干旱区生态环境知识资源中心(Arid): Optimization of drip irrigation and fertilization regimes for high grain yield, crop water productivity and economic benefits of spring maize in Northwest China

Arid

DOI	10.1016/j.agwat.2019.105986
	Optimization of drip irrigation and fertilization regimes for high grain yield, crop water productivity and economic benefits of spring maize in Northwest China
	Zou, Haiyang 1; Fan, Junliang 1; Zhang, Fucang 1; Xiang, Youzhen 1; Wu, Lifeng 2; Yan, Shicheng 1
通讯作者	Fan, Junliang ; Zhang, Fucang
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2020
卷号	230
英文摘要	Spring maize is one of the major cereal crops in the arid and semi-arid regions of Northwest China, but limited water resources and low water/fertilizer use efficiency largely restrict the sustainable development of local agriculture. A two-year field experiment was conducted to explore the effects of water/fertilizer interaction on aboveground biomass, grain yield, crop water productivity (CWP), partial factor productivity (PFP) and economic benefits of spring maize. Particularly, the optimized combination of drip irrigation and fertilization regimes for high grain yield, CWP and economic benefits were attained by multiple regression analysis and likelihood estimation. The irrigation levels included I-60 (60 % ETc, ETc is the crop evapotranspiration), I-75, I-90 and I-105 in 2015, and I-60, I-80, I-100 and I-120 in 2016; the N-P2O5-K2O fertilization levels (kg ha(-1)) consisted of F-60 (60-30-30), F-120 (120-60-60), F-180 (180-90-90) and F-240 (240-120-120), corresponding to low, medium, medium high and normal high fertilization rates, respectively. Aboveground biomass, grain yield, CWP, PFP and net returns generally increased as irrigation and fertilization amount increased, except for that CWP and PFP constantly decreased with increasing irrigation and fertilizer amounts, respectively. There were significant interaction effects on these indexes in both years. The highest yields were 18.81 Mg ha(-1) at I105F180 and 20.53 Mg ha(-1) at I100F180, the highest CWP were 3.32 kg m(-3) at I90F180 and 3.99 kg m(-3) at I100F180, and the highest net returns were 17,482 CNY ha(-1) at I105F180 and 20,174 CNY ha(-1) at I100F180 in 2015 and 2016, respectively. Maize yield, CWP and net returns reached >= 95 % of their maximum values simultaneously when irrigation amount ranged 93%similar to 126% ET c and fertilizer (N-P2O5-K2O) amount ranged 124-62-62 similar to 228-114 - 114 kg ha(-1). The overall benefits of maize yield, CWP and net returns were finally maximized with irrigation amount of 109 % ETc (474 mm) and medium high fertilizer (N-P2O5-K2O) amount of 184-92 - 92 kg ha(-1). This study can provide a guideline for appropriate water and fertilizer management for sustainable spring maize production in the (semi-) arid region of Northwest China.
英文关键词	Drip fertigation Spring maize Grain yield Crop water productivity Partial factor productivity Economic benefits
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000525283000026
WOS关键词	ZEA-MAYS L. ; USE EFFICIENCY ; DEFICIT IRRIGATION ; LOESS PLATEAU ; MANAGEMENT-PRACTICES ; SUMMER MAIZE ; MULTIOBJECTIVE OPTIMIZATION ; NITROGEN FERTIGATION ; NUTRIENT MANAGEMENT ; INTERCEPTION LOSS
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
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/2XILL650/313950
作者单位	1.Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China; 2.Nanchang Inst Technol, Sch Hydraul & Ecol Engn, Nanchang 330099, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Zou, Haiyang,Fan, Junliang,Zhang, Fucang,et al. Optimization of drip irrigation and fertilization regimes for high grain yield, crop water productivity and economic benefits of spring maize in Northwest China[J]. 西北农林科技大学,2020,230.
APA	Zou, Haiyang,Fan, Junliang,Zhang, Fucang,Xiang, Youzhen,Wu, Lifeng,&Yan, Shicheng.(2020).Optimization of drip irrigation and fertilization regimes for high grain yield, crop water productivity and economic benefits of spring maize in Northwest China.AGRICULTURAL WATER MANAGEMENT,230.
MLA	Zou, Haiyang,et al."Optimization of drip irrigation and fertilization regimes for high grain yield, crop water productivity and economic benefits of spring maize in Northwest China".AGRICULTURAL WATER MANAGEMENT 230(2020).