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A special fertilizer for melon soilless cultivation and preparation method thereof

A technology of soilless cultivation and special fertilizer, which is applied in the direction of inorganic fertilizer, calcium fertilizer, ammonium salt fertilizer, etc., can solve the problems of low-temperature rotten buds, affecting the growth of watermelon, and affecting the temperature of watermelon seedbed, so as to increase the temperature and promote Normal growth, balanced endothermic effect

Active Publication Date: 2022-05-24
WOPSUN BEIJING AGRI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A special fertilizer for melon soilless cultivation and preparation method thereof
  • A special fertilizer for melon soilless cultivation and preparation method thereof
  • A special fertilizer for melon soilless cultivation and preparation method thereof

Examples

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preparation example 1

[0039] Preparation Example 1: Chitosan-coated calcium oxide was 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 at a speed of 500r / min for 5min to prepare 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 defoaming for 2min to obtain chitosan membrane liquid;

[0042] Ⅲ Weigh 500kg of calcium oxide and place it in the pan of the coating machine, turn on the coating machine and blow air, and preheat the calcium oxide for 2 min under the conditions of 80°C and 20 r / min; In the liquid cup of the liquid spraying device of the coating machine, the coating machine sprays the chitosan film liquid on the surface of calcium oxide, and after natural cooling, i...

preparation example 2

[0043] Preparation Example 2: Chitosan-coated calcium oxide was 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%, stir at a speed of 300r / min for 3min to prepare a chitosan solution; the degree of deacetylation of chitosan is 85%, and the relative molecular weight is 200,000 ;

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

[0046] Ⅲ Weigh 450 kg of calcium oxide and place it in the pan of the coating machine, turn on the coating machine and blow air, and preheat the calcium oxide for 2 minutes at 80 ° C and 20 r / min; In the liquid cup of the liquid spraying device of the coating machine, the coating machine sprays the chitosan film liquid on the surface of calcium oxide, and after natural cooling, it is dried at ...

preparation example 3

[0047] Preparation Example 3: Chitosan-coated calcium oxide was 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 at 600r / min for 8min to prepare a chitosan solution; the degree of deacetylation of chitosan is 85%, and the relative molecular weight is 200,000 ;

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

[0050] Ⅲ Weigh 550kg of calcium oxide and place it in the pan of the coating machine, turn on the coating machine and blow air, and preheat the calcium oxide for 2 minutes at 80 ° C and 20 r / min; In the liquid cup of the liquid spraying device of the coating machine, the coating machine sprays the chitosan film liquid on the surface of calcium oxide, and after natural cooling, it is dried at 80 °C fo...

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Abstract

This application relates to the field of fertilizers, and specifically discloses a special fertilizer for soilless cultivation of melons and a preparation method thereof; a special fertilizer for soilless cultivation of melons, which is a mixture of fertilizer A and fertilizer B Manufacture: A fertilizer is made from raw materials containing the following parts by weight: 6-6.8 parts of calcium nitrate tetrahydrate, DTPA-Fe-60.1-0.2 parts, 3-4 parts of chitosan-coated calcium oxide; B fertilizer consists of the following Made from raw materials in parts by weight: 2.4-3.0 parts of potassium fertilizer, 0.6-1.1 parts of magnesium sulfate heptahydrate, 0.01-0.018 parts of manganese sulfate, 0.003-0.007 parts of zinc sulfate, 0.01-0.015 parts of boric acid, 0.0005-0.0015 parts of copper sulfate, molybdenum 0.0005-0.0012 parts of ammonium acid; it has the effect of appropriately increasing the temperature of the seedbed, avoiding the phenomenon of low-temperature rotten buds of watermelon, and promoting the growth of watermelon.

Description

technical field [0001] The application relates to the field of fertilizers, and more particularly, to a special fertilizer for soilless cultivation of watermelon and a preparation method thereof. Background technique [0002] In the process of planting watermelon, it is 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 can easily affect the temperature of the watermelon seedbed. When the temperature of the seedbed is too low , prone to low temperature bud rot phenomenon, thus affecting the growth of watermelon. SUMMARY OF THE INVENTION [0003] In order to properly increase the temperature of the seedbed when the external environment temperature is low, to avoid the phenomenon of low temperature rotten buds of watermelon, and to promote the growth of watermelon; the application provides a special fertil...

Claims

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Application Information

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Patent Type & Authority Patents(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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