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在日本,疏花疏果是保证收获个大、果个整齐的果实,预防大小年结果的重要技术环节。果农通常在疏果前手工疏除1年生枝上腋花芽的花。石硫合剂已作为一种化学疏花剂注册。在花期或盛花后1～2天每公顷喷洒石硫合剂(22％)33～40l加水4000l对于疏除开花较晚的短果枝的边花、2年生或老枝上的顶花芽、腋花芽的花非常有效。富士苹果的幼果疏除剂仅有西维因。西维因单独施用时,一般在中心果直径为10～12mm效果最好。西维因施用时每公顷加水4000～5000l,浓度0.12％,加上0.03％的展着剂。西维因疏除效果在施用后7～10天开始出现,落果高峰在施用后3～4周。在日本,不论化学疏除剂施用与否,手工疏除是生产优质果品的最重要的一步。首先除去边果和腋花芽的小果。如
In Japan, thinning and thinning of flowers is an important technological step in ensuring the harvest of large, fruitful and neat fruits and preventing the size-year result. Farmers usually hand-thin the flowers of the axillary buds of an annual branch before thinning. Limestone has been registered as a chemical flowering agent. Spraying limestone (22%) per hectare for 1 to 2 days after flowering or full bloom 33 ~ 40l Water 4000l For the flowering flowers of the short branchlets sparsely flowering later, the top flower buds of 2-year-old or old branches, the axillary flower buds Flower is very effective. Fuji apple fruit juvenile sparse agent only the West-dimensional. When used alone, the effect of cinerea is usually 10 ~ 12mm in the center. When Xiwein was applied per hectare of water 4000 ~ 5000l, the concentration of 0.12%, plus 0.03% of the spreading agent. The effect of carbendazim began to appear 7 to 10 days after the application. The peak of fruit drop occurred 3 to 4 weeks after the administration. In Japan, manual sparging is the most important step in producing quality fruit regardless of chemical spreader application. First remove the small fruit of arbor and axillary buds. Such as