“饲用玉米—黑麦草”草地农业系统的研究——不同密度对青贮饲用玉米生产效果的影响  

Study of "corn—Italian ryegrass"grassland agricultural system——Effect of different densities on the production effect of silage maize

作　　者：张新跃[1] 李元华[1] 张瑞珍[1] 何丕阳[2] 唐一国[1] 

机构地区：[1]四川省草原工作总站,四川成都610041 [2]四川长江草业研究中心,四川洪雅612360

出　　处：《草业科学》2006年第2期54-56,共3页Pratacultural Science

摘　　要：采用小区试验方式，在施肥水平、管理条件一致的情况下，研究了不同种植密度对青贮饲用玉米Zea mays产量和品质的影响。结果表明：不同的栽培密度对青贮饲用玉米产量和品质都有影响，采用85cm×15cm和65cm×25cm播种密度（即61530-78450株／hm^2）的青贮玉米产量高，品质较好，效益最高，差异达到极显著水平，为四川省青贮饲用玉米的大田生产提供了重要的依据。With plot test design,the effect of different planting densities on the production and quality of silage maize under the same fertilizer level and management was studied. The result showed that different planting densities affected the production and quality of silage maize,seeding densities 85 cm× 15 cm and 65 cm× 25 cm （ namely 61 530-78 450 plant/hm^2） had higher yield ,better quality and the highest benefit . There were a positive correlation. Results of this experiment provided a base for field planting of silage maize in Sichuan province.

关 键 词：青贮饲用玉米 密度 产量 

分 类 号：S513[农业科学—作物学] S543.6