青贮玉米密度对主要农艺性状的影响及其演变规律的研究

Study on Effect and Change Rules of the Main Agronomic Characters of Different Densities for Ensiling Maize

通过研究青贮玉米的密度与产量及产量构成因素的关系,结果表明:密度对青贮玉米的单株鲜重、粒重、穗重、分蘖力及绿叶数影响最大,密度是影响产量的关键因素,南北疆及其类似地区的青贮玉米高产密度不宜超过82500株/hm2,最佳经济生产密度为67500～82500株/hm2。

The relation between maize planting density and maize yield and yield constitutes factors have been studied. The result indicated that planting density has greatest influence on fresh weight of single seedling, grain weight, ear weight, tillering ability and number of green leaves. The planting density is the key factor influencing the maize. It is unsuitable to exceed 82 500plants/ha in North and South Xinjiang and similar to the area. The best economical maize planting density is 67 500 - 82 500 plants/ha.