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Stable controlled-release fertilizer and production technology thereof

A technology of production technology and stability, which is applied in the field of stable loss-controlling fertilizer and its production technology, can solve the problems of difficult production of compound fertilizer, large amount of loss-controlling agent, difficulty in popularization and application, etc., and achieve comprehensive benefits of saving fertilizer and labor , save resources, improve the effect of fertilizer utilization

Inactive Publication Date: 2015-09-09
LIAONING LYUYUAN BIOLOGICAL FERTILIZER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, coated fertilizers and urea-formaldehyde fertilizers are complicated in technology, high in cost, and have certain difficulties in popularization and application; stable fertilizers can only inhibit the hydrolysis, conversion rate and process of nitrogen fertilizers such as urea; Adsorption) releases the fertilizer nutrients dissolved in the soil, and the amount of loss control agent is relatively large (generally accounting for about 10% of the fertilizer), it is difficult to produce high-content compound fertilizer

Method used

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  • Stable controlled-release fertilizer and production technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 0.1 kg of nitrification inhibitor dicyandiamide, 0.1 kg of urease inhibitor thiophosphoric triamide; 2.5 kg of loss control agent attapulgite, 0.5 kg of polyacrylamide, 0.5 kg of aluminum iron chloride; compound fertilizer (20-10 -15) 96.3 kilograms were added to the mixer respectively, and after mixing evenly, the new product of stability-controlled compound fertilizer was made through granulation, drying, screening, metering, and packaging.

Embodiment 2

[0018] 0.2 kg of nitrification inhibitor nitrogen-pyridine, 0.15 kg of urease inhibitor hydroquinone; 3 kg of loss control agent attapulgite, 0.8 kg of polyacrylamide, 0.7 kg of aluminum ferric chloride, compound fertilizer (22-12-11 ) 95.15 kg, respectively added to the mixer, mixed evenly, and then granulated, dried, sieved, measured, packaged to make a new product of stability control compound fertilizer.

Embodiment 3

[0020] 0.25 kg of nitrification inhibitor dicyandiamide, 0.2 kg of urease inhibitor thiophosphoric triamide; 3.5 kg of loss control agent attapulgite, 1 kg of polyacrylamide, 1.5 kg of aluminum ferric chloride, compound fertilizer (18-15 -12) 93.55 kg, respectively added to the mixer, fully mixed evenly, and then granulated, dried, screened, measured, and packaged to make a new product of stability-controlled compound fertilizer.

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Abstract

The invention relates to a stable controlled-release fertilizer and a production technology thereof. Inhibitor (nitrification inhibitors and urease inhibitors) for stable fertilizers and controlled-release agents (attapulgite, polyacrylamide and aluminum ferric chloride) for controlled-release fertilizers are scientifically compatible and organically combined, so that the inhibitors and the controlled-release agents play a synergistic effect. Hydrolysis and conversion of fertilizer nutrients are inhibited in the early period, and the nutrient loss is reduced through net capturing adsorption in the later period, so that a controlled-release effect in the whole process is achieved. The stable controlled-release fertilizer has the advantages of simple and convenient technology and low cost, and is suitable for national conditions and agricultural conditions, so that comprehensive benefits of yield increase, fertilizer saving and labor saving are achieved agriculturally. Moreover, the environmental pollution can be reduced, the resources are saved, and the environment-friendly and resource-saving basic state policy of zero fertilizer yield increase is met.

Description

[0001] Field [0002] The invention belongs to the technical field of slow-release and loss-controlling fertilizers, in particular to a stable and loss-controlling fertilizer and a production process thereof. technical background [0003] Fertilizers play an important role in agricultural production. my country is a big country in fertilizer production and application, and its output and consumption are the first in the world. However, the application amount is high and the utilization rate is low, which not only wastes resources but also pollutes the environment, which is far from the resource-saving and environment-friendly industry requirements advocated by our country. At present, the relevant departments of our country have proposed a zero-growth plan for chemical fertilizers, that is, the output of chemical fertilizers will not increase before 2020, and the utilization rate will increase by one percentage point every year. From the current 35% to 40%, for this purpose,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/08C05G3/90
CPCY02P60/21
Inventor 西浩源杜志刚曹忠文白雪峰曹承绵
Owner LIAONING LYUYUAN BIOLOGICAL FERTILIZER
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