干旱区生态环境知识资源中心(Arid): Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau

Arid

DOI	10.1002/agj2.20105
	Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau
	Chen, Xiuwen; Zhao, Hubing; Liu, Jifei; Mao, Anran
通讯作者	Zhao, Hubing
来源期刊	AGRONOMY JOURNAL
ISSN	0002-1962
EISSN	1435-0645
出版年	2020
卷号	112 期号:2 页码:1391-1405
英文摘要	Winter wheat (Triticum aestivum L.) is one of the most important cereal crops in the world, and mulching is mostly practiced in the semi-arid region of Northwest China. We examined the effect of different mulching practices on soil N, plant N uptake, N use efficiency and yield of wheat with similar fertilizer rate. The experiment was conducted for 5 yr with four replicates. The five practices included: Control (CK), nitrogen fertilizer and no mulching (NM), nitrogen fertilizer plus plastic film mulching (PM), nitrogen fertilizer plus ridge mulching and furrow seeding (RM+FS), and nitrogen fertilizer plus straw mulching (SM). We found that yield and biomass of winter wheat were significantly affected by different mulching practices during the five growing seasons. Compared to the NM treatment, the PM, SM, and RM+FS treatments increased grain yield by 13, 9, and 4%, respectively, and biomass by 19, 13, and 10%, respectively. Compared to the NM, the RM+FS and PM treatments tended to decrease average grain, straw, and chaff N concentration, while straw mulching tended to increase average grain, straw, and chaff N concentration. Compared to the NM treatment, all mulching treatments consistently increased NUE, and straw mulching had the most significant effect. Nitrate-N in the NM was most likely to leach into deep layers, followed by the SM and the lowest nitrate-N leaching risk was in the two plastic film mulching treatments. The PM could increase winter wheat yield and decrease the risk of nitrate-N leaching. Thus, PM performed better among the mulching practices.
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000543787300057
WOS关键词	WATER-USE EFFICIENCY ; ZEA-MAYS L. ; GRAIN-YIELD ; CROP YIELD ; SOIL NITRATE ; COVER CROPS ; STRAW MULCH ; MANAGEMENT-PRACTICES ; DURUM-WHEAT ; MAIZE
WOS类目	Agronomy
WOS研究方向	Agriculture
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319373
作者单位	Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xiuwen,Zhao, Hubing,Liu, Jifei,et al. Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau[J]. 西北农林科技大学,2020,112(2):1391-1405.
APA	Chen, Xiuwen,Zhao, Hubing,Liu, Jifei,&Mao, Anran.(2020).Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau.AGRONOMY JOURNAL,112(2),1391-1405.
MLA	Chen, Xiuwen,et al."Winter wheat nitrogen utilization under different mulching practices on the Loess Plateau".AGRONOMY JOURNAL 112.2(2020):1391-1405.