CN103524215B - Soil improvement type cotton dedicated sustained-release fertilizer and preparation method thereof - Google Patents
Soil improvement type cotton dedicated sustained-release fertilizer and preparation method thereof Download PDFInfo
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- CN103524215B CN103524215B CN201310460312.6A CN201310460312A CN103524215B CN 103524215 B CN103524215 B CN 103524215B CN 201310460312 A CN201310460312 A CN 201310460312A CN 103524215 B CN103524215 B CN 103524215B
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Abstract
The invention discloses a soil improvement type cotton dedicated sustained-release fertilizer comprising the following components by the weight percentage: 25-40% of powdered urea, 12-25% of urea phosphate, 15-30% of potassium chloride, 6-15% of a magnesium potassium sulfate fertilizer, 2-10% of humic acid zinc, 2-8% of humic acid boron, 1-5% of humic acid calcium, 1-4% of humic acid magnesium, 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 cotton 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 cotton 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 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 exceed 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 towards the fast development of 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, but, 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, 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 cotton Special slow release fertilizer and preparation method thereof, after described soil improvement type cotton Special slow release fertilizer is used, can improve soil physicochemical property, improve organic content, general equilibrium is supplied with cotton nutrient, nutritive element discharges to be coordinated lastingly, significantly improve output of cotton, improve cotton quality, there is obvious economic benefit.
A kind of soil improvement type cotton Special slow release fertilizer, contain by weight percentage following component: agramon 25～40%, Ureaphil 12～25%, Repone K 15～30%, potash magnesium sulphate fertilizer 6～15%, zinc humic acid 2～10%, humic acids boron 2～8%, calcium humate 1～5%, humic acids magnesium 1～4%, sodium nitrophenolate 0.005～0.02%, sustained release dosage 1～5%, auxiliary material 3～8%;
Wherein, described sustained release dosage contains 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 agramon can be 25%, 31%, 35%, 40%, the content of described Ureaphil can be 12%, 15%, 21%, 25%, the content of described Repone K can be 15%, 17%, 23%, 30%, the content of described potassiumphosphate fertiliser containing magnesium can be 6%, 8%, 11%, 15%, the content of described humic acid zinc can be 2%, 4%, 8%, 10%, the content of described humic acids boron can be 2%, 5%, 6%, 8%, the content of described calcium humate can be 1%, 3%, 5%, the content of described humic acids magnesium can be 1%, 2%, 4%, the content of described sodium nitrophenolate can be 0.005%, 0.013%, 0.02%, the content of described sustained release dosage can be for drawing together 1%, 2%, 4%, 5%, the content of described auxiliary material can be 3%, 5%, 6%, 8%.
Preferably, described auxiliary material is modification Tapioca Starch.
Preferably, in described soil improvement type cotton Special slow release fertilizer, the mass ratio of nitrogen, phosphorus, three kinds of elements of potassium is (15～20): (6～10): (10～15), and N+P
2o
5+ K
2o>=40%.
Preferably, in described soil improvement type cotton Special slow release fertilizer, the mass ratio of nitrogen, phosphorus, three kinds of elements of potassium is 9:4:7, and N+P
2o
5+ K
2o>=40%.
In technique scheme, described soil improvement type cotton Special slow release fertilizer contains following component by weight percentage: agramon 30～40%, Ureaphil 15～20%, Repone K 15～20%, potash magnesium sulphate fertilizer 8～12%, zinc humic acid 3～6%, humic acids boron 2～5%, calcium humate 1～3%, humic acids magnesium 2～4%, 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 dissolving completely; In the time that temperature is down to and keep 80～90 DEG C, 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 DEG C, 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 DEG C of left and right, the reaction times is 30～60min minute, cooling, obtains sustained release dosage.
Preferably, in step S1, add distilled water to reactor after described temperature be heated to 93 DEG C, by described ammoniacal liquor regulator solution pH value to 8.4, in the time that temperature is down to and keep 86 DEG C, add 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 S4, described temperature is 90 DEG C, and the described reaction times is 40min.
The preparation method who the invention allows for the soil improvement type cotton Special slow release fertilizer described in a kind of basis, comprises the steps:
S1, by proportioning will agramon 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 DEG C;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, zinc humic acid, 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 DEG C, 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, is down to after 50～60 DEG C when temperature, 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 dispel with air compressor 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 cotton Special slow release fertilizer.
