【摘要】 大豆对温度、雨水等生态因子反应较敏感,采用育苗移栽后,大豆根系发达,肥水吸收功能增强,叶片变小,叶面积指数稳定在4.5左右,有利于通风透光,生殖生长提前,荚粒数增加,大豆株型矮化,生育期缩短3~5 d,产量增加24.1%,而且达到省工、省种,提高密度和便于茬口调节的效果。更多还原

【Abstract】 Soybean is more sensitive to temperature,rain and other biological factors.In transplanted soybean,the root is strong,the function of obsorbing fertilizer and water is strengthened and the leaves will trail off while leaf area index is stable at 4.5 which benefits ventilation and light penetration or interception.The reproductive production is sped up,the number of pod is increased.The growing period is reduced by three to five days,and yield will be increase by 24.1%.It saves labor and seeds.It also increases density and good for rotation.更多还原