CN102515981A - Special-purposed onobrychis viciaefolia long-acting biological controlled-release fertilizer, preparation method thereof, and application thereof - Google Patents
Special-purposed onobrychis viciaefolia long-acting biological controlled-release fertilizer, preparation method thereof, and application thereof Download PDFInfo
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Abstract
The invention relates to a special-purposed onobrychis viciaefolia long-acting biological controlled-release fertilizer, a preparation method thereof, and an application thereof. The fertilizer is prepared from raw materials of a urea-coated nitragin composition, sulfur and high-molecular polymer coated urea, 7% recycled thermoplastic resin coated urea, 10% recycled thermoplastic resin coated urea, 7% modified epoxy resin coated diammonium phosphate with urea undercoat, 12% modified epoxy resin coated diammonium phosphate with urea undercoat, a nitrogen-phosphorus-potassium element composite fertilizer, and diammonium phosphate. According to the invention, nitragin is combined with the controlled-release fertilizer. According to nutrient absorption regularity of onobrychis viciaefolia, the ratio of nitrogen, phosphorus and potassium is reasonably allocated, and the coated controlled-release fertilizers with different nutrient releasing periods are allocated, such that the special-purposed onobrychis viciaefolia long-acting controlled-release fertilizer is prepared. The fertilizer provides double functions of inoculation and fertilization when applied once. With the fertilizer, a manurial effect time can be prolonged, application frequency can be reduced, and onobrychis viciaefolia yield can be improved.
Description
Technical field
The present invention relates to a kind of fertilizer, particularly a kind of sainfoin control released fertilizer special and preparation and application that contains nitragin belongs to release and release control fertilizer production and applied technical field.
Background technology
Sainfoin (Onobrychic vicaefolia) is called as " herbage queen "; Be a kind of perennial leguminous herbaceous plant, nutritive ingredient is complete, balanced, livestock happiness food; The sainfoin gross protein value is higher; Mineral element content is also very abundant, and feeding value is higher, and all kinds of livestock and poultries are all liked food.Stalk behind the receipts seed also is the good roughage of horse, ox, sheep.No matter clean culture still is and the graminous pasture mixed seeding, and its hay and seed production are all higher, contain the necessary multiple amino acids of livestock and poultry in the forage grass.Sainfoin is cold-resistant, drought-resistant ability is strong, and output is high, and seed maturity is early once planted 4-6 capable of using, is China one of herbages that the ground development is very fast, the artificial growth area is maximum such as Xinjiang, Gansu, Inner Mongol, Ningxia in recent years.
Conventional art thinks that sainfoin belongs to leguminous plants, and its root growth has root nodule, has the effect of nitrogen in the fixed air, generally need not apply fertilizer, particularly without nitrogen fertilizer application.Current research in recent years shows that applied nitrogen and phosphate fertilizer, particularly both combinations are used can obviously increase grass yield, and can improve the output and the quality of sainfoin seed.
Because the deficiency or the kind of root nodule bacterium quantity are good inadequately in the soil, the inoculation root nodule bacterium are to improve the sainfoin root nodule numbers, increase nitrogen fixing capacity, promote that sainfoin is healthy, the important measures of good growth.State such as the U.S., Canada root nodule bacterium are used more general, and China is because the sainfoin plantation time limit is short, and legume inoculation is used less.
Sainfoin is a kind of perennial plant, and planting density is big, and distance between the ridges is little, and the manuring late difficulty is big.Simultaneously, it is many less that sainfoin is planted regional people, and lack of labor if use quick acting fertilizer, because its fertilizer efficiency is short, needs frequent fertilising could satisfy sainfoin and absorbs requirement, also increases labour cost to a certain extent.Do not see at present about the special-purpose fertile patent documentation of sainfoin open as yet.
Controlled release fertilizer has the function that the control nutrient discharges; Particularly to add high molecular polymer bilayer coating controlled-release fertilizer controlled-release effect good for the recovery thermoplastic resin membrane wrapping control-releasing fertilizer of scale operation at present and sulphur, and the controlled release time is long, under the condition that temperature is lower in the sainfoin main producing region, rainfall is less; Its nutrient controlled release time in soil can reach 2 to 3 years; Can effectively reduce fertilizer application frequency, and can reduce nutrient loss, improve fertilizer utilization efficiency.
Summary of the invention
To the deficiency of prior art, the present invention provides the biological controlled-released fertilizer of a kind of sainfoin long-acting special and preparation and application.
The present invention combines the root nodule bacterium technology with the controlled release fertilizer technology; And according to the coating controlled-release fertilizer of law of nutritive absorption reasonable disposition nitrogen, phosphorus, potash fertilizer ratio and the Different Nutrients release period of sainfoin; Form applied once; Sainfoin long-acting special release and release control fertilizer with inoculation and fertilising dual-use function can be realized prolonging the fertilizer efficiency time, reduces fertilizer application frequency, improve sainfoin output through field experiment.
Technical scheme of the present invention is following:
The biological controlled-released fertilizer of sainfoin long-acting special, raw materials quality part is following:
100～170 parts of urea coated nitragin compsns,
Sulphur adds 50～100 parts of high molecular polymer coated carbamides,
7% reclaims 50～80 parts in thermoplastic resin membrane wrapping urea,
10% reclaims 100～150 parts in thermoplastic resin membrane wrapping urea,
100～150 parts of urea undercoat 7% modified epoxy resin integument diammonium phosphate,
130～170 parts of urea undercoat 12% modified epoxy resin integument diammonium phosphate,
230～280 parts of nitrogen phosphorus potassium three plain composite fertilizers,
60～100 parts of diammonium phosphate.
Said urea coated nitragin compsn prepares by following method: prepare the root nodule bacterium fermented liquid of sainfoin by the prior art liquid fermenting earlier; Adsorb said root nodule bacterium fermented liquid with the turfy soil after the sterilization again and get the solid nitragin, the mass ratio of said root nodule bacterium fermented liquid and turfy soil is 1: 2.5～4; Add 3～6% ferrous sulfate of gained solid nitragin quality and 1～2% ammonium molybdate; Mix; 40 ℃～50 ℃ granulations must be mixed the nitragin particle of molybdenum-iron, are sprayed on this particle surface with fused urea at last; Form urea coated layer, get urea coated nitragin compsn; Wherein urea coated layer accounts for 7～10wt% of urea coated nitragin granular mass.
It is to be nuclear core fertilizer with the granular urea that said sulphur adds the high molecular polymer coated carbamide, and spraying inner cladding sulphur film sprays the surrounding layer polymer membrane again and makes earlier; Wherein, It is 20% that inner cladding sulphur mould material accounts for nuclear core fertilizer urea quality per-cent; Polymer membrane accounts for 3% of total mass behind the urea bag sulphur, and is preferred, high polymer film-coated dose of mixing that is novolac epoxy and triethylene tetramine with 9: 1 mass ratioes.The preparation method is referring to CN1246265C (200410024050.X) " is the preparation method of the high polymer film-coated controlled release fertilizer of undercoat with sulphur ", and the present invention quotes the full text of this patent document as prior art.Wherein, the preferred granular urea of nuclear core fertilizer urea, 2～3 millimeters of particle diameters.
It is outside granular urea nuclear core fertilizer, to spray the recovery waste thermoplastic resin coating agent that accounts for nuclear core fertilizer quality 7%, 10% respectively to make that described 7% recovery thermoplastic resin membrane wrapping urea, 10% reclaims thermoplastic resin membrane wrapping urea.The agent of said recovery waste thermoplastic resin coating is; By mass parts with 9 parts of 9 parts of the polystyrene foam resins, the polyvinylidene film resins that reclaim mixture, in the mixed solvent of miscible together zellon and 1: 1 volume ratio of methylene dichloride in 150 parts with 1.5 parts zeyssatite, Semen Maydis powder and 2: 1: 2 mass ratioes of rubber powder.The preparation method is referring to CN 1257136C (200410035783.3) " is the working method of the film-coated controlled release fertilizer of degradable membrane to reclaim thermoplastic resin ".
