黑宝石李是近年从国外引进的品种,该品种早实丰产,栽后第二年长果枝即可挂果,3年生树1/15公顷产量500千克,4年生树产量1750千克。品质优,肉脆,味甘汁多,核小,可食率95%以上,无裂果,耐贮运。坐果率高,果实生育期为135～140天,挂果时间长,消耗养分多,不利于花芽正常分化,易导致树势早衰及隔年结果。在良好的栽培条件下,平均单果重110克,个别大果达175克。市场好,效益高。其主要栽培技术措施: Black gem is introduced from abroad in recent years varieties, the variety of early fruitful yield, the second year after planting fruiting branches fruiting, 3-year-old tree yield of 15 hectares 500 kg, 4-year-old tree production 1750 kg. Excellent quality, crisp, sweet and juicy, nuclear small, edible rate of 95% or more, no cracked fruit, storage and transportation. The fruit setting rate is 135 to 140 days and the fruiting period is long, which consumes more nutrients and is not conducive to the normal differentiation of flower buds, which may lead to premature decay of tree vigor and the result of next year. In good cultivation conditions, the average weight of 110 grams, some large fruit 175 grams. Good market, high efficiency. The main cultivation techniques and measures: