Color drought-resistance water-retention sustained-release compound fertilizer and method for producing same

A compound fertilizer and color technology, applied in the form of fertilizer, fertilizer mixture, fertilization device, etc., can solve the problems of large amount of ordinary water-soluble chemical fertilizers, excessive nitrate nitrogen in groundwater, and reduced water retention and water absorption capacity, etc., to improve nutrients and moisture Utilization rate, slow and stable nutrient release, and easy access to raw materials

Active Publication Date: 2010-08-04
CNSG ANHUI HONG SIFANG FERTILIZER IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mixing water-retaining agent with ordinary compound fertilizer, because the soil salt concentration is too high, it is easy to reduce its water-retaining and water-absorbing capacity
[0004] At present, the main problems in the application of chemical fertilizers are that the amount of ordinary water-soluble chemical fertilizers is large and the utilization rate is low; the second is that the use of chemical fertilizers is unreasonable, resulting in waste of resources and environmental pollution.
A large number of chemical fertilizers enter the water body and the atmosphere through volatilization, leaching, runoff, etc., leading to aggravation of the greenhouse effect, eutrophication of the water body, causing a series of problems such as algae growth, water quality deterioration, aquatic life death, and large areas of groundwater nitrate nitrogen exceeding the standard.

Method used

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  • Color drought-resistance water-retention sustained-release compound fertilizer and method for producing same
  • Color drought-resistance water-retention sustained-release compound fertilizer and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Total nutrients (N+P 2 o 5 +K 2 O) ≥ 25%, the specification is 8-10-6 (chlorine-containing) colored drought-resistant, water-retaining slow-release compound fertilizer, and the specific process steps are as follows:

[0031] (1) Weigh mineral oil, polyethylene and oil-soluble yellow according to the weight ratio of 2.5:1.0:0.05, first add mineral oil to the chemical tank to heat up, then pour polyethylene and oil-soluble yellow into it, and stir While heating the wrapping oil with steam, after the wrapping raw material is completely melted, use the oil pump to slowly add the colored wrapping oil to the heat preservation storage tank;

[0032] (2), respectively measure 11.0 parts by weight of potassium chloride (containing K 2 O-60.3%), 43.9 parts by weight superphosphate (containing P 2 o 5 -14.0%), 11.0 parts by weight of monoammonium phosphate (containing N-10.5%, containing P 2 o 5 -44.5%), 6.6 parts by weight of ammonium sulfate (containing N20.5%), 27.5 part...

Embodiment 2

[0038] Total nutrients (N+P 2 o 5 +K 2 O) ≥ 35%, the specification is 12-13-10 (chlorine-containing) colored drought-resistant water-retaining slow-release compound fertilizer, and the specific process operation steps are as follows:

[0039] (1), weigh mineral oil, polyethylene wax, natural resin and oil-soluble red in the weight ratio of 1.0: 1.2: 0.5: 0.06, first add mineral oil to heat up in the chemical feed tank, then add polyethylene wax, natural Pour the resin and oil-soluble red, and heat the wrapping oil with steam while stirring. After the wrapping raw materials are completely melted, use the oil pump to slowly add the colored wrapping oil to the heat preservation storage tank;

[0040] (2), respectively measure 19.7 parts by weight of potassium chloride (containing K 2 O-60.3%), 37.1 parts by weight of monoammonium phosphate (containing N-10.5%, containing P 2 o 5 -44.5%), 12.3 parts by weight of ammonium sulfate (containing N20.5%), 30.9 parts by weight of ammo...

Embodiment 3

[0046] Total nutrients (N+P 2 o 5 +K 2 O) ≥ 40%, the specification is 14-12-14 (chlorine-containing) colored drought-resistant water-retaining slow-release compound fertilizer, and the specific process operation steps are as follows:

[0047] (1) Weigh mineral oil, paraffin and oil soluble blue according to the weight ratio of 1.0: 1.0: 0.02, first add the mineral oil to the chemical feed tank to heat up, then pour the paraffin and oil soluble blue, and use it while stirring Steam heats the wrapping oil, and after the wrapping raw materials are completely melted, use the oil pump to slowly add the colored wrapping oil to the heat preservation storage tank;

[0048] (2), respectively measure 25.0 parts by weight of potassium chloride (containing K 2 O-60.3%), 28.7 parts by weight of monoammonium phosphate (containing N-10.5%, containing P 2 o 5 -44.5%), 12.5 parts by weight of ammonium sulfate (containing N20.5%), 20.0 parts by weight of ammonium chloride (containing N23.5...

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Abstract

The invention discloses a color drought-resistance water-retention sustained-release compound fertilizer and a method for producing the same, wherein the method comprises the followings steps of: measuring, crushing and uniformly mixing fertilizer raw materials, granulating by adopting an ammonia-acid method rotary drum granulating process, performing one-stage drying, semi-cooling and screening of grains, and sending the mixture to a coating machine; adopting a continuous melting rotary drum film-coating method coating process to perform compressed air atomization and uniform coating of color coating oil sprayed by a special nozzle; and adding a water-retaining agent and an anti-adhesive agent by a screw conveyor, and performing full stirring, cooling and packaging to obtain the finishedproducts. The color drought-resistance water-retention sustained-release compound fertilizer has the effects of drought resistance, water retention, nutrient preservation, soil condition improvement and environmental protection, and the appearance of the fertilizer has color marks; and when the fertilizer is applied to crops, the fertilizer has the advantages of increasing yield and incoming, along with simple production method, convenient operation, low cost and high benefits.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a colored drought-resistant, water-retaining, slow-release compound fertilizer and a production method thereof. Background technique [0002] China is a country with very poor water resources. The precipitation only accounts for 27% of the world's average level. my country's arid and semi-arid climate area accounts for about 51% of the country's land area, and the dry land without irrigation conditions accounts for about 65% of the 50 million hectares of cultivated land. %, 10-20 billion kilograms of grains are reduced due to drought losses every year, and direct economic losses amount to 10-20 billion yuan. The shortage of water resources has restricted the social and economic development of some places. In our country, it is difficult to fully promote engineering technologies such as sprinkler irrigation and micro-irrigation with large investment, but it is more suitable to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G5/00C05G3/80
Inventor 孙锡林罗斌谢中平束维正郑兴来樊荣琦刘洪滨王长群李莉
Owner CNSG ANHUI HONG SIFANG FERTILIZER IND CO LTD
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