CN103524218B - 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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- CN103524218B CN103524218B CN201310460942.3A CN201310460942A CN103524218B CN 103524218 B CN103524218 B CN 103524218B CN 201310460942 A CN201310460942 A CN 201310460942A CN 103524218 B CN103524218 B CN 103524218B
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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, particularly relate to a kind of soil improvement type Special soybean controlled-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 entirety 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, more than 500,000,000 mu, wherein have nearly 200,000,000 mu of agricultural use potentiality; China's soil acidification is also very serious, and the whole nation about has 2.26 hundred million mu of arable soil pH value to be in less than 5.5, south, eastern region arable soil acidifying aggravation, and acidifying area has increase gradually, acidizing degree has the trend of deepening further.In addition, accelerate, emerge the rich and influential family that more and more tills the land along with China rural holding is reversed, agricultural is just fast-developing towards industrialization direction.Add that China peasant goes down town in a large number to work; cause that the between twenty and fifty labor force's in rural area is in short supply; to cause in mass-producing agriculture production human cost to increase, especially large farm crop need repeatedly to apply 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, the dyskinetic soil of modified utilization is significant; In the production process of agricultural-food, for promoting volume increase, need to use chemical fertilizer, but, existing common chemical fertilizer, after long-term a large amount of use, can cause soil physico-chemical property to be deteriorated, simultaneously, existing common chemical fertilizer can not by nutrient slow releasing, and nutrient formula is unreasonable, medium trace element mismatch, cause crop quality and output by restrict to a certain extent and also fertilizer nutrient utilization low, contaminate environment, urgently improves.
Summary of the invention
For prior art Problems existing, the object of the invention is to propose a kind of soil improvement type Special soybean controlled-release fertilizer and preparation method thereof, after described soil improvement type Special soybean controlled-release fertilizer is used, soil physicochemical property can be improved, improve organic content, general equilibrium supply soybean nutrient, it is lasting that nutritive element release is coordinated, significantly improve soybean yields, improve soybean quality, there is obvious economic benefit.
A kind of soil improvement type Special soybean controlled-release is fertile, comprise following component by weight percentage: 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 a particular 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 Special soybean controlled-release fertilizer, the mass ratio of nitrogen, phosphorus, potassium three kinds of elements is (15 ~ 20): (10 ~ 15): (8 ~ 12), and N+P
2o
5+ K
2o>=40%.
Preferably, in described soil improvement type Special soybean controlled-release fertilizer, the mass ratio of nitrogen, phosphorus, potassium three kinds of elements is 9:6:5, and N+P
2o
5+ K
2o>=40%.
In technique scheme, described soil improvement type Special soybean controlled-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, in reactor, add distilled water by proportioning, be heated to 90 ~ 95 DEG C, then add the N hydroxymethyl acrylamide of proportioning, with ammoniacal liquor regulator solution pH value to 8 ~ 9, be constantly stirred to and dissolve completely; When temperature is down to and is kept 80 ~ 90 DEG C, add the unsaturated polyester resin of proportioning, be constantly stirred to and dissolve completely, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtaining solution B;
S3, described solution B to be added in described solution A and stir, wherein temperature is 75 ~ 90 DEG C, and the reaction times is 1 ~ 1.5h, obtains solution C;
S4, in described solution C, add the ethyl cellulose of proportioning, stir, wherein temperature is about 70 ~ 95 DEG C, and the reaction times is 30 ~ 60min minute, and cooling, obtains sustained release dosage.
Preferably, in step sl, described heating temperatures to 93 DEG C after adding distilled water to reactor, by described ammoniacal liquor regulator solution pH value to 8.4, is down to until temperature and keeps adding when 86 DEG C the described unsaturated polyester resin of proportioning; In step s3, described temperature is 80 DEG C, and the described reaction times is 1.2h; In step s 4 which, described temperature is 90 DEG C, and the described reaction times is 40min.
