CN103524218A - Soil improvement type soybean dedicated sustained-release fertilizer and preparation method thereof - Google Patents
Soil improvement type soybean dedicated sustained-release fertilizer and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a soil improvement type soybean dedicated sustained-release fertilizer comprising the following components by the weight percentage: 20-36% of urea, 20-36% of urea phosphate, 10-20% of potassium chloride, 10-20% of a magnesium potassium sulfate fertilizer, 1-6% of humic acid calcium, 2-7% of humic acid magnesium, 2-8% of humic acid boron, 1-6% of humic acid sodium, 0.005-0.02% of sodium nitrophenolate, 1-5% of a sustained-release agent, and 3-8% of an auxiliary material. The sustained-release agent comprises the following components by the weight percentage: 5-15% of N-hydroxymethyl acrylamide, 10-30% of unsaturated polyester resin, 4-10% of cyclohexanol, 5-13% of 2-butyl alcohol, 1-5% of a talc powder, 1-4% of kaolin, 1-6% of ethyl cellulose, and the balance being distilled water. The invention also discloses a preparation method for the soil improvement type soybean dedicated sustained-release fertilizer.
Description
Technical field
The present invention relates to technical field of agricultural fertilizers, relate in particular to a kind of soil improvement type soybean Special slow release fertilizer and preparation method thereof.
Background technology
China food crop and cash crop cultivated area maintain more than 1,500,000,000 mu throughout the year, but China's arable soil fertility level integral body is on the low side, the phenomenon such as soil acidification and salinization is very outstanding, according to statistics, the saline-alkali wasteland of NORTHWEST CHINA, northeast and coastal region and saline and alkaline obstacle total cultivated area surpass 500,000,000 mu, wherein have nearly 200,000,000 mu of agricultural use potentiality; China's soil acidification is also very serious, and approximately there are 2.26 hundred million mu of arable soil pH values in the whole nation in below 5.5, south, eastern region arable soil acidifying aggravation, and acidifying area have gradually increase, trend that acidizing degree has further intensification.In addition, along with quickening is reversed in China rural holding, emerge increasing farming rich and influential family, agricultural is just fast-developing towards industrialization direction.Add that China peasant goes down town and works in a large number; cause that the between twenty and fifty labor force's in rural area is in short supply; cause in mass-producing agriculture production human cost to increase, especially large farm crop need to repeatedly be applied fertilizer, and not only time-consuming, plant growth manuring late inconvenience, production cost increase.China is populous, and average cultivated area is very limited, protects existing arable land, improves and utilize obstacle soil significant; In the production process of agricultural-food, for promoting volume increase, need to use chemical fertilizer, yet, existing common chemical fertilizer, after long-term a large amount of use, can cause soil physico-chemical property variation, simultaneously, existing common chemical fertilizer can not slowly discharge nutrient, and nutrient proportioning is unreasonable, middle micro-mismatch, cause crop quality and output to be restricted to a certain extent and fertilizer nutrient utilization ratio low, contaminate environment, urgently improves.
Summary of the invention
The problem existing for prior art, the object of the invention is to propose a kind of soil improvement type soybean Special slow release fertilizer and preparation method thereof, after described soil improvement type soybean Special slow release fertilizer is used, can improve soil physicochemical property, improve organic content, general equilibrium is supplied with soybean nutrient, nutritive element discharges to be coordinated lastingly, significantly improve soybean yields, improve soybean quality, there is obvious economic benefit.
A kind of soil improvement type soybean Special slow release fertilizer, comprise by weight percentage following component: urea 20～36%, Ureaphil 20～36%, Repone K 10～20%, potash magnesium sulphate fertilizer 10～20%, calcium humate 1～6%, humic acids magnesium 2～7%, humic acids boron 2～8%, Sodium salts humic acids 1～6%, sodium nitrophenolate 0.005～0.02%, sustained release dosage 1～5%, auxiliary material 3～8%;
Wherein, described sustained release dosage comprises following component by weight percentage: N hydroxymethyl acrylamide 5～15%, unsaturated polyester resin 10～30%, hexalin 4～10%, 2-butanols 5～13%, talcum powder 1～5%, kaolin 1～4%, ethyl cellulose 1～6%, surplus is distilled water.
