Affiliation:
1. Key Laboratory of Fertilization from Agricultural Wastes, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
2. College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
Abstract
This study aimed to assess the influences of short-term straw return combined with nitrogen (N) fertilizer on crop yield, soil properties, the bacterial community, and soil nitrogen cycling gene abundance in a rice–rapeseed planting system. A two-year field experiment was conducted in a paddy field from 2019 to 2021. There were four treatments in the experiment: −N−S, no N applied with no straw return; −N+S, no N applied with straw return; +N−S, N applied with no straw return; and +N+S, N applied with straw return. The results showed that short-term straw return combined with N fertilizer could increase crop yield and N use efficiency. N fertilizer application had a positive effect on Gemmatimonadota and Desulfobacterota abundance. Straw returning had a positive effect on Desulfobacterota and Proteobacteria abundance. N fertilization significantly increased the abundance of amoA-AOA, amoA-AOB, and nxrB in agricultural soils. Straw return and N fertilization were not conducive to denitrification. We conclude that short-term straw return combined with N fertilizer in rice-growing areas not only increase crop yield and improve crop N uptake but also increase SOM, total N, and NH4+ and improve the soil microbial activity and N use efficiency.
Funder
National Key Research and Development Program of China
Smart Fertilization Project, the Key Research Development Program of Hubei Province
Outstanding Talents Cultivation Programs of Hubei Academy of Agricultural Sciences
Reference58 articles.
1. Management of cereal crop residues for sustainable rice-wheat production system in the Indo-Gangetic plains of India;Singh;Proc. Natl. Acad. Sci. USA,2014
2. How does crop residue removal affect soil organic carbon and yield? A hierarchical analysis of management and environmental factors;Raffa;Biomass Bioenergy,2015
3. Li, J., Gan, G., Chen, X., and Zou, J. (2021). Effects of long-term straw management and potassium fertilization on crop yield, soil properties, and microbial community in a rice-oilseed rape rotation. Agriculture, 11.
4. Crop residue incorporation combined with potassium fertilizer increased cotton canopy apparent photosynthesis and seed cotton yield in barley-cotton rotation system;Lv;Arch. Agron. Soil Sci.,2021
5. Seasonal temporal characteristics of in situ straw decomposition in different types and returning methods;Wang;J. Soil Sci. Plant Nutr.,2022
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献