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1．适量疏花在盛花期喷施100ppm的乙烯剂，可以控制授粉，抑制胚的生长，促进花果脱落，起到疏花作用，有利于保花保果。屯可在谢花三分之二时，喷施8～10ppm的防落素或50ppm的“九二0”，加0．5％的尿素，0．3％的磷酸二氢钾和0．2％的利肥，隔10～15天喷2次，若不用硼肥或改?
1. Appropriate amount of flowering Spraying 100ppm of vinyl in full flowering stage can control pollination, restrain the growth of embryos, promote flower shedding, play the role of thinning flower, which is good for flower preservation and fruit preservation. Tuen can Xie two-thirds of the time, spray 8 ~ 10ppm of anti-pigmentation or 50ppm of “9220”, plus 0.5% urea, 0.3% of potassium dihydrogen phosphate and 0.2 % Of fat, spray 2 times every 10 to 15 days, if you do not use boron fertilizer or change?