The invention allows for the preparation method of the soil improvement type Special soybean controlled-release fertilizer described in a kind of basis, comprise the steps:
S1, urea and Ureaphil to be dropped in stirrer stir by proportioning, then to deliver in melting tank microwave heating in molten state, wherein temperature is 135 ~ 145 DEG C;
S2, by proportioning by Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, auxiliary material drop into stirrer stir, then deliver in microwave fertilizer drying machine and be heated to 50 ~ 70 DEG C, to drop in melting tank described in step S1 and to stir into slurry by agitator;
S3, to be delivered in tablets press by described slurry and carry out granulation, described tablets press rotating speed is 25 ~ 30rpm, forms fertiliser granulates;
S4, described fertiliser granulates delivered to cooler cooling, after temperature is down to 50 ~ 60 DEG C, delivering in sustained release dosage coating machine and to use the sustained release dosage of proportioning to carry out coating, described sustained release dosage coating machine rotating speed is 10 ~ 15rpm;
S5, the fertiliser granulates air compressor through coating to be dispelled, obtain the granular fertilizers disperseed;
S6, described granular fertilizers delivered to another microwave fertilizer drying machine and dry;
S7, to be delivered in oil-like anti-caking agent packing machine by the granular fertilizers of oven dry and spray oil-like anti-caking agent, described oil-like anti-caking agent packing machine rotating speed is 10 ~ 15rpm, obtains soil improvement type Special soybean controlled-release fertile.
Preferably, in step sl, described temperature is 140 DEG C; In step s 2, in described microwave fertilizer drying machine, 65 DEG C are heated to; In step s 4 which, described temperature is reduced to 55 DEG C.
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, be delivered to melting tank by movable variable frequency type transfer roller, microwave heating to 135 ~ 145 DEG C are in molten state;
S2, by proportioning by Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, auxiliary material drop into horizontal mixer stir, microwave heating to 50 ~ 70 DEG C in microwave fertilizer drying machine are delivered to through movable variable frequency type transfer roller, drop in melting tank described in step S1, stirred by agitator 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, described tablets press rotating speed is 25 ~ 30rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, after being cooled to 50 ~ 60 DEG C, be delivered in sustained release dosage coating machine through movable variable frequency type transfer roller, the spray sustained release dosage pipeline stretching into described sustained release dosage coating machine inlet section from the access of sustained release dosage reactor bottom is installed at described sustained release dosage coating machine inlet section center, described spray sustained release dosage pipeline is provided with rotatable nozzle, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, be vaporificly be sprayed on described fertiliser granulates by described rotatable nozzle, along with the rotation of 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, be provided with the jet pipe stretching into described sustained release dosage coating machine outlet section accessed from air compressor, the fertiliser granulates after coating dispels by the air sprayed from described jet pipe;
S6, obtained fertiliser granulates is dried by another microwave fertilizer drying machine, solidification;
S7, fertiliser granulates after coating solidification is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, the jet pipe stretched into from oil-like anti-caking agent cylinder in described oil-like anti-caking agent packing machine is installed at described oil-like anti-caking agent packing machine center, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidification by the eyelet that described jet pipe distributes, wherein said oil-like anti-caking agent packing machine rotating speed is 10 ~ 15rpm, obtain soil improvement type Special soybean controlled-release fertile, sieved by screening distributor, packaging warehouse-in.
Soil improvement type Special soybean controlled-release fertilizer of the present invention is containing the abundant necessary macroelement of soybeans they grow such as nitrogen, phosphorus, potassium, science with the addition of 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 the photosynthesis and the drought resisting disease and insect resistance lodging tolerance that strengthen soybean, improve the quality and yield of soybean; Nutritive element slowly can discharge in conjunction with the growth characteristics of soybean and regulation of fertilizer requirement by this product enduringly, effective release period of nutrient in fertilizer is extended, thus meets the demand of soybeans they grow middle and later periods for nutrient, avoid early ageing and de-fertilizer; This product can meet soybean whole breeding time to the demand of nutrient as disposable the applying of base manure, compares application common fertilizer, apply fertilizer within the whole breeding time of soybean 3 ~ 4 times even more, there is saving of labor, save time and utilization rate of fertilizer advantages of higher; This product has amending and fertilizing 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, soil can be reduced to phosphorus fixation, increase the movement of phosphorus in soil and stimulate crop to the absorption of phosphorus, reduce the probability that potassium ion is fixed by lattice, extend the fertilizer efficiency of potassium.Soil improvement type Special soybean controlled-release fertilizer prepared by the present invention is applicable to soybean planting on the dyskinetic soil such as China soybean producing region and acid-alkali salt and uses.