In specific embodiment, the content of described urea can be 20%, 23%, 30%, 33%, 36%, the content of described Ureaphil can be 20%, 24%, 31%, 36%, the content of described Repone K can be 10%, 14%, 18%, 20%, the content of described potash magnesium sulphate fertilizer can be 10%, 15%, 17%, 20%, the content of described calcium humate can be 1%, 3%, 6%, the content of described Humic acid Magnesium can be 2%, 4%, 6%, 7%, the content of described humic acid boron can be 2%, 5%, 7%, 8%, the content of described sodium humate can be 1%, 3%, 5%, 6%, the content of described sodium nitrophenolate can be 0.005%, 0.013%, 0.02%, described sustained release dosage content can be 1%, 3%, 5%, the content of described auxiliary material can be 3%, 5%, 8%.
Preferably, described urea is agramon.
Preferably, described auxiliary material is modification Tapioca Starch.
Preferably, in described soil improvement type soybean Special slow release fertilizer, the mass ratio of nitrogen, phosphorus, three kinds of elements of potassium is (15～20): (10～15): (8～12), and N+P
2o
5+ K
2o>=40%.
Preferably, in described soil improvement type soybean Special slow release fertilizer, the mass ratio of nitrogen, phosphorus, three kinds of elements of potassium is 9:6:5, and N+P
2o
5+ K
2o>=40%.
In technique scheme, described soil improvement type soybean Special slow release fertilizer comprises following component by weight percentage: urea 25～30%, Ureaphil 25～30%, Repone K 12～20%, potash magnesium sulphate fertilizer 11～15%, calcium humate 2～5%, humic acids magnesium 3～5%, humic acids boron 2～5%, Sodium salts humic acids 1～3%, sodium nitrophenolate 0.01～0.02%, sustained release dosage 1～3%, auxiliary material 4～6%.
In technique scheme, described sustained release dosage adopts following steps to make:
S1, by proportioning, in reactor, add distilled water, be heated to 90～95 ℃, then add the N hydroxymethyl acrylamide of proportioning, with ammoniacal liquor regulator solution pH value to 8～9, be constantly stirred to dissolving completely; When temperature is down to and keep 80～90 ℃, add the unsaturated polyester resin of proportioning, be constantly stirred to completely and dissolve, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtain solution B;
S3, described solution B is added in described solution A and stirred, wherein temperature is 75～90 ℃, and the reaction times is 1～1.5h, obtains solution C;
S4, to the ethyl cellulose that adds proportioning in described solution C, stir, wherein temperature is 70～95 ℃ of left and right, the reaction times is 30～60min minute, cooling, obtains sustained release dosage.
Preferably, in step S1, to reactor, add distilled water after described temperature be heated to 93 ℃, by described ammoniacal liquor regulator solution pH value to 8.4, when temperature is down to and keep 86 ℃, add the described unsaturated polyester resin of proportioning; In step S3, described temperature is 80 ℃, and the described reaction times is 1.2h; In step S4, described temperature is 90 ℃, and the described reaction times is 40min.
The preparation method who the invention allows for the soil improvement type soybean Special slow release fertilizer described in a kind of basis, comprises the steps:
S1, by proportioning will urea and Ureaphil drop in stirrer and stir, then deliver to that in melting tank, microwave heating is to being molten state, wherein temperature is 135～145 ℃;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, auxiliary material are dropped into stirrer and stir, then deliver in microwave fertilizer drying machine and be heated to 50～70 ℃, drop into described in step S1 in melting tank and stir into slurry by agitator;
S3, described slurry is delivered in tablets press and carried out granulation, described tablets press rotating speed is 25～30rpm, forms fertiliser granulates;
S4, that described fertiliser granulates is delivered to cooler is cooling, when temperature, is down to after 50～60 ℃, delivers in sustained release dosage coating machine and uses the sustained release dosage of proportioning to carry out coating, and described sustained release dosage coating machine rotating speed is 10～15rpm;
S5, will with air compressor, dispel through the fertiliser granulates of coating, obtain the particulate state fertilizer disperseing;
S6, described particulate state fertilizer is delivered to another microwave fertilizer drying machine dry;
S7, the particulate state fertilizer of oven dry is delivered in oil-like anti-caking agent packing machine and sprayed oil-like anti-caking agent, described oil-like anti-caking agent packing machine rotating speed is 10～15rpm, obtains soil improvement type soybean Special slow release fertilizer.
