CN104058821A - Cony-hair-modified polyurethane coated high-efficiency slow-release compound fertilizer - Google Patents

Abstract

The invention relates to the field of compound fertilizers, particularly a cony-hair-modified polyurethane coated high-efficiency slow-release compound fertilizer. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1250-2000-mesh kieselguhr, 11-12 parts of dry wormcast, 8-10 parts of clover stover, 10-12 parts of Lemna minor, 3-4 parts of coriander seed, 4-6 parts of sodium pyrophosphate, 2-4 parts of light calcium carbonate, 2-4 parts of ferrous sulfate, 6-8 parts of yellow seriflux, 8-10 parts of wood dust ash, 10-12 parts of calcium hydrogen phosphate dihydrate, 6-8 parts of dehydrated vegetable powder, 2-4 parts of white granulated sugar, 0.1-0.3 part of ammonium persulfate, 3-4 parts of zinc sulfate, 5-6 parts of cluster redpepper leaf, 1-3 parts of silane coupling agent KH550, 0.1-0.2 part of cony hair, 20-23 parts of water-based polyurethane emulsion and 4-5 parts of assistant. The compound fertilizer has the advantages of wide raw material sources and rich and multiple nutrients, and can enhance the activity of soil; in the aspect of the production technique, the kieselguhr and cony-hair-modified polyurethane coating agent are utilized to form dual coatings on the nutrients, and thus, have favorable enduring coating slow-release control capability, so that the nutrient release is enduring and efficient, and the utilization ratio of the fertilizer is high; and the compound fertilizer can obviously enhance the crop yield and improve the product quality.

Description

A kind of rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer

Technical field

The present invention relates to compound manure field, be specifically related to a kind of rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer.

Background technology

In modern agricultural production, the figure of the composite fertilizer that is seen everywhere, it has, and nutrient content is high, minor component is few, utilization rate of fertilizer is high, the advantages such as convenient are used in storage, is promoting to play the part of important role aspect higher yield of crops stable yields.Slow-release compound fertilizer is a kind of important classification in composite fertilizer, the research emphasis of Ye Shi China Growth of Chemical Fertilizer Industry, its slowly-releasing principle is the hydrophobic substance at the coated thin layer in fertiliser granulates surface, thereby inner nutrient is discharged in soil slowly, constantly supply with nutrient to farm crop, effectively raise the utilization ratio of fertilizer.But also there is certain shortcoming in existing slow-release compound fertilizer, be mainly manifested in nutrients ratio relatively fixing, be difficult to meet the different demands of all kinds of soil and all kinds of crops; Slow release effect is not fully up to expectations, does not mate, thereby reduced fertilizer efficiency with crop growth demand, affects plant growth, causes the underproduction reduction of income.

Summary of the invention

The object of the invention is to provide the slow-release compound fertilizer of a kind of low cost, efficient, environmental protection, and to achieve these goals, the technical solution used in the present invention is as follows:

A kind of rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer, it is characterized in that, this fertilizer is made up of the raw material of following weight part: 1250-2000 order diatomite 10-15, dried earthworms excrement 11-12, alfalfa hay 8-10, duckweed 10-12, coriander seed 3-4, trisodium phosphate 4-6, light calcium carbonate 2-4, ferrous sulfate 2-4, yellow seriflux 6-8, wood chip ash 8-10, calcium phosphate dibasic dihydrate 10-12, dehydrated vegetable powder 6-8, white sugar 2-4, ammonium persulphate 0.1-0.3, zinc sulfate 3-4, cluster redpepper leaf 5-6, silane coupling agent kh550 1-3, rabbit hair 0.1-0.2, aqueous polyurethane emulsion 20-23, auxiliary agent 4-5,

Auxiliary agent is made up of the raw material of following weight part: poultry feather 12-14, nano-sized carbon 6-8, the sulphuric acid soln 30-40 of 30-40%, trisodium phosphate 1-2, gac fine powder 18-20, sodium hydroxide is appropriate, Cuprocitrol 1-2, manganese citrate 1-2, zinc citrate 1-2, preparation method is: first by the washing of poultry feather process, after high-temperature sterilization, pulverize, drop in sulphuric acid soln, add subsequently nano-sized carbon, trisodium phosphate, after stirring, soak 25-30h, in the hydrolyzed solution obtaining, add appropriate sodium hydroxide neutralization solution pH value to 6.5-7.5, and be heated to 50-70 DEG C, add Cuprocitrol, manganese citrate, zinc citrate, stirring reaction 1-2h, finally add gac fine powder, mix rear dry completely, make powder and get final product.

