乐陵市喷钙减轻金丝小枣裂果试验 A Preliminary Report on the Experiment of Spraying Calcium Reduce Jujube Fruit Cracking in Laoling City

金丝小枣是我国优质的干制枣品种，其发源地山东省乐陵市有广泛的栽培，该品种的缺点是果皮薄易裂，在乐陵市金丝小枣主产区，乐陵科技小院与当地农林部门合作于2014年5月份进行了金丝小枣相关的调研，结果显示，正常年份的裂果率为30%，多雨年份的裂果率高达80%。裂果对生产和销售都造成了严重的影响，如何防治该品种采前裂果，已成为生产上急需解决的问题。本试验探讨了叶面喷钙类物质防治金丝小枣采前裂果的效果，旨在提出减轻金丝小枣采前裂果的措施。 Ziziphus jujuba is a high-quality dried jujube variety in our country, which is widely cultivated in its birthplace Laoling city of Shandong province, but the fruits’ main defect is that its peel is very thin and easy to crack. In Laoling city, LaoLing science and technology backyard had worked with local agriculture and forestry department in May 2014 to study the Ziziphus jujuba, the results show that in the normal year, the fruit is with a cracking rate of 30%, but in a rainy year the cracking rate is as high as 80%. Cracking has caused serious influence on fruit production and sales, how to prevent the fruit from cracking before harvest has become an urgent problem. We have tested the effect of foliar spray of calcium substances to prevent the fruit from cracking before harvest, aiming to propose some measures to induce the cracking of Ziziphus jujuba.