Preferably, in step S1, described temperature is 140 ℃; In step S2, in described microwave fertilizer drying machine, be heated to 65 ℃; In step S4, described temperature is reduced to 55 ℃.
Wherein, in above-mentioned preparation method, the detailed technology scheme in each step is as follows:
S1, by proportioning, urea and Ureaphil are dropped into vertical stirrer and stir, by movable variable frequency type transfer roller, be delivered to melting tank, microwave heating to 135～145 are ℃ to being molten state;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, auxiliary material are dropped into horizontal mixer and stir, through movable variable frequency type transfer roller, be delivered to microwave heating to 50～70 ℃ in microwave fertilizer drying machine, described in input step S1, in melting tank, by agitator, stir and form slip;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, through metering topping-up pump pressurized jet, to tablets press inwall, along with the rotation of tablets press, form fertiliser granulates, and described tablets press rotating speed is 25～30rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, be cooled to after 50～60 ℃, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, at described sustained release dosage coating machine inlet section center, be provided with from the spray sustained release dosage pipeline that stretches into described sustained release dosage coating machine inlet section of sustained release dosage reactor bottom access, on described spray sustained release dosage pipeline, rotatable nozzle is installed, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, by described rotatable nozzle, being vaporific is sprayed on described fertiliser granulates, rotation along with described sustained release dosage coating machine, form the complete coating of described fertiliser granulates, described sustained release dosage coating machine rotating speed is 10～15rpm,
S5, on described sustained release dosage coating machine outlet section top, the jet pipe that stretches into described sustained release dosage coating machine outlet section accessing from air compressor is installed, the air spraying from described jet pipe dispels the fertiliser granulates after coating;
S6, the fertiliser granulates making is dried, solidified by another microwave fertilizer drying machine;
S7, fertiliser granulates after coating solidifies is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, at described oil-like anti-caking agent packing machine center, be provided with and from oil-like anti-caking agent cylinder, stretch into the jet pipe in described oil-like anti-caking agent packing machine, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidifies by the eyelet distributing on described jet pipe, wherein said oil-like anti-caking agent packing machine rotating speed is 10～15rpm, obtain soil improvement type soybean Special slow release fertilizer, by screening distributor, sieve, packing warehouse-in.
Soil improvement type soybean Special slow release fertilizer of the present invention contains the necessary macroelement of soybeans they grow such as abundant nitrogen, phosphorus, potassium, science has been added Meso-and micro-nutrients and the beneficial elements such as calcium, magnesium, boron, sodium simultaneously, make soybean to the absorption of nutrient general equilibrium more, be conducive to strengthen photosynthesis and the drought resisting disease and insect resistance lodging tolerance of soybean, improve the quality and yield of soybean; This product can slowly discharge nutritive element enduringly in conjunction with growth characteristics and the regulation of fertilizer requirement of soybean, effective release period of nutrient in fertilizer is extended, thereby meet the soybeans they grow middle and later periods for the demand of nutrient, avoids early ageing and de-fertile; This product can meet the soybean whole breeding time of the demand to nutrient as disposable the applying of base manure, compares the conventional fertilizer of application, within the whole breeding time of soybean, apply fertilizer 3～4 times even more, there is saving of labor, save time and utilization rate of fertilizer advantages of higher; This product has improvement and fertilization effect to soil, main manifestations is for reducing the soil weight, increase soil permeability, reduce or improve soil acidity or alkalinity, increase soil organic matter content, can reduce soil to phosphorus fixation, increase the movement of phosphorus in soil and stimulate the absorption of crop to phosphorus, reduce the probability that potassium ion is fixed by lattice, extend the fertilizer efficiency of potassium.Soil improvement type soybean Special slow release fertilizer prepared by the present invention is applicable to soybean planting on the obstacle soil such as China soybean producing region and acid-alkali salt and uses.
