枣树开花虽多,但常因管理粗放,树体营养不足,授粉受精不良,病虫危害等因素而落花落果严重,通常坐果率仅为1％～2％,产量很低。那么,如何才能提高坐果率呢?现介绍几种操作简便、行之有效的方法。 一、根外施肥。在开花期和幼果期用0.5％的尿素,或0.3％的尿素和0.1％的磷酸二氢钾混合液进行叶面喷施,不但能减少落花落果,提高坐果 Jujube flowering although many, but often due to extensive management, lack of tree nutrition, poor pollination and fertilization, pest damage and other factors and falling flowers serious, usually fruit set rate of only 1% to 2%, the yield is very low. So, how can we improve the rate of fruit set? Here are some simple and effective methods. First, the root fertilization. In the flowering and young fruit stage with 0.5% urea, or 0.3% urea and 0.1% of potassium dihydrogen phosphate mixture for foliar spray, not only can reduce the drop fruit, improve fruit set