Described urea undercoat 7% modified epoxy resin integument diammonium phosphate, urea undercoat 12% modified epoxy resin integument diammonium phosphate are; Outside nuclear core fertiliser granulates diammonium phosphate, spray inner cladding urea earlier, spray the agent of surrounding layer modified epoxy resin integument again and make.Inner cladding urea accounts for 6% of nuclear core fertilizer quality, and the surrounding layer modified epoxy accounts for 7% and 12% of nuclear core fertilizer quality respectively.Wherein, Preferably; Said modified epoxy resin integument agent prepares by following method: epoxy resin E-44 and polyurethane PU R are mixed and made into modified epoxy with 9: 1 mass ratioes, add and account for modified epoxy quality 10wt% solidifying agent, 15wt% thinner and 1wt% wilkinite and be mixed and made into.Wherein said solidifying agent, thinner are selected special preferred consolidation agent T-593, thinner benzyl glycidyl ether by this area is conventional.The preparation method is referring to CN 1246264C (200410024049.7) " is the modified epoxy resin integument release and release control fertilizer of undercoat with spraying urea ".
More than the fertile raw material of various controlled releases Shandong Kingenta Bio-engineering Stock Co., Ltd. all have to produce and sell, carry out composite after can directly buying.
In the said n-p-k three elements composite fertilizer, nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide content are respectively 15%, 15%, 15%, are mass percent, the commercially available prod.Said diammonium phosphate, commercially available prod, 2～4 millimeters of particle diameters.
According to the present invention, preferred, the biological controlled-released fertilizer of sainfoin long-acting special, raw materials quality part is following:
115～125 parts of urea coated nitragin compsns,
Sulphur adds 78～82 parts of high molecular polymer coated carbamides,
7% reclaims 68～72 parts in thermoplastic resin membrane wrapping urea,
10% reclaims 115～125 parts in thermoplastic resin membrane wrapping urea,
105～115 parts of urea undercoat 7% modified epoxy resin integument diammonium phosphate,
155～165 parts of urea undercoat 12% modified epoxy resin integument diammonium phosphate,
240～260 parts of n-p-k three elements composite fertilizers,
85～95 parts of diammonium phosphate.
The preparation method of the biological controlled-released fertilizer of sainfoin long-acting special of the present invention, step is following:
(1) urea coated nitragin preparation of compositions:
A, by the root nodule bacterium fermented liquid of prior art for preparing sainfoin.The present invention is a preferred version with the method among the embodiment 1.
B, by sainfoin root nodule bacterium fermented liquid: the turfy soil after the sterilization=1: 2.5～4 mass ratioes, adsorb said fermented liquid with the turfy soil after the sterilization and get the solid nitragin.
C, 3～6% the ferrous sulfate that in the solid nitragin of step B preparation, adds gained solid nitragin quality and 1～2% ammonium molybdate; Mix; Must mix the nitragin of molybdenum-iron, under 40 ℃～50 ℃ conditions, utilize disk or cylinder to cause round shaped grain then, 2～4 millimeters of particle diameters; Water cut 25～30wt% must mix the nitragin particle of molybdenum-iron;
D, urea melting is become urea liquid, spray on the nitragin particle of mixing molybdenum-iron that rotates, promptly get urea coated nitragin compsn after the cooling, urea quality accounts for 7～10% of the nitragin granular mass of mixing molybdenum-iron.
(2) urea coated nitragin compsn, sulphur are added high molecular polymer coated carbamide, 7% and reclaim thermoplastic resin membrane wrapping urea, 10% and reclaim thermoplastic resin membrane wrapping urea, urea undercoat 7% modified epoxy resin integument diammonium phosphate, urea undercoat 12% modified epoxy resin integument diammonium phosphate, n-p-k three elements composite fertilizer, diammonium phosphate and put into stirrer together by proportioning and stirred 5～7 minutes, fully mixing promptly gets.Then the fertilizer that mixes is measured, packs.
In the aforesaid method, the used root nodule bacterium bacterial classification of preparation root nodule bacterium fermented liquid is a prior art among step (1) A, can all can use with the bacterial strain of sainfoin symbiotic nitrogen fixation.Preferably, Chinese agriculture microbial strains preservation administrative center ACCC is numbered one of 19600,19601,19602,19603,19604,19605,19606 root nodule bacterium (Rhizobium).
The application of the biological controlled-released fertilizer of sainfoin long-acting special of the present invention is evenly spread fertilizer over the fields in ground before the sainfoin sowing, is turned over to bury and afterwards sow.Fertilizer amount, folding synthetic nitrogen, phosphorus, potassium total amount, 80～100 kilograms every mu.The fertilizer validity period is 3 years, needn't topdress in 3 years.
