1．定苗定密度地膜豇豆出苗现青后即可破膜，半个月后间苗、定苗。间苗、定苗的原则是：分2～3次去弱苗、小苗、病苗，留壮苗、大苗，在第四片真叶前走好苗，每窝留2苗，每667平方米留苗8000株以上。2．适时追肥防早衰豇豆中后期追肥方法：一是适时适量挖洞追施。在前期施肥的 1. Dingmiao fixed density film cowpea can emerge young after the rupture of membranes, half a month after the seedlings, Dingmiao. Miao Miao, the principle of Dingmiao is: 2 to 3 times to weak seedlings, seedlings, disease vaccine, stay strong seedlings, seedlings, leaves in the fourth real leaves before leaving a good seedling, leaving 2 per litter, 667 square meters per stay Miao More than 8000 strains. 2. Timely dressing anti-premature senility cowpea Middle and late dressing methods: First, timely and appropriate amount of tunneling. In the pre-fertilization