; crop production; greenhouse gases; lentils; sheep; snowmelt; tillage; winter wheat
- Abstract:
- ... Information on greenhouse gas (GHG) emissions in organic crop production using sheep (Ovis aries L.) grazing to control weeds is lacking. We examined GHG emissions from May 2013 to April 2016 under wheat (Triticum aestivum L.)‐based sequences in organic and conventional crop productions in the northern Great Plains. Organic crop production included sheep grazing to control weeds without N applicat ...
- DOI:
- 10.1002/saj2.20209
- https://doi.org/10.1002/saj2.20209
- Author:
- Upendra M. Sainju, et al. ; Abdelaziz Nilahyane; Rajan Ghimire; Vesh R. Thapa; Show all 4 Authors
- Source:
- Agrosystems, geosciences & environment 2020 v.3 no.1 pp. e20012
- ISSN:
- 2639-6696
- Subject:
- Avena sativa; Brassica napus var. napus; Hordeum vulgare; Pisum sativum; Raphanus sativus; Vicia villosa; barley; canola; carbon dioxide; carbon dioxide production; cover crops; fallow; greenhouse gas emissions; oats; peas; radishes; semiarid soils; semiarid zones; soil organic carbon; soil respiration; New Mexico
- Abstract:
- ... Cover crops improve soil health and environmental quality by enhancing soil organic carbon (SOC) sequestration and nutrient cycling in agroecosystems. This study evaluated the effect of cover crops on soil CO₂–C emissions, temperature, and water content during cover crop growth from April to October, 2017 and 2018. Treatments included fallow, pea (Pisum sativum L.), oat (Avena sativa L.), canola ( ...
- Handle:
- 10113/6937382
- DOI:
- 10.1002/agg2.20012
- https://doi.org/10.1002/agg2.20012
- Author:
- Upendra M. Sainju, et al. ; Daniel Liptzin; Brett L. Allen; Sadikshya Rana‐Dangi; Show all 4 Authors
- Source:
- Agronomy journal 2021 v.113 no.4 pp. 3675-3687
- ISSN:
- 0002-1962
- Subject:
- Hordeum vulgare; Pisum sativum; Triticum aestivum; agronomy; autoclaving; biodiversity; bulk density; carbon dioxide; crop yield; ecosystems; environmental quality; multivariate analysis; no-tillage; soil aggregation; soil organic matter; soil quality; spring; spring wheat; Montana
- Abstract:
- ... Soil health indicators that link to ecosystem services, such as water and nutrient cycling, crop yield, environmental quality, and biodiversity, are needed. We measured 65 soil physical, chemical, and biological properties as potential soil health indicators from a 36‐yr‐old tillage and cropping system experiment and related these properties to crop yield in eastern Montana. Tillage and cropping s ...
- DOI:
- 10.1002/agj2.20673
- https://doi.org/10.1002/agj2.20673
- Author:
- Upendra M. Sainju, et al. ; Andrew W. Lenssen; Clain Jones; Kent McVay; Terry Angvick; Show all 5 Authors
- Source:
- Agronomy journal 2021 v.113 no.1 pp. 577-589
- ISSN:
- 0002-1962
- Subject:
- Triticum aestivum; agronomy; biomass production; fertilizer rates; forage; legumes; nitrogen; streams; urea; weeds; winter wheat
- Abstract:
- ... Spring‐seeded annual forages are well adapted to the Great Plains; however, the influence of application rate and method of N fertilization on winter wheat (WW) (Triticum aestivum L.) forage productivity is unknown. A field study was conducted in a factorial design for 3 yr to determine the influence of N application rate and method on water and N productivity of awnletted WW ‘Willow Creek’. Urea ...
- Handle:
- 10113/7709354
- DOI:
- 10.1002/agj2.20495
- https://doi.org/10.1002/agj2.20495