Method for synchronously preventing and controlling fruit cracking and fruit shrinking disease of ziziphus jujuba mill

Abstract

The invention discloses a method for synchronously preventing and controlling fruit cracking and a fruit shrinking disease of ziziphus jujuba mill, namely, key mineral element supplementation, chemical prevention and growth regulator application are combined. The method is characterized in that soil fertilization is carried out by mixing potassium sulfate and manganese sulfate according to a certain proportion, and sodium silicate and calcium chloride are sprayed on leaves, so that key mineral elements and beneficial elements can be effectively supplemented, nutrient balance can be regulated, and the resistance is increased; 6-BA (Benzyladenine) is sprayed on the leaves in an early stage, so that pericarpic cell division is stimulated, and elasticity of jujube peel is enhanced; NAA (Naphthalene Acetic Acid) is sprayed in a later stage, so that maturing of jujube fruits is delayed, and a cloudy and rainy period in the early of mid September is avoided; mancozeb is sprayed on the leaves, so that pathogenic bacteria on body surface can be effectively killed, a layer of dense protective medicine membrane is formed on the surface of crop, and germination and invasion of the pathogenic bacteria are inhibited. According to the method disclosed by the invention, the morbidity of the fruit cracking and the fruit shrinking disease of the ziziphus jujuba mill can be synchronously and obviously reduced, and a total diseased fruit rate can be reduced from 80 to 100 percent to 20 percent or less. A technology is applied to prevention and control of the fruit cracking and the fruit shrinking disease of the ziziphus jujuba mill, the method is simple, the cost is low, the prevention and control efficiency is high, and the effect is lasting.

Description

technical field [0001] The invention relates to a method for synchronously preventing and controlling jujube fruit cracking and fruit shrinkage diseases. Background technique [0002] Jujube (Ziziphus jujuba Mill.) is a plant of the genus Jujube in Rhamnaceae. It has become one of the five dominant economic forest tree species and the largest dry fruit tree species in my country. It has become the main source of income for 20 million farmers. However, there has been a lack of simple, practical and efficient control methods for the two major fruit diseases of jujube, fruit cracking and fruit shrinkage, which have a great impact on jujube production. [0003] Fruit cracking is the most difficult physiological disease to control jujube yield and quality. After the jujube fruit is cracked, it is perishable and deteriorates, resulting in a decline in the quality of the jujube fruit or even unedible, and it will cause a large number of fruit drop. In many jujube areas, the outpu...

AI Technical Summary

Problems solved by technology

The outstanding performances are as follows: First, the control methods are not considered comprehensive enough. The control of fruit shrinkage and cracking diseases is only considered from one or two aspects, that is, simple chemical control, fertilization, growth regulators or any combination of the two. The effect of production and application is unreasonable, especially for jujube trees with severe disease, the rate of diseased fruit cannot be significantly reduced; second, there are few studies on the simultaneous prevention and treatment of jujube fruit shrinkage disease and fruit cracking disease. In addition to being resistant to the two major fruit diseases, simultaneous prevention and control of the two major fruit diseases on susceptible varieties has not been reported yet.