四川省养窝农场,1980年以来先后发展了5万多株苹果树,约2000多亩。但因夏秋多雨冬春干旱给苹果栽培带来了诸多不利。针对此问题从1983年起,在云盘山中队进行了400亩苹果幼树丰产栽培技术的探索。 苹果园位于侧水河北岸,多为缓坡台地,海拔1800-2100米;年均温14.6℃,年降雨量1487 Sichuan Province, nest farms, since 1980 has developed more than 50,000 apple trees, about 2,000 acres. However, due to summer and fall rainy spring drought to Apple cultivation has brought a lot of disadvantages. In response to this problem from 1983 onwards, Yunnan Panshan squadron carried out 400 acres of apple seedling cultivation techniques. Apple orchard is located in the north bank of the river, mostly gentle slope platform, 1800-2100 meters above sea level; annual average temperature 14.6 ℃, the annual rainfall 1487