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Special fertilizer for soilless culture of watermelons and melons and preparation method of special fertilizer

A technology of soilless cultivation and special fertilizer, applied in inorganic fertilizers, ammonium salt fertilizers, calcium fertilizers, etc., can solve the problems of low temperature bud rot, affecting the growth of watermelon, affecting the temperature of watermelon seedbeds, etc., to achieve the effect of increasing the temperature

Active Publication Date: 2021-03-09
WOPSUN BEIJING AGRI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the planting process of melons, they are generally planted in spring and harvested in summer. However, in the northeast region or the northern region with a large temperature difference between day and night, the temperature difference in the external environment is likely to affect the temperature of the melon seedbed. When the temperature of the seedbed is too low , prone to low-temperature rotten buds, thus affecting the growth of watermelon

Method used

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  • Special fertilizer for soilless culture of watermelons and melons and preparation method of special fertilizer
  • Special fertilizer for soilless culture of watermelons and melons and preparation method of special fertilizer
  • Special fertilizer for soilless culture of watermelons and melons and preparation method of special fertilizer

Examples

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preparation example 1

[0039] Preparation example 1: Chitosan-coated calcium oxide is prepared by the following method:

[0040] Ⅰ Weigh 4kg of chitosan, pour it into 200kg of acetic acid solution with a mass fraction of 1%, and stir for 5 minutes at a speed of 500r / min to obtain a chitosan solution; the degree of deacetylation of chitosan is 85%, and the relative molecular weight is 200,000 ;

[0041] Ⅱ Weigh 6kg of glycerin and 1.5kg of polyvinyl alcohol, mix and stir, add 1kg of glutaraldehyde, continue to stir for 0.5h, and then ultrasonically filter and defoam for 2min to obtain a chitosan film liquid;

[0042]ⅢWeigh 500kg of calcium oxide and place it in the coating machine pot, turn on the coating machine to blow air, and preheat the calcium oxide for 2min at 80°C and 20r / min; put the chitosan film solution prepared by Ⅱ in the coating machine In the liquid cup of the liquid spraying device of the clothing machine, the coating machine sprays the chitosan film liquid on the surface of calcium...

preparation example 2

[0043] Preparation example 2: Chitosan coated calcium oxide is prepared by the following method:

[0044] Ⅰ Weigh 3kg of chitosan, pour it into 180kg of acetic acid solution with a mass fraction of 1%, and stir for 3 minutes at a speed of 300r / min to obtain a chitosan solution; the degree of deacetylation of chitosan is 85%, and the relative molecular weight is 200,000 ;

[0045] ⅡWeigh 4kg of glycerin and 1kg of polyvinyl alcohol, mix and stir, add 0.5kg of glutaraldehyde, continue to stir for 0.2h, and then ultrasonically filter and defoam for 2min to obtain a chitosan film liquid;

[0046] Ⅲ Weigh 450kg of calcium oxide and place it in the pot of the coating machine, turn on the coating machine to blow air, and preheat the calcium oxide for 2 minutes at 80°C and 20r / min; put the chitosan film solution prepared by Ⅱ in the coating machine In the liquid cup of the liquid spraying device of the clothing machine, the coating machine sprays the chitosan film liquid on the surfa...

preparation example 3

[0047] Preparation example 3: Chitosan-coated calcium oxide is prepared by the following method:

[0048] Ⅰ Weigh 5kg of chitosan, pour it into 220kg of acetic acid solution with a mass fraction of 1%, and stir for 8 minutes at a speed of 600r / min to obtain a chitosan solution; the degree of deacetylation of chitosan is 85%, and the relative molecular weight is 200,000 ;

[0049] ⅡWeigh 8kg of glycerin and 2kg of polyvinyl alcohol, mix and stir, add 1.5kg of glutaraldehyde, continue to stir for 0.8h, and then ultrasonically filter and defoam for 2min to obtain a chitosan film liquid;

[0050] Ⅲ Weigh 550kg of calcium oxide and place it in the pot of the coating machine, turn on the coating machine to blow air, and preheat the calcium oxide for 2 minutes at 80°C and 20r / min; put the chitosan film solution prepared by Ⅱ in the coating machine In the liquid cup of the liquid spraying device of the clothing machine, the coating machine sprays the chitosan film liquid on the surfa...

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Abstract

The invention relates to the field of fertilizers, and particularly discloses a special fertilizer for soilless culture of watermelons and melons and a preparation method of the special fertilizer. The invention relates to the special fertilizer for soilless culture of the watermelons and melons. The special fertilizer is prepared by mixing a fertilizer A and a fertilizer B. The fertilizer A is prepared from the following raw materials in parts by weight: 6-6.8 parts of calcium nitrate tetrahydrate, 0.1-0.2 part of DTPA-Fe-6 and 3-4 parts of chitosan coated calcium oxide. The fertilizer B is prepared from the following raw materials in parts by weight: 2.4-3.0 parts of potash fertilizer, 0.6-1.1 parts of magnesium sulfate heptahydrate, 0.01-0.018 part of manganese sulfate, 0.003-0.007 partof zinc sulfate, 0.01-0.015 part of boric acid, 0.0005-0.0015 part of copper sulfate and 0.0005-0.0012 part of ammonium molybdate. The special fertilizer has the effects of properly increasing the temperature of the seedbed, avoiding the phenomenon of low-temperature-induced bud rotting of the watermelons and melons and promoting the growth of the watermelons and melons.

Description

technical field [0001] The application relates to the field of fertilizers, more specifically, it relates to a special fertilizer for watermelon soilless cultivation and a preparation method thereof. Background technique [0002] During the planting process of melons, they are generally planted in spring and harvested in summer. However, in the northeast region or the northern region with a large temperature difference between day and night, the temperature difference in the external environment is likely to affect the temperature of the melon seedbed. When the temperature of the seedbed is too low , prone to low-temperature rotten buds, which affects the growth of watermelon. Contents of the invention [0003] In order to properly increase the temperature of the seedbed when the temperature of the external environment is low, avoid the phenomenon of low-temperature rotten buds of the watermelon, and promote the growth of the watermelon; the application provides a special ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/40C05G5/30
CPCC05G3/40C05G5/30C05C3/00C05C5/04C05D1/00C05D3/02C05D5/00C05D9/02
Inventor 王永刚
Owner WOPSUN BEIJING AGRI SCI & TECH CO LTD
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