干旱区生态环境知识资源中心(Arid): Reasonable Coupling of Water and Phosphorus Improves Hay Yield, and Water and Phosphorus Use Efficiency of Alfalfa

Arid

DOI	10.17957/IJAB/15.1386
	Reasonable Coupling of Water and Phosphorus Improves Hay Yield, and Water and Phosphorus Use Efficiency of Alfalfa
	Zhang, Qianbing; Liu, Junying; Li, Shengyi; Liu, Xuanshuai; Lu, Weihua; Wang, Xuzhe; Ma, Chunhui
通讯作者	Zhang, Qianbing ; Ma, Chunhui
来源期刊	INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY
ISSN	1560-8530
EISSN	1814-9596
出版年	2020
卷号	23 期号:6 页码:1061-1067
英文摘要	Alfalfa (Medicago sativa L.) is an important forage legume grown in arid areas, but shortages of water resources and low utilization of fertilizers have restricted its growth. In a 2-year field experiment in Xinjiang, China, alfalfa was grown using different amounts of irrigation, i.e., 3750, 4500, and 5250 m(3) ha(-1), under varying phosphorus (P) levels (0, 50, 100, and 150 kg P2O5 ha(-1)). The results showed that the soil total phosphorus (TP) content increased gradually with increasing P application, and the TP content for the 150 kg ha(-1) treatment was significantly higher than that of 50 and 0 kg ha(-1) treatments under same irrigation conditions (P < 0.05). Nonetheless, the hay yield, water use efficiency (WUE), and agronomic efficiency of P fertilizer (AEPF) of alfalfa and soil available P contents increased with increasing P level and then decreased; the 100 kg ha(-1) treatment reached the maximum values, and these values were significantly higher than those of the 0 kg ha(-1) treatment. Under the same P application conditions, with increasing irrigation amount, the hay yield of alfalfa increased to a maximum under the 4500 m(3) ha(-1) treatment and then decreased, and that of the 4500 m(3) ha(-1) treatment was significantly larger than those of the 3750 m(3) ha(-1) and 5250 m(3) ha(-1) treatments (P < 0.05). The soil TP and available phosphorus (AP) contents gradually decreased with increasing soil depth under the same irrigation amount and P application. In conclusion, P application at 100 kg P2O5 ha(-1) under irrigation rate of 4500 m(-3) ha(-1) seemed a viable technique to improve hay yield and agronomic efficiency of P fertilizer of alfalfa. (C) 2020 Friends Science Publishers
英文关键词	Alfalfa Drip irrigation Phosphorus Hay yield Water use efficiency
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000544226600002
WOS关键词	SOIL-WATER ; DRIP IRRIGATION ; FORAGE YIELD ; NITROGEN ; FERTILIZATION ; AVAILABILITY ; PRODUCTIVITY ; MANAGEMENT ; MAIZE
WOS类目	Agriculture, Multidisciplinary ; Biology
WOS研究方向	Agriculture ; Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319590
作者单位	Shihezi Univ, Coll Anim Sci & Technol, Shihezi 832003, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qianbing,Liu, Junying,Li, Shengyi,et al. Reasonable Coupling of Water and Phosphorus Improves Hay Yield, and Water and Phosphorus Use Efficiency of Alfalfa[J],2020,23(6):1061-1067.
APA	Zhang, Qianbing.,Liu, Junying.,Li, Shengyi.,Liu, Xuanshuai.,Lu, Weihua.,...&Ma, Chunhui.(2020).Reasonable Coupling of Water and Phosphorus Improves Hay Yield, and Water and Phosphorus Use Efficiency of Alfalfa.INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY,23(6),1061-1067.
MLA	Zhang, Qianbing,et al."Reasonable Coupling of Water and Phosphorus Improves Hay Yield, and Water and Phosphorus Use Efficiency of Alfalfa".INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY 23.6(2020):1061-1067.