四、大豆籽粒的灌浆与成熟生长繁茂的大豆田能否获得高额的产量,这要取决于大豆灌浆鼓粒期间的自然条件与栽培管理水平。这个时期决定着大豆每荚籽粒的粒数和大小。如果管理不当就不能取得好的收成。下面就谈谈大豆在这个阶段的生活特点与栽培要求。大豆从开花到结荚鼓粒阶段,没有明显的界限。在同一植株上,甚至在同一节上,同时有新开的花和已凋萎的花及幼荚,无限结荚习性的大豆更是如此。一般在第一朵花开放后10天到两周即可见到嫩荚.在正常条件下,经过3周基本上可以完全座英。结荚和鼓粒的速度,开始时较慢,但终花以后速度迅速加快。种 Fourth, the filling and maturity of soybean grains Lush growth of soybean fields can obtain high yields, which depends on the natural conditions during grain filling and soybean cultivation management level. This period determines the number and size of seeds per pod of soybean. Good results can not be achieved if mismanaged. Here to talk about the characteristics of soybean at this stage of life and cultivation requirements. Soybean flowering from pod to drum stage, there is no clear boundary. The same plant, even in the same section, with newly opened flowers and withered flowers and young pods, soybeans with unlimited pod habit even more so. Usually in the first flower open 10 days to two weeks to see the tender pods under normal conditions, after 3 weeks can basically complete the British. The speed of podding and drumming is slower at first, but rapidly after the final flowering. Species