CN101492323A - Phosphite complex fertilizer for concurrently treating soil-borne disease of tobacco - Google Patents
Phosphite complex fertilizer for concurrently treating soil-borne disease of tobacco Download PDFInfo
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Abstract
The invention relates to a phosphite compound fertilizer for controlling the soil-borne diseases of tobaccos, comprising the following components based on the weight percentage: 1-70% of potassium hypophosphite and ammonium phosphite, 1-30% of boric fertilizer; the rest being quick-acting nitrogen and phosphorus fertilizer and determined by solubility. The phosphite has evident effects on killing or inhibiting the soil-borne disease pathogens of the crops such as ralstonia solanacearum, phytophthora of tobaccos, meloidogyne incognita chitwood and meloidogyne javanica and has evident effects on preventing and controlling the soil-borne diseases of tobaccos such as tobacco bacterial wilt, tobacco black shank and tobacco knot nematodiasis. The application of phosphite and boron compound fertilizer to the tobaccos can not only prevent and control the soil-borne diseases of tobaccos but also supplement the boric fertilizer and NPK nutrient elements necessary for the crops. At the same time, the phosphite compound fertilizer has the advantages of preventing and controlling various diseases and promoting growth of tobaccos.
Description
Technical field
The invention belongs to the agricultural fertilizer field, specifically is a kind of phosphite complex fertilizer of concurrently treating soil-borne disease of tobacco.
Background technology
Soil-borne disease is the serious Plant diseases of a class.The pathogen kind that causes soil-borne disease is a lot, comprises fungi, bacterium, nematode, virus etc., and they infect plant roots usually, cause the disease of root even complete stool, thereby cause great financial loss.After crop infects a kind of soil-borne disease, because resistibility reduces or pathogen causes wound, infect other diseases easily, several diseases increase the weight of harm each other.Because pathogen survival time in soil is long, host types is many.Cause the effect of chemical control of common fungicide low or cost is high.Have now and prevent and treat the agricultural chemicals of soil-borne disease, be primarily aimed at a kind of or a class disease, controlling object is comparatively narrow.Such as: the control tobacco bacterial wilt adopts agricultural streptomycin, control black shank to adopt metalaxyl-mn-zn, and control tobacco root knot nematode disease lacks effective agricultural chemicals of low toxicity.Lack low cost in the production, use the medicament of preventing and treating these three kinds of diseases conveniently, simultaneously.
Phosphite (English Phosphonate by name; Phosphite) be synthetic by phosphorous acid (phosphorousacid) and alkali reaction.The molecular formula of phosphorous acid is H
3PO
3Be commonly used for reductive agent and pesticide intermediate.Be used to make nylon whitening agent, stabilizer for plastics, synthon, dibasic lead phosphite, glyphosate, water conditioner ATMP.Phosphite is common two kinds of potassium phosphite and ammonium phosphites.The acid intensity and the sulfuric acid of phosphorous acid are suitable, and is stronger 5 times than phosphoric acid.Therefore, orthophosphite is easier of plant absorbing and transhipment than phosphate radical.Phosphite can not be by plant directly as the phosphate fertilizer utilization, and phosphite is oxidized to phosphoric acid salt under the effect of soil microorganisms could be by plant utilization, and therefore, the phosphite of using high density separately may delay plant-growth.After using, orthophosphite is at first absorbed by xylem, is transported to phloem then.In phloem (phloem), distribute according to " source-Ku " transhipment.Can not be oxidized to phosphoric acid by higher plant.Therefore, the lasting period is long in plant materials.The Tianjin agricultural sciences, 2004,10 (1) 1～3, " pollution-free vegetable integrated pest prevention and control measure " reported and utilized phosphorous acid control crop eqpidemic disease.CN200610038592.1, " application of potassium dihydrogen phosphite in the preparation antibacterial foliar fertilizer ", the application of phosphorous acid sylvite as sterilant disclosed, be blended in plant leaf surface with foliage fertilizer and use, have the effect of fungal diseases such as control Botrytis cinerea, sharp sickle spore bacterium.
Phosphorous acid has the effect of control Flos Pelargonii bacterial wilt in the greenhouse, see Norman D.J. for details, Chen J.Yuen J.M.F.et al.Control of bacterial wilt of geranium with phosphorous acid.Plant Disease.2006,90 (6): 798-802.
