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A kind of slow and controlled release fertilizer and its production method

A technology of slow and controlled release fertilizers and production methods, which is applied to nitrogen fertilizers, organic fertilizers, matrix fertilizers, etc. It can solve the problems of difficult to achieve harmless products, bottlenecks in product promotion, and nutrient loss, etc., to increase fertilizer and water retention performance , Promote the construction of ecological civilization and increase the content of organic matter

Active Publication Date: 2017-11-21
BEIJING INSIGHT BIOMASS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the whole, the technical level of my country's organic fertilizer industry is relatively weak, and the utilization of organic fertilizer is still at the level of simple fermentation and direct return to the field, resulting in a large amount of nutrient loss, low nutrient utilization rate, and the existing technology is difficult to use organic fertilizer. Waste is recycled and raw materials with high added value are developed. Small workshop-style organic fertilizer production enterprises often ignore the fermentation process, making it difficult to achieve harmless products, low pure nutrient content, uneven specifications, and confusing labels, resulting in bottlenecks in product promotion. , it is difficult to develop and expand

Method used

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  • A kind of slow and controlled release fertilizer and its production method
  • A kind of slow and controlled release fertilizer and its production method
  • A kind of slow and controlled release fertilizer and its production method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: the production of organic slow and controlled release potassium fertilizer

[0029] 1,200kg of peat is crushed into a powder of 60-200 meshes, the water content is kept at 8-15%, mixed evenly, and put into a disc or drum granulator. Then the pulping raffinate with a Baume degree of 30-32 and a temperature of 60-100°C is controlled by a flowmeter to 0.5-0.6m 3 / h, spray atomization at a pressure of 0.15-0.5MPa, and spray the surface of the humic acid rotating in the disc. The particles are gradually enlarged by rotation. Dry, cool and sieve to obtain particles with diameters of 1mm≤d≤2.5mm and 2.5≤d≤5mm, and pack them as products. According to NY525-2012 Organic Fertilizer Standard, the product has been determined to contain K 2 O ≥ 8%, organic matter ≥ 45%, pH 6.1.

Embodiment 2

[0030] Embodiment 2: the production of high-potassium organic slow-release fertilizer

[0031] 1,000kg of peat is crushed into a powder of 60-200 meshes, the water content is kept at 8-15%, mixed evenly, and put into a disc or drum granulator. Then the pulping raffinate liquid with a Baume degree of 30-32 and a temperature of 80°C is controlled by a flow meter to flow out 1m 3 / h, spray atomization at a pressure of 0.15-0.5MPa, and spray the surface of the humic acid rotating in the disc. The particles are gradually enlarged by rotation. Dry, cool and sieve into particles with diameters of 1mm≤d≤2.5mm and 2.5≤d≤5mm, and pack them as products. According to NY525-2012 Organic Fertilizer Standard, the product has been determined to contain K 2 O ≥ 14%, organic matter ≥ 45%, pH 8.3.

Embodiment 3

[0032] Example 3: Ternary Compound Fertilizer

[0033] 200kg of urea, 100kg of monoammonium phosphate, containing K 2 700kg of O≥8% high-potassium organic fertilizer is crushed and made into a powder of 60-200 mesh, fully mixed, stirred evenly, granulated by common methods, dried, and packaged to obtain an organic-inorganic compound fertilizer. According to GB18877-2002 National Standard for Organic-Inorganic Compound Fertilizer, it has been determined that the product contains N≥10%, P 2 o 5 ≥6%, K 2 O≥6%, organic matter≥25%.

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Abstract

The invention discloses a novel sustained and controlled release fertilizer and its production method, and belongs to the field of agrochemical production. The method comprises the following steps: carrying out mixing or surface contact on a solution rich in potassium lignite and other alkaline film forming substances, an acidic component humic acid or / and amino acids, phosphorus and other nutritional components to realize acid-base neutralization, pH adjustment, ion exchange and film formation, drying, and screening to produce the high-potassium organic sustained and controlled release fertilizer or organic-inorganic compound sustained and controlled release fertilizer with very good biocompatibility, very good fertilizer efficiency and sustained and controlled release effect The above finished product has the advantages of high fertilizer efficiency, slow leaching loss, small seepage loss in soil, substantial improvement of the output of crops, quality improvement, soil ecology recovery, and promotion of the high added value utilization of biomasses.

Description

technical field [0001] The invention relates to a novel slow-controlled release fertilizer and a production method, and belongs to the technical field of agricultural chemicals. Background technique [0002] The nutrient sources of cultivated plants are mainly various fertilizers and soil. Soil provides nutrients for plants with depletion and imbalance, and it is difficult to maintain the nutritional needs of modern agricultural cultivated plants. Therefore, fertilizer plant nutrient sources have become the main substances to regulate plant nutrition and high-quality and high-yield. Nitrogen, phosphorus, potassium and organic matter are the main sources of fertilizer plant nutrients, and plants can obtain these nutrients from nature or / and artificially applied. Fertilizer is not only the most important source of plant nutrition, but also a direct or indirect source of nutrition for various other microorganisms and animals. It is an indispensable and important basic material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
CPCC05C11/00C05F11/02C05G3/90C05G5/30C05G5/40
Inventor 孙瑞王正银尹应武张玉娟
Owner BEIJING INSIGHT BIOMASS
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