Disadvantages of sowing methods on soil water content root distribution and yield of wheat (Triticum aestivum L.) in the Loess Plateau of South Shanxi, China
文献类型： 外文期刊
作者： Noor, Hafeez 1 ; Min, Sun 1 ; Bing, Lei 4 ; Gao, Zhi-Qiang 1 ;
作者机构： 1.Shanxi Agr Univ, Coll Agr, Taigu 030801, Shanxi, Peoples R China
2.Collaborat Innovat Ctr High Qual, Taigu 030801, Shanxi, Peoples R China
3.Shanxi Agr Univ, State Key Lab Sustainable Dryland Agr, Taiyuan 030031, Shanxi, Peoples R China
4.Xinjiang Acad Agr Sci, Inst Nucl Technol & Biotechnol, Urumqi 830091, Peoples R China
关键词： dryland wheat; root morphology; soil water content; water use efficiency
期刊名称：WATER SUPPLY （ 影响因子：1.768； 五年影响因子：1.778 ）
ISSN： 1606-9749
年卷期：
页码：
收录情况： SCI
摘要： Wheat (Triticum aestivum L.) is a staple crop worldwide and yield improvement since the green revolution was attributed to chemical nitrogen (N) fertilizer application. The field experiment was performed from 2016 to 2020 in the eastern part of Loess Plateau, China, to study the effect of two sowing practices were carried out before summer fallow i.e., Wide-space sowing (WS) and drill sowing (DS). The results indicated the soil water content, root length surface density (RLSD), at anthesis by drought was 44% under WS and 29% with DS, while the reduction in above-ground dry weight was 67% under WS and 56% under DS. More soil water was depleted from the deep soil layer (80-100 cm depth) than that in the shallow layer (20-60 cm depth. The average contribution rates of soil water content at sowing to grain yield under DS were 23%-25%. Thus, drill sowing in summer fallow should be adopted for high water storage and yield stability.
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