柿树成花容易,但落花落果现象严重,直接影响柿子产量和当前柿树的发展。提高柿树产量的根木措施是加强地下管理,防治病虫,增加树体营养,达到枝壮、花优、座果率高。1988年～1989年连续两年在镇安县西口程家岭沟口成龄树上,于柿树的盛花期用1%、2%、3%的尿素溶液,分别不同浓 Persimmon blossom into flowers easily, but the drop of flowers and fruits serious, directly affect the persimmon production and the current development of persimmon. The measures to improve the production of persimmon are to strengthen the underground management, prevent and control pests and diseases, increase the tree nutrition, reach strong branch, flower excellent, fruit set rate is high. From 1988 to 1989 for two consecutive years in Zhen’an County West mouth Cheng Jialing Mizoguchi trees, the flowering of persimmon trees with 1%, 2%, 3% urea solution, respectively, different concentrations