How to prevent grape cracking?

How to prevent grape fruit from cracking? Do you have any tricks? Prevention and control of grape cracking fruit planting network has 7 words to teach you: supply, that is, uniform supply of water. The soil was dry in the early stage of grape fruit growth, and after entering the coloring period, there was sudden heavy rain or flood irrigation, and the soil water content increased greatly. At this stage, the sugar content in the fruit grain has gradually increased, the pulp osmotic pressure has increased, water is very easy to enter the fruit, and the rapid expansion of berries leads to fruit cracking. In order to prevent fruit cracking caused by improper soil moisture, timely irrigation during soil drought, timely drainage after rain, reducing the difference between soil dryness and humidity in different periods, ensuring balanced water supply in all periods of fruit growth, and properly reducing the occurrence of fruit cracking. Pick the heart and wipe the tip. Erase or cut off the accessory ear in time and pinch the tip of the ear to make the ear grow moderately. Thinning means to adjust the load by thinning branches and ears. Keep the leaf-fruit ratio of 15-20 to 1; the strong branches leave 2 ears of fruit, the middle branches keep 1 ear, and the weak branches leave no ears. Remove part of the spikelets before flowering in order to make the spike loose and tight, reduce the fruit grains squeezing each other and form split fruit. Spray plant growth regulators and spray water to cool down. Spraying 0.2% calcium chloride or 5000 times calcium hydroxide and 0.2% amino acid calcium 1-3 weeks before berry harvest can effectively prevent fruit cracking. If you encounter high temperature in the young fruit period of grapes, you can irrigate the orchard or spray water to the fruit trees before the high temperature comes. In case of dry weather in the later stage of fruit development, the amount of irrigation should be small and repeated as far as possible to put an end to flood irrigation. Pre-prevention of adverse weather effects. Strong winds and high temperatures in young fruit can also lead to fruit cracking. If there is a high temperature in the young fruit stage, irrigation or spraying before the high temperature can achieve the purpose of cooling and reduce the occurrence of fruit cracking. Regulation is the rational use of plant growth regulators. The early listing and seedless cultivation of grape fruit can be realized by using plant growth regulators, but the use of this regulator often causes abnormal division and enlargement of fruit granule cells, resulting in fruit cracking, especially when sprayed at improper concentration and time. Fruit cracking will be more serious. Ethephon and abscisic acid ripening agents can be used with an appropriate concentration of ethephon of 500 mg / kg and abscisic acid of 100 mg / kg, which must be used when the fruit is colored by 5% of 10%. Prevention means prevention and control of diseases and insect pests. Do a good job in the forecast of diseases and pests, grasp the key to prevention and control, and spray medicine in time. During the grape growing period, the diseases can be sprayed with 50% carbendazim wettable powder 800x, Dasheng Mmur45 and methyl topiramate 1000 times, red spiders 2500 times, aphids 3000 times, and so on. Click to see more grape planting techniques click to see more fruit planting techniques