Yield and quality properties of alfalfa (Medicago sativa L.) and their influencing factors in China

doi:10.1016/j.eja.2022.126637

	Yield and quality properties of alfalfa (Medicago sativa L.) and their influencing factors in China
	Feng, Yinping 1; Shi, Yue 1; Zhao, Mengying 1; Shen, Haihua ; Xu, Longchao ; Luo, Yongkai 4; Liu, Yizhen ; Xing, Aijun ; Kang, Jie 1; Jing, Haichun5 ; Fang, Jingyun2,3
	2022
发表期刊	EUROPEAN JOURNAL OF AGRONOMY
ISSN	1161-0301
卷号	141
摘要	Alfalfa (Medicago sativa L.) is the most valuable perennial forage crop, and assessing its yield and quality properties is essential to evaluate forage value of livestock production. However, regional patterns and con-trolling factors of the yield and quality of alfalfa have not been well documented. In this study, using a dataset of 7166 observations from 301 sites across the country collected from 334 publications, we explored the re-lationships between the yield and quality properties of alfalfa in China and the effects of environmental factors and management practices on them. The average dry matter yield of alfalfa was 11.18 ?? 6.69 Mg ha-1, with average crude protein, ether extract, crude fiber, acid detergent fiber, neutral detergent fiber, crude ash, nitrogen-free extract, calcium, phosphorus and relative feed values of 19.05 ?? 2.87%, 2.62 ?? 0.97%, 27.16 ?? 5.21%, 31.29 ?? 5.58%, 40.48 ?? 6.34%, 9.49 ?? 1.59%, 38.67 ?? 7.49%, 1.68 ?? 0.55%, 0.25 ?? 0.12%, and 151 ?? 31.94, respectively. Alfalfa quality decreased with increasing yield. Geographically, alfalfa had higher yield and crude protein content in South China than in other regions. Quality was positively correlated with both precipitation and temperature, while yield showed a positive relationship with temperature but no significant relationship with precipitation. High soil nutrient availability (e. g., soil available nitrogen, SAN; soil available phosphorus, SAP; soil available potassium, SAK) improved the yield, while high SAN and SAP contents increased the crude protein content. The alfalfa yield increased and the quality decreased with advancing maturity and age, whereas increasing the number of harvests may benefit the quality. This study documents comprehensive in-formation on the yield and quality of alfalfa and provides insights for policy makers for the effective management and sustainable development of alfalfa production.
关键词	Alfalfa Yield Quality Regional pattern Impact factors
学科领域	Agronomy
DOI	10.1016/j.eja.2022.126637
收录类别	SCI
语种	英语
WOS关键词	WATER-USE EFFICIENCY ; ROOT MORPHOLOGY TRAITS ; FORAGE YIELD ; POTASSIUM FERTILIZATION ; NUTRITIVE-VALUE ; CLIMATE-CHANGE ; PERENNIAL LEGUMES ; TOTAL NITROGEN ; LOESS PLATEAU ; LEAF NITROGEN
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000867424900001
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1873-7331
作者邮箱	jyfang@urban.pku.edu.cn
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28714
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 4.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China 5.Binzhou Univ, Shandong Key Lab Ecoenvironm Sci Yellow River Del, Binzhou 256603, Peoples R China 6.Chinese Acad Sci, Inst Bot, Engn Lab Grass Based Livestock Husb, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Feng, Yinping,Shi, Yue,Zhao, Mengying,et al. Yield and quality properties of alfalfa (Medicago sativa L.) and their influencing factors in China[J]. EUROPEAN JOURNAL OF AGRONOMY,2022,141.
APA	Feng, Yinping.,Shi, Yue.,Zhao, Mengying.,Shen, Haihua.,Xu, Longchao.,...&Fang, Jingyun.(2022).Yield and quality properties of alfalfa (Medicago sativa L.) and their influencing factors in China.EUROPEAN JOURNAL OF AGRONOMY,141.
MLA	Feng, Yinping,et al."Yield and quality properties of alfalfa (Medicago sativa L.) and their influencing factors in China".EUROPEAN JOURNAL OF AGRONOMY 141(2022).

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