干旱区生态环境知识资源中心(Arid): Nitrogen reduction by 20 % with green manure retention reduces soil evaporation, promotes maize transpiration and improves water productivity in arid areas

Arid

DOI	10.1016/j.fcr.2024.109488
	Nitrogen reduction by 20 % with green manure retention reduces soil evaporation, promotes maize transpiration and improves water productivity in arid areas
	Wang, Pengfei; Yu, Aizhong; Wang, Feng; Wang, Yulong; Lyu, Hanqiang; Shang, Yongpan; Yang, Xuehui; Liu, Yalong; Yin, Bo; Zhang, Dongling; Chai, Qiang
通讯作者	Yu, AZ
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2024
卷号	315
英文摘要	Context: The contradiction between high agricultural yields and water resource shortages is becoming increasingly serious. Reducing nitrogen appropriately with green manure retention can ensure high agricultural yields, but it remains unclear whether it can optimize crop water consumption characteristics and improve water productivity (WPc). Objective: This study aims to investigate the effect of green manure retention combined with nitrogen reduction on water use characteristics of maize and its potential mechanisms. Methods: A field experiment was conducted at Wuwei Oasis Agricultural Experimental Station in China from 2020 to 2022, with five treatments: (i) traditional nitrogen application with green manure retention (N100), (ii) nitrogen reduction by 10 % with green manure retention (N90), (iii) nitrogen reduction by 20 % with green manure retention (N80), (iv) nitrogen reduction by 30 % with green manure retention (N70), and (v) nitrogen reduction by 40 % with green manure retention (N60). Results: The results showed that compared with the N100 treatment, 0-50 cm maize root biomass (RB), biomass accumulation (BA), and canopy cover (CC) were not significantly reduced in the N80 treatment. This model ensured a stable grain yield (GY) and improved 0-50 cm soil water storage (SWS) by 7.1-13.1 %. It effectively suppressed soil evaporation (E), promoted maize transpiration (T), reduced maize evapotranspiration (ET) by 4.8 %, and increased WPc by 1.8-26.6 %. Structural equation modeling (SEM) suggests that RB was the most important factor for improving WPc. In addition, this system ensures that economic benefits did not decrease. Conclusion: It can be seen that nitrogen reduction by 20 % with green manure retention is a reasonable nitrogen fertilizer management system to alleviate the contradiction between high maize yield and water resource shortages in the region. Implications: The results of this study provide valuable insights into alleviating the contradiction between agricultural production and regional water resource scarcity.
英文关键词	Nitrogen reduction by 20 % Green manure Root biomass Evapotranspiration Water productivity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001265925200001
WOS关键词	USE EFFICIENCY ; CROP COEFFICIENT ; LOESS PLATEAU ; WINTER-WHEAT ; COVER CROPS ; BARE SOIL ; EVAPOTRANSPIRATION ; YIELD ; FERTILIZATION ; CULTIVATION
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403731
推荐引用方式 GB/T 7714	Wang, Pengfei,Yu, Aizhong,Wang, Feng,et al. Nitrogen reduction by 20 % with green manure retention reduces soil evaporation, promotes maize transpiration and improves water productivity in arid areas[J],2024,315.
APA	Wang, Pengfei.,Yu, Aizhong.,Wang, Feng.,Wang, Yulong.,Lyu, Hanqiang.,...&Chai, Qiang.(2024).Nitrogen reduction by 20 % with green manure retention reduces soil evaporation, promotes maize transpiration and improves water productivity in arid areas.FIELD CROPS RESEARCH,315.
MLA	Wang, Pengfei,et al."Nitrogen reduction by 20 % with green manure retention reduces soil evaporation, promotes maize transpiration and improves water productivity in arid areas".FIELD CROPS RESEARCH 315(2024).