播种量对秋播苜蓿越年草产量的影响  

Effect of Alfalfa Sowing Quantity in Autumn on Fresh Yield in the Second Year

作　　者：余有成[1] 赵永宏[1] 郭海俊[1] 李玉荣[1] 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌71210

出　　处：《家畜生态学报》2007年第5期86-88,共3页Journal of Domestic Animal Ecology

基　　金：陕西省农业攻关项目(2004K02-G14)

摘　　要：苜蓿播种量从10.0～45.0kg/hm^2设8个处理,研究不同播种量对越年草产量影响。结果表明:不同播种量对苜蓿越年草产量有显著影响,播种量10.0～35.0 kg/hm^2,苜蓿越年草产量随播种量增加而提高,播种量超过35.0 kg/hm^2,苜蓿越年草产量不再随播种量增加而提高;陕西关中农区苜蓿播种量控制在15.0～35.0 kg/hm^2,有利于提高其越年草产量。The effects of alfalfa sowing quantity at 8 levels from 10 kg/hm^2 to 45 kg/hm^2 in Autumn on fresh yield in the second year were studied in this paper. The results showed that sowing quantity of alfalfa has significant effect on fresh yield in the second year. Alfalfa fresh yield in the second year was raised with the increase of sowing quantity from 10 kg/hm^2 to 35 kg/hm^2. When sowing quantity was above 35 kg/hm^2, alfalfa fresh yield was not improved. The suitable sowing quantity at Guanzhong area of shaanxi was 15.0 kg/hm^2 to 35 kg/hm^2 ,which would increase the grass yield in the second year.

关 键 词：苜蓿 播种量 产量 

分 类 号：S811.5[农业科学—畜牧学]