Excellent results of the present invention is following:
1, applies fertilizer, inoculates disposable completion
Fertilizer of the present invention cooperatively interacts root nodule bacterium and fertilizer, applies fertilizer, inoculates disposable completion, and root nodule bacterium are directly executed at the main root region soil of sainfoin, improves inoculation efficient, increases sainfoin output.
2, root nodule bacterium are wrapped, and reduce Effect of Environmental
Root nodule bacterium are the thalline of living, and its activity is affected by environment easily, and like temperature, illumination etc., root nodule bacterium are wrapped in the fertilizer of the present invention, can reduce Effect of Environmental, prolong working lipe.
3, improve the fertilizer nutrient utilising efficiency
Nitrogen in the fertilizer of the present invention, phosphorus nutrient are main with the controlled release state, can satisfy sainfoin and absorb requirement, can reduce the loss that fertilizer causes because of fixing, loss, volatilization etc. again, improve fertilizer utilization efficiency.
4, reduce fertilizer application frequency, save labour cost
The fertilizer efficiency time of the present invention is long, and fertilizer application frequency is few, has practiced thrift labour cost.
Embodiment
Below in conjunction with embodiment the present invention is further specified, but be not limited thereto.Raw material consumption umber among the embodiment is mass parts, and all per-cents are mass percent.Used root nodule bacterium bacterial classification is that Chinese agriculture microbial strains preservation administrative center bacterium numbering is one of ACCC19601, ACCC19605 root nodule bacterium (Rhizobium) among the embodiment.Turfy soil: sea, Jilin farsighted turfy soil development company, organic content is greater than 70wt%.
Sulphur adds high molecular polymer coated carbamide, 7% and reclaims thermoplastic resin membrane wrapping urea, 10% recovery thermoplastic resin membrane wrapping urea, urea undercoat 7% modified epoxy resin integument diammonium phosphate, urea undercoat 12% modified epoxy resin integument diammonium phosphate, and Shandong Kingenta Bio-engineering Stock Co., Ltd. produces:
It is 20% that the inner cladding sulphur mould material that said sulphur adds the high molecular polymer coated carbamide accounts for nuclear core fertilizer urea quality per-cent; Polymer membrane accounts for 3% of total mass behind the urea bag sulphur, high polymer film-coated dose of mixing that is novolac epoxy and triethylene tetramine with 9: 1 mass ratioes.
It is outside granular urea nuclear core fertilizer, to spray the recovery waste thermoplastic resin coating agent that accounts for nuclear core fertilizer quality 7%, 10% respectively to make that described 7% recovery thermoplastic resin membrane wrapping urea, 10% reclaims thermoplastic resin membrane wrapping urea.The agent of said recovery waste thermoplastic resin coating is; By mass parts with 9 parts of 9 parts of the polystyrene foam resins, the polyvinylidene film resins that reclaim mixture, in the mixed solvent of miscible together zellon and 1: 1 volume ratio of methylene dichloride in 150 parts with 1.5 parts zeyssatite, Semen Maydis powder and 2: 1: 2 mass ratioes of rubber powder.
Described urea undercoat 7% modified epoxy resin integument diammonium phosphate, urea undercoat 12% modified epoxy resin integument diammonium phosphate be inner cladding urea account for nuclear core fertilizer quality 6%, the surrounding layer modified epoxy accounts for 7%, 12% of nuclear core fertilizer quality respectively.Wherein, Said modified epoxy resin integument agent prepares by following method: epoxy resin E-44 and polyurethane PU R are mixed and made into modified epoxy with 9: 1 mass ratioes, add and account for modified epoxy quality 10wt% solidifying agent T-593,15wt% thinner benzyl glycidyl ether and 1wt% wilkinite and be mixed and made into.
Embodiment 1: the biological controlled-released fertilizer of sainfoin long-acting special, and feed composition is following:
Urea coated nitragin compsn 150kg,
Sulphur adds high molecular polymer coated carbamide 50kg,
7% reclaims thermoplastic resin membrane wrapping urea 80kg,
10% reclaims thermoplastic resin membrane wrapping urea 100kg,
Urea undercoat 7% modified epoxy resin integument diammonium phosphate 150kg,
Urea undercoat 12% modified epoxy resin integument diammonium phosphate 130kg,
N-p-k three elements composite fertilizer 280kg,
Diammonium phosphate 60kg.
