干旱区生态环境知识资源中心(Arid): Film-mulched drip irrigation achieves high maize yield and low N losses in semi-arid areas of northeastern China

Arid

DOI	10.1016/j.eja.2023.126819
	Film-mulched drip irrigation achieves high maize yield and low N losses in semi-arid areas of northeastern China
	Hou, Yunpeng; Xu, Xinpeng; Kong, Lili; Zhang, Yitao; Zhang, Lei; Wang, Lichun
通讯作者	Wang, LC
来源期刊	EUROPEAN JOURNAL OF AGRONOMY
ISSN	1161-0301
EISSN	1873-7331
出版年	2023
卷号	146
英文摘要	Traditional flood irrigation (FI) and excessive nitrogen (N) fertilizer application are the main causes of unrealized yield potential and low water and N use efficiency (NUE) of maize in semi-arid regions of northeast China. The yield gap, NUE, and N losses were adopted to quantify the yield potential and optimal N fertilizer rate of maize under film-mulched drip irrigation (MDI), and different N fertilizer levels (0, 70, 140, 210, 280, and 350 kg N ha(-1), denoted as N0, N70, N140, N210, N280, and N350, respectively) were applied under MDI and FI conditions from 2018 to 2020. The maize yield first increased and then decreased with increasing N fertilizer in both MDI and FI, but the highest yield was 23.5% higher in MDI (210 kg N ha(-1)) compared to that in FI (280 kg N ha(-1)). Compared with FI, MDI significantly increased the proportion of N accumulation and its contribution to grain N at the post-silking stage, and improved water productivity and NUE at the same N rate. Under the conditions of obtaining the highest yield treatment (N210 under MDI and N280 under FI), MDI increased N recovery efficiency (REN), agronomic efficiency (AEN), partial factor productivity (PFPN), water productivity, and irrigation water productivity by 29.2% points, 16.2 kg kg(-1), 22.3 kg kg(-1), 1.3 kg m(-3), and 4.4 kg m(-3), respectively. In addition, MDI significantly reduced NO3-N leaching in the 60-200 cm soil layer and apparent N loss, while NO3-N content in the 0-60 cm layer increased over FI. The range of N fertilizer required to obtain high maize yield under MDI and FI were 199-220 and 236-260 kg ha(-1), respectively, by simulating the relationship between the N fertilize rate and maize yield, apparent N loss, and REN. Overall, MDI resulted in a 24.3% higher maize yield, 27.4% points higher REN, 15.7% lower N fertilizer application, and 45.3% lower N loss compared to FI. Therefore, the N fertilizer application strategy of MDI in this study could achieve higher maize yield, water productivity, and NUE, and reduce the risk of soil NO3-N leaching in continuous maize cropping systems. The results of this study can provide a scientific basis for N fertilizer management under MDI in the semi-arid region of northeastern China.
英文关键词	Water and nitrogen management Film -mulched drip irrigation Nitrogen loss Nitrogen use efficiency
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000971344100001
WOS关键词	WATER-USE EFFICIENCY ; NITROGEN USE EFFICIENCIES ; WINTER-WHEAT ; GRAIN-YIELD ; FERTIGATION ; SYSTEM ; PRODUCTIVITY ; MANAGEMENT ; BALANCE ; GROWTH
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/2XILL650/396320
推荐引用方式 GB/T 7714	Hou, Yunpeng,Xu, Xinpeng,Kong, Lili,et al. Film-mulched drip irrigation achieves high maize yield and low N losses in semi-arid areas of northeastern China[J],2023,146.
APA	Hou, Yunpeng,Xu, Xinpeng,Kong, Lili,Zhang, Yitao,Zhang, Lei,&Wang, Lichun.(2023).Film-mulched drip irrigation achieves high maize yield and low N losses in semi-arid areas of northeastern China.EUROPEAN JOURNAL OF AGRONOMY,146.
MLA	Hou, Yunpeng,et al."Film-mulched drip irrigation achieves high maize yield and low N losses in semi-arid areas of northeastern China".EUROPEAN JOURNAL OF AGRONOMY 146(2023).