Embodiment
Embodiment 1
A kind of soil improvement type Special soybean controlled-release is fertile, comprise following component by weight percentage: 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%, unsaturated polyester resin 10%, hexalin 10%, 2-butanols 5%, talcum powder 5%, kaolin 1%, ethyl cellulose 6%, and surplus is distilled water.
Described sustained release dosage adopts following steps to make:
S1, in reactor, add distilled water by proportioning, be heated to 95 DEG C, then add the N hydroxymethyl acrylamide of proportioning, by ammoniacal liquor regulator solution pH value to 8, be constantly stirred to and dissolve completely; When temperature is down to and is kept 90 DEG C, add the unsaturated polyester resin of proportioning, be constantly stirred to and dissolve completely, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtaining solution B;
S3, described solution B to be added in described solution A and stir, wherein temperature is 75 DEG C, and the reaction times is 1.5h, obtains solution C;
S4, in described solution C, add the ethyl cellulose of proportioning, stir, wherein temperature is about 70 DEG C, and the reaction times is 60min minute, and cooling, obtains sustained release dosage.
The preparation method of the Special soybean controlled-release of soil improvement type described in the present embodiment fertilizer, comprises the steps:
S1, by proportioning, urea and Ureaphil are dropped into vertical stirrer and stir, be delivered to melting tank by movable variable frequency type transfer roller, microwave heating to 135 DEG C is in molten state;
S2, by proportioning by Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch drop into horizontal mixer stir, microwave heating to 70 DEG C in microwave fertilizer drying machine is delivered to through movable variable frequency type transfer roller, drop in melting tank described in step S1, stirred by agitator 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, described tablets press rotating speed is 30rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, after being cooled to 60 DEG C, be delivered in sustained release dosage coating machine through movable variable frequency type transfer roller, the spray sustained release dosage pipeline stretching into described sustained release dosage coating machine inlet section from the access of sustained release dosage reactor bottom is installed at described sustained release dosage coating machine inlet section center, described spray sustained release dosage pipeline is provided with rotatable nozzle, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, be vaporificly be sprayed on described fertiliser granulates by described rotatable nozzle, along with the rotation of 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, be provided with the jet pipe stretching into described sustained release dosage coating machine outlet section accessed from air compressor, the fertiliser granulates after coating dispels by the air sprayed from described jet pipe;
S6, obtained fertiliser granulates is dried by another microwave fertilizer drying machine, solidification;
S7, fertiliser granulates after coating solidification is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, the jet pipe stretched into from oil-like anti-caking agent cylinder in described oil-like anti-caking agent packing machine is installed at described oil-like anti-caking agent packing machine center, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidification by the eyelet that described jet pipe distributes, wherein said oil-like anti-caking agent packing machine rotating speed is 15rpm, obtain soil improvement type Special soybean controlled-release fertile, sieved by screening distributor, packaging warehouse-in.
Embodiment 2
A kind of soil improvement type Special soybean controlled-release is fertile, comprise following component by weight percentage: 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%, unsaturated polyester resin 30%, hexalin 4%, 2-butanols 13%, talcum powder 1%, kaolin 4%, ethyl cellulose 1%, and surplus is distilled water.