The solid content of described aqueous polyurethane emulsion is 30-60%.

Described a kind of rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer, its production stage is as follows:

(1) alfalfa hay, duckweed are mixed to rear pulverizing, add yellow seriflux and appropriate water, add amylase, saccharifying enzyme to carry out fermentative processing, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) coriander seed is beaten to the making beating of powder, cluster redpepper leaf for subsequent use;

(3) diatomite is mixed with waiting the water of weight part, grinding 20-30min, makes diatomite slurry, adds subsequently coriander seed powder, cluster redpepper leaf slurry, zinc sulfate, ferrous sulfate, and after stirring, mixture anhydrates dryly, makes diatomite coating material;

(4) by the rabbit hair after washing degreasing, with the stifling 15-20min of acid vapour, crushed after being dried is 500 order micro mists, with silane coupling agent kh550 mixing and stirring, adds in aqueous polyurethane emulsion, continues to stir 1-2h, makes slow release coating agent for subsequent use;

(5) other leftover materials are mixed with step (1), (2), (3) gained material; drop into granulation in tablets press; and spraying slow release coating agent prepared by step (4) at the particle surface making, the particle after coating is cooling through warm air drying, room temperature, gets product.

Beneficial effect of the present invention is: formula Raw wide material sources, take full advantage of common raw material in daily life production, and in reducing production costs, improve the single fixing phenomenon of conventional composite fertilizer nutrient; In production technique, utilize diatomite and coriander seed powder, cluster redpepper leaf slurry, zinc sulfate, ferrous sulfate etc. to have the raw material of unique promoter action to adsorb mutually to plant growth, to prevent that it runs off too early; Improve to steam rabbit hair mechanical property after treatment through degreasing, acid, polyaminoester emulsion is carried out after modification, the performances such as its moisture absorption, excreting dampness, water conservation are improved, possess good slow-release capability; It is dual coated that composite fertilizer prepared by the present invention utilizes diatomite and modified polyurethane slow release coating agent to form nutrient, and nutrient is difficult for running off, and fertilizer efficiency is more lasting, spoiled soil balance, does not improve edatope, reduces pathogenic bacterium content, and toxicological harmless is residual, can effectively improve crop yield and quality.

Embodiment

Embodiment

The compound manure of the present embodiment by following weight part (kilogram) raw material make: 2000 order diatomite 15, dried earthworms excrement 12, alfalfa hay 10, duckweed 10, coriander seed 4, trisodium phosphate 6, light calcium carbonate 4, ferrous sulfate 2, yellow seriflux 6, wood chip ash 10, calcium phosphate dibasic dihydrate 10, dehydrated vegetable powder 8, white sugar 2, ammonium persulphate 0.2, zinc sulfate 4, cluster redpepper leaf 6, silane coupling agent kh550 2, the rabbit hair 0.2, aqueous polyurethane emulsion 22, auxiliary agent 5, auxiliary agent is made up of the raw material of following weight part: poultry feather 14, nano-sized carbon 8, 40% sulphuric acid soln 40, trisodium phosphate 2, gac fine powder 20, sodium hydroxide is appropriate, Cuprocitrol 1, manganese citrate 2, zinc citrate 1, preparation method is: first by the washing of poultry feather process, after high-temperature sterilization, pulverize, drop in sulphuric acid soln, add subsequently nano-sized carbon, trisodium phosphate, after stirring, soak 30h, in the hydrolyzed solution obtaining, add appropriate sodium hydroxide neutralization solution pH value to 7.5, and be heated to 50 DEG C-70 DEG C, add Cuprocitrol, manganese citrate, zinc citrate, stirring reaction 2h, finally add gac fine powder, mix rear dry completely, make powder and get final product.

