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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (30): 87-93.doi: 10.11924/j.issn.1000-6850.casb2022-0897

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Effects of Straw Returning on Soil Ecology and Crop Growth and Development

GAO Jun1,2(), WANG Huiquan1,2, GU Dongxiang2, ZHANG Simei2, ZHANG Chuanhui2(), GU Kejun2()   

  1. 1 School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013
    2 Jiangsu Academy of Agricultural Sciences, Nanjing 210014
  • Received:2022-10-27 Revised:2023-01-13 Online:2023-10-25 Published:2023-10-19

Abstract:

Crop straw is rich in nutrients and has high utilization value. As an efficient and low-cost way to utilize straw resources, straw returning plays a crucial role in maintaining soil fertility cycle and sustainable agricultural development. In this paper, the effects of straw returning on soil temperature and humidity, soil physical and chemical properties, soil enzyme activity, crop root system and crop above ground were reviewed, the mechanism of the effects of straw returning was analyzed, and the negative effects of straw returning on crop growth pointed out. Based on this, some key research directions in the future were put forward, such as establishing an optimization model for straw returning, strengthening the research on reducing obstacles of straw returning, and developing new disposable special fertilizers for rice and wheat straw returning.

Key words: straw returning, soil ecology, quality, yield