CN104058820A - Slow-release compound fertilizer for enhancing soil fertility - Google Patents

Abstract

The invention relates to the field of compound fertilizers and particularly relates to a slow-release compound fertilizer for enhancing soil fertility. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1250-2000-mesh diatomite, 2-3 parts of asarum powder, 6-7 parts of peat soil, 8-10 parts of leaf mould, 3-4 parts of polyglutamic acid, 10-12 parts of bran, 0.001-0.002 part of prohexadione calcium, 6-8 parts of broad bean peel, 12-13 parts of soybean oil manufacturing leftovers, 5-8 parts of triple superphosphate, 22-25 parts of ammonium hydrogen carbonate, 15-18 parts of sulfate of potash-magnesia, 3-5 parts of zinc sulfate heptahydrate, 15-18 parts of composed manure, 2-5 parts of ferrous sulfate, 20-25 parts of diammonium hydrogen phosphate, 1-2 parts of inositol hexaphosphate, 4-5 parts of agarose, 2-3 parts of sodium dodecyl benzene sulfonate (ABS), 15-18 parts of water-based polyurethane emulsion, 1-3 parts of nano-silicon and 4-5 parts of assistant. The compound fertilizer provided by the invention is wide in source of raw materials and rich and polybasic in nutrients, and various green organic matters can adjust the soil structure so as to enhance the fertility. Diatomite and a modified polyurethane slow-release coating agent form a double coating to the nutrients, so that the fertilizer efficiency is more lasting, thus the output and quality of crops are effectively improved.

Description

A kind of slow-release compound fertilizer of promoting soil fertility

Technical field

The present invention relates to compound manure field, be specifically related to a kind of slow-release compound fertilizer of promoting soil fertility.

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 slow-release compound fertilizer of promoting soil fertility, it is characterized in that, this fertilizer is made up of the raw material of following weight part: 1250-2000 order diatomite 10-15, root of Chinese wild ginger powder 2-3, peat soil 6-7, leaf-humidified soil 8-10, polyglutamic acid 3-4, wheat bran 10-12, Prohexadione calcium 0.001-0.002, broad bean skin 6-8, soya bean oil expression tankage 12-13, double superhosphate 5-8, bicarbonate of ammonia 22-25, potassium magnesium sulfate 15-18, Zinc vitriol 3-5, muck 15-18 becomes thoroughly decomposed, ferrous sulfate 2-5, Secondary ammonium phosphate 20-25, myo-Inositol hexaphosphate 1-2, agarose 4-5, Sodium dodecylbenzene sulfonate (ABS) 2-3, aqueous polyurethane emulsion 15-18, nano-silicon 1-3, 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.

Described aqueous polyurethane emulsion solid content is 30%-55%;

Described a kind of slow-release compound fertilizer of promoting soil fertility, its production stage is as follows:

(1) wheat bran, broad bean skin, soya bean oil expression tankage are mixed to rear pulverizing, add myo-Inositol hexaphosphate and appropriate water to carry out fermentative processing, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) diatomite is mixed with the water that waits weight part, grind 20-30min, make diatomite slurry, add subsequently Prohexadione calcium, ferrous sulfate, Zinc vitriol, mix and blend 20-30min, stirs and finishes rear mixture and anhydrate dryly, makes diatomite coating material;

(3) first agarose, deionized water that polyglutamic acid is warm with appropriate 50-70 DEG C are mixed, being stirred to material dissolves completely, again nano-silicon is mixed with Sodium dodecylbenzene sulfonate (ABS), add in aqueous polyurethane emulsion together with agarose, polyglutamic acid mixed aqueous solution, be heated to 60-80 DEG C, fully stir 1-1.5h, 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, in reducing production costs, reduced the amount of chemical fertilizer, more environment-friendly high-efficiency, has improved the single fixing phenomenon of conventional composite fertilizer nutrient; In production technique, utilize diatomite and Prohexadione calcium, ferrous sulfate, Zinc vitriol etc. to have the nutrient of promoter action to adsorb mutually to plant growth, realize the coated of nutrient, prevent the invalid release of nutrient and loss; With the urethane slow release coating agent of the modifications such as agarose, polyglutamic acid, nano-silicon, there is good coated slow-release controllability, slow release effect persistent high efficiency, can ensure that crop absorbs enough nutrients in growth cycle; Composite fertilizer prepared by the present invention utilizes diatomite and modified polyurethane slow release coating agent nutrient to be formed dual coated, make fertilizer efficiency more lasting, and contain the organic composition after multiple fermentation, nutrient is more easily absorbed by crops, can promote soil fertility, not spoiled soil acid base equilibrium has been improved the growing environment of crop on source, for crop all obtains considerable raising on yield and quality.