Embodiment
Embodiment 1
A kind of soil improvement type soybean Special slow release fertilizer, comprise by weight percentage following component: urea 20%, Ureaphil 32.495%, Repone K 13%, potash magnesium sulphate fertilizer 15%, calcium humate 2%, humic acids magnesium 3%, humic acids boron 2%, Sodium salts humic acids 4%, sodium nitrophenolate 0.005%, sustained release dosage 5%, modification Tapioca Starch 3.5%;
Wherein, described sustained release dosage comprises following component by weight percentage: N hydroxymethyl acrylamide 15%, and unsaturated polyester resin 10%, hexalin 10%, 2-butanols 5%, talcum powder 5%, kaolin 1%, ethyl cellulose 6%, surplus is distilled water.
Described sustained release dosage adopts following steps to make:
S1, by proportioning, in reactor, add distilled water, be heated to 95 ℃, then add the N hydroxymethyl acrylamide of proportioning, by ammoniacal liquor regulator solution pH value to 8, be constantly stirred to dissolving completely; When temperature is down to and keep 90 ℃, add the unsaturated polyester resin of proportioning, be constantly stirred to completely and dissolve, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtain solution B;
S3, described solution B is added in described solution A and stirred, wherein temperature is 75 ℃, and the reaction times is 1.5h, obtains solution C;
S4, to the ethyl cellulose that adds proportioning in described solution C, stir, wherein temperature is 70 ℃ of left and right, the reaction times is 60min minute, cooling, obtains sustained release dosage.
The preparation method of the soybean of soil improvement type described in the present embodiment Special slow release fertilizer, comprises the steps:
S1, by proportioning, urea and Ureaphil are dropped into vertical stirrer and stir, by movable variable frequency type transfer roller, be delivered to melting tank, microwave heating to 135 is ℃ to being molten state;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch are dropped into horizontal mixer and stir, through movable variable frequency type transfer roller, be delivered to microwave heating to 70 ℃ in microwave fertilizer drying machine, described in input step S1, in melting tank, by agitator, stir and form slip;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, through metering topping-up pump pressurized jet, to tablets press inwall, along with the rotation of tablets press, form fertiliser granulates, and described tablets press rotating speed is 30rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, be cooled to after 60 ℃, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, at described sustained release dosage coating machine inlet section center, be provided with from the spray sustained release dosage pipeline that stretches into described sustained release dosage coating machine inlet section of sustained release dosage reactor bottom access, on described spray sustained release dosage pipeline, rotatable nozzle is installed, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, by described rotatable nozzle, being vaporific is sprayed on described fertiliser granulates, rotation along with described sustained release dosage coating machine, form the complete coating of described fertiliser granulates, described sustained release dosage coating machine rotating speed is 15rpm,
S5, on described sustained release dosage coating machine outlet section top, the jet pipe that stretches into described sustained release dosage coating machine outlet section accessing from air compressor is installed, the air spraying from described jet pipe dispels the fertiliser granulates after coating;
S6, the fertiliser granulates making is dried, solidified by another microwave fertilizer drying machine;
S7, fertiliser granulates after coating solidifies is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, at described oil-like anti-caking agent packing machine center, be provided with and from oil-like anti-caking agent cylinder, stretch into the jet pipe in described oil-like anti-caking agent packing machine, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidifies by the eyelet distributing on described jet pipe, wherein said oil-like anti-caking agent packing machine rotating speed is 15rpm, obtain soil improvement type soybean Special slow release fertilizer, by screening distributor, sieve, packing warehouse-in.
Embodiment 2
A kind of soil improvement type soybean Special slow release fertilizer, comprise by weight percentage following component: agramon 26%, Ureaphil 20.98%, Repone K 10%, potash magnesium sulphate fertilizer 12%, calcium humate 1%, humic acids magnesium 6%, humic acids boron 7%, Sodium salts humic acids 5%, sodium nitrophenolate 0.02%, sustained release dosage 4%, modification Tapioca Starch 8%;
Wherein, described sustained release dosage comprises following component by weight percentage: N hydroxymethyl acrylamide 5%, and unsaturated polyester resin 30%, hexalin 4%, 2-butanols 13%, talcum powder 1%, kaolin 4%, ethyl cellulose 1%, surplus is distilled water.