Preferably, in step S1, described temperature is 140-144 DEG C; In step S2, in described microwave fertilizer drying machine, be heated to 62-66 DEG C; In step S4, described temperature is reduced to 55-59 DEG C.
Preferably, in step S1, described temperature is 140 DEG C; In step S2, in described microwave fertilizer drying machine, be heated to 65 DEG C; In step S4, described temperature is reduced to 55 DEG C.
Wherein, in above-mentioned preparation method, the detailed technology method in each step is as follows:
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 is to being molten state, and wherein temperature is 135～145 DEG C;
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, be delivered to microwave heating to 50～70 DEG C in microwave fertilizer drying machine through movable variable frequency type transfer roller, described in input step S1, in melting tank, stir and form slip by agitator;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, to tablets press inwall, along with the rotation of described tablets press, form fertiliser granulates through metering topping-up pump pressurized jet, 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 DEG C, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, be provided with at described sustained release dosage coating machine inlet section center 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, being vaporific by described rotatable nozzle is sprayed on described fertiliser granulates, 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, 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, be provided with and stretch into the jet pipe in described oil-like anti-caking agent packing machine from oil-like anti-caking agent cylinder 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 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 cotton Special slow release fertilizer, sieve by screening distributor, packaging warehouse-in.
Soil improvement type cotton Special slow release fertilizer of the present invention contains the necessary macroelement of cotton growth such as abundant nitrogen, phosphorus, potassium, science has been added the Meso-and micro-nutrients such as calcium, magnesium, boron, zinc simultaneously, make cotton to the absorption of nutrient general equilibrium more, be conducive to strengthen photosynthesis and the drought resisting disease and insect resistance lodging tolerance of cotton, improve the quality and yield of cotton; This product can slowly discharge nutritive element enduringly in conjunction with the growth characteristics of cotton and regulation of fertilizer requirement, effective release period of nutrient in fertilizer is extended, thereby meet the demand of cotton growth middle and later periods for nutrient, avoids early ageing and de-fertile; This product can meet the cotton 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 cotton, apply fertilizer 3～4 times even more, there is saving of labor, save time and improve the advantages such as utilization rate of fertilizer; 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 cotton Special slow release fertilizer prepared by the present invention is applicable to cotton planting on the obstacle soil such as Cotton in China producing region and acid-alkali salt and uses.
Embodiment
Embodiment 1
A kind of soil improvement type cotton Special slow release fertilizer, comprise by weight percentage following component: agramon 26%, Ureaphil 15%, Repone K 17%, potash magnesium sulphate fertilizer 15%, zinc humic acid 8%, humic acids boron 6%, calcium humate 4.485%, humic acids magnesium 3%, sodium nitrophenolate 0.015%, sustained release dosage 2%, modification Tapioca Starch 3.5%;
Wherein, described sustained release dosage contains following component by weight percentage: N hydroxymethyl acrylamide 5%, and unsaturated polyester resin 30%, hexalin 10%, 2-butanols 13%, talcum powder 1%, kaolin 1%, ethyl cellulose 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 95 DEG C, then add the N hydroxymethyl acrylamide of proportioning, by ammoniacal liquor regulator solution pH value to 8, be constantly stirred to dissolving completely; In the time that temperature is down to and keep 90 DEG C, 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 DEG C, and the reaction times is 1.5h, obtains solution C;
S4, to the ethyl cellulose that adds proportioning in solution C, stir, wherein temperature is 70 DEG C of left and right, the reaction times is 60min minute, cooling, obtains sustained release dosage.
The preparation method of the cotton 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, be delivered to melting tank by movable variable frequency type transfer roller, microwave heating is to being molten state, and wherein temperature is 135 DEG C;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, zinc humic acid, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch are dropped into horizontal mixer and stir, be delivered to microwave heating to 70 DEG C in microwave fertilizer drying machine through movable variable frequency type transfer roller, described in input step S1, in melting tank, stir and form slip by agitator;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, to tablets press inwall, along with the rotation of described tablets press, form fertiliser granulates through metering topping-up pump pressurized jet, 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 DEG C, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, be provided with at described sustained release dosage coating machine inlet section center 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, being vaporific by described rotatable nozzle is sprayed on described fertiliser granulates, 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, 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, be provided with and stretch into the jet pipe in described oil-like anti-caking agent packing machine from oil-like anti-caking agent cylinder 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 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 cotton Special slow release fertilizer, sieve by screening distributor, packaging warehouse-in.
