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Cold-proof antifreezing water soluble fertilizer special for tea trees and preparation method and application thereof

A water-soluble fertilizer, tea tree technology, applied in the direction of application, nitrogen fertilizer, organic fertilizer, etc., can solve problems such as constraints and overwintering difficulties, and achieve the effects of preventing phase change, enhancing cell fluid concentration, and preventing or reducing freezing damage

Inactive Publication Date: 2016-08-24
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the demand for tea has increased, and tea planting areas have moved northward. However, tea trees are native to the tropics and subtropics. Introduced and cultivated in northern tea areas, it is difficult to survive the winter due to temperature constraints

Method used

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  • Cold-proof antifreezing water soluble fertilizer special for tea trees and preparation method and application thereof
  • Cold-proof antifreezing water soluble fertilizer special for tea trees and preparation method and application thereof
  • Cold-proof antifreezing water soluble fertilizer special for tea trees and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0029] Embodiment 1-6 Special cold-proof and antifreeze water-soluble fertilizer for tea trees and preparation method thereof

[0030] The formula of the special cold-proof and anti-freeze water-soluble fertilizer for tea trees prepared in Examples 1-6 is shown in Table 1.

[0031] Table 1 Formula of special cold-proof and antifreeze water-soluble fertilizer for tea trees

[0032]

[0033] Note: the values ​​in Table 1 are all in parts by weight.

Embodiment 1 and 2

[0034] The preparation method of embodiment 1 and 2 water-soluble fertilizers is as follows:

[0035] A1. Add the polyethylene glycol in the formulated amount into water at room temperature and stir. After dispersing evenly, heat up to 45°C to accelerate dissolution to obtain solution A, and cool to room temperature for use;

[0036] A2. Dissolve the formulated amount of glucose, amino acid, urea, EDTA iron, EDTA zinc, EDTA manganese and ascorbic acid in water, adjust the pH of the solution to 3-4 with dilute sulfuric acid, then add chitosan to the solution, and stir at 40°C 1.5h, obtain solution B;

[0037] A3. Mix solution A and solution B, stir for 1 hour, add water to make up to volume, filter to remove non-water-soluble impurities, and pack to obtain the finished product.

[0038] The preparation method of embodiment 3 and 4 water-soluble fertilizers is as follows:

[0039] B1. Add the polyethylene glycol in the formulated amount into water at room temperature and stir....

Embodiment 7

[0046] Embodiment 7 Application of special cold-proof and antifreeze water-soluble fertilizer for tea trees

[0047] Test object: tea tree variety 'Longjing 43'. Test location: tea tree planting in the wheat planting base of Hefei High-tech Agricultural Experimental Park.

[0048] Test plan:

[0049] Scheme one, use the water-soluble fertilizer prepared in Example 1 to spray the leaves of tea trees two days before the cold wave:

[0050] Scheme two, use the water-soluble fertilizer prepared in Example 1 to spray the leaves of tea trees one day after the cold wave:

[0051] Scheme 3, use the water-soluble fertilizer prepared in Example 1 to spray the leaves of tea trees two days before the cold wave, and topdress one day after the cold wave at the same time.

[0052] The control group was sprayed with water. Each treatment was replicated four times.

[0053] Plans 1 to 3, dilute the water-soluble fertilizer 800 times with water before spraying, and then apply 45kg / hm 2 Ap...

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Abstract

The invention provides a cold-proof antifreezing water soluble fertilizer special for tea trees and a preparation method of the water soluble fertilizer. The water soluble fertilizer is prepared from, by weight, 2-5 parts of glucose or saccharose, 2.5-7 parts of amino acid, 4-9 parts of urea, 1.5-5 parts of EDTA iron, 1-3 parts of EDTA zinc, 0.5-3 parts of EDTA manganese, 3-8 parts of fulvic acid, 1.6-3.3 parts of ascorbic acid, 30-50 parts of polyethylene glycol, 1-6 parts of chitosan and 40-57 parts of water. The water soluble fertilizer is applied to tea tree production, the number of dead leaves of tea trees can be reduced, the blade withering rate can be reduced, the content of soluble sugar can be increased, the content of free water can be reduced, and the activity of SOD enzyme and CAT enzyme in cells can be improved. The cold-proof antifreezing water soluble fertilizer ingeniously combines the nutrition function and the cold-proof function, promotes the tea trees to grow healthily and strongly and enhances the disease-resistant performance of the tea trees.

Description

technical field [0001] The invention relates to the field of tea tree planting, in particular to a special cold-proof and antifreeze water-soluble fertilizer for tea trees, its preparation method and application. Background technique [0002] Tea tree is an important economic crop in my country, and tea is also an important drink in daily life. In recent years, the demand for tea has increased, and tea tree planting areas have moved northward. However, tea trees are native to the tropics and subtropics. Introduced and cultivated in the northern tea region, it is difficult to survive the winter due to the restriction of temperature. In recent years, due to low temperature, snow disasters, late spring cold, and frequent frosts, most tea areas in my country have suffered from freezing damage in severe winters, resulting in a substantial reduction in tea production. Low temperature freezing damage has become one of the main constraints on tea production in my country. [0003]...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/02C05G3/60
CPCC05C9/00C05G3/00C05G3/60C05C11/00C05D9/02C05F11/00C05F11/02
Inventor 魏俊岭郜红建胡芹远常江章力干
Owner ANHUI AGRICULTURAL UNIVERSITY
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