Boron is one of essential trace element of plant, plays irreplaceable effect in growth and development of plants.Boron mainly participates in cell elongation, cell fission and nucleic acid metabolism, with carbohydrate and proteinic synthetic closely related, influences tissue differentiation, influences the synthetic of phytokinin and nicotine.Boron can improve the prosperous long-term tobacco leaf chlorophyll content of tobacco, improves photosynthetic efficiency and transpiration efficiency.There are large-area low boron or boron deficient soil in China south, when the soil effective boron content is lower than 0.5mg/kg, can be considered boron deficiency.The soil of khoai comprises red earth, latosol, red soil and yellow earth etc., and effective boron content is all on the low side.It is exactly that the growth of taproot and lateral root is suppressed or stops that cigarette strain boron deficiency reacts the most rapidly, because root growth is impaired, nicotine content also is affected in the tobacco leaf.Boron deficiency makes in the phloem transportation of starch and sugar be obstructed, and causes that starch and sugar content rise in the cigarette strain.Serious boron deficiency cigarette strain short and small thin and weak, vegetative point is downright bad, leaf look chlorosis is thin out.Cigarette strain boron deficiency can cause the vascular bundle dysplasia, is subject to bacterial wilt harm.Rape, peanut and other crops cause degradation problem under output reduction, " colored and unreal ", the quality during boron deficiency.According to soil boron content situation, the crop applying boron fertilizer had tangible effect of increasing production.Boron fertilizer is a kind of middle trace element of China's amount of application maximum.
Utilize phosphite, boron fertilizer and nitrogen, phosphorus, potassium nutrition element, composite is composite fertilizer, and soil-borne disease of crop control and the volume increase of crop guarantor product are had cooperative synergism effect, does not see open report.
Goal of the invention
The objective of the invention is to propose a kind of phosphite complex fertilizer of concurrently treating soil-borne disease of tobacco, this fertilizer has nutritive elements such as boron, nitrogen, phosphorus and potassium; Prevention effect height to important soil-borne disease; Free from environmental pollution, to the agricultural-food noresidue; Cost is low, and is safe and convenient to use.
Composite fertilizer provided by the invention mainly is made up of the one-tenth branch of following weight per-cent:
Phosphorous acid sylvite and phosphorous acid ammonium salt 1～70%,
Boron fertilizer 1～30%,
Quick-acting nitrogen phosphorus fertilizer surpluses are determined according to solubleness,
More than each component concentration sum be 100%, wherein: the proportioning of phosphorous acid sylvite and phosphorous acid ammonium salt is 100: 1 to 1: 100, potassium phosphite is one of potassium phosphite or potassium dihydrogen phosphite, or the mixture of the two; Ammonium phosphate is one of hydrogen phosphite two ammoniums or dihydrogen phosphite ammonium, or the mixture of the two; Boron fertilizer is one of four water, eight Sodium Tetraboratees, boric acid or borax, or three's mixture, every mu of boron consumption 100-200g; Quick-acting nitrogen phosphorus fertilizers are potassium primary phosphate or one of ammonium phosphate or saltpetre, or three's mixture.
Composite fertilizer provided by the invention also can be made up of the one-tenth branch of following weight per-cent:
Phosphorous acid sylvite and phosphorous acid ammonium salt 40～70%,
Boron fertilizer 20～30%,
Quick-acting nitrogen phosphorus fertilizer surpluses are determined according to solubleness,
As required, composite fertilizer provided by the invention is liquid state or two kinds of physical aspects of solid, the production method of composite fertilizer: get the raw materials ready by above-mentioned component in percentage by weight,, in stirrer, do to mix forming with phosphorous acid sylvite and ammonium phosphite, boron fertilizer and quick-acting phosphate fertilizer nutrient proportioning on request.Perhaps
Phosphite, boron fertilizer and rapid available phosphorus nutriment in a fertilizer added in the entry in batches dissolve, grasp pH value of water solution between 5.0～7.5 in the reinforced process, nutrient proportioning is on request dissolved in reactor and is formed.
In the composite fertilizer of the present invention, the potassium phosphite that is adopted, ammonium phosphite are common industrial chemicals, there are Hangzhou big bright chemical industry company limited, Chongqing Chuan Dong chemical industry Group Co.,Ltd etc. in manufacturer, the intermediate raw material that is usually used in agricultural chemicals, soil-borne disease of crop is had prevention effect, can replenish crop nitrogenous fertilizer and potash fertilizer simultaneously.The potassium primary phosphate that is adopted, ammonium phosphate and saltpetre are common fertilizer, replenish crop phosphate fertilizer, nitrogenous fertilizer and potash fertilizer.Boric acid, four water eight borate two sodium, borax are common boron fertilizer, are used for crop foliar spray or root and water and execute, and replenish the plain nutrition of crop boron.All there is industrialized mass production in above raw material China, all can buy acquisition on market.