Embodiment 2
A kind of soil improvement type cotton Special slow release fertilizer, comprise by weight percentage following component: agramon 32%, Ureaphil 13%, Repone K 20.994%, potash magnesium sulphate fertilizer 8%, zinc humic acid 10%, humic acids boron 3%, calcium humate 5%, humic acids magnesium 2%, sodium nitrophenolate 0.006%, sustained release dosage 2%, modification Tapioca Starch 4%;
Wherein, described sustained release dosage contains following component by weight percentage: N hydroxymethyl acrylamide 15%, and unsaturated polyester resin 10%, hexalin 4%, 2-butanols 5%, talcum powder 5%, kaolin 4%, ethyl cellulose 1%, 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 dissolving completely; In the time that temperature is down to and keep 80 DEG C, 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 DEG C, 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 DEG C of left and right, the reaction times is 30min minute, cooling, obtains sustained release dosage.
The preparation method of the cotton 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, be delivered to melting tank by movable variable frequency type transfer roller, microwave heating is to being molten state, and wherein temperature is 145 DEG C;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, zinc humic acid, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch are dropped into horizontal mixer and stir, be delivered to microwave heating to 50 DEG C in microwave fertilizer drying machine through movable variable frequency type transfer roller, described in input step S1, in melting tank, stir and form slip by agitator;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, to tablets press inwall, along with the rotation of described tablets press, form fertiliser granulates through metering topping-up pump pressurized jet, 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 DEG C, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, be provided with at described sustained release dosage coating machine inlet section center 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, being vaporific by described rotatable nozzle is sprayed on described fertiliser granulates, 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, 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, be provided with and stretch into the jet pipe in described oil-like anti-caking agent packing machine from oil-like anti-caking agent cylinder 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 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 cotton Special slow release fertilizer, sieve by screening distributor, packaging warehouse-in.
Embodiment 3
A kind of soil improvement type cotton Special slow release fertilizer, comprise by weight percentage following component: agramon 38%, Ureaphil 15%, Repone K 16%, potash magnesium sulphate fertilizer 11%, zinc humic acid 4%, humic acids boron 3%, calcium humate 1%, humic acids magnesium 3%, sodium nitrophenolate 0.02%, sustained release dosage 2.98%, modification Tapioca Starch 6%;
Wherein, described sustained release dosage contains following component by weight percentage: N hydroxymethyl acrylamide 7%, and unsaturated polyester resin 15%, hexalin 9%, 2-butanols 6%, talcum powder 4%, kaolin 4%, ethyl cellulose 5%, surplus is distilled water.
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 8.9, be constantly stirred to dissolving completely; In the time that temperature is down to and keep 82 DEG C, 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 DEG C, 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 DEG C of left and right, the reaction times is 40min minute, cooling, obtains sustained release dosage.
The preparation method of the soil improvement type cotton Special slow release fertilizer described in the present embodiment, 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 is to being molten state, and wherein temperature is 140 DEG C;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, zinc humic acid, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, auxiliary material are dropped into horizontal mixer and stir, be delivered to microwave heating to 55 DEG C in microwave fertilizer drying machine through movable variable frequency type transfer roller, described in input step S1, in melting tank, stir and form slip by agitator;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, to tablets press inwall, along with the rotation of described tablets press, form fertiliser granulates through metering topping-up pump pressurized jet, 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 DEG C, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, be provided with at described sustained release dosage coating machine inlet section center 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, being vaporific by described rotatable nozzle is sprayed on described fertiliser granulates, 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, 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, be provided with and stretch into the jet pipe in described oil-like anti-caking agent packing machine from oil-like anti-caking agent cylinder 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 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 cotton Special slow release fertilizer, sieve by screening distributor, packaging warehouse-in.
