Effects of maize residue return rate on nitrogen transformations and gaseous losses in an arable soil

Jie Li, Hong Yang, Feng Zhou, Xiaochen Zhang, Jiafa Luo, Yan Li, Stuart Lindsey, Yuanliang Shi, Hongbo He and Xudong Zhang

Agricultural Water Management, 2019, vol. 211, issue C, 132-141

Abstract: Residue return in combination with synthetic nitrogen (N) fertilizer is increasingly being considered to be beneficial to soil fertility and crop yield. In most studies, however, attention has mainly been paid to the way that significant changes in the soil N mineralization process affect the soil N cycle, while the effect of different residue return amounts on ammonia (NH3) volatilization and nitrous oxide (N2O) emissions, potentially the most important components of N losses and environmental effects has, to a certain extent, been neglected, notably in north-eastern China. Therefore, a trial was set up in an Alfisol/arable soil during 2015–2016 to monitor annual NH3 volatilization and N2O emission dynamics from a fertilized maize field with residue return at different rates. Treatments included N fertilizer alone and N fertilizer in combination with either half or the full yield of the maize residue (5.8 × 103 or 11.6 × 103 kg ha−1, respectively) returned to the soil surface after harvest.

Keywords: Nitrous oxide; Ammonia volatilization; Crop residue; Arable soil (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:211:y:2019:i:c:p:132-141

DOI: 10.1016/j.agwat.2018.09.049

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