One of important technology feature of the present invention is that phosphite and boron fertilizer, quick-acting nitrogen phosphorus fertilizer are composite by a certain percentage, three compounds are composite, control to crop yield and soil-borne disease has synergistic function, can prevent soil-borne disease of crop and boron make-up, nitrogen, phosphorus, potassium nutrition.
The technical requirements of (GB/15063-2001) being put down in writing in (2001-07-26 issue, 2002-01-01 implement) according to " State Standard of the People's Republic of China " " composite fertilizer (compound manure) ": lower concentration total nutrient (N+P about composite fertilizer (compound manure)
2O
5+ K
2O) % 〉=25%, water-soluble phosphorus account for available phosphorus percentage 〉=40%.N-P-K content should meet above-mentioned standard in the multifunctional compound fertilizer of the present invention.According to this standard, the proportion relation of boron nitrogen phosphorus potassium and orthophosphite will be according to the main kind of fertile characteristic of the need of Different Crop and soil-borne disease and different in the multifunctional compound fertilizer of the present invention.
Every 667m
20.5～5 kilogram in goods of the present invention are used in the soil, convert 100～500 times of sprayings of water, or convert water and water root for 200～2000 times and use.Lasting period to the soil-borne disease control can reach 20 days.On the crop blade face or root use 1～4 time, have tangible disease-controlling effect and effect of increasing production.
Positively effect of the present invention is:
1, both can prevent and treat soil-borne disease of crop, be again readily avaiable fertilizer, can be simultaneously for crop provide boron, nitrogen, phosphorus, three kinds of fertilizer of potassium, and multiple compound is composite, to the prevention effect of soil-borne disease with promote plant growth, volume increase to have synergistic function.
2, diseases prevention and obvious effect of increasing production.When using at a kind of main disease, soil-borne disease is planted by the Zhiduo County of can holding concurrently.Potassium phosphite and ammonium phosphite have important soil-borne disease pathogen significantly to be killed or restraining effect, particularly the withered Lei Er Salmonella of green grass or young crops, Phytophthora nicotianae bacterium, Meloidogyne incognita, javanese root knot nematode is had and significantly kills or restraining effect.Therefore the soil-borne disease of crop that the withered Lei Er Salmonella of green grass or young crops, Phytophthora nicotianae bacterium, Meloidogyne incognita, javanese root knot nematode are caused has higher prevention effect, and prevention effect can reach 60%.To soil-borne disease of tobacco: tobacco bacterial wilt, black shank, tobacco root knot nematode disease have tangible prevention effect.Composite fertilizer of the present invention is crop, include but not limited to use on the tobacco, both can prevent and treat soil-borne disease of crop, can replenish the four kinds of nutritive elements of boron, nitrogen, phosphorus, potassium in the soil again, promote plant growth, have and prevent and treat multiple diseases simultaneously, promote plant growth, protect and produce volume increase, advantage that cost is low.And single agent ammonium phosphate, potassium primary phosphate etc. do not have prevention effect to soil-borne disease of crop.Single agent phosphite has lighter inhibition effect, no effect of increasing production to plant growth.Single agent boron fertilizer has effect of increasing production to rape, peanut, but does not have the effect of the soil-borne disease of preventing and treating.
3, the cooperative synergism effect of multifunctional compound fertilizer of the present invention is remarkable.The phosphatic diseases prevention mechanism in the multifunctional compound fertilizer of the present invention Central Asia is: the orthophosphite and the pathogenic bacteria of lower concentration do mutually, induce root of the crop to produce disease-resistant involved enzyme, as: ethanol dehydrogenase (CAD) and 4-coumaric acid CoA ligase (4CL)), the orthophosphite of high density directly suppresses mycelial growth.External, orthophosphite suppresses blue or green withered Lei Er Salmonella becomes no cultivation conditions, reduces the ability of this pathogen infection plant.Behind the crop applying phosphite, can reduce the nematode egg laying amount, suppress the nematode growth, make the vacuolation of crop root giant cells, cause the nematode malnutrition.Boron fertilizer can promote the photosynthesis of crop, and starch and the transportation of sugar, the differentiation of xylem work in the cigarette strain to keeping, and the control of bacterial wilt is had booster action.The ammonium phosphate that multifunctional compound fertilizer of the present invention adopted both can be crop nitrogen, phosphorus nutrition composition was provided, and promoted plant growth, reduced the restraining effect of orthophosphite to plant growth.The potassium primary phosphate that multifunctional compound fertilizer of the present invention adopted both can be crop phosphorus, potassium nutrition composition was provided, and promoted plant growth, reduced the restraining effect of orthophosphite to plant growth.Multifunctional compound fertilizer of the present invention is killed and is suppressed soil and the intravital pathogen of crop, induces boron, nitrogen, phosphorus, the potassium nutrition level making the deposits yields disease resistance, strengthen crop, three kinds of mutual synergys of effect.Therefore, to the obvious effect of increasing production of crop, the crop yield amplitude is generally more than 20%.
