Leaf surface sprayed fertilizer for pear chlorosis

Abstract

The invention discloses a leaf surface sprayed fertilizer for pear chlorosis. The fertilizer is obtained after urea, monopotassium phosphate, ferrous sulfate, magnesium sulfate, manganese sulfate, zinc sulfate and copper sulfate are mixed in a proportion. The leaf surface sprayed fertilizer provided by the invention is used for treating the pear chlorosis; after the fertilizer is sprayed to the pear garden with slight morbidity for one time, the pear garden can completely turn to green; after the fertilizer is sprayed to the pear garden with moderate morbidity for two to three times, the pear garden can completely turn to green, the leaves are thickened and the fruit growth is normal; the flower bud formation in the same year is boosted; and the sugar content of the fruit is increased to over 1.5%.

Description

technical field [0001] The invention belongs to the technical field of fruit tree disease prevention and control, and in particular relates to a foliar spray fertilizer for pear tree yellow leaf disease. Background technique [0002] Pear tree is a large fruit tree species in my country, which ranks first in the world in terms of cultivated area and total output. In recent years, my country's pear production has been more than 9 million tons per year, which is close to 50% of the world's total pear production. However, in the production of pear trees in our country. Cultivation levels in various places are uneven, and the yield and quality of fruits vary greatly. The yield per unit area ranges from several hundred kilograms to four to five thousand kilograms per mu. Among them, there are reasons for both plastic pruning and pest control. There are also reasons such as site conditions. Due to the large scope of cultivation of pear trees in our country, the site conditions ...

AI Technical Summary

Problems solved by technology

However, a large part of pear trees in our country are planted on clay soil with a sticky soil structure, and because pear trees have strong adaptability, it is difficult to achieve thorough soil improvement in orchards for pear trees planted on this part of the soil.

Due to the poor aeration of the sticky soil, a large number of trace elements in the soil cannot be converted into effective states to be absorbed and utilized by the pear tree, which causes the nutritional ratio of the fruit tree to be out of balance and the physiological disease of yellow leaves appears. Due to the yellow leaf disease, the chlorophyll content in the leaves It is greatly reduced, which in turn affects the fruit growth of the year, resulting in a decrease in fruit yield and quality.

At the same time, it also affects the formation of flower buds in that year. The traditional way to treat yellow leaf disease is to apply ferrous sulfate to the soil, which can have a certain therapeutic effect. The effect is not very satisfactory