“枣树要丰产,保花保果是关键”。枣树同桃、李、苹果、梨等果树相比,开花多,花期长,消耗营养多,落花落果严重,一般座果率仅占总花量的1％～2％。要想枣树丰产,关键在于保花保果,总结各地生产实践经验,枣树管理要抓好以下措施。 (一)花前追肥在每年4月下旬至5月上旬,每株结果树施尿素0.5～0.8公斤或碳铵1～1.5公斤,过磷酸钙2公斤,氯化钾或硫 “Jujube to high yield, Paul flower and fruit protection is the key.” Compared with fruit trees such as peach, plum, apple and pear, jujube has more flowering, long flowering period, more nutrient consumption and serious drop of flowers and fruits. The fruit set rate is only 1% ~ 2% of the total fruit yield. To jujube yield, the key is to spend Paul fruit, summing up production practices around the experience, jujube tree management should grasp the following measures. (A) topdressing in late April to early May each year, the results of each tree tree urea 0.5 to 0.8 kg or ammonium bicarbonate 1 to 1.5 kg, superphosphate 2 kg, potassium chloride or sulfur