Experiment on Prevention and Control of Fruit shrinkage Disease of Jujube

In recent years, the occurrence of fruit shrinkage disease of jujube is becoming more and more serious. Jujube fruit generally occurs in the white period, and often produces a large number of fallen fruits within a few days. In general, the disease occurs in the north of 5% Mui 8%. In severe cases, the diseased fruit reaches more than 30% in the north, and the taste of the diseased fruit is too bitter to eat, seriously affecting the quality and yield of jujube fruit. As there are different opinions on the disease factors in different places, our county has found that it has been only 10 years old, and there is no successful experience in the prevention and treatment of the disease. The fruit tree station has formulated an experimental scheme for the prevention and treatment of jujube fruit shrinking patients through multi-party access to data and on-the-spot observation. Good results have been achieved, and the test process is described as follows:

The main results are as follows: 1. The tested medicament: shrunk Keshen, Huafu plant growth promoter, jujube abundant active calcium.

2. Results: the effect of spurting crack Keshen is the best, the control effect is 93.3%, the effect of Penhuafu is more than 90%, and the effect of Zaofeng active calcium is lower, up to 76.6%. (the above is a general introduction, please jujube farmers do not spray randomly)

3. Summary and discussion:

The main type of soil in Jinghai area is salinized wet soil, and the PH value is more than 7. Due to the drought in recent years, the soil returns alkali seriously, and the antagonism of salt high seed destroys the normal metabolism of jujube, which makes the absorption of trace elements needed for jujube growth negative, resulting in fruit shrinkage disease. Keshen contains fulvic acid, amino acids and elements such as calcium, silicon, iron and zinc necessary for plant growth. It regulates the physiological metabolism of jujube according to the principle of equilibrium. Huafu plant growth promoter can effectively activate enzyme activity. accelerate plant metabolism, enhance photosynthesis, and contain a variety of trace elements necessary for plant growth, both of which can effectively supplement the nutrients needed for jujube growth and reduce fruit shrinkage. The active calcium of jujube is a kind of calcium fertilizer, which can not fully supplement the lack of nutrition in the growth process of jujube, so the control effect is relatively low.