枣树中后期从时间上划分,大体上从8月份开始到采收前,这段时间的管理重点主要是以促进果实增大,减少采前落果,减轻裂果,提高果品品质为主。一、喷施萘乙酸减少落果果实生长中、后期喷施1—2次10—20毫克/千克的萘乙酸,可有效地减少采前落果,由于萘乙酸对枣果脱落有强烈的抑制作用,由于它可以延迟纤维素酶与多聚半乳糖醛酸酶的活性,阻止离层产生,所以可抑制枣果脱落。近年来,枣农使用萘乙酸防落果时间提前,甚至于加大使用浓 Jujube in the late division from time to time, generally from August to before harvesting, this period of time mainly to promote the management of fruit increases, reducing pre-harvest fruit drop, reduce fruit cracking, improve the quality of the main fruit-based. First, the application of naphthalene acetic acid to reduce fruit drop fruit growth, the late spraying 1-2 times 10-20 mg / kg of naphthaleneacetic acid, can effectively reduce the preharvest deciduous fruit, as naphthalene acetic acid on Jujube off a strong inhibitory effect, Because it can delay the activity of cellulase and polygalacturonase, to prevent the formation of separation, it can inhibit the jujube off. In recent years, jujube farmers use naphthalene acetate anti-drop fruit ahead of time, even to increase the use of concentrated