玉米一穴双株与一穴单株种植模式对比试验研究

开展了玉米一穴双株与一穴单株种植模式的对比试验。结果表明:相同种植密度的情况下,一穴双株种植的玉米比一穴单株种植的玉米单产高,高出的产量范围为333.3~1 428.6 kg/hm2,高出的百分比范围为3.4%~42.4%。对于一穴双株玉米种植模式,在7.50万~9.00万株/hm2的种植密度范围内,玉米单产随着种植密度的增加而增大。当种植密度为9.00万株/hm2时,即行距为70 cm×70 cm,穴距为32 cm时,一穴双株种植的玉米单产达到最高值11 285.7 kg/hm2。

Contrast Study on Maize Cultivation of One Hole-one Plant Mode and One Hole-double Plants Mode

Contrast test of one hole-one plant maize cultivation mode and one hole-double plants maize cultivation mode was launched. The results were as follows:in the same planting density,the grain yield of one hole-double plants maize cultivation mode was higher than that of one holeone plants maize cultivation mode,and the higher range was 333.3~1 428.6 kg/hm2,higher percentage range was 3.4%~42.4%. For one hole-double plants maize cultivation mode,maize yield increased with the increasing of planting density within the planting density range of 75~90 thousands plants each hectare. When the planting density was 90 thousands each hectare was as the row distance 70 cm ×70 cm,the hole distance was 32 cm,one holedouble plants maize cultivation mode reached a maximum value of 11 285.7 kg/hm2.