A kind of correction method of citrus iron deficiency chlorosis

An iron-deficiency and citrus technology, applied in the field of citrus iron-deficiency chlorosis correction, can solve the problems of lower net photosynthesis efficiency, difficulty in correcting citrus iron deficiency, chlorophyll content reduction, etc., to achieve long-term effective citrus iron-deficiency chlorosis, alleviate Symptoms of citrus yellow leaves, effect of increasing available iron content

Active Publication Date: 2021-10-15
CITRUS RES INST OF ZHEJIANG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of organic iron fertilizer for soil fertilization

[0032] Weighing raw materials: 50 parts of poultry manure, 50 parts of crop straw and 20 parts of ferrous sulfate;

[0033] Crush the crop straw through a 100-mesh sieve, mix it with poultry manure and ferrous sulfate, add water to adjust the water content to 30%, and then ferment for anaerobic composting at 55°C for 15 days. The product is crushed and granulated to 5-10mm, and dried at 80°C Get organic iron fertilizer A.

Embodiment 2

[0035] The preparation of the organic iron fertilizer for soil fertilization is the same as in Example 1, except that the raw materials are directly pulverized, mixed and granulated, and dried to obtain the organic iron fertilizer a without anaerobic composting and fermentation.

Embodiment 3

[0037] Preparation of chelated iron organic foliar fertilizer for foliar spraying step

[0038] Weighing raw materials: 30 parts of ferrous sulfate, 30 parts of citric acid, 0.8 parts of vitamin C, 60 parts of potassium sulfate, 80 parts of urea;

[0039] Raw materials are pulverized and passed through a 40-mesh sieve; potassium sulfate, ferrous sulfate, citric acid, vitamin C and 5 times the total amount of raw materials are mixed with water, and urea is added in 3 times under high-speed stirring conditions and stirred evenly to obtain the chelated iron organic Foliar fertilizer B;

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PUM

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Abstract

The invention discloses a treatment method for iron-deficiency yellowing of citrus. For the iron-deficiency yellowing citrus, spray fertilizer on the leaf surface first, and then carry out soil improvement. After 5-10 days of soil improvement, soil fertilization is carried out; the leaf surface is sprayed with chelated iron Fertilizer, can quickly realize the regreening of yellowed leaves, relieve the symptoms of citrus yellow leaves, use soil amendments to reduce soil alkalinity, improve soil aggregate structure, release solidified iron in the soil, and increase the effective iron content in the soil; Iron fertilizer, supplements a large amount of available iron elements to the root system in the soil, treats both internal and external, and achieves the technical purpose of long-term and effective correction of iron-deficiency chlorosis of citrus. The iron-deficiency chlorosis correction method of citrus can be effectively relieved within 15-30 days by using the method for treating citrus iron-deficiency chlorosis, and the cost is low and recurrence is not easy.

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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00A01C21/00C05G1/00C05G3/80C05G5/20
Inventor 温明霞黄贝王鹏吴韶辉
Owner CITRUS RES INST OF ZHEJIANG PROVINCE
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