巨峰葡萄现已成为南方各省区的葡萄主栽品种,但在生产上常因落花落果严重而影响着产量的增加和商品性的提高。巨峰葡萄落花落果的原因除品种特性外,最主要的有气候条件和植株体内的营养状况。树体内养分不足往往是由于不良的立地条件和栽培引起的,如种植在过于肥沃的土壤上或过多地施氮肥以及过重地修剪引起新梢徒长,造成落花落果;秋季新梢不能及时停止生长,贮藏养分少,引起花器官发育不全而造 Kyoho grapes have now become the main varieties of grapes in the southern provinces and autonomous regions, but the production is often due to the drop of fruit and severely affected the increase of production and improve the product. Kyoho grapes fall drop fruit reasons in addition to variety characteristics, the most important are the climatic conditions and plant nutrition in vivo. Inadequate nutrition in the tree is often caused by poor site conditions and cultivation, such as planting on fertile soil or excessive application of nitrogen fertilizer and over-pruning to cause the new shoots to grow and result in the drop of fruit; the shoots in autumn can not stop growing in time , Less storage of nutrients, causing flower hypoplasia organs