Described sustained release dosage adopts following steps to make:
S1, in reactor, add distilled water by proportioning, be heated to 90 DEG C, then add the N hydroxymethyl acrylamide of proportioning, by ammoniacal liquor regulator solution pH value to 9, be constantly stirred to and dissolve completely; When temperature is down to and is kept 80 DEG C, add the unsaturated polyester resin of proportioning, be constantly stirred to and dissolve completely, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtaining solution B;
S3, described solution B to be added in described solution A and stir, wherein temperature is 90 DEG C, and the reaction times is 1h, obtains solution C;
S4, in described solution C, add the ethyl cellulose of proportioning, stir, wherein temperature is about 95 DEG C, and the reaction times is 30min minute, and cooling, obtains sustained release dosage.
The preparation method of the Special soybean controlled-release of soil improvement type described in the present embodiment fertilizer, comprises the steps:
S1, by proportioning, agramon and Ureaphil are dropped into vertical stirrer and stir, be delivered to melting tank by movable variable frequency type transfer roller, microwave heating to 145 DEG C is in molten state;
S2, by proportioning by Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch drop into horizontal mixer stir, microwave heating to 50 DEG C in microwave fertilizer drying machine is delivered to through movable variable frequency type transfer roller, drop in melting tank described in step S1, stirred by agitator 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, described tablets press rotating speed is 25rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, after being cooled to 50 DEG C, be delivered in sustained release dosage coating machine through movable variable frequency type transfer roller, the spray sustained release dosage pipeline stretching into described sustained release dosage coating machine inlet section from the access of sustained release dosage reactor bottom is installed at described sustained release dosage coating machine inlet section center, described spray sustained release dosage pipeline is provided with rotatable nozzle, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, be vaporificly be sprayed on described fertiliser granulates by described rotatable nozzle, along with the rotation of 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, be provided with the jet pipe stretching into described sustained release dosage coating machine outlet section accessed from air compressor, the fertiliser granulates after coating dispels by the air sprayed from described jet pipe;
S6, obtained fertiliser granulates is dried by another microwave fertilizer drying machine, solidification;
S7, fertiliser granulates after coating solidification is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, the jet pipe stretched into from oil-like anti-caking agent cylinder in described oil-like anti-caking agent packing machine is installed at described oil-like anti-caking agent packing machine center, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidification by the eyelet that described jet pipe distributes, wherein said oil-like anti-caking agent packing machine rotating speed is 10rpm, obtain soil improvement type Special soybean controlled-release fertile, sieved by screening distributor, packaging warehouse-in.
Embodiment 3
A kind of soil improvement type Special soybean controlled-release is fertile, comprise following component by weight percentage: 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%, unsaturated polyester resin 17%, hexalin 9%, 2-butanols 8%, talcum powder 3%, kaolin 3%, ethyl cellulose 2%, and surplus is distilled water.
Wherein, described sustained release dosage adopts following steps to make:
S1, in reactor, add distilled water by proportioning, be heated to 92 DEG C, then add the N hydroxymethyl acrylamide of proportioning, by ammoniacal liquor regulator solution pH value to 8.2, be constantly stirred to and dissolve completely; When temperature is down to and is kept 85 DEG C, add the unsaturated polyester resin of proportioning, be constantly stirred to and dissolve completely, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtaining solution B;
S3, described solution B to be added in described solution A and stir, wherein temperature is 80 DEG C, and the reaction times is 1.2h, obtains solution C;
S4, in described solution C, add the ethyl cellulose of proportioning, stir, wherein temperature is about 90 DEG C, and the reaction times is 40min minute, and cooling, obtains sustained release dosage.
