Integrative impacts of rotational tillage on wheat yield and dry matter accumulation under corn-wheat cropping system
文献类型: 外文期刊
第一作者: Latifmanesh, Hojatollah
作者: Latifmanesh, Hojatollah;Deng, Aixing;Nawaz, Muhammad Mohsin;Song, Zhenwei;Zhang, Jun;Zheng, Chengyan;Zhang, Weijian;Li, Liang;Chen, Zongjin;Zheng, Yuntan;Wang, Pei
作者机构:
关键词: Dry matter accumulation; Dry matter translocation; Grain yield; Soil management; Rotational tillage
期刊名称:SOIL & TILLAGE RESEARCH ( 影响因子:5.374; 五年影响因子:6.368 )
ISSN: 0167-1987
年卷期: 2018 年 184 卷
页码:
收录情况: SCI
摘要: Significant efforts have been made on the assessment of tillage impacts on crop growth during the current season; however, few studies have quantified the impacts on the succeeding crop growth under multiple cropping systems. Based on a multiple-year field experiment under corn-wheat cropping system in North China Plain, therefore, we examined the integrative impacts of annual rotational tillage on wheat growth and soil properties. The annual rotational tillage treatments consisted of two tillage regimes (i.e. N: no-tillage; and SR: sub-soiling with rotary tillage) in the corn season followed by three tillage practices (i.e. sTR: strip rotary tillage; R: rotary tillage; and SR: sub-soiling with rotary tillage) in the wheat season, respectively. The results showed that the N SR rotational tillage of N in the corn season and SR in the wheat season significantly reduced soil penetration resistance and promoted soil water usage of 60-100 cm soil layers during wheat season. Meanwhile, soil NO3--N concentration in the depth of 40-140 cm was significantly lower under the N-SR than other tillage practices except for the N-R (P < 0.01). Average results of two-year dry matter accumulation and translocation showed that N-SR stimulated wheat biomass production and promoted the contribution of post-anthesis dry matter to the grain (P < 0.01). Consequently, wheat yield was the highest under the N-SR (P < 0.01). Our findings indicate that the annual rotational tillage of no-tillage in the corn season and sub-soiling with rotary tillage in the wheat season can promote wheat growth through enhancing deep soil water and N uptake.
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