CN104058821B - A kind of rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer - Google Patents

Abstract

The present invention relates to compound fertilizer field, be specifically related to a kind of rabbit hair modified polyurethane coating highly effective slow releasing compound fertilizer, this fertilizer is made by the raw material of following weight portion: 1250-2000 order diatomite 10-15, dried earthworms excrement 11-12, alfalfa hay 8-10, duckweed 10-12, ceriander seed 3-4, sodium pyrophosphate 4-6, precipitated 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 granulated sugar 2-4, ammonium persulfate 0.1-0.3, zinc sulfate 3-4, capsicum annum fasciculatum leaf 5-6, silane coupler kh550? 1-3, rabbit hair 0.1-0.2, aqueous polyurethane emulsion 20-23, auxiliary agent 4-5, composite fertilizer material wide material sources of the present invention, nutrient is plentiful polynary, can improve soil activation, in production technology, utilize polyurethane coated dose of diatomite and the rabbit hair modification nutrient to be formed dual coated, there is good lasting coated slow-release control ability, nutrient discharges persistent high efficiency, and utilization rate of fertilizer is high, can improve significantly crop yield and improve quality.

Description

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

Technical field

The present invention relates to compound fertilizer 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, accessory ingredient 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 crops, effectively raise the utilization rate 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 portion: 1250-2000 order diatomite 10-15, dried earthworms excrement 11-12, alfalfa hay 8-10, duckweed 10-12, ceriander seed 3-4, sodium pyrophosphate 4-6, precipitated 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 granulated sugar 2-4, ammonium persulfate 0.1-0.3, zinc sulfate 3-4, capsicum annum fasciculatum leaf 5-6, silane coupler kh5501-3, 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 portion: poultry feather 12-14, nano-sized carbon 6-8, the sulfuric acid solution 30-40 of 30-40%, sodium pyrophosphate 1-2, active carbon fine powder 18-20, NaOH is appropriate, copper citrate 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 sulfuric acid solution, add subsequently nano-sized carbon, sodium pyrophosphate, after stirring, soak 25-30h, in the hydrolyzate obtaining, add appropriate NaOH neutralization solution pH value to 6.5-7.5, and be heated to 50-70 DEG C, add copper citrate, manganese citrate, zinc citrate, stirring reaction 1-2h, finally add active carbon 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, carbohydrase to carry out fermentation process, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) ceriander seed is beaten to the making beating of powder, capsicum annum fasciculatum leaf for subsequent use;

(3) diatomite is mixed with waiting the water of weight portion, grinding 20-30min, makes diatomite slurry, adds subsequently ceriander seed powder, capsicum annum fasciculatum leaf slurry, zinc sulfate, ferrous sulfate, and after stirring, mixed material anhydrates dryly, makes diatomite clad material;

(4) by the rabbit hair after washing degreasing, with the stifling 15-20min of acid vapor, crushed after being dried is 500 order micro mists, with silane coupler 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 comminutor; and spraying slow release coating agent prepared by step (4) at the particle surface making, the particle after coating is cooling through heated-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 technology, utilize diatomite and ceriander seed powder, capsicum annum fasciculatum leaf slurry, zinc sulfate, ferrous sulfate etc. to have the raw material of unique facilitation 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 soil environment, reduces pathogenic bacteria content, and nonhazardous is residual, can effectively improve crop yield and quality.

Detailed description of the invention

Embodiment

The compound fertilizer of the present embodiment by following weight portion (kilogram) raw material make: 2000 order diatomite 15, dried earthworms excrement 12, alfalfa hay 10, duckweed 10, ceriander seed 4, sodium pyrophosphate 6, precipitated calcium carbonate 4, ferrous sulfate 2, yellow seriflux 6, wood chip ash 10, calcium phosphate dibasic dihydrate 10, dehydrated vegetable powder 8, white granulated sugar 2, ammonium persulfate 0.2, zinc sulfate 4, capsicum annum fasciculatum leaf 6, silane coupler kh5502, the rabbit hair 0.2, aqueous polyurethane emulsion 22, auxiliary agent 5, auxiliary agent is made up of the raw material of following weight portion: poultry feather 14, nano-sized carbon 8, 40% sulfuric acid solution 40, sodium pyrophosphate 2, active carbon fine powder 20, NaOH is appropriate, copper citrate 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 sulfuric acid solution, add subsequently nano-sized carbon, sodium pyrophosphate, after stirring, soak 30h, in the hydrolyzate obtaining, add appropriate NaOH neutralization solution pH value to 7.5, and be heated to 50 DEG C-70 DEG C, add copper citrate, manganese citrate, zinc citrate, stirring reaction 2h, finally add active carbon 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, carbohydrase to carry out fermentation process, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) ceriander seed is beaten to the making beating of powder, capsicum annum fasciculatum leaf for subsequent use;

(3) diatomite is mixed with waiting the water of weight portion, grinding 30min, makes diatomite slurry, adds subsequently ceriander seed powder, capsicum annum fasciculatum leaf slurry, zinc sulfate, ferrous sulfate, and after stirring, mixed material anhydrates dryly, makes diatomite clad material;

(4) by the rabbit hair after washing degreasing, with the stifling 20min of acid vapor, crushed after being dried is 500 order micro mists, with silane coupler 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 comminutor; and spraying slow release coating agent prepared by step (4) at the particle surface making, the particle after coating is cooling through heated-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 management 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 coated slow-release compound fertilizer, it is characterized in that, this fertilizer is made up of the raw material of following weight portion: 1250-2000 order diatomite 10-15, dried earthworms excrement 11-12, alfalfa hay 8-10, duckweed 10-12, ceriander seed 3-4, sodium pyrophosphate 4-6, precipitated 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 granulated sugar 2-4, ammonium persulfate 0.1-0.3, zinc sulfate 3-4, capsicum annum fasciculatum leaf 5-6, silane coupler kh5501-3, 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 portion: poultry feather 12-14, nano-sized carbon 6-8, the sulfuric acid solution 30-40 of 30-40%, sodium pyrophosphate 1-2, active carbon fine powder 18-20, NaOH is appropriate, copper citrate 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 sulfuric acid solution, add subsequently nano-sized carbon, sodium pyrophosphate, after stirring, soak 25-30h, in the hydrolyzate obtaining, add appropriate NaOH neutralization solution pH value to 6.5-7.5, and be heated to 50-70 DEG C, add copper citrate, manganese citrate, zinc citrate, stirring reaction 1-2h, finally add active carbon fine powder, mix rear dry completely, make powder and get final product.

2. a kind of rabbit hair modified polyurethane coated slow-release 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 coated slow-release 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, carbohydrase to carry out fermentation process, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) ceriander seed is beaten to the making beating of powder, capsicum annum fasciculatum leaf for subsequent use;

(3) diatomite is mixed with waiting the water of weight portion, grinding 20-30min, makes diatomite slurry, adds subsequently ceriander seed powder, capsicum annum fasciculatum leaf slurry, zinc sulfate, ferrous sulfate, and after stirring, mixed material anhydrates dryly, makes diatomite clad material;

(4) by the rabbit hair after washing degreasing, with the stifling 15-20min of acid vapor, crushed after being dried is 500 order micro mists, with silane coupler 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 comminutor; and spraying slow release coating agent prepared by step (4) at the particle surface making, the particle after coating is cooling through heated-air drying, room temperature, gets product.