安徽省城西湖农场,从一九七一年就开始试验用飞机直播水稻。在安徽省民航局、飞行十四大队的配合下,连续五年来坚持科学实验,共试播了六千一百多亩。初步掌握了飞机播种水稻的基本技术,对飞机播种所要求的整地质量、播种量、飞行高度、播种时飞行操作技术及地面与空中的组织指挥等方面积累了一定的经验。为了加快发展农业航空作业,他们自己动手兴修了机 Chengxi Lake Farm in Anhui Province started experimenting with direct seeding of rice with airplanes from 1971. With the cooperation of Civil Aviation Administration of Anhui Province and Flight 14 Brigade, they have persistently conducted scientific experiments for five years in succession and have broadcast over 6,100 mu. It has initially mastered the basic technology of aircraft sowing rice and gained some experience in land preparation, seeding rate, flight altitude, flight operation technique of sowing and organization command of ground and air required for aircraft sowing. In order to speed up the development of agricultural aviation, they started to build their own machines