1984年,湖南省娄底地区杂交水稻秋季制种全面推广定向栽培技术,不剥苞,不割叶,增加“九二○”用量,产量大幅度提高.全区秋制7760亩,单产320斤,比大丰收的1983年增长38.4%,单产超过400斤的乡、村,县县都有,且每亩节省剥苞、割叶工日16个以上。定向栽培技术是近年来试验成功的一种新的高产秋制技术,应采取如下措施: 1.力争早插。充分利用秋制前期气温高的特点,争取早播早插,提高分蘖成穗率,保证安全授 In 1984, Hunan province Loudi hybrid rice autumn planting comprehensive promotion of directional cultivation techniques, not stripping buds, do not cut leaves, increase the “920” dosage, the output increased significantly .Autumn area 7760 acres, yield 320 Kg, an increase of 38.4% over 1983 and a yield of more than 400 pounds in each of the townships, villages and counties in the country with a harvest of more than 16 leaves per mu. Oriented cultivation technology is a new high-yielding autumn technique that has been successfully tested in recent years. The following measures should be taken: 1. Strive for early insertion. Make full use of the characteristics of high temperature in the early fall of autumn, strive for early sowing and early sowing, increase the rate of tillering into spike, ensure safety