免耕直播栽培油菜,可提高工效,降低成本。其高产高效的关键是如何搞好苗期管理。实践中的苗期管理措施如下: 1.移密补稀,确保“三苗” 油菜出苗后要适期进行间苗,定苗在2叶期,进行移密补稀,去弱留强,走小留大,去杂留纯,达到苗匀、苗全、苗壮。根据播种时间,每平方米留壮苗35～45株,每667平方米(1亩) Cultivation of rapeseed cultivation without tillage, can improve work efficiency, reduce costs. The key to its high yield and efficiency is how to do a good job of seedling management. Practice in the seedling management practices are as follows: 1. Dense and dense, to ensure that “three seedlings” rape should be appropriate after the emergence of thinning seedlings, Dingmiao in the 2 leaf stage, the density of thinning to weak to stay strong, take a small stay Large, complex to pure, to Miao Miao, Miao Quan, Miao Zhuang. According to the sowing time, leaving 35 to 45 plants per square meter, each 667 square meters (1 acre)