CN104130052A - Modified polyglutamic acid-coated long-acting controlled-release compound fertilizer - Google Patents

Abstract

The invention relates to the field of compound fertilizers, in particular to a modified polyglutamic acid-coated long-acting controlled-release compound fertilizer. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of diatomite of 1,250-2000 meshes, 25-28 parts of urea, 6-8 parts of magnesium chloride, 15-18 parts of ammonium bicarbonate, 10-12 parts of sodium humate, 12-15 parts of coal ash, 4-6 parts of whey powder, 1-2 parts of lactobacillus plantarum, 4-6 parts of borax, 2-4 parts of ferrous sulfate, 15-18 parts of rice-washing water, 15-18 parts of thoroughly-decomposed animal excrement, 12-13 parts of zinc oxide, 13-15 parts of cane sugar residues, 5-7 parts of peppermint leaves and stems, 12-15 parts of polyglutamic acid, 4-5 parts of polyethylene glycol diglycidyl ether, 1-2 parts of sodium dodecylbenzene sulfonate, 1-3 parts of water-proofing powder, 3-5 parts of sandworm powder and 4-5 parts of an aid. The compound fertilizer is wide in the raw material source, and is rich and diverse in nutrients; and in a production process, the nutrients are doubly coated with the diatomite and a coating agent, so that the compound fertilizer has excellent and durable coating controlled-release control ability, moisture holding ability and drought resisting ability and lasts longer in the fertilizer effect, the soil activity is not lowered, the occurrence rate of crop pests is lowered, the crop yield can be increased remarkably, and the product quality can be improved remarkably.

Description

A kind of modification polyglutamic acid coating long-acting slow-release compound fertilizers

Technical field

The present invention relates to compound manure field, be specifically related to a kind of modification polyglutamic acid coating long-acting slow-release compound fertilizers.

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 modification polyglutamic acid coating long-acting slow-release compound fertilizers, it is characterized in that, this fertilizer is made up of the raw material of following weight part: 1250-2000 order diatomite 10-15, urea 25-28, magnesium chloride 6-8, bicarbonate of ammonia 15-18, Sodium salts humic acids 10-12, flyash 12-15, whey powder 4-6, plant lactobacillus 1-2, borax 4-6, ferrous sulfate 2-4, washing water of rice 15-18, animal excrements 15-18 becomes thoroughly decomposed, zinc oxide 12-13, sugarcane bagasse 13-15, peppermint base of leaf 5-7, polyglutamic acid 12-15, Polyethylene Glycol Bisglycidyl Ether 4-5, Sodium dodecylbenzene sulfonate 1-2, water-proofing powder 1-3, sandworm powder 3-5, auxiliary agent 4-5,

Auxiliary agent is made up of the raw material of following weight part: poultry feather 14-15, nano-sized carbon 1-3, the sulphuric acid soln 30-40 of 20-30%, plam oil 8-10, polysorbate60 2-4, diatomite 25-32, magnesiumcarbonate 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 nano-sized carbon, after stirring, soak 16-20h, in the hydrolyzed solution obtaining, add appropriate magnesiumcarbonate neutralization solution pH value to 6.0-7.5, add Cuprocitrol, manganese citrate, zinc citrate, stirring reaction 2-3h, add again plam oil, polysorbate60, high-speed stirring is to complete blending dispersion, finally add diatomite, mix rear dry, make powder and get final product.

Described a kind of modification polyglutamic acid coating long-acting slow-release compound fertilizers, its production stage is as follows:

(1) sugarcane bagasse, peppermint base of leaf are mixed to rear pulverizing, add whey powder, plant lactobacillus, washing water of rice, sandworm powder, airtight shading fermentation is to becoming thoroughly decomposed completely, and the mixed fermentation material obtaining is for subsequent use;

(2) diatomite is mixed with waiting the water of weight part, grinding 20-30min, makes diatomite slurry, adds subsequently borax, ferrous sulfate, and after stirring, mixture anhydrates dryly, makes diatomite coating material;

(3) polyglutamic acid, Sodium dodecylbenzene sulfonate are mixed with appropriate water, be stirred to material and dissolve completely, solution is heated to 50-60 DEG C subsequently, adds Polyethylene Glycol Bisglycidyl Ether, water-proofing powder, continue stirring reaction 1-2h, make slow release coating agent for subsequent use;

(4) other leftover materials are mixed with step (1), (2) gained material; drop into granulation in tablets press; and spraying slow release coating agent prepared by step (3) 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 borax, ferrous sulfate etc. to contain the necessary middle trace element of plant growth and adsorb mutually, to be better coated nutrient, prevent from running off; The slow release coating agent of preparing with the raw material such as polyglutamic acid, the Polyethylene Glycol Bisglycidyl Ether hybrid reaction of water-proofing powder modification, has good lasting coated slow-release controllability and water conservation drought-resistant ability, can improve the utilization ratio of fertilizer; Composite fertilizer prepared by the present invention utilizes diatomite and slow release coating agent nutrient to be formed dual coated, nutrient is difficult for running off, fertilizer efficiency is more lasting, for crop root provides good growing environment, soil vitality is high, crop pest incidence is low, can improve significantly crop yield and quality, improves planting benefit.

