Coated fertilizer for inducing root growth and preparation method and application thereof

A technology for root growth and fertilizer, applied in the application, fertilizer form, fertilizer mixture and other directions, can solve the problems such as few nutrient types, it is difficult to meet the needs of crop growth and development, the granulation process is complicated, and the slow release performance cannot be maximized. Achieve the effect of promoting photosynthesis, improving crop quality, and improving physical and chemical properties

Active Publication Date: 2013-05-15
湖南杜高生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Organic and inorganic slow-release fertilizers have been widely used. For example, the Chinese patent (publication number: CN101913949A) slow-release organic-inorganic mixed fertilizer and its preparation method. The slow-release performance of compressed tablets cannot be maximized; on the other hand, there are fewer types of nutrients and it is difficult to meet the needs of crop growth and development
Chinese patent (publication number: CN101891544A) a functional bio-organic, organic-inorganic fertilizer and its preparation method, Chinese patent (publication number: CN101519329A) an organic

Method used

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  • Coated fertilizer for inducing root growth and preparation method and application thereof
  • Coated fertilizer for inducing root growth and preparation method and application thereof
  • Coated fertilizer for inducing root growth and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Prepare the coated fertilizer that induces root growth, and the raw material components are as follows:

[0053] The total ingredients of the fertilizer core are 1000g: dry base 50g, compound amino acid powder (amino acid content ≥ 46wt%) 50g, potassium fulvic acid 50g, molasses powder 50g, potassium nitrate 150g, potassium sulfate 100g, potassium dihydrogen phosphate 150g, urea 180g, Calcium carbonate 50g, magnesium sulfate heptahydrate 100g, borax 20g, zinc sulfate heptahydrate 20g, talcum powder 30g.

[0054] The coating layer contains the following components: carboxymethyl cellulose aqueous solution (2%wt) 150g, DA-62g, fulvic acid 10g, cellulose 150g, sodium alginate solution (10%wt) 150g, saturated calcium chloride solution 100g.

[0055] The preparation method is as follows:

[0056] (1) Grinding and mixing: dry matrix, compound amino acid powder, potassium nitrate, potassium sulfate, potassium dihydrogen phosphate, urea, calcium carbonate, magnesium sulfate h...

Embodiment 2

[0062] Prepare the coated fertilizer that induces root growth, and the raw material components are as follows:

[0063] The total ingredients of the fertilizer core are 1000g: dry base 50g, compound amino acid powder (amino acid content ≥ 98wt%) 50g, potassium fulvic acid 50g, molasses powder 50g, potassium dihydrogen phosphate 50g, urea 500g, calcium sulfate 50g, magnesium sulfate heptahydrate 100g, 50g of borax, 20g of zinc sulfate heptahydrate, 30g of talcum powder.

[0064] The coating layer contains the following components: 150g of hydroxyethyl cellulose aqueous solution (5wt%), 1g of sodium nitrophenolate, 10g of fulvic acid, 150g of cellulose, 150g of sodium alginate solution (5wt%), saturated calcium chloride solution 100g.

[0065] The preparation method is as follows:

[0066] (1) Grinding and mixing: Mix dry matrix, potassium dihydrogen phosphate, urea, calcium sulfate, magnesium sulfate heptahydrate, borax, zinc sulfate heptahydrate, potassium fulvic acid, compo...

Embodiment 3

[0072] Prepare the coated fertilizer that induces root growth, and the raw material components are as follows:

[0073] The total ingredients of the fertilizer core are 1000g: dry base 75g, compound amino acid powder (amino acid content ≥ 46wt%) 25g, potassium fulvic acid 25g, molasses powder 75g, potassium nitrate 200g, potassium dihydrogen phosphate 170g, urea 200g, calcium sulfate 60g, Magnesium sulfate heptahydrate 100g, borax 20g, zinc sulfate heptahydrate 20g, talcum powder 30g.

[0074] The coating layer contains the following components: polyvinyl alcohol aqueous solution (3wt%) 200g, naphthaleneacetic acid 2g, fulvic acid 20g, bentonite 200g, sodium alginate solution (8wt%) 200g, saturated calcium chloride solution 100g.

[0075] The preparation method is as follows:

[0076] (1) Pulverization: Mix dry matrix, potassium nitrate, potassium dihydrogen phosphate, urea, calcium sulfate, magnesium sulfate heptahydrate, borax, zinc sulfate heptahydrate, potassium fulvic ac...

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Abstract

The invention discloses a coated fertilizer for inducing root growth and a preparation method and an application thereof, belonging to the field of fertilizer industry. The coated fertilizer comprises a fertilizer core and a coated layer, wherein the fertilizer core comprises organic matters, compound amino acid, humic acid materials, macroelements, secondary elements, microelements and an inorganic conditioner, the coated layer comprises a binder, a coated agent, a root system inducer, an alginate solution and a calcium ion solution. The preparation method comprises the following steps of smashing raw materials of the fertilizer core, after mixing, tabletting so as to form granulated fertilizer, spraying the binder, the coated agent mixed with the root system inducer, the alginate solution and the calcium ion solution on the granulated fertilizer sequentially so as to form a coated layer, and obtaining the coated fertilizer for inducing root growth after drying. On the one hand, the coated fertilizer can induce the root system to grow rapidly around the fertilizer due to the addition of the root system inducer, so that the fertilizer use ratio is improved; on the other hand, the fertilizer core is extruded and bonded by adopting a physical manner, so that the slow-release effect of the fertilizer core guarantees the fertilizer to be used efficiently.

Description

technical field [0001] The invention relates to the field of fertilizer industry, in particular to a coated fertilizer for inducing root growth and a preparation method thereof. Background technique [0002] Chemical fertilizers have been widely used in agriculture, but conventional quick-acting fertilizers release nutrients quickly, and the fertilizer loss rate is as high as 30-65%. On the one hand, it increases the cost, and on the other hand, it has a negative impact on the ecological environment. The non-point source pollution caused by long-term application of quick-acting fertilizers causes the greenhouse effect and eutrophication of water bodies, leading to the deterioration of the ecological environment. In order to alleviate these problems, it is necessary to improve the fertilizer's own performance, make the fertilizer nutrient release slow and urgent, and prolong the effective fertilizer utilization time, thereby increasing the fertilizer utilization rate. [000...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G5/00C05G3/80
Inventor 沈宏申守营傅友强
Owner 湖南杜高生物科技有限公司
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