Described sustained release dosage adopts following steps to make:
S1, by proportioning, in reactor, add distilled water, be heated to 90 ℃, then add the N hydroxymethyl acrylamide of proportioning, by ammoniacal liquor regulator solution pH value to 9, be constantly stirred to dissolving completely; When temperature is down to and keep 80 ℃, add the unsaturated polyester resin of proportioning, be constantly stirred to completely and dissolve, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtain solution B;
S3, described solution B is added in described solution A and stirred, wherein temperature is 90 ℃, and the reaction times is 1h, obtains solution C;
S4, to the ethyl cellulose that adds proportioning in described solution C, stir, wherein temperature is 95 ℃ of left and right, the reaction times is 30min minute, cooling, obtains sustained release dosage.
The preparation method of the soybean of soil improvement type described in the present embodiment Special slow release fertilizer, comprises the steps:
S1, by proportioning, agramon and Ureaphil are dropped into vertical stirrer and stir, by movable variable frequency type transfer roller, be delivered to melting tank, microwave heating to 145 is ℃ to being molten state;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch are dropped into horizontal mixer and stir, through movable variable frequency type transfer roller, be delivered to microwave heating to 50 ℃ in microwave fertilizer drying machine, described in input step S1, in melting tank, by agitator, stir and form slip;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, through metering topping-up pump pressurized jet, to tablets press inwall, along with the rotation of tablets press, form fertiliser granulates, and described tablets press rotating speed is 25rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, be cooled to after 50 ℃, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, at described sustained release dosage coating machine inlet section center, be provided with from the spray sustained release dosage pipeline that stretches into described sustained release dosage coating machine inlet section of sustained release dosage reactor bottom access, on described spray sustained release dosage pipeline, rotatable nozzle is installed, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, by described rotatable nozzle, being vaporific is sprayed on described fertiliser granulates, rotation along with described sustained release dosage coating machine, form the complete coating of described fertiliser granulates, described sustained release dosage coating machine rotating speed is 10rpm,
S5, on described sustained release dosage coating machine outlet section top, the jet pipe that stretches into described sustained release dosage coating machine outlet section accessing from air compressor is installed, the air spraying from described jet pipe dispels the fertiliser granulates after coating;
S6, the fertiliser granulates making is dried, solidified by another microwave fertilizer drying machine;
S7, fertiliser granulates after coating solidifies is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, at described oil-like anti-caking agent packing machine center, be provided with and from oil-like anti-caking agent cylinder, stretch into the jet pipe in described oil-like anti-caking agent packing machine, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidifies by the eyelet distributing on described jet pipe, wherein said oil-like anti-caking agent packing machine rotating speed is 10rpm, obtain soil improvement type soybean Special slow release fertilizer, by screening distributor, sieve, packing warehouse-in.
Embodiment 3
A kind of soil improvement type soybean Special slow release fertilizer, comprise by weight percentage following component: agramon 35%, Ureaphil 20%, Repone K 12%, potash magnesium sulphate fertilizer 12.995%, calcium humate 3%, humic acids magnesium 3%, humic acids boron 3%, Sodium salts humic acids 6%, sodium nitrophenolate 0.005%, sustained release dosage 2%, modification Tapioca Starch 3%;
Wherein, described sustained release dosage comprises following component by weight percentage: N hydroxymethyl acrylamide 13%, and unsaturated polyester resin 17%, hexalin 9%, 2-butanols 8%, talcum powder 3%, kaolin 3%, ethyl cellulose 2%, surplus is distilled water.
Wherein, described sustained release dosage adopts following steps to make:
S1, by proportioning, in reactor, add distilled water, be heated to 92 ℃, then add the N hydroxymethyl acrylamide of proportioning, by ammoniacal liquor regulator solution pH value to 8.2, be constantly stirred to dissolving completely; When temperature is down to and keep 85 ℃, add the unsaturated polyester resin of proportioning, be constantly stirred to completely and dissolve, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtain solution B;
S3, described solution B is added in described solution A and stirred, wherein temperature is 80 ℃, and the reaction times is 1.2h, obtains solution C;
S4, to the ethyl cellulose that adds proportioning in described solution C, stir, wherein temperature is 90 ℃ of left and right, the reaction times is 40min minute, cooling, obtains sustained release dosage.