Embodiment

Embodiment

The compound manure of the present embodiment by following weight part (kilogram) raw material make: 1250 order diatomite 15, urea 28, magnesium chloride 6, bicarbonate of ammonia 18, Sodium salts humic acids 10, flyash 15, whey powder 5, plant lactobacillus 2, borax 6, ferrous sulfate 2, washing water of rice 18, the animal excrements 18 of becoming thoroughly decomposed, zinc oxide 12, sugarcane bagasse 13, peppermint base of leaf 6, polyglutamic acid 15, Polyethylene Glycol Bisglycidyl Ether 5, Sodium dodecylbenzene sulfonate 2, water-proofing powder 2, sandworm powder 3, auxiliary agent 5, auxiliary agent is made up of the raw material of following weight part: poultry feather 15, nano-sized carbon 2, 30% sulphuric acid soln 40, plam oil 10, polysorbate60 4, diatomite 32, magnesiumcarbonate is appropriate, Cuprocitrol 1, manganese citrate 1, 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 nano-sized carbon, after stirring, soak 20h, in the hydrolyzed solution obtaining, add appropriate magnesiumcarbonate neutralization solution pH value to 7.0, add Cuprocitrol, manganese citrate, zinc citrate, stirring reaction 2.5h, add again plam oil, polysorbate60, high-speed stirring is to complete blending dispersion, finally add diatomite, mix rear dry, make powder and get final product.

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

(1) sugarcane bagasse, peppermint base of leaf are mixed to rear pulverizing, add whey powder, plant lactobacillus, washing water of rice, sandworm powder, airtight shading fermentation is to becoming thoroughly decomposed completely, and the mixed fermentation material obtaining is for subsequent use;

(2) diatomite is mixed with waiting the water of weight part, grinding 30min, makes diatomite slurry, adds subsequently borax, ferrous sulfate, and after stirring, mixture anhydrates dryly, makes diatomite coating material;

(3) polyglutamic acid, Sodium dodecylbenzene sulfonate are mixed with appropriate water, be stirred to material and dissolve completely, solution is heated to 50-60 DEG C subsequently, adds Polyethylene Glycol Bisglycidyl Ether, water-proofing powder, continues stirring reaction 2h, makes slow release coating agent for subsequent use;

(4) other leftover materials are mixed with step (1), (2) gained material; drop into granulation in tablets press; and spraying slow release coating agent prepared by step (3) 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 52Kg, 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 19.2% compared with control group, hundred counterpoises improve 7.6%, benefit per mu improves 17.9%, and test group soybean strain stem is sturdy, many of pods are full, disease and pest incidence is low compared with control group.

Claims (2)

1. a modification polyglutamic acid coating long-acting slow-release compound fertilizers, it is characterized in that, this fertilizer is made up of the raw material of following weight part: 1250-2000 order diatomite 10-15, urea 25-28, magnesium chloride 6-8, bicarbonate of ammonia 15-18, Sodium salts humic acids 10-12, flyash 12-15, whey powder 4-6, plant lactobacillus 1-2, borax 4-6, ferrous sulfate 2-4, washing water of rice 15-18, animal excrements 15-18 becomes thoroughly decomposed, zinc oxide 12-13, sugarcane bagasse 13-15, peppermint base of leaf 5-7, polyglutamic acid 12-15, Polyethylene Glycol Bisglycidyl Ether 4-5, Sodium dodecylbenzene sulfonate 1-2, water-proofing powder 1-3, sandworm powder 3-5, auxiliary agent 4-5,

Described auxiliary agent is made up of the raw material of following weight part: poultry feather 14-15, nano-sized carbon 1-3, the sulphuric acid soln 30-40 of 20-30%, plam oil 8-10, polysorbate60 2-4, diatomite 25-32, magnesiumcarbonate 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 nano-sized carbon, after stirring, soak 16-20h, in the hydrolyzed solution obtaining, add appropriate magnesiumcarbonate neutralization solution pH value to 6.0-7.5, add Cuprocitrol, manganese citrate, zinc citrate, stirring reaction 2-3h, add again plam oil, polysorbate60, high-speed stirring is to complete blending dispersion, finally add diatomite, mix rear dry, make powder and get final product.

2. a kind of modification polyglutamic acid coating long-acting slow-release compound fertilizers as claimed in claim 1, its production stage is as follows:

(1) sugarcane bagasse, peppermint base of leaf are mixed to rear pulverizing, add whey powder, plant lactobacillus, washing water of rice, sandworm powder, airtight shading fermentation is to becoming thoroughly decomposed completely, and the mixed fermentation material obtaining is for subsequent use;

(2) diatomite is mixed with waiting the water of weight part, grinding 20-30min, makes diatomite slurry, adds subsequently borax, ferrous sulfate, and after stirring, mixture anhydrates dryly, makes diatomite coating material;

(3) polyglutamic acid, Sodium dodecylbenzene sulfonate are mixed with appropriate water, be stirred to material and dissolve completely, solution is heated to 50-60 DEG C subsequently, adds Polyethylene Glycol Bisglycidyl Ether, water-proofing powder, continue stirring reaction 1-2h, make slow release coating agent for subsequent use;

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