The preparation method of the Special soybean controlled-release of soil improvement type described in the present embodiment fertilizer, comprises the steps:
S1, by proportioning, urea and Ureaphil are dropped into vertical stirrer and stir, be delivered to melting tank by movable variable frequency type transfer roller, microwave heating to 140 DEG C is in molten state;
S2, by proportioning by Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch drop into horizontal mixer stir, microwave heating to 55 DEG C in microwave fertilizer drying machine is delivered to through movable variable frequency type transfer roller, drop in melting tank described in step S1, stirred by agitator 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, described tablets press rotating speed is 27rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, after being cooled to 55 DEG C, be delivered in sustained release dosage coating machine through movable variable frequency type transfer roller, the spray sustained release dosage pipeline stretching into described sustained release dosage coating machine inlet section from the access of sustained release dosage reactor bottom is installed at described sustained release dosage coating machine inlet section center, described spray sustained release dosage pipeline is provided with rotatable nozzle, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, be vaporificly be sprayed on described fertiliser granulates by described rotatable nozzle, along with the rotation of 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, be provided with the jet pipe stretching into described sustained release dosage coating machine outlet section accessed from air compressor, the fertiliser granulates after coating dispels by the air sprayed from described jet pipe;
S6, obtained fertiliser granulates is dried by another microwave fertilizer drying machine, solidification;
S7, fertiliser granulates after coating solidification is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, the jet pipe stretched into from oil-like anti-caking agent cylinder in described oil-like anti-caking agent packing machine is installed at described oil-like anti-caking agent packing machine center, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidification by the eyelet that described jet pipe distributes, wherein said oil-like anti-caking agent packing machine rotating speed is 13rpm, obtain soil improvement type Special soybean controlled-release fertile, sieved by screening distributor, packaging warehouse-in.
In a specific embodiment, a kind of soil improvement type Special soybean controlled-release is fertile, 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 DEG C, add N hydroxymethyl acrylamide 10kg, be 8.4 by 20% ammoniacal liquor adjust ph, be constantly stirred to and dissolve completely; Treat that temperature is down to and keeps 86 DEG C, add unsaturated polyester resin 20kg, be constantly stirred to and dissolve completely, obtain solution A;
S2, hexalin 7kg, 2-butanols 7kg, talcum powder 4kg and kaolin 4kg mixed and stir, obtaining solution B;
S3, add in described solution A by described solution B, keep about 80 DEG C, stirring reaction 1.2 hours, obtains solution C;
S4, in described solution C, add ethyl cellulose 3kg, be heated to about 90 DEG C, stir, react 40 minutes, after cooling, obtain sustained release dosage.
The preparation method of the Special soybean controlled-release of soil improvement type described in the present embodiment fertilizer, comprises the steps:
S1, by proportioning, urea and Ureaphil are dropped into vertical stirrer and stir, be delivered to melting tank by movable variable frequency type transfer roller, microwave heating to 140 DEG C is in molten state;
S2, by proportioning by Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch drop into horizontal mixer stir, microwave heating to 65 DEG C in microwave fertilizer drying machine is delivered to through movable variable frequency type transfer roller, drop in melting tank described in step S1, stirred by agitator 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, described tablets press rotating speed is 25rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, after being cooled to 55 DEG C, be delivered in sustained release dosage coating machine through movable variable frequency type transfer roller, the spray sustained release dosage pipeline stretching into described sustained release dosage coating machine inlet section from the access of sustained release dosage reactor bottom is installed at described sustained release dosage coating machine inlet section center, described spray sustained release dosage pipeline is provided with rotatable nozzle, the sustained release dosage of proportioning is through the pressurization of metering topping-up pump, be vaporificly be sprayed on described fertiliser granulates by described rotatable nozzle, along with the rotation of 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, be provided with the jet pipe stretching into described sustained release dosage coating machine outlet section accessed from air compressor, the fertiliser granulates after coating dispels by the air sprayed from described jet pipe;
S6, obtained fertiliser granulates is dried by another microwave fertilizer drying machine, solidification;
S7, fertiliser granulates after coating solidification is delivered in oil-like anti-caking agent packing machine by movable variable frequency type transfer roller, the jet pipe stretched into from oil-like anti-caking agent cylinder in described oil-like anti-caking agent packing machine is installed at described oil-like anti-caking agent packing machine center, through the pressurization of metering topping-up pump, oil-like anti-caking agent is sprayed on the fertiliser granulates after coating solidification by the eyelet that described jet pipe distributes, wherein said oil-like anti-caking agent packing machine rotating speed is 15rpm, obtain soil improvement type Special soybean controlled-release fertile, sieved by screening distributor, packaging warehouse-in.