4, easy to use, safe.According to the occurrence characteristic of plant growth characteristics, disease, select application process and time of application.Both can use, and can convert water at root again and water and execute at foliar spray.Use 1 to 3 time in the whole crop growth phase.On tobacco, use, when the cigarette transplantation of seedlings, use for the first time, be dissolved in to water in the normal root water and execute.For the second time carry seed manure and use, convert water and water and execute with commonly used.Use with topdressing for the third time, convert water and water and execute.Each administration interval 7～30 days.Above application process merges mutually with the measure of watering of the conventional fertilizer application of tobacco cultivation, does not increase extra application process, and is easy to use.The effect of multifunctional compound fertilizer of the present invention also can well be brought into play.
5, raw material is the domestic industry batch process, and cost is low, and the source is wide, and the production technique of multifunctional compound fertilizer of the present invention is simple.
Embodiment
Embodiment 1
Get the raw materials ready by following component in percentage by weight earlier:
Potassium dihydrogen phosphite and hydrogen phosphite two ammoniums (1: 1) 975.6g
Boric acid 24.4
Secondary ammonium phosphate 0g
Get the raw materials ready by above-mentioned component in percentage by weight, branches such as potassium dihydrogen phosphite and hydrogen phosphite two ammoniums, boric acid are added in batches dissolve in 2 premium on currency, grasp pH value of water solution between 5.0～7.5 in the reinforced process.Nutrient proportioning is on request dissolved in reactor and is formed.
Embodiment 2
Get the raw materials ready by following component in percentage by weight earlier:
Potassium phosphite and dihydrogen phosphite ammonium (1: 1) 700g
Boric acid 150
Secondary ammonium phosphate 150g
Get the raw materials ready by above-mentioned component in percentage by weight, branches such as potassium dihydrogen phosphite and hydrogen phosphite two ammoniums, boric acid and Secondary ammonium phosphate are added in batches dissolve in 10 premium on currency, grasp pH value of water solution between 5.0～7.5 in the reinforced process.Nutrient proportioning is on request dissolved in reactor and is formed.Obtain 10% phosphite complex fertilizer.
Embodiment 3:
Composition weight percent (%)
Potassium dihydrogen phosphite and hydrogen phosphite two ammoniums (1: 1) 70%
Boric acid 1%
Secondary ammonium phosphate 29%
Production method is with embodiment 1.
Embodiment 4:
Composition weight percent (%)
Potassium phosphite and dihydrogen phosphite ammonium (1: 1) 1%
Boric acid 30%
Secondary ammonium phosphate 69%
Production method is with embodiment 2.
Embodiment 5:
Composition weight percent (%)
Potassium dihydrogen phosphite and hydrogen phosphite two ammoniums (1: 1) 35%
Four water, eight Sodium Tetraboratees 15%
Secondary ammonium phosphate 50%
Production method is with embodiment 2.
Embodiment 6:
Composition weight percent (%)
Potassium dihydrogen phosphite and hydrogen phosphite two ammoniums (1: 1) 35%
Borax 15%
Primary ammonium phosphate 50%
Production method is with embodiment 2.
The effect of phosphite complex fertilizer provided by the invention
Dispenser is to the preventive effect (greenhouse pot culture test) of bacterial wilt when watering normal root water
Materials and methods
Select cloud and mist 85 seedlings, transplant to the diameter 20cm flowerpot of adorning native 3.5kg, 5d adorned soil in advance before the underlay plastic pallet was transplanted, and watered and executed the Ralstonia solanacearum suspension.During transplanting, the medicament diluent is made normal root water water and execute, every strain is watered and is executed 200ml.Do not apply fertilizer in the process of the test.Transplant the incidence of the every 14d investigation in back bacterial wilt.
Handle 1:50% composite fertilizer of the present invention (hydrogen phosphite two ammoniums: potassium dihydrogen phosphite: aqueous solution boric acid=20: 20: 1), 200 times.Phosphite 1.0g, boric acid 0.05g are used in every strain.
Handle 2:50% dihydrogen phosphite aqueous solutions of potassium, 200 times.Phosphite 1.0g is used in every strain.
