Nitrogen Release Dynamics and Decomposition of Buried and Surface Cover Crop Residues

  title={Nitrogen Release Dynamics and Decomposition of Buried and Surface Cover Crop Residues},
  author={Emad Jahanzad and Allen V. Barker and Masoud Hashemi and Touria El-Jaoual Eaton and Amir Sadeghpour and Sarah A. Weis},
  journal={Agronomy Journal},
Carbon and nitrogen release from cover crop residues and implications for cropping systems management
Cover cropping is an effective management practice for reducing nitrogen (N) losses to the environment from agriculture fields in the Upper Mississippi River Basin (UMRB). Cereal rye (CR; Secale
Nitrogen release from shoots and roots of crimson clover, hairy vetch, and red clover
The results in this study would help farmers optimize their choice in legume cover crops and termination times to better synchronize N release with crop uptake.
Residue Decomposition and Nutrient Release of Two Weed Species Mown at a Persimmon Orchard in Mid-May
Received: February 12, 2019 Revised: August 21, 2019 Accepted: August 26, 2019 ORCID Seong-Tae Choi The release of mineral nutrients from green manure residues
Corn Nitrogen Management Following Daikon Radish and Forage Oat Cover Crops
Soil Sci. Soc. Am. J. 83:181–189 doi:10.2136/sssaj2018.07.0269 Received 23 July 2018. Accepted 17 Oct. 2018. *Corresponding author ( © Soil Science Society of America. This is an
Nutrient Release during Residue Decomposition of Weeds Mown at Different Times in a Persimmon Orchard
Rate of decomposition and nutrient release of the residue subsequent to mowing weeds remain poorly understood in persimmon orchards of South Korea and the results indicated that time of supplemental fertilization should be adjusted depending on mowing times.
Effects of catch crops on silage maize (Zea mays L.): yield, nitrogen uptake efficiency and losses
Ryegrass may serve as beneficial CC in continuous maize cropping even in already optimized N management under the given environmental conditions, and rye significantly reduced nitrate leaching.
Composition and decomposition of rhizoma peanut (Arachis glabrata Benth.) belowground biomass
Roots and rhizomes can play an important role in nutrient cycling, however, few studies have investigated how their decomposition pattern is affected by defoliation and time of the year. This 2-year


Managing Cover Crops Profitably
Crop Cover Root Channels May Alleviate Soil Compaction Effects on Soybean Crop
Deep-rooted cover crops may help alleviate effects of soil compaction, especially in no-till systems. We evaluate compaction-alleviating ability of three Brassica cover crops and cereal rye (Secale
Winter cover crop effects on soil organic carbon and carbohydrate in soil
Winter cover crops may increase soil organic carbon (SOC) levels or reduce their rate of depletion. Selection of appropriate cover crops to increase SOC requires an adequate knowledge of the quality
Lignin and cellulose fractionation in decomposition studies using acid‐detergent fibre methods
Abstract Lignin methods based on an acid‐detergent fibre pre‐extraction were evaluated for grass, straw, heather and spruce litter. Quantification following oxidative attack to destroy the lignin by
Experiments at the University of Massachusetts Research Farm found that planting cover crops after corn-silage harvest could have a critical role in the recovery of residual N and N from fall-applied manure, which would otherwise be lost to the environment.
Synchrony between Legume Nitrogen Release and Corn Demand in the Upper Midwest
Soil tests indicated an increase in mineral N levels corresponding to legume N release, similar to those following an application of 179 kg ha -1 fertilizer N, occurring before the period of rapid N uptake by corn.