This soil improvement type Special soybean controlled-release is fertile before soybean planting, in conjunction with whole, disposable ditch spread or spread manuer in holes 50 ~ 70 kgs/acre, and note keeping fertiliser granulates and soybean seeds to be separated by the distance of 5 ~ 8 centimetres, with burn-out-proof kind, burn root, burning seedling, execute rear timely earthing.
The soil improvement type Special soybean controlled-release that a kind of preparation method of soil improvement type Special soybean controlled-release fertilizer adopting the present invention to propose makes is fertile to be contrasted after application on the impact of soil physical and chemical property, soybean yields and economic benefit aspect thereof and common fertilizer after application, sees the following form 1, table 2, table 3.
Table 1 soil improvement contrasts
In the present invention, the soil improvement type Special soybean controlled-release fertilizer of described preparation is containing the abundant necessary macroelement of soybeans they grow such as nitrogen, phosphorus, potassium, science with the addition of 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 the photosynthesis and the drought resisting disease and insect resistance lodging tolerance that strengthen soybean, improve the quality and yield of soybean; Nutritive element slowly can discharge in conjunction with the growth characteristics of soybean and regulation of fertilizer requirement by this product enduringly, effective release period of nutrient in fertilizer is extended, thus meets the demand of soybeans they grow middle and later periods for nutrient, avoid early ageing and de-fertilizer; This product can meet soybean whole breeding time to the demand of nutrient as disposable the applying of base manure, compares application common fertilizer, apply fertilizer within the whole breeding time of soybean 3 ~ 4 times even more, there is saving of labor, save time and utilization rate of fertilizer advantages of higher; This product has amending and fertilizing 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, soil can be reduced to phosphorus fixation, increase the movement of phosphorus in soil and stimulate crop to the absorption of phosphorus, reduce the probability that potassium ion is fixed by lattice, extend the fertilizer efficiency of potassium.Soil improvement type Special soybean controlled-release fertilizer prepared by the present invention is applicable to soybean planting on the dyskinetic soil such as China soybean producing region and acid-alkali salt and uses.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (9)
1. a soil improvement type Special soybean controlled-release is fertile, it is characterized in that, comprises following component by weight percentage: 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; Described sustained release dosage adopts following steps to make:
S1, in reactor, add distilled water by proportioning, be heated to 90 ~ 95 DEG C, then add the N hydroxymethyl acrylamide of proportioning, with ammoniacal liquor regulator solution pH value to 8 ~ 9, be constantly stirred to and dissolve completely; When temperature is down to and is kept 80 ~ 90 DEG C, add the unsaturated polyester resin of proportioning, be constantly stirred to and dissolve completely, obtain solution A;
S2, the hexalin of proportioning, 2-butanols, talcum powder and kaolin are put into container, mix and stir, obtaining solution B;
S3, described solution B to be added in described solution A and stir, wherein temperature is 75 ~ 90 DEG C, and the reaction times is 1 ~ 1.5h, obtains solution C;
S4, in described solution C, add the ethyl cellulose of proportioning, stir, wherein temperature is 70 ~ 95 DEG C, and the reaction times is 30 ~ 60min minute, and cooling, obtains sustained release dosage.
2. soil improvement type Special soybean controlled-release according to claim 1 is fertile, and it is characterized in that, described urea is agramon.
3. soil improvement type Special soybean controlled-release according to claim 1 is fertile, and it is characterized in that, described auxiliary material is modification Tapioca Starch.
4. soil improvement type Special soybean controlled-release according to claim 1 is fertile, it is characterized in that, in described soil improvement type Special soybean controlled-release fertilizer, the mass ratio of nitrogen, phosphorus, potassium three kinds of elements is (15 ~ 20): (10 ~ 15): (8 ~ 12), and N+P
2o
5+ K
2o>=40%.
