Method for correcting iron deficiency yellowing of citrus

Abstract

The invention discloses a method for correcting iron deficiency yellowing of citrus. The method comprises the following steps that foliage application is carried out on iron deficiency yellowed citrus, soil is improved, and the soil is fertilized after 5-10 days of soil improvement; chelated iron fertilizer is sprayed to leaf surfaces, yellowed leaf regreening can be rapidly achieved, the citrus yellow leaf symptom is relieved, and a soil conditioner is used for reducing the soil alkalization degree, improving the soil aggregate structure, releasing solidified iron elements in soil and increasing the effective iron content in the soil; and organic iron fertilizer is applied in holes, a large amount of available iron elements are supplemented to root system parts in soil, internal and external treatment is achieved, and the technical purpose of effectively correcting iron deficiency yellowing of the citrus for a long time is achieved. By using the method for correcting iron deficiency yellowing of the citrus, the current situation of iron deficiency yellowing of the citrus can be effectively relieved within 15-30 days, the cost is low, and recurrence is not likely to happen.

Description

technical field [0001] The invention relates to the technical field of yellowing treatment of fruit trees, in particular to a treatment method for iron-deficiency yellowing of citrus. Background technique [0002] Citrus has the most important economic status and the widest cultivation area in southern my country. It is planted in many subtropical regions and countries. Most of the citrus production areas in my country are distributed in mountainous areas with poor geographical location and soil conditions. Due to serious nutrient leaching or soil Unsuitable pH makes it difficult for citrus seedlings to absorb nutrients. In recent years, the main producing areas of citrus in my country have experienced extremely common and increasingly serious symptoms of nutrient deficiency, and with the increase of fruiting years, large areas of nutrient deficiency yellowing, swollen and even bursting of leaf veins have appeared successively; in calcareous soil Iron-deficiency chlorosis is ...

AI Technical Summary

Problems solved by technology

Iron deficiency in plants directly leads to reduced chlorophyll content and subsequent reduction in net photosynthetic efficiency

Treatment of iron deficiency in citrus is difficult due to the easy conversion of iron to the ferric form, which is not available to plants, and the immobility of iron in plants, and the application of inorganic iron fertilizers to iron-deficient soils is often ineffective