The preparation method of the soybean of soil improvement type described in the present embodiment Special slow release fertilizer, comprises the steps:
S1, by proportioning, urea and Ureaphil are dropped into vertical stirrer and stir, by movable variable frequency type transfer roller, be delivered to melting tank, microwave heating to 140 is ℃ to being molten state;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch are dropped into horizontal mixer and stir, through movable variable frequency type transfer roller, be delivered to microwave heating to 55 ℃ in microwave fertilizer drying machine, described in input step S1, in melting tank, by agitator, stir and form slip;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, through metering topping-up pump pressurized jet, to tablets press inwall, along with the rotation of tablets press, form fertiliser granulates, and described tablets press rotating speed is 27rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, be cooled to after 55 ℃, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, at described sustained release dosage coating machine inlet section center, be provided with from the spray sustained release dosage pipeline that stretches into described sustained release dosage coating machine inlet section of sustained release dosage reactor bottom access, on described spray sustained release dosage pipeline, rotatable nozzle is installed, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, by described rotatable nozzle, being vaporific is sprayed on described fertiliser granulates, rotation along with described sustained release dosage coating machine, form the complete coating of described fertiliser granulates, described sustained release dosage coating machine rotating speed is 13rpm,
S5, on described sustained release dosage coating machine outlet section top, the jet pipe that stretches into described sustained release dosage coating machine outlet section accessing from air compressor is installed, the air spraying from described jet pipe dispels the fertiliser granulates after coating;
S6, the fertiliser granulates making is dried, solidified by another microwave fertilizer drying machine;
S7, fertiliser granulates after coating solidifies is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, at described oil-like anti-caking agent packing machine center, be provided with and from oil-like anti-caking agent cylinder, stretch into the jet pipe in described oil-like anti-caking agent packing machine, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidifies by the eyelet distributing on described jet pipe, wherein said oil-like anti-caking agent packing machine rotating speed is 13rpm, obtain soil improvement type soybean Special slow release fertilizer, by screening distributor, sieve, packing warehouse-in.
In embodiment, a kind of soil improvement type soybean Special slow release fertilizer, comprises following component: urea 287kg, Ureaphil 283kg, Repone K 125kg, potash magnesium sulphate fertilizer 125kg, calcium humate 30kg, humic acids magnesium 30kg, humic acids boron 30kg, Sodium salts humic acids 30kg, sodium nitrophenolate 100g, sustained release dosage 10kg, modification Tapioca Starch 49.9kg;
Wherein, described sustained release dosage comprises following component: N hydroxymethyl acrylamide 10kg, unsaturated polyester resin 20kg, hexalin 7kg, 2-butanols 7kg, talcum powder 4kg, kaolin 4kg, ethyl cellulose 3kg, distilled water 45kg.
The preparation method of described sustained release dosage is:
S1, in reactor, add distilled water 45kg, and be heated to 93 ℃, add N hydroxymethyl acrylamide 10kg, with 20% ammoniacal liquor, regulating pH value is 8.4, is constantly stirred to dissolving completely; Treat that temperature is down to and keeps 86 ℃, add unsaturated polyester resin 20kg, be constantly stirred to completely and dissolve, obtain solution A;
S2, hexalin 7kg, 2-butanols 7kg, talcum powder 4kg and kaolin 4kg mixed and stirred, obtaining solution B;
S3, described solution B is added in described solution A, keep 80 ℃ of left and right, stirring reaction 1.2 hours, obtains solution C;
S4, in described solution C, add ethyl cellulose 3kg, be heated to 90 ℃ of left and right, stir, react 40 minutes, cooling after, obtain sustained release dosage.
The preparation method of the soybean of soil improvement type described in the present embodiment Special slow release fertilizer, comprises the steps:
S1, by proportioning, urea and Ureaphil are dropped into vertical stirrer and stir, by movable variable frequency type transfer roller, be delivered to melting tank, microwave heating to 140 is ℃ to being molten state;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch are dropped into horizontal mixer and stir, through movable variable frequency type transfer roller, be delivered to microwave heating to 65 ℃ in microwave fertilizer drying machine, described in input step S1, in melting tank, by agitator, stir and form slip;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, through metering topping-up pump pressurized jet, to tablets press inwall, along with the rotation of tablets press, form fertiliser granulates, and described tablets press rotating speed is 25rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, be cooled to after 55 ℃, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, at described sustained release dosage coating machine inlet section center, be provided with from the spray sustained release dosage pipeline that stretches into described sustained release dosage coating machine inlet section of sustained release dosage reactor bottom access, on described spray sustained release dosage pipeline, rotatable nozzle is installed, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, by described rotatable nozzle, being vaporific is sprayed on described fertiliser granulates, rotation along with described sustained release dosage coating machine, form the complete coating of described fertiliser granulates, described sustained release dosage coating machine rotating speed is 15rpm,
S5, on described sustained release dosage coating machine outlet section top, the jet pipe that stretches into described sustained release dosage coating machine outlet section accessing from air compressor is installed, the air spraying from described jet pipe dispels the fertiliser granulates after coating;
S6, the fertiliser granulates making is dried, solidified by another microwave fertilizer drying machine;
S7, fertiliser granulates after coating solidifies is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, at described oil-like anti-caking agent packing machine center, be provided with and from oil-like anti-caking agent cylinder, stretch into the jet pipe in described oil-like anti-caking agent packing machine, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidifies by the eyelet distributing on described jet pipe, wherein said oil-like anti-caking agent packing machine rotating speed is 15rpm, obtain soil improvement type soybean Special slow release fertilizer, by screening distributor, sieve, packing warehouse-in.
