京郊地区苜蓿草地土壤水分状况与产草量的研究  

Relationships between soil moisture conditions and alfalfa yield in the suburb of Beijing

作　　者：陈曦[1] 任树梅[1] 杨培岭[1] 郝仲勇[2] 刘洪禄[2] 

机构地区：[1]中国农业大学水利与土木工程学院,北京100083 [2]北京市水利科学研究所,北京100044

出　　处：《农业工程学报》2005年第z1期218-220,共3页Transactions of the Chinese Society of Agricultural Engineering

基　　金：北京市科委"十五"重大科技攻关项目(No.10710240113)

摘　　要：对京郊地区种植的苜蓿进行试验研究表明:伏秋降水对冬前土壤水分有明显补偿作用,根据这一特征,应适时将有限的自然降水拦蓄到土壤中,提高水分利用效率。通过对10种苜蓿一年的干草产量比较,发现中苜一号和根选苜蓿这两个品种表现较优秀,获得的干草产量较高,可望在京郊地区继续试验,以进一步推广种植。The alfalfa in the suburb of Beijing was investigated. The results showed that soil moisture in alfalfa grassland before winter can be compensated by the precipitation in summer-autumn. The upper layer, limited natural rainfall should be stored up into the soil timely to improve the water use efficiency. By comparison with one yearly yield of ten varieties of alfalfa, Medicago sativa L.'Zhong mu NO1'and Medicago sativa L.'Gen xuan' were proved to be the more excellent breeds, whose yields are also higher. So the two breeds are worth to be popularized for planting in the suburb of Beijing.

关 键 词：京郊地区 紫花苜蓿 土壤水分 产量 

分 类 号：S542[农业科学—作物学]