一、在花量少的年份,要采取保花保果措施 可于盛花期喷布0.3％硼砂和0.5％尿素的混合溶液,6月中旬幼果膨大期再喷布一次,对提高座果率有良好效果。 二、据广大果农反映,花期喷布30ppm的“九二○”溶液,能显著提高国光苹果的座果率,因“九二○”能增强苹果树生殖器官对养分的争夺能力, First, in the years with less flowers, flowers and fruits should be taken to protect fruit and flowers at the flowering stage can be sprayed 0.3% borax and 0.5% urea mixed solution, the middle of June young fruit enlargement and then spray again to improve fruit rate Have a good effect. Second, according to the majority of farmers reflect the flowering spray 30ppm of “920” solution, can significantly improve the fruit of Guoguang’s fruit rate, because “920” can enhance apple tree reproductive organs competing for nutrients,