5. soil improvement type Special soybean controlled-release according to claim 4 is fertile, and it is characterized in that, in described soil improvement type Special soybean controlled-release fertilizer, the mass ratio of nitrogen, phosphorus, potassium three kinds of elements is 9:6:5, and N+P
2o
5+ K
2o>=40%.
6. the soil improvement type Special soybean controlled-release according to any one of Claims 1 to 5 is fertile, it is characterized in that, 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%.
7. soil improvement type Special soybean controlled-release according to claim 1 is fertile, it is characterized in that, in step sl, described heating temperatures to 93 DEG C after adding distilled water to reactor, by described ammoniacal liquor regulator solution pH value to 8.4, be down to until temperature and keep adding when 86 DEG C the described unsaturated polyester resin of proportioning; In step s3, described temperature is 80 DEG C, and the described reaction times is 1.2h; In step s 4 which, described temperature is 90 DEG C, and the described reaction times is 40min.
8. a preparation method for the soil improvement type Special soybean controlled-release fertilizer according to any one of claim 1 ~ 7, is characterized in that, comprise the steps:
S1, urea and Ureaphil to be dropped in stirrer stir by proportioning, then to deliver in melting tank microwave heating in molten state, wherein temperature is 135 ~ 145 DEG C;
S2, by proportioning by Repone K, potash magnesium sulphate fertilizer, Sodium salts humic acids, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, auxiliary material drop into stirrer stir, then deliver in microwave fertilizer drying machine and be heated to 50 ~ 70 DEG C, to drop in melting tank described in step S1 and to stir into slurry by agitator;
S3, to be delivered in tablets press by described slurry and carry out granulation, described tablets press rotating speed is 25 ~ 30rpm, forms fertiliser granulates;
S4, described fertiliser granulates delivered to cooler cooling, after temperature is down to 50 ~ 60 DEG C, delivering in sustained release dosage coating machine and to use the sustained release dosage of proportioning to carry out coating, described sustained release dosage coating machine rotating speed is 10 ~ 15rpm;
S5, the fertiliser granulates air compressor through coating to be dispelled, obtain the granular fertilizers disperseed;
S6, described granular fertilizers delivered to another microwave fertilizer drying machine and dry;
S7, to be delivered in oil-like anti-caking agent packing machine by the granular fertilizers of oven dry and spray oil-like anti-caking agent, described oil-like anti-caking agent packing machine rotating speed is 10 ~ 15rpm, obtains soil improvement type Special soybean controlled-release fertile.
9. the preparation method of soil improvement type Special soybean controlled-release fertilizer according to claim 8, is characterized in that, in step sl, described temperature is 140 DEG C; In step s 2, in described microwave fertilizer drying machine, 65 DEG C are heated to; In step s 4 which, described temperature is reduced to 55 DEG C.
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| CN104045425B (en) * | 2014-05-28 | 2016-05-25 | 马鞍山市心洲葡萄专业合作社 | A kind of soybean special bio green organic fertilizer and preparation method thereof |
| CN104692949B (en) * | 2015-03-14 | 2017-11-24 | 武鸣县红鹰肥业有限公司 | It is a kind of suitable for nitrate-based compound fertilizer of planting fruit trees and preparation method thereof |
| CN105237244A (en) * | 2015-11-19 | 2016-01-13 | 东莞市神州生物科技有限公司 | Organic and inorganic compound fertilizer for leguminous plants and preparation method thereof |
| CN106365773A (en) * | 2016-08-23 | 2017-02-01 | 安徽恒汇生态农业有限公司 | Sustained-release dendrobium special-use fertilizer |
| CN106588443A (en) * | 2016-11-29 | 2017-04-26 | 宋杨明 | Carrot organic compound fertilizer capable of improving soil and rich in nutrition |
| CN106397061A (en) * | 2016-11-29 | 2017-02-15 | 宋杨明 | High-utilization-rate carrot dedicated fertilizer |
| CN108624330A (en) * | 2018-06-28 | 2018-10-09 | 全椒县马塘湖农作物种植专业合作社 | A kind of Soil improvement matrix and preparation method thereof for soybean planting |
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