Quantifying nutrient stoichiometry and radiation use efficiency of two maize cultivars under various water and fertilizer management practices in northwest China

doi:10.1016/j.agwat.2022.107772

CORC > 兰州理工大学 > 兰州理工大学

	Quantifying nutrient stoichiometry and radiation use efficiency of two maize cultivars under various water and fertilizer management practices in northwest China
	Yan, Shicheng 1,2; Wu, You 3; Fan, Junliang 2; Zhang, Fucang 2; Guo, Jinjin 2; Zheng, Jing 4; Wu, Lifeng 5; Lu, Junsheng 2
刊名	Agricultural Water Management
	2022-09-01
卷号	271
关键词	Efficiency Irrigation Nitrogen fertilizers Nutrients Stoichiometry Fertilisation Grain N:P ratio Grain yield Intercepted photosynthetically active radiations Maize cultivars N:P ratio NorthWest China Nutrient partitioning Radiation use efficiency Supplementary irrigation
ISSN号	0378-3774
DOI	10.1016/j.agwat.2022.107772
英文摘要	Precise nutrient diagnosis is the basis of accurate simulation of maize (Zea mays L.) grain yield and high-efficient utilization of resources under the changing climate. However, the combined effects of supplementary irrigation and fertilizer application on plant stoichiometry of various maize cultivars in water-limited and nutrient-deficient regions are still poorly understood. A three consecutive year field experiment (2015−2017) was conducted on two maize cultivars (QL14 and ZD958) in northwest China, with two irrigation treatments (RF: rain-fed and DI: drip irrigation) and two fertilization treatments (F0: no fertilization and F1: local fertilization practice). The results showed that the radiation use efficiency for biomass yield of QL14 with fertilization under drip irrigation was increased by 7.39% than that of ZD958. DI (70.19 kg kg−1) and ZD958 (68.55 kg kg−1) obtained significantly higher physiological efficiency of nitrogen fertilizer than RF (59.52 kg kg−1) and QL14 (61.17 kg kg−1), respectively. Both plant and grain N:P ratios under F1 were higher than those under F0. QL14 had significantly higher grain N:P ratio (4.64) than ZD958 (4.26) under DIF1. Grain yield was increased obviously when grain N:P ratio and plant N:K stoichiometry were greater than 4.0 and 1.2, respectively. The newly released maize cultivar (QL14) was highly recommended as forage and cereal crops, since QL14 obtained significantly higher leaf and stem dry matter even under severe drought and low soil fertility conditions. Our study provides an opportunity to achieve high-yielding maize systems in northwest China and maybe other regions with similar environments, and the data will help inform policies and strategic plans for the effective use of water and fertilizer resources. © 2022 Elsevier B.V.
WOS研究方向	Agriculture ; Water Resources
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000832868800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159125]
专题	兰州理工大学
作者单位	1.College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou; 730020, China; 2.Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education, Northwest A&F University, Yangling; 712100, China; 3.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 4.Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu; 610041, China; 5.School of Hydraulic and Ecological Engineering, Nanchang Institute of Technology, Nanchang; 330099, China
推荐引用方式 GB/T 7714	Yan, Shicheng,Wu, You,Fan, Junliang,et al. Quantifying nutrient stoichiometry and radiation use efficiency of two maize cultivars under various water and fertilizer management practices in northwest China[J]. Agricultural Water Management,2022,271.
APA	Yan, Shicheng.,Wu, You.,Fan, Junliang.,Zhang, Fucang.,Guo, Jinjin.,...&Lu, Junsheng.(2022).Quantifying nutrient stoichiometry and radiation use efficiency of two maize cultivars under various water and fertilizer management practices in northwest China.Agricultural Water Management,271.
MLA	Yan, Shicheng,et al."Quantifying nutrient stoichiometry and radiation use efficiency of two maize cultivars under various water and fertilizer management practices in northwest China".Agricultural Water Management 271(2022).