The solid content of aqueous polyurethane emulsion used is 50%

Composite fertilizer's production stage of the present embodiment is as follows:

(1) alfalfa hay, duckweed are mixed to rear pulverizing, add yellow seriflux and appropriate water, add amylase, saccharifying enzyme to carry out fermentative processing, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) coriander seed is beaten to the making beating of powder, cluster redpepper leaf for subsequent use;

(3) diatomite is mixed with waiting the water of weight part, grinding 30min, makes diatomite slurry, adds subsequently coriander seed powder, cluster redpepper leaf slurry, zinc sulfate, ferrous sulfate, and after stirring, mixture anhydrates dryly, makes diatomite coating material;

(4) by the rabbit hair after washing degreasing, with the stifling 20min of acid vapour, crushed after being dried is 500 order micro mists, with silane coupling agent kh550 mixing and stirring, adds in aqueous polyurethane emulsion, continues to stir 1.5h, makes slow release coating agent for subsequent use;

(5) other leftover materials are mixed with step (1), (2), (3) gained material; drop into granulation in tablets press; and spraying slow release coating agent prepared by step (4) at the particle surface making, the particle after coating is cooling through warm air drying, room temperature, gets product.

The present embodiment soybean planting implement, choose respectively two areas and be 3 mu experimental field, be labeled as respectively test group and control group, test group is used the present embodiment composite fertilizer, control group is used conventional composite fertilizer, all fertilizer is all as base manure applied once, the mu amount of executing is 58Kg, later stage no longer topdresses, two soybean varieties experimental field, daily administration is all identical, treat the harvest season, test group mu Yield of Soybean amount improves 24.6% compared with control group, hundred counterpoises improve 9.4%, benefit per mu improves 21.7%, and test group soybean strain stem is sturdy, many of pods are full, disease and pest incidence is low compared with control group.

Claims (3)

1. a rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer, it is characterized in that, this fertilizer is made up of the raw material of following weight part: 1250-2000 order diatomite 10-15, dried earthworms excrement 11-12, alfalfa hay 8-10, duckweed 10-12, coriander seed 3-4, trisodium phosphate 4-6, light calcium carbonate 2-4, ferrous sulfate 2-4, yellow seriflux 6-8, wood chip ash 8-10, calcium phosphate dibasic dihydrate 10-12, dehydrated vegetable powder 6-8, white sugar 2-4, ammonium persulphate 0.1-0.3, zinc sulfate 3-4, cluster redpepper leaf 5-6, silane coupling agent kh550 1-3, rabbit hair 0.1-0.2, aqueous polyurethane emulsion 20-23, auxiliary agent 4-5,

Described auxiliary agent is made up of the raw material of following weight part: poultry feather 12-14, nano-sized carbon 6-8, the sulphuric acid soln 30-40 of 30-40%, trisodium phosphate 1-2, gac fine powder 18-20, sodium hydroxide is appropriate, Cuprocitrol 1-2, manganese citrate 1-2, zinc citrate 1-2, preparation method is: first by the washing of poultry feather process, after high-temperature sterilization, pulverize, drop in sulphuric acid soln, add subsequently nano-sized carbon, trisodium phosphate, after stirring, soak 25-30h, in the hydrolyzed solution obtaining, add appropriate sodium hydroxide neutralization solution pH value to 6.5-7.5, and be heated to 50-70 DEG C, add Cuprocitrol, manganese citrate, zinc citrate, stirring reaction 1-2h, finally add gac fine powder, mix rear dry completely, make powder and get final product.

2. a kind of rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer as claimed in claim 1, is characterized in that the solid content of described aqueous polyurethane emulsion is 30-60%.

3. a kind of rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer as claimed in claim 1, its production stage is as follows:

(1) alfalfa hay, duckweed are mixed to rear pulverizing, add yellow seriflux and appropriate water, add amylase, saccharifying enzyme to carry out fermentative processing, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) coriander seed is beaten to the making beating of powder, cluster redpepper leaf for subsequent use;

(3) diatomite is mixed with waiting the water of weight part, grinding 20-30min, makes diatomite slurry, adds subsequently coriander seed powder, cluster redpepper leaf slurry, zinc sulfate, ferrous sulfate, and after stirring, mixture anhydrates dryly, makes diatomite coating material;

(4) by the rabbit hair after washing degreasing, with the stifling 15-20min of acid vapour, crushed after being dried is 500 order micro mists, with silane coupling agent kh550 mixing and stirring, adds in aqueous polyurethane emulsion, continues to stir 1-2h, makes slow release coating agent for subsequent use;

(5) other leftover materials are mixed with step (1), (2), (3) gained material; drop into granulation in tablets press; and spraying slow release coating agent prepared by step (4) at the particle surface making, the particle after coating is cooling through warm air drying, room temperature, gets product.