荔枝落果和裂果是荔枝生产中的两大难题 ,现针对其落果裂果的原因提出一些防止措施。1　落果的发生荔枝有三次落果高峰期 :一是幼果期落果。谢花后 7～ 1 0天幼果绿豆大时大量脱落 ,主要原因是授粉受精不良 ,第二期雄花与幼果争夺养分 ,若此时养分不足 ,温度不适 ,胚发育停止会 Litchi fruit and cracked fruit are the two major problems in the production of litchi. Some countermeasures are put forward in the light of the reasons for the fruit cracking. 1 the occurrence of falling fruit litchi has three deciduous peak: First, fruit drop fruit. Thanks flower 7 ~ 10 days after a large number of young fruit mung bean off a large number of time, mainly due to poor pollination and fertilization, the second phase of male flowers and young fruit for nutrients, if not enough nutrients, temperature discomfort, embryo development will stop