中原单32是近几年来扎兰屯地区青贮玉米的主栽品种,每年播种面积约为45000亩,为了找出其最佳的种植密度,提高其产量,2005年我们在本地区进行了不同种植密度试验研究。1试验基本情况1.1试验地点试验地选在内蒙古扎兰屯市河西科技示范场。该场年降水量450m m左右,年(≥10℃)活动 Zhongyuan 32 is the main cultivated silage corn in Zhalantun in recent years. The annual sown area is about 45000 mu. In order to find out the best planting density and increase its output, we planted different planting in this area in 2005 Density test research. 1 The basic situation of the test 1.1 Test site The test ground selection in Zhalantun City, Inner Mongolia Hexi science and technology demonstration field. The annual precipitation of about 450m m, year (≥ 10 ℃) activities