目前,我省苹果幼树占总株数60%左右。幼树仍多采取大冠稀植,普遍存在着幼树结果晚、单产低的现象。我所于1971年在所内平地按照株距6米,行距了米,栽植金冠4.7亩。1972年又加密改为株距3米,行距3.5米,平均每亩栽植63.5株。栽后,在加强土肥水和防治病虫害等综合管理,改进幼树整形修剪技术的情况下,使其提早结果,获得了早期丰产。 At present, the province of apple trees accounted for about 60% of the total number of strains. Saplings still take big crown thinning, the prevalence of young trees results late, low yield phenomenon. In 1971 I was in the flat according to the plant spacing of 6 meters, the row of meters, planted Golden Delicious 4.7 acres. Encrypted in 1972 and changed to 3 meters spacing, spacing of 3.5 meters, an average of 63.5 acres planted. After planting, soil fertility and pest control and other integrated management, to improve sapling pruning technology circumstances, to make early results, access to early high yield.