The preparation method:
(1) urea coated nitragin preparation of compositions:
The root nodule bacterium fermented liquid of A, preparation sainfoin:
By prior art, with the ACCC19601 root nodule bacterium of buying (separation) from the sainfoin root nodule with slant medium activation 4 days, 25 ℃ of activation temperatures.Described slant culture based formulas is: N.F,USP MANNITOL 11.5 grams, yeast powder 1.2 grams, potassium primary phosphate 0.5 gram, MAGNESIUM SULPHATE HEPTAHYDRATE 99.5 0.2 gram, sodium-chlor 0.15 gram, agar 14 grams, water 1000 grams, pH value 7.0～7.2.
The liquid culture root nodule bacterium: culture medium prescription is yeast powder 5 grams, glucose 15 grams, potassium primary phosphate 0.5 gram, MAGNESIUM SULPHATE HEPTAHYDRATE 99.5 0.2 gram, sodium-chlor 0.1 gram, calcium chloride 0.1 gram, water 1000 grams.Heating is dissolved all the components, is divided in 3 500 milliliters of triangular flasks, and sterilization is 30 minutes under 0.11 MPa pressure, is prepared into the shake-flask culture base, after the cooling above-mentioned activated spawn is inserted, and cultivates 4 days for 28 ℃, 120 rev/mins; Root nodule bacterial classification that again will be behind shake-flask culture changes in the fermentor tank with the inoculum size of 2wt%, and fermentation tank culture medium is identical with the shake-flask culture base, cultivated 3 days for 28 ℃, the root nodule bacterium fermented liquid of sainfoin.
B, get in the turfy soil after 40 kilograms of sainfoin root nodule bacterium fermented liquids add 130 kilograms of sterilizations thorough mixing.
C, get 8.5 kilograms of ferrous sulfate and 3 kilograms of ammonium molybdates add in the mixture of step B preparation, mix.The gained mixture is moved into granulation in the granulating disc, 40 ℃～50 ℃ of bake out temperatures, 2～4 millimeters of particle diameters must be mixed the nitragin particle of molybdenum-iron, finished particle water cut 26.4wt%.
D, get 14.5 kilograms in urea and put in the urea melting device; Flashmelt becomes urea liquid; Utilize pressure pump that urea liquid is sprayed on the nitragin particle of mixing molybdenum-iron of twirl through the form of shower nozzle with atomizing, promptly get urea coated nitragin compsn after the cooling.
(2) 150 kilograms of urea coated nitragin compsns, sulphur are added 50 kilograms of high molecular polymer coated carbamides, 7% and reclaim 80 kilograms in thermoplastic resin membrane wrapping urea, 10% 100 kilograms in recovery thermoplastic resin membrane wrapping urea, 150 kilograms of urea undercoat 7% modified epoxy resin integument diammonium phosphate, 130 kilograms of urea undercoat 12% modified epoxy resin integument diammonium phosphate, 280 kilograms of n-p-k three elements composite fertilizers, 60 kilograms of diammonium phosphate; Put into stirrer together and stirred 5 minutes, fully mixing promptly gets.Then the fertilizer that mixes is measured, packs.
Embodiment 2: the biological controlled-released fertilizer of sainfoin long-acting special, and feed composition is following:
Urea coated nitragin compsn 120kg,
Sulphur adds high molecular polymer coated carbamide 80kg,
7% reclaims thermoplastic resin membrane wrapping urea 70kg,
10% reclaims thermoplastic resin membrane wrapping urea 120kg,
Urea undercoat 7% modified epoxy resin integument diammonium phosphate 110kg,
Urea undercoat 12% modified epoxy resin integument diammonium phosphate 160kg,
N-p-k three elements composite fertilizer 250kg,
Diammonium phosphate 90kg.
The preparation method is with embodiment 1.
