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枣树是多花树种,坐果率低,一般成熟果数仅为花朵总数的1～2％。如果树体本身营养条件失调和遇到不良外界环境条件的影响,坐果率会更低,常常是满树花,半树果。有的年份还会出现花而不实,影响产量的稳定和提高。 枣花坐果需要三个条件:一是要求树体有良好的营养条件;二是要求树体营养生长和生殖生长协调;三是要有利于授粉受精和适于开花生果的环境条件。现介绍4种提高枣树坐果率技术。
Jujube is a multi-flowering tree species, fruit setting rate is low, the average number of mature flowers is only 1 ~ 2% of the total number of flowers. If the tree itself nutrition disorders and experiencing adverse environmental conditions, fruit setting rate will be lower, often full of tree flowers, half tree fruit. In some years, flowers will be furbished, affecting the stability and improvement of output. Jujube flower fruit set needs three conditions: First, the tree requires good nutrition conditions; second requires the tree vegetative growth and reproductive growth coordination; third is to be conducive to pollination and fertilization and suitable for flowering fruit environmental conditions. Now introduce 4 kinds of jujube fruit setting technology.