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Preparation method of slow-release fertilizer for lotus roots

The technology of slow-release fertilizer and lotus root is applied in the field of preparation of slow-release fertilizer for lotus root, and can solve the problems of poor fertilization effect, complicated fertilization method, poor fertilizer efficiency and the like

Inactive Publication Date: 2015-11-04
CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: aiming at the problem that the fertilization effect is poor and the fertilization method is relatively complicated in the lotus root fertilization process, a method of fertilizing with coated slow-release fertilizer is provided, which effectively solves the problem of fertilizer efficiency in the lotus root fertilization process. Poor, the problem of troublesome fertilization ensures the effect of lotus root topdressing

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Take 30g of gelatin and add 100mL of water to dissolve it. After it is completely dissolved, add 900mL of water to heat and stir it to form a gelatin solution. In terms of mass percentage: take the above-mentioned 30-40% gelatin solution, 10-30% of 0.5mol / L Mix the mannan polysaccharide aqueous solution with 30-60% 1.3mol / L polyvinyl alcohol aqueous solution, heat and stir it at the same time, and when the temperature rises to 50°C, heat and stir for 5-10 minutes; take the above mixed and stirred solution 100 ~150mL, then add 20~30mL of glycerin and 3~5ml of 1g / L polysorbic acid solution, stir and mix slowly, the mixing speed is 300r / min; after the above solution is mixed, add 3~5g of crosslinking agent Make it cross-linked to form a slow-release coating material, the cross-linking agent is 50-60% dicumyl peroxide and 40-50% 2,5-dimethyl-2,5 Di-tert-butyl peroxide mixed cross-linking agent; by mass percentage, get 30-40% ammonium bicarbonate, 20-50% potassium chloride...

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PUM

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Abstract

The invention discloses a preparation method of a slow-release fertilizer for lotus roots, belonging to the technical field of fertilizer preparation. The fertilizer disclosed by the invention is prepared by mixing a slow-release coating material and a compound fertilizer according to a certain ratio, wherein the slow-release coating material is prepared from gelatin, a mannocarolose water solution, a polyvinyl alcohol solution, a polysorbate solution and a crosslinking agent; the compound fertilizer is prepared from ammonium bicarbonate, potassium chloride and calcium phosphate. The preparation method has the beneficial effects that the nutrient elements of the fertilizer in a coating can be regulated according to different growing periods and environments of crops, nutrients required by different crops can be supplied, the fertilizer can be automatically released in soil, and the validity period of the fertilizer can be up to 15-20 days; and the preparation method is simple and convenient to operate and capable of saving time and labor.

Description

technical field [0001] The invention relates to a preparation method of lotus root slow-release fertilizer, which belongs to the technical field of fertilizer preparation. Background technique [0002] Lotus root, also known as lotus root, belongs to the rhizome of lotus, which can be used for food or medicine. It is planted in Jiangsu, Zhejiang, Hubei, Shandong, Henan, Hebei, Guangdong and other places in my country. Slightly sweet and crisp, lotus root can be eaten raw or cooked, and is one of the commonly used dishes. Lotus root is also a plant with high medicinal value. Its roots, leaves, flower whiskers and fruits are all treasures, which can be nourished and used as medicine. The nutrients needed by the lotus root during its growth and development come from the photosynthesis of the lotus leaves on the one hand; Although the feces and residual bait of the fish can provide a certain amount of nutrients for the lotus root, it is very little compared with the growth de...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 雷春生高利群周丽花
Owner CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH