Compound fertilizer with double-control netting characteristic and preparation method thereof

A technology of compound fertilizer and net capture, applied in fertilization equipment, fertilizer mixture, application, etc., can solve the problems of controlling nutrient loss, chemical fertilizer nutrient loss, inability to play the role of crop toxin precipitation and adsorption, and achieve the effect of avoiding loss and solidification

Active Publication Date: 2011-05-04
山东欧化化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the deficiency that the existing slow and controlled-release fertilizers cannot control nutrient loss, let alone precipitate and adsorb crop toxins, and provide a compound fertilizer with dual-control net-catching characteristics and a preparation method thereof. The compound fertilizer with the ch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, take 250 kilograms of monoammonium phosphate, 130 kilograms of potassium chloride, 240 kilograms of ammonium chloride, 320 kilograms of ammonium sulfate and 60 kilograms of chemical fertilizer nutrient loss control agent and put them into the mixing pot by metering for uniform stirring. Among them, porous starch 5 Kilogram, 30 kilograms of high-viscosity attapulgite clay agent, 5 kilograms of polyacrylamide, polyaluminum ferric chloride 5, 15 kilograms of activated zeolite powder; , the humidifying agent is water, the granulated material is dried, cooled and sieved, the 2.5mm ~ 4mm granules are qualified granules, and the finished product is packaged. Among them, the small particles or fine powder below 2.5mm are returned to the granulator for secondary granulation, and the large materials above 4mm are crushed by the crusher and returned to the granulator for secondary granulation. The tail gas generated in the drying and cooling process is emptied after dust re...

Embodiment 2

[0027] First, take 200 kilograms of monoammonium phosphate, 180 kilograms of potassium chloride, 320 kilograms of ammonium chloride, 240 kilograms of ammonium sulfate and 60 kilograms of chemical fertilizer nutrient loss control agent and put them into the mixing pot by metering for uniform stirring. Among them, porous starch 5 kg, 30 kg of high-viscosity attapulgite clay agent, 5 kg of polyacrylamide, 5 kg of polyaluminum ferric chloride, and 15 kg of activated zeolite powder; The agent is water or water vapor, and the granulated material is dried, cooled, and sieved. The granules with a size of 2.5mm to 4mm are qualified granules, and the finished product is packaged. Among them, the small particles or fine powder below 2.5mm are returned to the granulator for secondary granulation, and the large materials above 4mm are crushed by the crusher and returned to the granulator for secondary granulation. The tail gas generated in the drying and cooling process is emptied after du...

Embodiment 3

[0029] First, get 182 kg of monoammonium phosphate and put it in water for dissolving to make a monoammonium phosphate solution with a specific gravity of 1.25 kg / liter, then mix it with dilute sulfuric acid with a concentration of 50% to make a mixed acid solution with a specific gravity of 1.50 kg / liter; then , take 250 kg of potassium chloride, 290 kg of ammonium sulfate and 30 kg of chemical fertilizer nutrient loss control agent. Viscosity attapulgite clay agent 15 kg, polyacrylamide 2 kg, polyaluminum ferric chloride 3, activated zeolite powder 7 kg; then, the mixed acid solution is transported to the reactor with an acid pump to neutralize with ammonia gas from the ammonia station Reaction, the reactant is agglomerated and rolled on the mixed material in the granulator, and the granulated material is dried, cooled, and sieved. The 2.5mm-4mm granules are qualified granules, and the finished product is packaged. Among them, the small particles or fine powder below 2.5mm a...

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Abstract

The invention relates to a compound fertilizer with a double-control netting characteristic and a preparation method thereof. The compound fertilizer with the double-control netting characteristic consists of a fertilizer and a fertilizer nutrient lose control agent in a weight part ratio of (2-8):(80-98). The invention also provides the preparation method of the compound fertilizer with the double-control netting characteristic, which comprises the following steps of: mixing the fertilizer and the fertilizer nutrient lose control agent in the weight part ratio of (2-8):(80-98); and granulating to prepare the compound fertilizer with the double-control netting characteristic. The compound fertilizer with the double-control netting characteristic has the shape of a flocculent sponge after being dissolved in water, and has the effects of netting fertilizer nutrients, controlling nutrient loss, performing exchange absorption and precipitating harmful heavy metal at the roots of crops.

Description

technical field [0001] The invention relates to a compound fertilizer and a preparation method thereof, in particular to a compound fertilizer with double-control net-catching characteristics and a preparation method thereof. Background technique [0002] In modern agricultural production, in order to pursue the high efficiency of agriculture and rapidly promote the growth and development of crops, people greatly increase the amount of chemical fertilizers and pesticides used. However, long-term large-scale use of chemical fertilizers and pesticides will cause serious land compaction and agricultural non-point source pollution. Therefore, people are reducing the amount of chemical fertilizers and pesticides year by year. On the other hand, in order to reduce the compaction of the land, people use a large amount of organic fertilizers or organic-inorganic compound fertilizers on the ground. However, when the compaction of the land is alleviated, it is found that the pests and...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 荆小船张博哲
Owner 山东欧化化工有限公司
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