疏花疏果,是调节果树营养生长与生殖生长间关系,克服果树“大小年”结果,保持树势健壮,提高果实品质的有效措施之一。近年来,沈阳农学院、北京农业大学和辽宁省果树研究所等单位,对苹果进行了不同药剂疏花疏果试验,均收到较好效果。实践证明,采用药剂疏花疏果,用工少、方法简便、效果明显。 Thinning flowers and thinning is to adjust the relationship between vegetative and reproductive growth of fruit trees to overcome the “size year” results of fruit trees, to maintain robust stalks and improve fruit quality is one of the effective measures. In recent years, Shenyang Agricultural College, Beijing Agricultural University and Liaoning Provincial Institute of Fruit and other units of apple were thinning thinning effect of drug testing, have received good results. Practice has proved that the use of drug thinning thinning, less labor, the method is simple, the effect is obvious.