1978年吉林县九台县建立21亩山楂早期丰产试验园,获得8年生平均亩产708.5公斤,建园8年平均每年亩获纯利润264.62元,经济效益高于寒地其它栽培果树的良好效果。主要技术管理措施:(一)选用良种壮苗,提高果园整齐度。原果园苗木质量较差,成活率很低,改为试验园后,选根系发达,苗高70cm 以上,愈合良好的叶赫品种补植。对保 In 1978, Jiutai County, Jilin Province, 21 acres of early production of hawthorn test garden, 8-year average yield of 708.5 kg per mu for 8 years average annual net profit of 264.62 yuan, the economic benefit is higher than the other good results in the cultivation of fruit trees in the cold . The main technical management measures: (A) selection of seedling seedlings, improve orchard uniformity. The original orchard seedling quality is poor, the survival rate is very low, to test the garden, the election root system developed, 70cm above the seedling height, good healing Yehe species replanting. To Paul