Embodiment

Embodiment

The compound manure of the present embodiment by following weight part (kilogram) raw material make: 2000 order diatomite 15, root of Chinese wild ginger powder 2, peat soil 7, leaf-humidified soil 10, polyglutamic acid 3, wheat bran 12, Prohexadione calcium 0.002, broad bean skin 8, soya bean oil expression tankage 13, double superhosphate 5, bicarbonate of ammonia 25, potassium magnesium sulfate 15, Zinc vitriol 5, muck 18 becomes thoroughly decomposed, ferrous sulfate 5, Secondary ammonium phosphate 25, myo-Inositol hexaphosphate 1, agarose 4, Sodium dodecylbenzene sulfonate (ABS) 2, aqueous polyurethane emulsion 18, nano-silicon 2, 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 aqueous polyurethane emulsion solid content adopting is 45%;

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

(1) wheat bran, broad bean skin, soya bean oil expression tankage are mixed to rear pulverizing, add myo-Inositol hexaphosphate and appropriate water to carry out fermentative processing, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) diatomite is mixed with waiting the water of weight part, grind 30min, make diatomite slurry, add subsequently Prohexadione calcium, ferrous sulfate, Zinc vitriol, mix and blend 30min, stirring finishes rear mixture and anhydrates dryly, makes diatomite coating material;

(3) first agarose, deionized water that polyglutamic acid is warm with appropriate 50-70 DEG C are mixed, being stirred to material dissolves completely, again nano-silicon is mixed with Sodium dodecylbenzene sulfonate (ABS), add in aqueous polyurethane emulsion together with agarose, polyglutamic acid mixed aqueous solution, be heated to 60-80 DEG C, fully stir 1.5h, 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.

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 55Kg, 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 24.3% compared with control group, hundred counterpoises improve 9.2%, benefit per mu improves 21.8%, and test group soybean strain stem is sturdy, many of pods are full, disease and pest incidence is low compared with control group, soil shows good fertility.

Claims (3)

1. promote the slow-release compound fertilizer of soil fertility for one kind, it is characterized in that, this fertilizer is made up of the raw material of following weight part: 1250-2000 order diatomite 10-15, root of Chinese wild ginger powder 2-3, peat soil 6-7, leaf-humidified soil 8-10, polyglutamic acid 3-4, wheat bran 10-12, Prohexadione calcium 0.001-0.002, broad bean skin 6-8, soya bean oil expression tankage 12-13, double superhosphate 5-8, bicarbonate of ammonia 22-25, potassium magnesium sulfate 15-18, Zinc vitriol 3-5, muck 15-18 becomes thoroughly decomposed, ferrous sulfate 2-5, Secondary ammonium phosphate 20-25, myo-Inositol hexaphosphate 1-2, agarose 4-5, Sodium dodecylbenzene sulfonate (ABS) 2-3, aqueous polyurethane emulsion 15-18, nano-silicon 1-3, 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 slow-release compound fertilizer of promoting soil fertility as claimed in claim 1, is characterized in that, described aqueous polyurethane emulsion solid content is 30%-55%.

3. a kind of slow-release compound fertilizer of promoting soil fertility as claimed in claim 1, its production stage is as follows:

(1) wheat bran, broad bean skin, soya bean oil expression tankage are mixed to rear pulverizing, add myo-Inositol hexaphosphate and appropriate water to carry out fermentative processing, after extremely becoming thoroughly decomposed completely, material is for subsequent use;

(2) diatomite is mixed with the water that waits weight part, grind 20-30min, make diatomite slurry, add subsequently Prohexadione calcium, ferrous sulfate, Zinc vitriol, mix and blend 20-30min, stirs and finishes rear mixture and anhydrate dryly, makes diatomite coating material;

(3) first agarose, deionized water that polyglutamic acid is warm with appropriate 50-70 DEG C are mixed, being stirred to material dissolves completely, again nano-silicon is mixed with Sodium dodecylbenzene sulfonate (ABS), add in aqueous polyurethane emulsion together with agarose, polyglutamic acid mixed aqueous solution, be heated to 60-80 DEG C, fully stir 1-1.5h, 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.