摘要
密植栽培条件下 ,矮秆大豆随密度增加植株增高、倒伏加重、单株生长量减弱。而群体干重、作物生长率在出苗后 78天前 (结荚末～鼓粒初期 )随密度增大而增加 ;78天以后 ,以 45株 /m2处理最高 ,其次是 35株 /m2 处理 ;叶面积指数则随密度增加呈上升趋势 ,但从生育、产量及产量性状等综合表现以 45株 /m2 处理最佳 ,产量达 30 83.34kg/hm2 ,叶面积指数为 5.971。
Under solid seeded condition, with the density increasing, short stalk soybean showed increase in plant height and lodging and decrease in growth of single plant. But the population dry matter weight and the crop growth rate increased from emergence of seedlings to the 78 t h day after that (the end of podding and the begin of seed filling). After that stage the treatment of 45 plants per m 2 had the biggest population dry matter weight and crop growth rate, and the treatment of 35 plants per m 2 had the second ones. LAI increased with the increase of density. The comprehensive performance, including growth, yield and yield characters, of 45 plants per m 2 was the best, with the yield per ha 3083.4kg and LAI 5.971.
出处
《黑龙江农业科学》
2000年第3期9-11,共3页
Heilongjiang Agricultural Sciences
基金
国家智引项目! -大豆密植高产品种及栽培技术的部分内容
