干旱区生态环境知识资源中心(Arid): Optimizing the split of N fertilizer application over time increases grain yield of maize-pea intercropping in arid areas

Arid

DOI	10.1016/j.eja.2020.126117
	Optimizing the split of N fertilizer application over time increases grain yield of maize-pea intercropping in arid areas
	Hu, Falong; Tan, Yan; Yu, Aizhong; Zhao, Cai; Fan, Zhilong; Yin, Wen; Chai, Qiang; Coulter, Jeffrey A.; Cao, Weidong
通讯作者	Chai, Q
来源期刊	EUROPEAN JOURNAL OF AGRONOMY
ISSN	1161-0301
EISSN	1873-7331
出版年	2020
卷号	119
英文摘要	Productive cropping systems like cereal-legume intercropping might contribute to feeding the ever-growing population. However, intercropping systems require adapted nitrogen (N) fertilizer management that better match temporal and spatial N supply with crop demand. On the basis of field experiment conducted in north-western China from 2012 to 2014, the study evaluated three N management practices in maize (Zea mays L.)-pea (Pisum sativum L.) intercropping on yield performance. All three treatments (N1, N2, and N3) received the same amount of fertilizer N prior to planting and at the pre-tasseling stage of maize, while they received different ratios of fertilizer N at jointing (45, 90, and 135 kg N ha(-1) for N1, N2 and N3, respectively) and at 15 d post-flowering (135, 90, and 45 kg N ha(-1) for N1, N2 and N3, respectively). The N1 treatment was superior to other treatments as it achieved a mean N nutrition index (NNI) near 1 and extended the duration of N accumulation by 3.6 d for pea and 9.0 d for maize. This treatment also improved the nodulation advantage of intercropped pea, enhanced compensatory intensity of intercropped maize, and increased yield components of pea and maize, compared to N3 (current farmer practice). Consequently, grain yield of pea and maize in intercropping with N1 was increased by 6 and 14 %, respectively, compared to N3. The optimized NNI and improved grain yield allow us to conclude that the N1 treatment with jointing top-dress N at 45 kg N ha(-1) and 15 d post-flowering top-dress N at 135 kg N ha(-1) can be used as an efficient N management practice for maize-pea intercropping.
英文关键词	Fertilizer N management Cereal-legume intercropping Nitrogen nutrition index Nodulation Compensatory effect
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000551125100011
WOS关键词	INTERSPECIFIC COMPETITION ; CROP PRODUCTIVITY ; NITROGEN USE ; WHEAT ; COMPONENTS ; COMPENSATION ; FACILITATION ; MANAGEMENT ; NODULATION ; SYSTEM
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/2XILL650/325135
作者单位	[Hu, Falong; Yu, Aizhong; Zhao, Cai; Fan, Zhilong; Yin, Wen; Chai, Qiang] Gansu Prov Key Lab Aridland Crop Sci, Lanzhou 730070, Peoples R China; [Hu, Falong; Yu, Aizhong; Zhao, Cai; Fan, Zhilong; Yin, Wen; Chai, Qiang] Gansu Agr Univ, Coll Agron, Lanzhou 730070, Peoples R China; [Tan, Yan] Gansu Agr Univ, Coll Forestry, Lanzhou 730070, Peoples R China; [Coulter, Jeffrey A.] Univ Minnesota, Dept Agron & Plant Genet, St Paul, MN USA; [Cao, Weidong] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Hu, Falong,Tan, Yan,Yu, Aizhong,et al. Optimizing the split of N fertilizer application over time increases grain yield of maize-pea intercropping in arid areas[J],2020,119.
APA	Hu, Falong.,Tan, Yan.,Yu, Aizhong.,Zhao, Cai.,Fan, Zhilong.,...&Cao, Weidong.(2020).Optimizing the split of N fertilizer application over time increases grain yield of maize-pea intercropping in arid areas.EUROPEAN JOURNAL OF AGRONOMY,119.
MLA	Hu, Falong,et al."Optimizing the split of N fertilizer application over time increases grain yield of maize-pea intercropping in arid areas".EUROPEAN JOURNAL OF AGRONOMY 119(2020).