Method for effectively preventing iron deficiency yellowtop of fruit trees

Abstract

The invention provides a method for effectively preventing fruit trees iron deficiency yellowtop, which comprises steps: high concentration leaf fertilizers are sprayed in a spring sleep late, and the high concentration leaf fertilizers are sprayed in a mature period of blades for the first time. The method for effectively preventing the fruit trees iron deficiency yellowtop prevents fruit tree yellowtop from happening by spraying different formulas of high concentration leaf fertilizers according to different radios of required iron elements of fruit trees in development stages of the fruit trees from a spring dormant period of the fruit trees, a blade mature period to a senescence phase. The method for effectively preventing the fruit trees iron deficiency yellowtop is obvious in effects, obviously reduces occurrence rate of fruit trees yellowtop, enables the fruit trees in a 0-level etiolation degree to achieve 96-97% total amount of the fruit trees, and is obvious in the prevention effect of the fruit trees yellowtop in saline areas.

Description

Technical field [0001] The invention involves a method of preventing and controlling fruit trees and yellow leaves, which belongs to the field of agricultural technology. Background technique [0002] Fruit tree yellow leaf disease, also known as yellowing or iron deficiency green disease, is a physiological disease caused by the lack of iron. Starting from the young leaves of the new shoots, the leaves turn yellow first, the leaf veins are kept green, and the green mesh pattern is green.In the later period, the whole leaves turned yellow and white, the leaves were green, and the whole leaf died and fell early. In the end, it could cause the entire tree to die, causing huge economic losses.Within my country this year, the phenomenon of iron deficiency in fruit trees is very common, and its degree is becoming more serious, especially the fruit trees planted in the west and northern and northern lime soil and the soil of coastal saline -alkali land.There are several ways to prevent...

AI Technical Summary

Problems solved by technology

Spraying foliar fertilizer is an effective way to grow strong trees, resist diseases and increase yields. The method is simple and easy to use. The fertilizer is economical and the effect is obvious. However, due to the low level of farmers' awareness, it is not possible to use iron nutrients according to the different growth stages of fruit trees. The application of different concentrations of foliar fertilizers will cause the fertilizers to fail to fully exert their effects. Generally, when spraying low-concentration foliar fertilizers, the absorption of leaves is limited, and good results cannot be achieved.

[0005] The method for preventing and treating yellow leaf disease of fruit trees in the prior art has the following defects: (1) the control effect is not obvious, and the incidence of yellow leaf disease of fruit trees is relatively high; (2) the efficiency is low and the effect is slow; Fertilizer damage occurs; (4) Blind use of foliar fertilizers results in many times of fertilization, a waste of labor, and poor results; (5) The methods are cumbersome and costly