干旱区生态环境知识资源中心(Arid): Evaluating agronomic factors for maize production in a semi-arid Loess Plateau

Arid

DOI	10.1002/agj2.20818
	Evaluating agronomic factors for maize production in a semi-arid Loess Plateau
	Liang, Gaimei; Chi, Baoliang; Li, Nana; Chen, Wenliang; Qin, Wei; Wu, Xueping; Huang, Xuefang
通讯作者	Qin, W (corresponding author), Xinlianxin Chem Ind Grp Co Ltd, Innovat Ctr Efficient Use Nitrogen Fertilizer, Xinxiang 453731, Henan, Peoples R China. ; Chi, BL (corresponding author), Shanxi Agr Univ, Shanxi Inst Organ Dryland Farming, Taiyuan 030031, Shanxi, Peoples R China.
来源期刊	AGRONOMY JOURNAL
ISSN	0002-1962
EISSN	1435-0645
出版年	2021
英文摘要	Crop production is often affected by multiple agronomic factors. However, little has been reported on the synergistic effects of multiple factors on crop production. Here, we reported the effects of five factors (i.e., variety, planting density, nitrogen application, supplemental irrigation, and plastic mulching) on crop yields, using data from a 5-yr experiment at Dongyang, Shanxi province of China. An incomplete factorial design with these factors comprised 12 treatments, including two controls: optimized technology (OT) and conventional technology (CT), comprising all five factors applied at the added or subtracted level, respectively. The result showed that, on 5-yr average, OT significantly increased maize yield by 3.5 Mg ha(-1) (44.3% more) as compared to CT (7.9 Mg ha(-1)), showing a huge potential for increasing yields. Among the five factors, plastic mulching contributed the most in yield increase (11.5%), and high density, improved variety, and irrigation contributed 9.9, 6.9, and 5.1% increases in yield, respectively. There were no significant differences in yield between two N input levels (i.e., 225 and 300 kg N ha(-1)), suggesting the N input of 225 kg N ha(-1) was sufficient to realize a yield level of 8-11 Mg ha(-1) in the studied area. In conclusion, reducing the yield gap can only be achieved by optimizing multiple factors simultaneously because the effects of single measure are relatively small and inconsistent among years. The results of our study will help develop adaptive management practices for increasing crop yield stability in other semi-arid regions.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000704237400001
WOS关键词	WATER-USE EFFICIENCY ; ZEA-MAYS L. ; CLOSING YIELD GAPS ; MANAGEMENT-PRACTICES ; PLANT-DENSITY ; CROP YIELD ; SOIL-WATER ; CHINA ; NITROGEN ; PHOSPHORUS
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/2XILL650/362403
作者单位	[Liang, Gaimei; Chi, Baoliang; Li, Nana; Huang, Xuefang] Shanxi Agr Univ, Shanxi Inst Organ Dryland Farming, State Key Lab Integrat Sustainable Dryland Agr Pr, Natl & Local Joint Engn Lab Water Saving Tech Dry, Taiyuan 030031, Shanxi, Peoples R China; [Chen, Wenliang] Shanxi Agr Univ, Coll Agron, Taiyuan 030031, Shanxi, Peoples R China; [Qin, Wei] Xinlianxin Chem Ind Grp Co Ltd, Innovat Ctr Efficient Use Nitrogen Fertilizer, Xinxiang 453731, Henan, Peoples R China; [Wu, Xueping] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Engn Lab Improving Qual Arable Land, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Liang, Gaimei,Chi, Baoliang,Li, Nana,et al. Evaluating agronomic factors for maize production in a semi-arid Loess Plateau[J],2021.
APA	Liang, Gaimei.,Chi, Baoliang.,Li, Nana.,Chen, Wenliang.,Qin, Wei.,...&Huang, Xuefang.(2021).Evaluating agronomic factors for maize production in a semi-arid Loess Plateau.AGRONOMY JOURNAL.
MLA	Liang, Gaimei,et al."Evaluating agronomic factors for maize production in a semi-arid Loess Plateau".AGRONOMY JOURNAL (2021).