大豆徒长表现为植株高大细弱,茎秆纤细柔嫩,叶片淡绿,第一分枝离基部较远,节间过长,分枝少;群体繁茂,封行早,花荚脱落重,结荚少,严重时成片倒伏,造成严重减产。大豆徒长可采取如下措施加以 Slimy performance of the plant is tall and delicate, the stem is delicate and tender, the leaves are light green, the first branch is farther away from the base, the internode is too long and the branches are few; the group is lush, the seal line is early, , Serious film into lodging, causing serious cuts. Slim bean can take the following measures to be