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Granular fertilizer and method for delaying decline of tree body with Huanglongbing

A granular fertilizer and tree body technology, applied in the field of plant disease prevention and control, can solve the problems of affecting the spread of HLB, high cost, environmental pollution, etc., and achieve the effect of improving the quality of navel oranges, low cost, and reducing the content of Huanglongbing pathogens

Active Publication Date: 2022-06-03
INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, climatic and environmental conditions in citrus growing areas may affect the spread of H LB
So far, digging out diseased trees, chemical pesticides, hybridization and transgenic technology are the main strategies of the most important technologies to control HL B, but it also brings a series of problems, such as environmental pollution, long period and high cost

Method used

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  • Granular fertilizer and method for delaying decline of tree body with Huanglongbing
  • Granular fertilizer and method for delaying decline of tree body with Huanglongbing
  • Granular fertilizer and method for delaying decline of tree body with Huanglongbing

Examples

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Effect test

Embodiment 1

[0028] A slow and controlled release fertilizer, the raw materials of which include, in parts by weight: 6.58 parts of coated diammonium phosphate, 9.22 parts of granular ammonium nitrate and phosphorus, 20 parts of coated potassium nitrate, 11 parts of coated ammonium sulfate, 1.28 parts of coated urea, 5.63 parts of granular calcium carbonate, 28.75 parts of coated calcium and magnesium nitrate, 0.62 part of coated manganese sulfate monohydrate, and 0.16 part of granular manganese sulfate monohydrate.

Embodiment 2

[0030]A slow and controlled release fertilizer, the raw materials of which include, in parts by weight: 14.12 parts of coated diammonium phosphate, 8.77 parts of granular ammonium nitrate and phosphorus, 30 parts of coated potassium nitrate, 12.83 parts of coated ammonium sulfate, 10 parts of coated urea, 5.63 parts of granular calcium carbonate, 28.75 parts of coated calcium and magnesium nitrate, 3.1 parts of coated manganese sulfate monohydrate, and 0.5 part of granular manganese sulfate monohydrate.

Embodiment 3

[0032] A slow and controlled release fertilizer, the raw materials of which include, in parts by weight: 6.58 parts of coated diammonium phosphate, 9.22 parts of granular ammonium nitrate and phosphate, 20 parts of coated potassium nitrate, 11 parts of coated ammonium sulfate, 1.28 parts of coated urea, 5.63 parts of granular calcium carbonate, 28.75 parts of coated calcium and magnesium nitrate, 3.1 parts of coated manganese sulfate monohydrate, and 0.5 part of granular manganese sulfate monohydrate.

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Abstract

The invention discloses a granular fertilizer and a method for delaying decline of a tree body with Huanglongbing. The combined application amount of manganese in the raw materials of the granular fertilizer is increased by about 300%, the amount of NPK is reduced by 30-50%, and the usage amount of the granular fertilizer is 1-5 kg / plant. According to the invention, it is found that excessive application of Mn can inhibit the number of Candidatus Liberibacter asiaticum pathogens in citrus root systems, the inhibition effect is better if NPK is reduced by 30-50%, and the special fertilizer designed based on the above discovery can well achieve the effect of treating root causes, and delays decline of Candidatus Liberibacter asiaticum trees.

Description

technical field [0001] The invention belongs to the field of plant disease prevention and control, and in particular relates to a granular fertilizer and a method for delaying the decline of a huanglongbing disease tree. Background technique [0002] Citrus is one of the most economically valuable and widely grown fruits in the world. China is the most important citrus producing area in the world. However, in recent years, the soil quality of orchards has declined sharply due to unreasonable fertilization and improper agricultural management practices. Deterioration of the soil quality environment leads to a decline in plant disease resistance and outbreaks of Huanglongbing disease (HLB), with a significant decrease in citrus yield and quality. [0003] Citrus huanglongbing is the most damaging citrus disease in the world, causing huge losses to the citrus industry. It is known as the "cancer" of citrus. At present, it has endangered the major citrus producing areas in my...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/40C05G3/60C05G3/90C05G5/12C05G5/30
CPCC05B7/00C05G3/00C05G3/40C05G3/60C05G3/90C05G5/12C05G5/30C05C1/00C05C3/00C05C5/00C05C5/02C05C5/04C05C9/00C05D3/02C05D9/02Y02P60/21
Inventor 冀建华候红乾刘秀梅蓝贤瑾吕真真刘益仁
Owner INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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