干旱区生态环境知识资源中心(Arid): Effects of Nitrogen Fertilizer Management on Dry Matter Accumulation and Yield of Drip-Irrigated Sugar Beet in Arid Areas

Arid

DOI	10.3390/agronomy14051010
	Effects of Nitrogen Fertilizer Management on Dry Matter Accumulation and Yield of Drip-Irrigated Sugar Beet in Arid Areas
	Su, Jixia; Zhou, Hongliang; Wang, Kaiyong; Fan, Hua; Hou, Zhenan
通讯作者	Fan, H ; Hou, ZN
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2024
卷号	14 期号:5
英文摘要	Clarifying the optimal combination of N fertilizer application rate and application method can maximize the yield of drip-irrigated sugar beet in arid areas, which is of great significance for reducing farmland N pollution and achieving sustainable agricultural development. In this three-year field experiment in Xinjiang, China, the effects of three N application rates [75 kg ha(-1) (N1), 150 kg ha(-1) (N2), and 225 kg ha(-1) (N3)] and three N application methods [the proportion of N applied at canopy rapid growth stage, taproot expansion stage, and sugar accumulation stage were (M-1) 100%: 0%: 0%, (M-2) 70%: 30%: 0%, and (M-3) 50%: 30%: 20%] on the dry matter accumulation (DMA) and distribution, leaf senescence, yield, and agronomic N use efficiency (aNUE) of drip-irrigated sugar beet were explored. The results showed that N application (N1, N2, and N3 treatments) increased the shoot DMA by 27.7% (three-year average), 52.6%, and 83.1%, and the taproot DMA by 28.3%, 43.2%, and 61.6%, respectively (p < 0.05), compared with CK (no N supply) treatment. The N application methods M-2 and M-3 increased the shoot DMA by 5.6% (three-year average) and 1.0% (p > 0.05), respectively, and the taproot DMA by 7.2% and 3.6% (p < 0.05), respectively, compared with M-1. In addition, M-2 could delay the end of shoot and taproot growth (t(e)) and the occurrence of maximum growth rate (t(m)). In particular, the N3M(2) treatment increased the leaf area index (LAI) by 20.4-75.9% (p < 0.05) compared with other treatments by increasing the leaf area duration (LAD) and decreasing the leaf senescence rate (LSR). The taproot yield and sugar yield of N3M(2) treatment reached the maximum at harvest time, but there was no significant difference in taproot yield and sugar yield between N3M(2) treatment and N2M(2) treatment. The aNUE in N2M(2) treatment was the highest (p < 0.05), which was 1.29-7.85 times higher than that of other treatments. Therefore, reducing the N application rate from 225 kgha(-1) to 150 kgha(-1) and applying 70% and 30% of 150 kg N ha(-1) at the canopy rapid growth stage and the taproot expansion stage, respectively, could achieve the goal of increasing sugar beet yield and N use efficiency. This study will provide an important reference for the sustainable production of sugar beet under drip irrigation in Xinjiang, China.
英文关键词	nitrogen application method plant growth rate leaf area duration leaf senescence rate agronomic nitrogen use efficiency
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:001233466000001
WOS关键词	PLANT-DENSITY ; WATER
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402771
推荐引用方式 GB/T 7714	Su, Jixia,Zhou, Hongliang,Wang, Kaiyong,et al. Effects of Nitrogen Fertilizer Management on Dry Matter Accumulation and Yield of Drip-Irrigated Sugar Beet in Arid Areas[J],2024,14(5).
APA	Su, Jixia,Zhou, Hongliang,Wang, Kaiyong,Fan, Hua,&Hou, Zhenan.(2024).Effects of Nitrogen Fertilizer Management on Dry Matter Accumulation and Yield of Drip-Irrigated Sugar Beet in Arid Areas.AGRONOMY-BASEL,14(5).
MLA	Su, Jixia,et al."Effects of Nitrogen Fertilizer Management on Dry Matter Accumulation and Yield of Drip-Irrigated Sugar Beet in Arid Areas".AGRONOMY-BASEL 14.5(2024).