@article{LI:333605,
      recid = {333605},
      author = {LI ,Xiang and ZENG, Qiao and CAO ,Shanchao and MA ,Yueli  and ZHANG ,Yangli},
      title = {Effects of Method for Returning Straw to Field on Soil  Properties, Straw Decomposition and Nutrient Release},
      journal = {Asian Agricultural Research},
      address = {2022-05-20},
      number = {1812-2023-551},
      month = {May},
      year = {2022},
      abstract = { [Objectives] To alleviate the influence of meteorological  conditions on soil environment (temperature and water  content) and maintain high and stable grain yield.  [Methods] Taking Sunzhen Experimental Station of Weinan  Academy of Agricultural Sciences as the experimental base,  the effects of returning double-crop wheat and corn straw  to field (Twm), returning single-crop corn straw to field  (Tm), returning single-crop wheat straw to field (Tw) on  soil temperature, water content, straw decomposition rate  and nutrient release, soil organic matter and bulk density  were studied systematically. [Results] Twm treatment could  effectively alleviate the effects of meteorological  conditions on soil temperature and water content. The  decomposition rate of straw treated with Twm was 4.7%  higher than that of Tm treatment, 3.8% higher than that of  Tw treatment, 10.5% higher than that of Tm treatment, and  the decomposition rate of straw showed a trend of "first  fast, then slow and then fast". The release of nitrogen  from straw was basically similar to that of straw decay,  and the release of potassium and phosphorus increased at  first and then remained basically unchanged. The release  rate of potassium was the highest, followed by phosphorus  and nitrogen. The content of soil organic matter in Twm  treatment increased by 11.67% annually, an annual average  of 0.998 g/kg . The soil bulk density of Twm treatment  decreased by 0.058 g/cm3 annually, an annual average of  4.29% . The fundamental reason is that Twm treatment  provides conditions (temperature, water content, nutrition)  for microbial growth, reproduction, enzyme production and  biochemical reaction, and increases the exchange capacity  of soil and external water, heat, gas and fertilizer.  [Conclusions] The purpose of this paper is to help people  change their understanding of returning straw to field from  "quick harvest" to "fertilizer transformation".},
      url = {http://ageconsearch.umn.edu/record/333605},
      doi = {https://doi.org/10.22004/ag.econ.333605},
}