In embodiment, a kind of soil improvement type cotton Special slow release fertilizer contains following component: agramon 328kg, Ureaphil 182kg, Repone K 200kg, potash magnesium sulphate fertilizer 100kg, zinc humic acid 40kg, humic acids boron 40kg, calcium humate 25kg, humic acids magnesium 25kg, sodium nitrophenolate 100g, sustained release dosage 10kg, modification Tapioca Starch 49.9kg;
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, regulating pH value with 20% ammoniacal liquor is 8.4, is constantly stirred to dissolving completely; Treat that temperature is down to and keeps 86 DEG C, 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 DEG C 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 DEG C of left and right, stir, react 40 minutes, cooling after, obtain sustained release dosage.
The preparation method of the cotton 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, be delivered to melting tank by movable variable frequency type transfer roller, microwave heating is to being molten state, and wherein temperature is 140 DEG C;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, zinc humic acid, humic acids boron, calcium humate, humic acids magnesium, sodium nitrophenolate, modification Tapioca Starch are dropped into horizontal mixer and stir, be delivered to microwave heating to 65 DEG C in microwave fertilizer drying machine through movable variable frequency type transfer roller, described in input step S1, in melting tank, stir and form slip by agitator;
S3, described slip stretch to the rotary nozzle in tablets press through described melting pot bottom, to tablets press inwall, along with the rotation of described tablets press, form fertiliser granulates through metering topping-up pump pressurized jet, and described tablets press rotating speed is 28rpm;
S4, described fertiliser granulates is delivered in cooler through movable variable frequency type transfer roller, be cooled to after 55 DEG C, in movable variable frequency type transfer roller is delivered to sustained release dosage coating machine, be provided with at described sustained release dosage coating machine inlet section center 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, being vaporific by described rotatable nozzle is sprayed on described fertiliser granulates, 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 14rpm,
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, be provided with and stretch into the jet pipe in described oil-like anti-caking agent packing machine from oil-like anti-caking agent cylinder 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 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 cotton Special slow release fertilizer, sieve by screening distributor, packaging warehouse-in.
This soil improvement type cotton Special slow release fertilizer is before cotton is live, in conjunction with whole ground, disposable ditch spread or spread manuer in holes 80～100 kgs/acre, and note keeping the be separated by distance of 5～8 centimetres of fertiliser granulates and cotton seeds, plant, burn root, burning seedling in case burn, execute rear timely earthing; For transplanting cotton, execute 80～100 kilograms of soil improvement type cotton Special slow release fertilizers for every mu and make base manure or transplant fertile disposable applying, adopt trench digging to concentrate deep placement mode, 15～20 centimetres of ditch depths, with 20 centimetres of left and right of cotton plant spacing distance.Fertilizer is evenly sprinkling upon bottom of trench, then earthing.
The soil improvement type cotton Special slow release fertilizer that a kind of preparation method of soil improvement type cotton Special slow release fertilizer who adopts the present invention to propose makes contrasts after using impact and conventional fertilizer aspect soil physical and chemical property, output of cotton and economic benefit thereof after using, and sees the following form 1, table 2, table 3.
Table 1 soil improvement contrast
Table 2 yield comparison
Table 3 economic efficiency contrast
In the present invention, the soil improvement type cotton Special slow release fertilizer of described preparation contains the necessary macroelement of cotton growth such as abundant nitrogen, phosphorus, potassium, science has been added the Meso-and micro-nutrients such as calcium, magnesium, boron, zinc simultaneously, make cotton to the absorption of nutrient general equilibrium more, be conducive to strengthen photosynthesis and the drought resisting disease and insect resistance lodging tolerance of cotton, improve the quality and yield of cotton; This product can slowly discharge nutritive element enduringly in conjunction with the growth characteristics of cotton and regulation of fertilizer requirement, effective release period of nutrient in fertilizer is extended, thereby meet the demand of cotton growth middle and later periods for nutrient, avoids early ageing and de-fertile; This product can meet the cotton 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 cotton, apply fertilizer 3～4 times even more, there is saving of labor, save time and improve the advantages such as utilization rate of fertilizer; 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 cotton Special slow release fertilizer prepared by the present invention is applicable to cotton planting on the obstacle soil such as Cotton in China 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; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (9)
1. a soil improvement type cotton Special slow release fertilizer, is characterized in that, contains by weight percentage following component: agramon 25～40%, Ureaphil 12～25%, Repone K 15～30%, potash magnesium sulphate fertilizer 6～15%, zinc humic acid 2～10%, humic acids boron 2～8%, calcium humate 1～5%, humic acids magnesium 1～4%, sodium nitrophenolate 0.005～0.02%, sustained release dosage 1～5%, auxiliary material 3～8%; Described auxiliary material is modification Tapioca Starch;
Wherein, described sustained release dosage is made up of following raw material 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 cotton Special slow release fertilizer according to claim 1, it is characterized in that, in described soil improvement type cotton Special slow release fertilizer, the mass ratio of nitrogen, phosphorus, three kinds of elements of potassium is (15～20): (6～10): (10～15), and N+P
2o
5+ K
2o>=40%.
