干旱区生态环境知识资源中心(Arid): 氮磷调控对紫花苜蓿氮积累与土壤氮磷营养的影响

Arid

	氮磷调控对紫花苜蓿氮积累与土壤氮磷营养的影响
其他题名	Effects of Nitrogen and Phosphorus Regulation on Alfalfa Nitrogen Accumulation and the Nitrogen and Phosphorus Nutrients of Soil
	张进霞; 刘晓静; 郝凤; 范俊俊; 冯博政; 齐鹏
来源期刊	草地学报
ISSN	1007-0435
出版年	2016
卷号	24 期号:1 页码:61-68
中文摘要	在西北半干旱地区进行不同氮磷水平对种植第2年的甘农3号紫花苜蓿(Medicago sativa Gannong No. 3)产量、粗蛋白含量及氮积累的影响和紫花苜蓿草地土壤碱解氮、有效磷含量及其动态变化、土壤脲酶、碱性磷酸酶活性及其动态变化、土壤速效养分及酶活性与紫花苜蓿产量和蛋白总量的相关性研究。结果表明:氮磷肥能显著提高甘农3号紫花苜蓿产量和粗蛋白含量,施肥可提高土壤碱解氮、有效磷含量,增强土壤脲酶和碱性磷酸酶活性,其中氮磷配施(NP)作用明显大于氮、磷肥单施。相关性分析表明,甘农3号紫花苜蓿产量(y)与各层土壤碱解氮含量(x1)、脲酶活性(x2)、有效磷含量(x3)及碱性磷酸酶活性(x4)均呈显著或极显著正相关关系,与土壤碱解氮、有效磷含量的相关性最好,符合线性回归方程y=-2976.953+53.577x1+216.824x2+58.534x3+12.145 x4(R2=0.874**)。
英文摘要	TheGannong No.3variety of alfalfa planted in the Northwest semi-arid areas with different nitrogen and phosphorus levels was selected as the studied material in the second year.The yield,crude protein content and nitrogen accumulation of alfalfa and alkali-hydrolyzable nitrogen,phosphorus content and dynamic changes of soil,as well as the correlation of soil urease,soil available nutrient,the dynamic change of alkaline phosphatase activity,enzyme activity with the total protein production and yield of alfalfa were investigated.The results showed that nitrogen fertilizer could significantly improve the yield and crude protein content of alfalfaGannong No.3variety.And the nitrogen and phosphorus contents of soil,soil urease and alkaline phosphatase activities increased after fertilization.The effects of nitrogen and phosphorus fertilizer(NP)on the nitrogen and phosphorus contents of soil were greater than single application. Correlation analyses showed thatGannong No.3alfalfa yield(y)had significant positive correlation with soil nitrogen content(x_1),urease activity(x_2),phosphorus content(x_3)and alkaline phosphatase activity(x_4).The linear regression equation was y = -2976.953+53.577x1+216.824x2+58.534x3+12.145x_4(R~2=0.874**).
中文关键词	紫花苜蓿 ; 氮积累 ; 土壤养分 ; 土壤酶活性
英文关键词	Alfalfa Nitrogen accumulation Soil nutrient Soil enzyme activity
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:5685934
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233947
作者单位	张进霞, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 刘晓静, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 郝凤, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 范俊俊, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 冯博政, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 齐鹏, 甘肃农业大学资源与环境学院, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	张进霞,刘晓静,郝凤,等. 氮磷调控对紫花苜蓿氮积累与土壤氮磷营养的影响[J]. 甘肃农业大学,2016,24(1):61-68.
APA	张进霞,刘晓静,郝凤,范俊俊,冯博政,&齐鹏.(2016).氮磷调控对紫花苜蓿氮积累与土壤氮磷营养的影响.草地学报,24(1),61-68.
MLA	张进霞,et al."氮磷调控对紫花苜蓿氮积累与土壤氮磷营养的影响".草地学报 24.1(2016):61-68.