丘陵果园放炮扩穴好本场果园地处沙岭薄地，为改善果树根系生长环境，我们于果树休眠期对３０ｈｍ２（公顷）１５年生树果园，实行放炮扩穴，起到了壮树增产的明显效果。做法是在株行间呈“品”字型打炮眼，炮眼深ｌｍ，直径５ｃｍ，每炮眼用炸药０．５ｋｇ，先放入ｌ／３... Hilly orchard blasting good hole good The orchard is located in the Shaling thin ground, in order to improve the fruit tree root growth environment, we dormant fruit trees in 30hm2 (hectare) 15-year-old tree orchard, the implementation of blasting hole, played a significant effect of strong tree yield . The practice is in the line between the line was “product” font type gunnery eye, hole depth lm, diameter 5cm, each blasthole with explosives 0.5kg, first into l / 3 ...