Embodiment 3: the biological controlled-released fertilizer of sainfoin long-acting special, and feed composition is following:
Urea coated nitragin compsn 100kg,
Sulphur adds high molecular polymer coated carbamide 100kg,
7% reclaims thermoplastic resin membrane wrapping urea 60kg,
10% reclaims thermoplastic resin membrane wrapping urea 150kg,
Urea undercoat 7% modified epoxy resin integument diammonium phosphate 130kg,
Urea undercoat 12% modified epoxy resin integument diammonium phosphate 150kg,
N-p-k three elements composite fertilizer 230kg,
Diammonium phosphate 80kg.
The preparation method:
(1) urea coated sainfoin nitragin preparation of compositions:
The root nodule bacterium fermented liquid preparation method of A, sainfoin is with embodiment 1.Different is to use ACCC19605 root nodule bacterium (separating from the sainfoin root nodule).
B, 30 kilograms of root nodule bacterium fermented liquids getting sainfoin add in the turfy soil after 90 kilograms of sterilizations, thorough mixing.
C, get 4 kilograms of ferrous sulfate and 1.5 kilograms of ammonium molybdates add in the mixture of step B preparation, mix.The mixture of preparation is moved into granulation in the granulating disc, 40 ℃～50 ℃ of bake out temperatures, 2～4 millimeters of particle diameters must be mixed the nitragin particle of molybdenum-iron, finished particle water cut 27.6wt%.
D, get 9 kilograms in urea and put in the urea melting device; Flashmelt becomes urea liquid; Utilize pressure pump that urea liquid is sprayed on the nitragin particle of mixing molybdenum-iron of twirl through the form of shower nozzle with atomizing, promptly get urea coated sainfoin nitragin compsn after the cooling.
(2) 100 kilograms of urea coated nitragin compsns, sulphur are added 100 kilograms of high molecular polymer coated carbamides, 7% and reclaim 60 kilograms in thermoplastic resin membrane wrapping urea, 10% 150 kilograms in recovery thermoplastic resin membrane wrapping urea, 130 kilograms of urea undercoat 7% modified epoxy resin integument diammonium phosphate, 150 kilograms of urea undercoat 12% modified epoxy resin integument diammonium phosphate, 230 kilograms of n-p-k three elements composite fertilizers, 80 kilograms of diammonium phosphate; Put into stirrer together and stirred 7 minutes, fully mixing promptly gets.Then the fertilizer that mixes is measured, packs.
Embodiment 4: the biological controlled-released fertilizer of sainfoin long-acting special, and feed composition is following:
Urea coated nitragin compsn 170kg,
Sulphur adds high molecular polymer coated carbamide 60kg,
7% reclaims thermoplastic resin membrane wrapping urea 50kg,
10% reclaims thermoplastic resin membrane wrapping urea 110kg,
Urea undercoat 7% modified epoxy resin integument diammonium phosphate 140kg,
Urea undercoat 12% modified epoxy resin integument diammonium phosphate 140kg,
N-p-k three elements composite fertilizer 260kg,
Diammonium phosphate 70kg.
The preparation method is with embodiment 3.
Comparative Examples: n-p-k three elements composite fertilizer, nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide quality percentage composition are respectively 15%, 15%, 15%.
The effect of above embodiment 1～4 and Comparative Examples is following:
Test place: Pingan County, Qinghai Province, Gansu Province's Gonghe County.
Test period: year September in April, 2008 to 2011.
Supply examination sainfoin kind: the Pingan County is with " common sainfoin ", and Gonghe County is with " Caucasia sainfoin ".
Embodiment 1-4 and Comparative Examples fertilizer nitrogen, phosphorus, potassium total nutrient consumption are identical, 90 kilograms every mu.Embodiment fertilizer and Comparative Examples fertilizer application process all are before the sainfoin sowing, evenly to spread fertilizer over the fields in ground, turn over to bury and afterwards sow.Effect is seen table 1.
