Calcium-reinforced SOD urea fertilizer, preparation method and application thereof

A technology of calcium strengthening and urea, applied in urea compound fertilizer, application, nitrogen fertilizer, etc., can solve the problems of whole fruit rot, falling off, reducing apple yield and fruit quality, so as to promote absorption, improve insect resistance, increase yield and quality effect of effect

Active Publication Date: 2014-11-19
HEBEI XIETONG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rotten heart disease, also known as moldy heart disease, is one of the main diseases of apple cultivation. The apple fruit starts from the core

Method used

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  • Calcium-reinforced SOD urea fertilizer, preparation method and application thereof
  • Calcium-reinforced SOD urea fertilizer, preparation method and application thereof
  • Calcium-reinforced SOD urea fertilizer, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] The preparation method of calcium fortified SOD urea fertilizer comprises the following steps:

[0041] A, preparation of calcium fortified SOD synergist

[0042] Composite SOD and calcium fortifier are quantitatively mixed in the form of solution to obtain calcium fortified SOD synergist; the mass ratio of composite SOD solution to calcium fortifier solution is 8:1~15:1, preferably 8:1~12: 1;

[0043] The concentration of the composite SOD solution is 30% to 45%, and the concentration of the calcium fortifier solution is 30% to 45%;

[0044] The preparation method of the composite SOD solution is as follows: polysuccinimide is hydrolyzed in the presence of water and potassium hydroxide to obtain a polyaspartate potassium solution, the hydrolysis temperature is 50°C-80°C, and the hydrolysis time is 1.5h-5.0h; then Add acid to the polyaspartic acid potassium solution to adjust the pH to 6.5-7.0, the acid used is any one or a mixture of nitric acid, formic acid, acetic ...

Embodiment 1

[0051] 1. Preparation of raw materials

[0052] 1.1 Preparation of composite SOD solution:

[0053] The polysuccinimide is hydrolyzed in the presence of water and potassium hydroxide, the hydrolysis temperature is 50°C-80°C, and the hydrolysis time is 1.5h-5.0h, to obtain a potassium polyaspartate solution; to the potassium polyaspartate solution Add formic acid to adjust the pH of the system to 6.5 to 7.0; then add manganese chloride to the system, the amount of manganese chloride added is 1 part of manganese chloride per 100 parts by mass of potassium polyaspartate solution, and stir until the chloride Manganese is completely dissolved, and the dissolution temperature of manganese chloride is controlled at 50°C to 80°C; then the solid mass content of the system is adjusted to 30% by adding water or evaporating water to obtain a composite SOD solution;

[0054] After testing, the performance parameters of the resulting composite SOD solution are:

[0055] Active substance c...

Embodiment 2

[0078] The preparation of raw materials and the preparation of calcium-enhanced SOD urea fertilizer in Example 2 are basically the same as in Example 1, the difference being that the dosage of calcium-enhanced SOD synergist is 65Kg / ton of urea.

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Abstract

The invention discloses a calcium-reinforced SOD urea fertilizer, a preparation method and an application thereof. The calcium-reinforced SOD urea fertilizer comprises 98-99 parts by mass of urea and a calcium-reinforced SOD synergist which is composed of 0.005-1 parts by mass of a calcium reinforcing agent and 0.05-2 parts by mass of composite SOD. The calcium-reinforced SOD urea fertilizer is applied in field crops, fruit trees and vegetables, and is applied in prevention and cure of wood spot diseases and core decay diseases of the fruit trees. The calcium-reinforced SOD urea fertilizer contains SOD and Ca<2+> at the same time so that a stress resistance of a SOD urea fertilizer to crops. A lodging-resistant performance, an anti-disease performance and an insect-resistant performance of the crops are significantly enhanced. The urea fertilizer can achieve significant production increase of the crops and is reduced in application amount through improvement of a use ratio of urea. A usage amount of the fertilizer can be reduced by more than 25%.

Description

technical field [0001] The invention relates to a urea fertilizer and its preparation method and application, in particular to a calcium-enhanced SOD urea fertilizer and its preparation method and application. Background technique [0002] With the development of agricultural science and technology, functional fertilizers have been gradually developed and applied. Functional fertilizers refer to fertilizers that not only contain the nutrients necessary for crop growth, but also have other functions, such as promoting rooting of crops, improving stress resistance or disease resistance of plants, etc. Since functional fertilizers have very good effects in improving fertilizer utilization efficiency, increasing crop yield, improving the quality of agricultural products and enhancing crop stress resistance, their market size continues to expand. [0003] Chinese patent CN100418930C discloses a kind of SOD M Urea, including SOD with a mass content of 0.01-0.1% M , 99% to 99.99...

Claims

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Application Information

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IPC IPC(8): C05C9/00
Inventor 唐量董志强
Owner HEBEI XIETONG ENVIRONMENTAL PROTECTION TECH CO LTD
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