This soil improvement type soybean Special slow release fertilizer is before soybean planting, in conjunction with whole ground, disposable ditch spread or spread manuer in holes 50～70 kgs/acre, and note keeping the be separated by distance of 5～8 centimetres of fertiliser granulates and soybean seeds, in case burn, plant, burn root, burning seedling, execute rear timely earthing.
Adopt soil improvement type soybean Special slow release fertilizer that the preparation method of a kind of soil improvement type soybean Special slow release fertilizer that the present invention proposes makes after using, impact and conventional fertilizer aspect soil physical and chemical property, soybean yields and economic benefit thereof to be contrasted after using, see the following form 1, table 2, table 3.
Table 1 soil improvement contrast
In the present invention, the soil improvement type soybean Special slow release fertilizer of described preparation contains the necessary macroelement of soybeans they grow such as abundant nitrogen, phosphorus, potassium, science has been added Meso-and micro-nutrients and the beneficial elements such as calcium, magnesium, boron, sodium simultaneously, make soybean to the absorption of nutrient general equilibrium more, be conducive to strengthen photosynthesis and the drought resisting disease and insect resistance lodging tolerance of soybean, improve the quality and yield of soybean; This product can slowly discharge nutritive element enduringly in conjunction with growth characteristics and the regulation of fertilizer requirement of soybean, effective release period of nutrient in fertilizer is extended, thereby meet the soybeans they grow middle and later periods for the demand of nutrient, avoids early ageing and de-fertile; This product can meet the soybean whole breeding time of the demand to nutrient as disposable the applying of base manure, compares the conventional fertilizer of application, within the whole breeding time of soybean, apply fertilizer 3～4 times even more, there is saving of labor, save time and utilization rate of fertilizer advantages of higher; This product has improvement and fertilization effect to soil, main manifestations is for reducing the soil weight, increase soil permeability, reduce or improve soil acidity or alkalinity, increase soil organic matter content, can reduce soil to phosphorus fixation, increase the movement of phosphorus in soil and stimulate the absorption of crop to phosphorus, reduce the probability that potassium ion is fixed by lattice, extend the fertilizer efficiency of potassium.Soil improvement type soybean Special slow release fertilizer prepared by the present invention is applicable to soybean planting on the obstacle soil such as China soybean producing region and acid-alkali salt and uses.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. a soil improvement type soybean Special slow release fertilizer, is characterized in that, comprises by weight percentage following component: urea 20～36%, Ureaphil 20～36%, Repone K 10～20%, potash magnesium sulphate fertilizer 10～20%, calcium humate 1～6%, humic acids magnesium 2～7%, humic acids boron 2～8%, Sodium salts humic acids 1～6%, sodium nitrophenolate 0.005～0.02%, sustained release dosage 1～5%, auxiliary material 3～8%;
Wherein, described sustained release dosage comprises following component by weight percentage: N hydroxymethyl acrylamide 5～15%, unsaturated polyester resin 10～30%, hexalin 4～10%, 2-butanols 5～13%, talcum powder 1～5%, kaolin 1～4%, ethyl cellulose 1～6%, surplus is distilled water.
2. soil improvement type soybean Special slow release fertilizer according to claim 1, is characterized in that, described urea is agramon.
