Effects of green manure incorporation combined with nitrogen fertilizer reduction on wheat yield and nitrogen utilization in oasis irrigated area

Aiming at the problems of yield increase constrained and low fertilizer efficiency, the effect of green manure incorporation and nitrogen application on wheat yield and nitrogen utilization were investigated and the field experiment was conducted in Hexi oasis irrigated area in 2021 and 2022. Compar...

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Bibliographic Details
Published inZuo wu xue bao Vol. 49; no. 11; p. 3131
Main Authors Chai, Jian, Yu, Ai-Zhong, Li, Yue, Wang, Yu-Long, Wang, Feng, Wang, Peng-Fei, Lyu, Han-Qiang, Yang, Xue-Hui, Shang, Yong-Pan
Format Journal Article
LanguageChinese
Published Beijing Chinese Academy of Agricultural Sciences (CAAS) 01.01.2023
Subjects
Accumulation
Crop yield
Efficiency
Fertilizer use reduction
Fertilizers
Grain
Harvesting
Incorporation
Manures
Nitrogen
Productivity
Reduction
Translocation
Utilization
Wheat
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Summary:Aiming at the problems of yield increase constrained and low fertilizer efficiency, the effect of green manure incorporation and nitrogen application on wheat yield and nitrogen utilization were investigated and the field experiment was conducted in Hexi oasis irrigated area in 2021 and 2022. Compared with the control of traditional nitrogen application mode（G0N1）, setting the following treatments include green manure incorporation at 7500 kg hm-2（G1）, 15,000 kg hm-2（G2）, 22,500 kg hm-2（G3）,and 30,000 kg hm-2（G4）, and nitrogen fertilizer reduction at 153 kg hm-2（N2）, and 126 kg hm-2（N3）, their combined application with each other as G1N2, G2N2, G3N2, G4N2, G1N3, G2N3, G3N3, G4N3, and the combined effects on nitrogen absorption and accumulation and grain yield of wheat were analyzed. The results showed that green manure incorporation at 30,000 kg hm-2combined with chemical nitrogen fertilizer reduction by 15%（G4N2） can effectively improve crop yield and promote nitrogen use efficiency at the same time. Compare
ISSN:0496-3490