Biodegradable microspheres coating fertilizer

A biodegradable and microsphere technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of difficulty in obtaining materials, high cost, and low utilization rate of fertilizers, and achieve the effect of easy availability of materials and low cost.

Inactive Publication Date: 2015-11-18
CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] China is a large agricultural country, and it is also the largest country in the use of fertilizers. The proportion of chemical fertilizers in agricultural production accounts for about 50%, but the utilization rate of fertilizers in our country is not high, only 30%, which not only leads to a huge waste of economic energy, but also causes Various environmental problems; therefore, slow and controlled-release fertilizer products have been launched in China. Controlled-release fertilizers have become the development direction of agricultural fertilizers in the future. Coating materials are also called coating fertilizers and film fertilizers. A layer of film makes the dissolution rate of fertilizer consistent with the growth demand of crops, so as to save fertilizer, improve fertilizer

Method used

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Embodiment Construction

[0015] First, select 50-70mL gelatin solution for preheating treatment. After heating up to 50-60°C and keeping it warm for 5-10 minutes, slowly drop it into 200mL liquid paraffin with a mass fraction of 3% for emulsification. The emulsification time is 20-25 minutes , the temperature is 50-60°C; after the emulsification is completed, cool it in an ice bath, and when the temperature drops to 20-30°C, add 40-60mL of glutaraldehyde for curing, and use 100mL of isopropanol for dehydration , the dehydration treatment time is 30-50min; after the dehydration is completed, wash with isopropanol for 3-4 times, dry at a temperature of 20-30°C for 15-25min, and screen it after drying, and the particle diameter is 2 ~4mm microsphere-coated particles, set aside; then according to the ratio of parts by mass, select 30-35 parts of micro-coated particles, 1-2 parts of borax, 1-2 parts of zinc sulfate, 8-11 parts of peat soil, 9- Add 12 parts of river dry sludge, 3-5 parts of magnesium oxide ...

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Abstract

The invention discloses a biodegradable microspheres coating fertilizer, which belongs to the technical field of fertilizer preparation. The biodegradable microspheres coating fertilizer comprises the following components by mass part: 30-35 parts of microspheres coating particles, 1-2 parts of borax, 1-2 parts of white copperas zinc sulfate, 8-11 parts of peat soil, 9-12 parts of river dry mud, 3-5 parts of magnesium oxide powder, 6-8 parts of powdered steatile, 20-33 parts of rock phosphate powder, and 15-25 parts of potassium ore powder. The microspheres coating fertilizer has the beneficial effect that according to different growth period and environment of crops, the microspheres coating fertilizer can adjust the nutrition element of the fertilizer in the coating for supplying the nutrition required by different crops, fertilizer dissolution rate and the growth requirement of the crops are consistent; the coating of the fertilizer can be automatically decomposed in soil, controlled release performance of the nutrient of the fertilizer can not be influenced after decomposition, cost is low, and the microspheres coating fertilizer has wide development prospect.

Description

technical field [0001] The invention relates to a biodegradable microsphere-coated fertilizer and belongs to the technical field of fertilizer preparation. Background technique [0002] China is a large agricultural country, and it is also the largest country in the use of fertilizers. The proportion of chemical fertilizers in agricultural production accounts for about 50%, but the utilization rate of fertilizers in our country is not high, only 30%, which not only leads to a huge waste of economic energy, but also causes Various environmental problems; therefore, slow and controlled-release fertilizer products have been launched in China. Controlled-release fertilizers have become the development direction of agricultural fertilizers in the future. Coating materials are also called coating fertilizers and film fertilizers. A layer of film makes the dissolution rate of fertilizer consistent with the growth demand of crops, so as to save fertilizer, improve fertilizer utiliza...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 雷春生盛艳花高利群
Owner CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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