Table 1. is compared the application effect of embodiment 1-4 with Comparative Examples
Claims (5)
1. the biological controlled-released fertilizer of sainfoin long-acting special is characterized in that raw materials quality part is following:
100～170 parts of urea coated nitragin compsns,
Sulphur adds 50～100 parts of high molecular polymer coated carbamides,
7% reclaims 50～80 parts in thermoplastic resin membrane wrapping urea,
10% reclaims 100～150 parts in thermoplastic resin membrane wrapping urea,
100～150 parts of urea undercoat 7% modified epoxy resin integument diammonium phosphate,
130～170 parts of urea undercoat 12% modified epoxy resin integument diammonium phosphate,
230～280 parts of n-p-k three elements composite fertilizers,
60～100 parts of diammonium phosphate;
Said urea coated nitragin compsn prepares by following method: prepare the root nodule bacterium fermented liquid of sainfoin by the prior art liquid fermenting earlier; Adsorb said root nodule bacterium fermented liquid with the turfy soil after the sterilization again and get the solid nitragin, the mass ratio of said root nodule bacterium fermented liquid and turfy soil is 1: 2.5～4; Add 3～6% ferrous sulfate of gained solid nitragin quality and 1～2% ammonium molybdate; Mix; 40 ℃～50 ℃ granulations must be mixed the nitragin particle of molybdenum-iron, are sprayed on this particle surface with fused urea at last; Form urea coated layer, get urea coated nitragin compsn; Wherein urea coated layer accounts for 7～10wt% of urea coated nitragin granular mass;
It is to be nuclear core fertilizer with the granular urea that said sulphur adds the high molecular polymer coated carbamide, and spraying inner cladding sulphur film sprays the surrounding layer polymer membrane again and makes earlier; Wherein, It is 20% that inner cladding sulphur mould material accounts for nuclear core fertilizer urea quality per-cent; Polymer membrane accounts for 3% of total mass behind the urea bag sulphur, said high polymer film-coated dose of mixing that is novolac epoxy and triethylene tetramine with 9: 1 mass ratioes;
It is outside granular urea nuclear core fertilizer, to spray the recovery waste thermoplastic resin coating agent that accounts for nuclear core fertilizer quality 7%, 10% respectively to make that described 7% recovery thermoplastic resin membrane wrapping urea, 10% reclaims thermoplastic resin membrane wrapping urea.The agent of said recovery waste thermoplastic resin coating is; By mass parts with 9 parts of 9 parts of the polystyrene foam resins, the polyvinylidene film resins that reclaim mixture, in the mixed solvent of miscible together zellon and 1: 1 volume ratio of methylene dichloride in 150 parts with 1.5 parts zeyssatite, Semen Maydis powder and 2: 1: 2 mass ratioes of rubber powder;
Described urea undercoat 7% modified epoxy resin integument diammonium phosphate, urea undercoat 12% modified epoxy resin integument diammonium phosphate are; Outside nuclear core fertiliser granulates diammonium phosphate, spray inner cladding urea earlier, spray the agent of surrounding layer modified epoxy resin integument again and make; Inner cladding urea accounts for 6% of nuclear core fertilizer quality, and the surrounding layer modified epoxy accounts for 7%, 12% of nuclear core fertilizer quality respectively; Said modified epoxy resin integument agent prepares by following method: epoxy resin E-44 and polyurethane PU R are mixed and made into modified epoxy with 9: 1 mass ratioes, add and account for modified epoxy quality 10wt% solidifying agent, 15wt% thinner and 1wt% wilkinite and be mixed and made into.
2. the biological controlled-released fertilizer of sainfoin long-acting special as claimed in claim 1 is characterized in that raw materials quality part is following:
115～125 parts of urea coated nitragin compsns,
Sulphur adds 78～82 parts of high molecular polymer coated carbamides,
7% reclaims 68～72 parts in thermoplastic resin membrane wrapping urea,
10% reclaims 115～125 parts in thermoplastic resin membrane wrapping urea,
105～115 parts of urea undercoat 7% modified epoxy resin integument diammonium phosphate,
155～165 parts of urea undercoat 12% modified epoxy resin integument diammonium phosphate,
240～260 parts of n-p-k three elements composite fertilizers,
85～95 parts of diammonium phosphate.
