Slow releasing fertilizer specially for Chinese goldthread and its production process

A special fertilizer and slow-release technology, which is applied in the field of Coptidis slow-release special fertilizer and its preparation, can solve the problems that it is difficult to meet the needs of plants for various nutrients, it is not suitable for Coptis chinensis special fertilizer, and the slow-release fertilizer has a single nutrient, and achieves the goal of manufacturing Simple process, low cost, good sustained-release effect

Inactive Publication Date: 2004-04-07
CHONGQING ACAD OF CHINESE MATERIA MEDICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two major problems in the slow-release fertilizers currently researched in my country. One is mainly slow-release nitrogen fertilizers, which are difficult to meet the needs of plants for various nutrients; The cost is high, and the coating material often causes secondary pollution to the environment
Obviously, these slow-release fertilizers mainly composed of inorganic fertilizers have single nutrients (only inorganic nutrients), high cost, and pollute the environment with coated substances, so they are not suitable for use as special fertilizers for coptis.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] a. According to mass ratio, urea 14g, ammonium phosphate 15g, potassium sulfate 13g, magnesium sulfate 2g, zinc sulfate 1g, stir and mix; add zeolite 10g, borax 2g, peat 14g, mix well.

[0023] b. According to the mass ratio, 18g of rapeseed meal, add 2mol / l H 2 SO 4 24g, stir evenly, act at 50°C for 60h, add 11g of bone powder, mix thoroughly, adjust the pH of the reactant to slightly acidic, equilibrate at room temperature for 24h, and dry.

[0024] c. Fully mix the two components of a and b, stir evenly, granulate, dry and pack.

Embodiment 2

[0026] a. According to mass ratio, urea 20g, ammonium phosphate 10g, potassium sulfate 18g, magnesium sulfate 1g, zinc sulfate 0.5g, stir and mix; add zeolite 8g, borax 4g, peat 14.5g, mix well.

[0027] b. According to the mass ratio, 16g of rapeseed meal, add 3mol / l H 2 SO 4 18g, stir evenly, act at 50°C for 48h, add 8g of bone powder, mix thoroughly, adjust the pH of the reactant to slightly acidic, equilibrate at room temperature for 12h, and dry.

[0028] c. Fully mix the two components of a and b, stir evenly, granulate, dry and pack.

Embodiment 3

[0030] a. According to mass ratio, urea 17g, ammonium phosphate 12g, potassium sulfate 13g, magnesium sulfate 1g, zinc sulfate 1g, stir and mix; add zeolite 10g, borax 2g, peat 16g, mix well.

[0031] b. According to the mass ratio, 20g of rapeseed meal, add 1mol / l H 2 SO 4 20g, stir evenly, act at 60°C for 72h, add 8g of bone meal, mix thoroughly, adjust the pH of the reactant to slightly acidic, equilibrate at room temperature for 20h, and dry.

[0032] c. Fully mix the two components of a and b, stir evenly, granulate, dry and pack.

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Abstract

The slow releasing fertilizer specially for Chinese goldthread is prepared with rape seed cake 16-20 wt%, bone meal 8-14 wt%, turf 14-20 wt%, zeolite 8-12 wt%, borax 2-5 wt%, urea 14-20 wt%, ammonium phosphate 10-15 wt%, potassium sulfate 13-18 wt%, magnesium sulfate 1-2 wt% and zinc sulfate 0.5-1.5 wt%. The preparation process includes mixing, pelletizing and other steps. The fertilizer is prepared with natural organic material as main components and can meet the requirement for Chinese goldthread to grow is rhizome and improve soil structure.

Description

technical field [0001] The invention relates to the technical field of novel agricultural fertilizers, in particular to a special slow-release fertilizer for coptis rhizome and a preparation method thereof. Background technique [0002] Coptis chinensis is an important perennial Chinese herbal medicine in my country. It has a long history of development, long cultivation time, high medicinal and health value, and good economic benefits. For a long time, in the artificial cultivation of Coptis chinensis, it is common to apply chemical nitrogen and phosphorus fertilizers alone to achieve high yield, which will inevitably affect the realization of the standardization of Coptis chinensis cultivation and industrialization of processing. At present, there is a lack of high-quality special fertilizers suitable for the growth characteristics of Coptis chinensis and improving the medicinal quality in the domestic market. Coptis chinensis has a long growth cycle, and there is an urge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/00C05G1/00C05G3/00
Inventor 陈仕江王正银钟国跃张浩丁季春秦松云李隆云
Owner CHONGQING ACAD OF CHINESE MATERIA MEDICA
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