施肥对紫花苜蓿产量和品质的影响  

Effect of Formula Fertilizing on the Yield and Quality of Alfalfa

作　　者：尚晨[1] 张月学[1] 李佶恺[1] 张海玲[1] 陈晶[1] 张强[1] 康欣桐[1] 

机构地区：[1]黑龙江省农业科学院草业研究所,黑龙江哈尔滨150086

出　　处：《黑龙江农业科学》2013年第6期122-126,共5页Heilongjiang Agricultural Sciences

基　　金：国家"十二五"科技支撑计划资助项目(2011BAD17B04-2);现代农业产业技术体系建设专项资金资助项目(CARS-35)

摘　　要：为了确定紫花苜蓿的合理施肥时间和施用量,从而提高其产量,采用正交试验设计,对位于黑龙江省兰西县远大乡胜利村的国家牧草产业技术体系绥化综合试验站生长第3年的苜蓿产草实验田进行施肥试验。结果表明:返青期与二次刈割后施肥效果不明显,第一次刈割后按75kg.hm-2纯氮,350kg.hm-2纯钾施肥效果最好。且苜蓿干草品质与施肥量没有直接关系。For the purpose of defining reasonable fertilizer amount and applying time, thus to improve alfalfa yield,The experiment was carried out at Suihua Comprehensive Experimental Station of China National Foragegrass Research System to study the effects of fertilizing on the forage yield and quality of alfalfa by using established three year-old stand of alfalfa（Medicago sativa L. ）and orthogonal experimental design. The result showed that formula fertilization effect at turning green stage in spring and after the second cut were not good, formula fertilization after the first cut was the best fertilization period. The best fresh yield was reached by the application of N 75 kg· hm^2, K20 350 kg· hm^2. Formula fertilization was irrelevant to alfalfa quality.

关 键 词：紫花苜蓿(Medicago SATIVA L ) 施肥 产量 

分 类 号：S541.9[农业科学—作物学]