福建有近十万亩8——15年荔枝树产量极低或不结果,究其原因主要是植株倾向营养生长,不易形成花穗;花穗发生早,花穗长,雄花比例大,雌雄花开放时期相遇时间短;多在低温阴雨季节,受粉受精机会少,以及幼果期营养不足和病虫为害。其克服的主要途径是:加强果园管理,促发秋分寒露梢,抑制冬梢;延迟抽穗期和调节 Fujian has nearly 100,000 mu 8-1-15 years litchi tree yield is very low or not, the main reason is that plants tend to vegetative growth, is not easy to form spikes; flower spikes early, long spikes, a large proportion of male flowers, male and female flowers Encounter a short time during the open period; more in the cold and rainy season, fewer opportunities for powder fertilization, as well as young fruit and pest insects during the nutritional deficiencies. Its main ways to overcome are: to strengthen the management of orchards, to promote the autumn points cold winter, inhibition of winter shoots; delayed heading and conditioning