摘要
研究了先正达408玉米品种种植密度对产量及产量构成因素的影响,结果表明,单种玉米推荐适宜密度在8.25万～9.00万株/hm2,种植密度为8.86万株/hm2时,产量最高,为15 333 kg/hm2;种植密度与百粒重呈高度负相关;穗粒数随着种植密度的增加而下降;且随着种植密度的增加,倒伏率逐渐增大。
The effect of the planting density on the yield and yield components of the maize variety Syngenta 408 were Studied. The results show that the suitable density recommended for single-cropping maize is 82 500-90 000 plants/bin2 and the highest yield, namely 15 333 kg/hm2 was achieved when the density was 88 600 plants/hm2. The planting density was highly correlated negatively with the weight of 100 grains. The grain number per spike deceased with the increase of the planting density. The lodging rate increased gradually with the increase of the Dlantinz densitv.
出处
《宁夏农林科技》
2013年第5期6-7,58,共3页
Journal of Ningxia Agriculture and Forestry Science and Technology
关键词
玉米
超高产
密度
Maize
Super-high yield
Density
