近几年来,我站为了增加绿肥鲜草产量,种植玉米的方式改为用苦养钵育苗,移栽期在4月中、下旬。此时正值地老虎危害盛期,所以防治好地老虎,确保玉米全苗,显得特别重要。 我们于1976年5月中旬,在一块红花草茬播的玉米制种田玉米三叶期试验,把嫩红花草茎叶切成1厘米左右长, In recent years, I station in order to increase the yield of fresh green manure, the way to grow corn with bitter bowl nursery, transplanting in mid-April, late. At this moment, the tiger endangered the peak, so it is especially important to prevent and cure the tiger so as to ensure the whole corn seedlings. In mid-May, 1976, we experimented on the three-leaf stage of maize in corn planted on a piece of red grass and cut the stems and leaves of the tender plants into about 1 cm long.