干旱区生态环境知识资源中心(Arid): Optimizing water and phosphorus management to improve hay yield and water- and phosphorus-use efficiency in alfalfa under drip irrigation

Arid

DOI	10.1002/fsn3.1530
	Optimizing water and phosphorus management to improve hay yield and water- and phosphorus-use efficiency in alfalfa under drip irrigation
	Zhang, Qianbing; Liu, Junying; Liu, Xuanshuai; Li, Shengyi; Sun, Yanliang; Lu, Weihua; Ma, Chunhui
通讯作者	Ma, Chunhui
来源期刊	FOOD SCIENCE & NUTRITION
ISSN	2048-7177
出版年	2020
卷号	8 期号:5 页码:2406-2418
英文摘要	Alfalfa (Medicago sativa L.) is an important forage legume in arid areas, but limited water resources and low fertilizer utilization have restricted its agricultural development. Meanwhile, studies on the effects of integrated water and phosphorus on production performance and water-use efficiency and phosphorus-use efficiency of alfalfa, especially on hay yield, phosphorus accumulation, and total phosphorus uptake are rarely reported under drip irrigation. The treatments were a factorial combination of three irrigation rates (5,250, 6,000, and 6,750 m(3)/ha per year) and four P rates (0, 50, 100, and 150 kg/ha per year) and consisted of 12 treatments for water and P management, arranged in a randomized complete block design with three replicates. Total hay yield and water-use efficiency and phosphorus-use efficiency of alfalfa in P-2 treatment were significantly greater than those in the P-1 and P-3 treatments (p < .05), and the total hay yield of alfalfa with phosphorus application increased by 7.43%-29.87% compared with that in the nonphosphorus (P-0) treatment under the same irrigation amount. The total phosphorus and available phosphorus concentrations in the 0-20 cm soil layer were greater than those in the 20-40 cm and 40-60 cm soil layers compared with those in the P-0 treatment. Correlation analyses showed that total hay yield was significantly positively correlated with total phosphorus uptake and water-use efficiency (p < .01). The accumulated phosphorus concentration was significantly positively correlated with total phosphorus and available phosphorus concentration (p < .01) and was positively correlated with the phosphorus-use efficiency (p < .05). The membership function method was used to evaluate all the indicators, and the three treatments that had the greatest influence on the production performance of alfalfa were, in order, W2P2 > W3P2 > W1P2. Therefore, an irrigation rate of 6,000 m(3)/ha and a phosphorus application rate of 100 kg/ha per year should be considered as the best management for both high yield and water-use efficiency and phosphorus-use efficiency of alfalfa.
英文关键词	alfalfa available phosphorus drip irrigation hay yield total phosphorus water- and phosphorus-use efficiency
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000520517300001
WOS关键词	SOIL-WATER ; MEDICAGO-SATIVA ; LOESS PLATEAU ; FORAGE YIELD ; NITROGEN ; AVAILABILITY ; FERTILIZER ; RESPONSES ; STRESS ; GROWTH
WOS类目	Food Science & Technology
WOS研究方向	Food Science & Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314521
作者单位	Shihezi Univ, Coll Anim Sci & Technol, Shihezi 832003, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qianbing,Liu, Junying,Liu, Xuanshuai,et al. Optimizing water and phosphorus management to improve hay yield and water- and phosphorus-use efficiency in alfalfa under drip irrigation[J],2020,8(5):2406-2418.
APA	Zhang, Qianbing.,Liu, Junying.,Liu, Xuanshuai.,Li, Shengyi.,Sun, Yanliang.,...&Ma, Chunhui.(2020).Optimizing water and phosphorus management to improve hay yield and water- and phosphorus-use efficiency in alfalfa under drip irrigation.FOOD SCIENCE & NUTRITION,8(5),2406-2418.
MLA	Zhang, Qianbing,et al."Optimizing water and phosphorus management to improve hay yield and water- and phosphorus-use efficiency in alfalfa under drip irrigation".FOOD SCIENCE & NUTRITION 8.5(2020):2406-2418.