3. soil improvement type soybean Special slow release fertilizer according to claim 1, is characterized in that, described auxiliary material is modification Tapioca Starch.
4. soil improvement type soybean Special slow release fertilizer according to claim 1, is characterized in that, in described soil improvement type soybean Special slow release fertilizer, the mass ratio of nitrogen, phosphorus, three kinds of elements of potassium is (15～20): (10～15): (8～12), and N+P
2o
5+ K
2o>=40%.
5. soil improvement type soybean Special slow release fertilizer according to claim 4, is characterized in that, in described soil improvement type soybean Special slow release fertilizer, the mass ratio of nitrogen, phosphorus, three kinds of elements of potassium is 9:6:5, and N+P
2o
5+ K
2o>=40%.
6. according to the soil improvement type soybean Special slow release fertilizer described in any one in claim 1～5, it is characterized in that, comprise by weight percentage following component: urea 25～30%, Ureaphil 25～30%, Repone K 12～20%, potash magnesium sulphate fertilizer 11～15%, calcium humate 2～5%, humic acids magnesium 3～5%, humic acids boron 2～5%, Sodium salts humic acids 1～3%, sodium nitrophenolate 0.01～0.02%, sustained release dosage 1～3%, auxiliary material 4～6%.
7. according to the soil improvement type soybean Special slow release fertilizer described in any one in claim 1～6, it is characterized in that, described sustained release dosage adopts following steps to make:
S1, by proportioning, in reactor, add distilled water, be heated to 90～95 ℃, then add the N hydroxymethyl acrylamide of proportioning, with ammoniacal liquor regulator solution pH value to 8～9, be constantly stirred to dissolving completely; When temperature is down to and keep 80～90 ℃, add the unsaturated polyester resin of proportioning, be constantly stirred to completely and dissolve, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtain solution B;
S3, described solution B is added in described solution A and stirred, wherein temperature is 75～90 ℃, and the reaction times is 1～1.5h, obtains solution C;
S4, to the ethyl cellulose that adds proportioning in described solution C, stir, wherein temperature is 70～95 ℃ of left and right, the reaction times is 30～60min minute, cooling, obtains sustained release dosage.
8. soil improvement type soybean Special slow release fertilizer according to claim 7, it is characterized in that, in step S1, after adding distilled water to reactor, described temperature is heated to 93 ℃, by described ammoniacal liquor regulator solution pH value to 8.4, when temperature is down to and keep 86 ℃, add the described unsaturated polyester resin of proportioning; In step S3, described temperature is 80 ℃, and the described reaction times is 1.2h; In step S4, described temperature is 90 ℃, and the described reaction times is 40min.
9. according to a preparation method for the soil improvement type soybean Special slow release fertilizer described in any one in claim 1～8, it is characterized in that, comprise the steps:
S1, by proportioning will urea and Ureaphil drop in stirrer and stir, then deliver to that in melting tank, microwave heating is to being molten state, wherein temperature is 135～145 ℃;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, auxiliary material are dropped into stirrer and stir, then deliver in microwave fertilizer drying machine and be heated to 50～70 ℃, drop into described in step S1 in melting tank and stir into slurry by agitator;
S3, described slurry is delivered in tablets press and carried out granulation, described tablets press rotating speed is 25～30rpm, forms fertiliser granulates;
S4, that described fertiliser granulates is delivered to cooler is cooling, when temperature, is down to after 50～60 ℃, delivers in sustained release dosage coating machine and uses the sustained release dosage of proportioning to carry out coating, and described sustained release dosage coating machine rotating speed is 10～15rpm;
S5, will with air compressor, dispel through the fertiliser granulates of coating, obtain the particulate state fertilizer disperseing;
S6, described particulate state fertilizer is delivered to another microwave fertilizer drying machine dry;
S7, the particulate state fertilizer of oven dry is delivered in oil-like anti-caking agent packing machine and sprayed oil-like anti-caking agent, described oil-like anti-caking agent packing machine rotating speed is 10～15rpm, obtains soil improvement type soybean Special slow release fertilizer.
10. the preparation method of soil improvement type soybean Special slow release fertilizer according to claim 9, is characterized in that, in step S1, described temperature is 140 ℃; In step S2, in described microwave fertilizer drying machine, be heated to 65 ℃; In step S4, described temperature is reduced to 55 ℃.
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