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在多数枣产区,惯用木杵打枣采收,这种采收方法既费劳力,且严重损伤树体,不利于树体越冬和养分积累。同时,枣果受伤较多,易造成烂果。如果采用浓度0.03%(纯量计算)或200ppm的乙烯利水溶液(1斤40%的乙烯利加水2000斤),于红枣采收前7—8天,周密喷布枣树叶果一遍,5—6天后的果实脱落率可达98%,6—7天即能全部催落果实。喷药时溶液中加入0.2%的洗衣粉,可增加药液的沾展作用。一般成龄树每株施用药剂8—12斤。喷药时间在上午6—10时或下午4—6
In most jujube producing areas, the usual wood pestle is collected for jujube harvesting. This method of harvesting takes labor and severely damages the tree body, which is not conducive to the overwintering of trees and the accumulation of nutrients. At the same time, jujube injury more easily lead to rotten fruit. If the concentration of 0.03% (calculated by pure amount) or 200ppm ethephon aqueous solution (1 kg of 40% ethephon water 2000 kg), 7-8 days before the date of harvest, jujube tree fruit spray once again, 5-6 Days after the fruit shedding rate of up to 98%, 6-7 days that can be all the real Xinda fruit. Add 0.2% detergent solution to the solution when spraying to increase the spreading effect of the solution. The general adult tree application of pesticides 8-12 kg. Spraying time in the morning 6-10 or 4-6 pm