3. the preparation method of claim 1 or the biological controlled-released fertilizer of 2 said sainfoin long-acting specials, step is following:
(1) urea coated nitragin preparation of compositions:
A, by the fermentation of the root nodule bacterium of prior art for preparing sainfoin;
B, by sainfoin root nodule bacterium fermented liquid: the turfy soil after the sterilization=1: 2.5～4 mass ratioes, adsorb said fermented liquid with the turfy soil after the sterilization and get the solid nitragin;
C, 3～6% the ferrous sulfate that in the solid nitragin of step B preparation, adds gained solid nitragin quality and 1～2% ammonium molybdate; Mix; Must mix the nitragin of molybdenum-iron, under 40 ℃～50 ℃ conditions, utilize disk or cylinder to cause round shaped grain then, 2～4 millimeters of particle diameters; Water cut 25～30wt% must mix the nitragin particle of molybdenum-iron;
D, urea melting is become urea liquid, spray on the nitragin particle of mixing molybdenum-iron that rotates, promptly get urea coated nitragin compsn after the cooling, urea quality accounts for 7～10% of the nitragin granular mass of mixing molybdenum-iron;
(2) urea coated nitragin compsn, sulphur are added high molecular polymer coated carbamide, 7% and reclaim thermoplastic resin membrane wrapping urea, 10% and reclaim thermoplastic resin membrane wrapping urea, urea undercoat 7% modified epoxy resin integument diammonium phosphate, urea undercoat 12% modified epoxy resin integument diammonium phosphate, n-p-k three elements composite fertilizer, diammonium phosphate and put into stirrer together by proportioning and stirred 5～7 minutes, fully mixing promptly gets.
4. like the preparation method of the biological controlled-released fertilizer of the said sainfoin long-acting special of claim 3, it is characterized in that the used root nodule bacterium bacterial classification of preparation root nodule bacterium fermented liquid is that Chinese agriculture microbial strains preservation administrative center ACCC is numbered one of 19600,19601,19602,19603,19604,19605,19606 root nodule bacterium (Rhizobium) among step (1) A.
5. the application of claim 1 or the biological controlled-released fertilizer of 2 said sainfoin long-acting specials is evenly spread fertilizer over the fields in ground before the sainfoin sowing, is turned over to bury and afterwards sow; Fertilizer amount, folding synthetic nitrogen, phosphorus, potassium total amount, 80～100 kilograms every mu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104120117A CN102515981B (en) | 2011-12-09 | 2011-12-09 | Special-purposed onobrychis viciaefolia long-acting biological controlled-release fertilizer, preparation method thereof, and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104120117A CN102515981B (en) | 2011-12-09 | 2011-12-09 | Special-purposed onobrychis viciaefolia long-acting biological controlled-release fertilizer, preparation method thereof, and application thereof |
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| Publication Number | Publication Date |
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| CN102515981A true CN102515981A (en) | 2012-06-27 |
| CN102515981B CN102515981B (en) | 2013-04-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102826937A (en) * | 2012-09-19 | 2012-12-19 | 山东金正大生态工程股份有限公司 | Molybdenum-rich special controlled-release fertilizer for leguminous crops, and preparation method and application thereof |
| CN107556099A (en) * | 2017-09-06 | 2018-01-09 | 甘肃农业大学 | Special hybrid bacterial strain microbial manure of a kind of sainfoin and preparation method thereof |
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| CN102153406A (en) * | 2010-12-21 | 2011-08-17 | 菏泽金正大生态工程有限公司 | Special controlled release fertilizer for preventing and treating root diseases of hot peppers and preparation method of special controlled release fertilizer |
| CN102173961A (en) * | 2010-12-23 | 2011-09-07 | 菏泽金正大生态工程有限公司 | Disease-preventing type controlled release fertilizer special for Xinjiang cotton, and preparation method and application thereof |
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| CN1104196A (en) * | 1993-12-22 | 1995-06-28 | 黄明和 | Active column-type chengji full importance fertilizer |
| CN101194567A (en) * | 2008-01-03 | 2008-06-11 | 中国农业大学 | Method for improving production volume and quality of alfalfa seed |
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| CN102153406A (en) * | 2010-12-21 | 2011-08-17 | 菏泽金正大生态工程有限公司 | Special controlled release fertilizer for preventing and treating root diseases of hot peppers and preparation method of special controlled release fertilizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102826937A (en) * | 2012-09-19 | 2012-12-19 | 山东金正大生态工程股份有限公司 | Molybdenum-rich special controlled-release fertilizer for leguminous crops, and preparation method and application thereof |
| CN107556099A (en) * | 2017-09-06 | 2018-01-09 | 甘肃农业大学 | Special hybrid bacterial strain microbial manure of a kind of sainfoin and preparation method thereof |
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| CN102515981B (en) | 2013-04-24 |
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