干旱区生态环境知识资源中心(Arid): Late nitrogen fertilization improves cotton yield through optimizing dry matter accumulation and partitioning

Arid

DOI	10.1016/j.aoas.2023.06.001
	Late nitrogen fertilization improves cotton yield through optimizing dry matter accumulation and partitioning
	Tian, Yu; Wang, Fangyong; Shi, Xiaojuan; Shi, Feng; Li, Nannan; Li, Junhong; Chenu, Karine; Luo, Honghai; Yang, Guozheng
通讯作者	Luo, HH
来源期刊	ANNALS OF AGRICULTURAL SCIENCES
ISSN	0570-1783
EISSN	2090-8377
出版年	2023
卷号	68 期号:1 页码:75-86
英文摘要	Cotton (Gossypium hirsutum L.) production efficiency is constrained by issues such as a low nitrogen (N) utilization rate (30-35 %) and high N application rate (300-350 kg ha-1) in particular arid climates, such as Xinjiang, the largest irrigated cotton-producing region in China. These issues could be alleviated by allocating more N to late application to satisfy plant needs for growth and development. Over a three-year (2019-2021) field experiment, 240 kg ha-1 N was applied in 3 periods (squaring, flowering to peak boll, and late peak boll). The amount of N applied in the second period was fixed at 60 %, and the remaining 40 % was split between the first and the third periods, with five ratios (treatments), i.e., 0:6:4 (N064), 1:6:3 (N163), 2:6:2 (N262), 3:6:1 (N361) and 4:6:0 (N460), to investigate cotton response in terms of growth, biomass accumulation, and yield. Compared with the conventional treatment (N262), the N064 treatment narrowed the plant width by 11.7-12.0 %, increased canopy light transmittance by 6.1-56.9 %, extended the boll growth period by 8.8-9.4 %, improved defoliation by 9.3-11.7 % and increased both seed cotton yield and N partial factor productivity by 7.1-8.1 %, depending on the year. N064 accumulated 4.3-39.5 % more biomass (K) than N262, with the average and maximum growth rates of the reproductive organs (Vt and Vm, respectively) increasing by 8.6-89.0 % and 6.9-125.7 %, respectively, while the fast growth duration (& UDelta;t) shortened by 9.9-31.6 %. Again, N064 partitioned 1.5-35.8 % more biomass to bolls (higher partitioning index, PIboll). Seed cotton yield was significantly positively correlated with K, t1, Vt, Vm and PIboll and negatively correlated with & UDelta;t in reproductive organs. Collectively, the data suggest that allocating more N to late application could be an efficient N fertilizer management strategy in arid areas under N-reduced cultivation and fertigation.& COPY; 2023 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).
英文关键词	Cotton Late nitrogen fertilization Biomass accumulation Yield Nitrogen partial factor productivity
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001023034000001
WOS关键词	USE EFFICIENCY ; PLANT-DENSITY ; WATER ; BIOMASS ; DEFOLIATION ; IRRIGATION ; QUALITY ; GROWTH
WOS类目	Agriculture, Multidisciplinary
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/2XILL650/395313
推荐引用方式 GB/T 7714	Tian, Yu,Wang, Fangyong,Shi, Xiaojuan,et al. Late nitrogen fertilization improves cotton yield through optimizing dry matter accumulation and partitioning[J],2023,68(1):75-86.
APA	Tian, Yu.,Wang, Fangyong.,Shi, Xiaojuan.,Shi, Feng.,Li, Nannan.,...&Yang, Guozheng.(2023).Late nitrogen fertilization improves cotton yield through optimizing dry matter accumulation and partitioning.ANNALS OF AGRICULTURAL SCIENCES,68(1),75-86.
MLA	Tian, Yu,et al."Late nitrogen fertilization improves cotton yield through optimizing dry matter accumulation and partitioning".ANNALS OF AGRICULTURAL SCIENCES 68.1(2023):75-86.