混播草地建植、施肥和割草利用优化模式研究  

A study on the optimum model of establishment, fertilizing and cutting of a mixtured pasture

作　　者：罗天琼[1] 罗绍薇[1] 李辰琼[1] 陈培燕[1] 蒋志霞 

机构地区：[1]贵州省草业科学研究所,贵州独山558200 [2]贵州省都匀市畜牧局,贵州都匀558000

出　　处：《草业科学》2006年第3期84-88,共5页Pratacultural Science

基　　金："苇状羊茅的区域试验"项目资助[黔农字(2001)05]

摘　　要：选择牧草播期、混播草地中禾本科和豆科牧草的混合比例、施氮量、施磷量和刈割次数5个试验因子,进行了产量分析,建立该草地的综合管理优化模式,确定最佳的管理因子和水平;同时对混播草地的营养成分进行了分析。结果表明:在9月播种,豆禾比例为1∶3,施氮量为0.15 t/hm2,施磷量为0.3 t/hm2,刈割4次时,其营养成分含量达15.37%,综合效果最好。Five trial factors were selected to construct the functional model for a mixtured pasture of white clover and tall rescue, they were date of sowing, seeding rate of grass/legume, level of N and P fertilizer application and cutting frequency. The relationship between herbage yield and trial factors was analyzed through the model. The results indicated that the best plan was to sow in September, seeding rate of grass 75%, applying N and P fertilizer 0. 15 t/hm^2 and 0.3 t/hm^2 respectively, and cutting 4 times.

关 键 词：混播草地 建植 施肥 割草 利用 优化模式 

分 类 号：S54[农业科学—作物学]