3. soil improvement type cotton Special slow release fertilizer according to claim 2, is characterized in that, in described soil improvement type cotton Special slow release fertilizer, the mass ratio of nitrogen, phosphorus, three kinds of elements of potassium is 9:4:7, and N+P
2o
5+ K
2o>=40%.
4. soil improvement type cotton Special slow release fertilizer according to claim 1, is characterized in that, contains by weight percentage following component: agramon 30～40%, Ureaphil 15～20%, Repone K 15～20%, potash magnesium sulphate fertilizer 8～12%, zinc humic acid 3～6%, humic acids boron 2～5%, calcium humate 1～3%, humic acids magnesium 2～4%, sodium nitrophenolate 0.01～0.02%, sustained release dosage 1～3%, auxiliary material 4～6%.
5. soil improvement type cotton Special slow release fertilizer according to claim 1, is characterized in that, 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 dissolving completely; In the time that temperature is down to and keep 80～90 DEG C, 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 DEG C, 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 DEG C, the reaction times is 30～60min minute, cooling, obtains sustained release dosage.
6. soil improvement type cotton Special slow release fertilizer according to claim 5, it is characterized in that, in step S1, after adding distilled water to reactor, described temperature is heated to 93 DEG C, by described ammoniacal liquor regulator solution pH value to 8.4, in the time that temperature is down to and keep 86 DEG C, add 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 S4, described temperature is 90 DEG C, and the described reaction times is 40min.
7. according to a preparation method for the soil improvement type cotton Special slow release fertilizer described in any one in claim 1～6, it is characterized in that, comprise the steps:
S1, by proportioning will agramon 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 DEG C;
S2, by proportioning, Repone K, potash magnesium sulphate fertilizer, zinc humic acid, 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 DEG C, 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, is down to after 50～60 DEG C when temperature, 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 dispel with air compressor 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 cotton Special slow release fertilizer.
8. the preparation method of soil improvement type cotton Special slow release fertilizer according to claim 7, is characterized in that, in step S1, described temperature is 140-144 DEG C; In step S2, in described microwave fertilizer drying machine, be heated to 62-66 DEG C; In step S4, described temperature is reduced to 55-59 DEG C.
9. the preparation method of soil improvement type cotton Special slow release fertilizer according to claim 8, is characterized in that, in step S1, described temperature is 140 DEG C; In step S2, in described microwave fertilizer drying machine, be heated to 65 DEG C; In step S4, described temperature is reduced to 55 DEG C.
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| CN104072271A (en) * | 2014-06-10 | 2014-10-01 | 合肥江氏农业科技有限公司 | Modified-polyvinyl alcohol-coated long-effect slow-release compound fertilizer |
| CN104030813A (en) * | 2014-06-11 | 2014-09-10 | 合肥江氏农业科技有限公司 | Active controlled-release composite fertilizer containing wine cellar mud |
| CN104609975A (en) * | 2015-02-04 | 2015-05-13 | 昌吉市中科菲力信息技术有限公司 | Special fertilizer for fresh ginger 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 |
| CN107082709A (en) * | 2017-06-23 | 2017-08-22 | 合肥市风达农业有限责任公司 | A kind of cotton planting slow-release fertilizer |
| CN107188721A (en) * | 2017-07-12 | 2017-09-22 | 安徽省司尔特肥业股份有限公司 | One grows cotton special carbon-base slow release compound fertilizer and its preparation system and method |
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| CN102731208B (en) * | 2012-06-27 | 2013-11-06 | 安徽省司尔特肥业股份有限公司 | Special composite particle slow-release fertilizer for rape, and preparation method thereof |
| CN102795946A (en) * | 2012-07-27 | 2012-11-28 | 山东农大肥业科技有限公司 | Formulation and preparation method of humic acid sustained release fertilizer for double-activity and double-effect cotton |
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