Effects of jujube cracking on appearance and yield control methods of jujube fruit cracking

This autumn, there is too much rain, and the jujube has entered the late stage of ripening. In order to prevent the jujube from cracking, the following measures are put forward:

Split fruit of jujube

First, select suitable varieties: when establishing the garden, select jujube varieties with crack resistance or late-maturing jujube varieties maturing after the rainy season, and jujube varieties suitable for harvesting and processing in the white ripening period, so as to avoid fruit cracking as far as possible.

Second, strengthen the tree potential and improve the ability of anti-cracking fruit: strengthen the management of soil, fertilizer and water, select comprehensive nutritious organic fertilizer, compound fertilizer, biological bacterial fertilizer, etc., and do not simply apply chemical fertilizer. In normal years, in late autumn, from fruit picking to sprouting, early application of rotten basal fertilizer, good bottom water, early flowering and young fruit stage, timely topdressing and watering; Rain Water more years, when the jujube enters the white ripening stage, it is necessary to timely drain and keep the soil loose, avoid weeds and consolidation, maintain the healthy growth of jujube trees, and improve disease resistance.

Third, spraying mineral elements and growth regulators: spraying calcium can prevent jujube from cracking. Since late July, 0.3% calcium chloride solution has been sprayed on jujube trees every 10 to 15 days until harvest, which can reduce the fruit cracking rate of jujube. Spraying calcium chloride can also reduce the loss of jujube caused by fruit cracking and decay in the process of drying and processing. Spray and control diseases and insect pests at the same time. At the same time, plant growth regulators should be used reasonably and do not spray fertilizer or medicine at noon when the sun is strong, so as to avoid the stimulation of high concentration of chemicals to jujube under high temperature.

Fourth, rain shelter cultivation: rain shelter cultivation is the most effective method to prevent cracking fruit in flat jujube orchard. Setting up a rain shelter and regulating soil moisture and air humidity through sprinkler irrigation, drip irrigation, seepage irrigation and rain-proof cloth opening and closing in the arch shed can not only reduce fruit cracking, but also reduce diseases and improve jujube commerciality. Jujube can prevent jujube from cracking by adopting rain-proof cultivation measures in mature season.