Effects of Agronomic Measures on Decomposition Characteristics of Wheat and Maize Straw in China
文献类型： 外文期刊
作者： Min, Xinyue 1 ; Song, Degang 1 ; Ma, Maoting 1 ; Li, Hongwei 3 ; Li, Shunjiang 1 ; Zou, Guoyuan 1 ; Du, Lianfeng 1 ; Liu, Jing 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr Resources & Environm, Beijing 100097, Peoples R China
2.Beijing Univ Agr, Coll Biosci & Resources Environm, Beijing 102206, Peoples R China
3.Daxing Agr Serv Ctr, Beijing 102600, Peoples R China
关键词： straw decomposition rate; straw return; wheat-maize cropping rotation; straw burial depth; tillage methods
期刊名称：SUSTAINABILITY （ 影响因子：3.889； 五年影响因子：4.089 ）
ISSN：
年卷期： 2022 年 14 卷 19 期
页码：
收录情况： SCI
摘要： The utilization of crop straw resources has been highly emphasized by governments and academia in recent decades. The growing importance of straw decomposition in the wheat-maize rotation system and the remarkable diversity of accumulated information on this topic inspired us to quantitatively explore variations in the outcomes of individual studies. We conducted a data analysis of 46 experimental studies reporting the effects of agronomic measures on the straw decomposition rates of wheat (14 studies) and maize (38 studies). Statistical results showed that maize straw crushed and buried in soil with turn-over or rotary tillage can significantly increase straw decomposition rates. Further, with the increase in nitrogen input and straw burial depth in the soil, the maize straw decomposition rate increased significantly, while the amount of straw return showed the opposite trend. Among all agronomic measures in this research, burial depth has demonstrated a significant positive effect on the wheat straw decomposition rate. The random forest analysis identified decomposition time as the most important predictor of straw decomposition rates for wheat and maize. In addition, some agronomic measures and straw decomposition time jointly affect the decomposition rate of straw. In general, agronomic measures are effective factors in controlling straw decomposition in a wheat-maize rotation system.
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