Handle 3:98% boric acid, 4000 times.Boric acid 0.05g is executed in every strain.
Handle 4: the clear water contrast.
Result and analysis
The greenhouse pot culture test shows: potassium dihydrogen phosphite and boric acid are respectively 25% and 32.5% to the prevention effect of bacterial wilt.Composite fertilizer of the present invention is 45% to the prevention effect of bacterial wilt.Composite fertilizer of the present invention apparently higher than potassium dihydrogen phosphite and boric acid, shows obvious role in synergism to the prevention effect of bacterial wilt, sees Table 1.
Table 1 phosphite complex fertilizer is to the prevention effect of bacterial wilt and the influence of cigarette strain growth
Dispenser is to the preventive effect of bacterial wilt and the influence (field test) of cigarette strain growth when watering normal root water
1 materials and methods
1.1 test design
10% composite fertilizer of the present invention.The contrast medicament is 72% agricultural Vetstrep (production of Shijiazhuang City, Hebei Province dawn pharmaceutical factory).Handle 1:A1,1000 times of liquid rhizospheres of 10% composite fertilizer of the present invention water to be executed; Handle 2:A2,500 times of liquid rhizospheres of 10% composite fertilizer of the present invention water to be executed; 100 times of liquid rhizospheres of processing 3:10% composite fertilizer of the present invention water to be executed; Treatments B: 500 times of liquid rhizospheres of 72% agricultural Vetstrep water to be executed; CK: blank, clear water is handled.Every strain is watered and is executed dilute liquid medicine 300mL.
Test is located at Yunnan Wenshan Prefecture Guangnan County pearl beautiful jade town white clay pool white clay well, and bacterial wilt morbidity over the years is heavier and even, and the test plot is plot, typical red-yellow soil mountain region, soil fertility is medium, and soil pH is 6.10～7.92, and transplanted seedling is cloud and mist 87 Floating seedlings, in sowing on March 1, May 18 transplanted.Mu is executed purity nitrogen 7kg (used composite fertilizer N: P: K=8: 12: 24).
Repeat for four times, completely random is arranged.1 mu of test area, every sub-district are planted cigarette 40 strains, sub-district area 25m
2, totally 20 sub-districts are set up guard rows all around, and distance between rows and hills 120 * 50cm is fine during dispenser.
Make normal root water with each processing medicament during transplanting and water Shi Yanmiao.Transplanted back 10 days, and 30 days, irritated root (preventing balck shank generation interference test result) for 100 milliliters with 500 times of liquid of 58% metalaxyl-mn-zn respectively in 50 days.Other field cultivation management is undertaken by local high-quality cigarette production technology.
1.2 bacterial wilt a situation arises the investigation
Transplant and instituted an inquiry afterwards in back 30 days, record morbidity strain number and sick level.Second from the bottom time adopt roasting before investigation 10 strains of uprooting of every sub-district, record incidence, calculating sickness rate, disease index and prevention effect.
1.3 the investigation of the investigation of cigarette strain biological character and output, the output value
Pinch in the cigarette strain and to put down in writing phosphite complex fertilizer sub-district cigarette strain growth potential one day after, investigation plant height, the number of sheets, maximum leaf length and width.Every sub-district random sampling 10 strains investigation.Put down in writing respectively during results and respectively handle sub-district yield of tobacco, the output value, different grades ratio quantity, benefit calculates the output value.
2 results and analysis
2.1 phosphite complex fertilizer is to the prevention effect of bacterial wilt
As can be seen from Table 2, adopt investigation when baking for second from the bottom time, the sickness rate and the disease index of clear water contrast bacterial wilt reach 17.5% and 13.54 respectively, and average attack rate and disease index that phosphite complex fertilizer 0.3g/ strain is handled are respectively 2.5% and 1.25, and prevention effect is 90.77% relatively.Average attack rate and disease index that phosphite complex fertilizer 0.15g/ strain is handled are respectively 5.0% and 2.5, and prevention effect is 81.54% relatively.Average attack rate and disease index that phosphite complex fertilizer 0.03g/ strain is handled are respectively 10.0% and 6.46, and prevention effect is 52.29% relatively.Average attack rate and disease index that contrast medicament 72% agricultural streptomycin is handled are respectively 15.0% and 10.0, and prevention effect is 26.14% relatively.Phosphite complex fertilizer 0.3g/ strain is handled, the 0.15g/ strain is handled, the 0.03g/ strain is handled prevention effect to bacterial wilt all apparently higher than the 72% agricultural streptomycin 0.43g/ strain of contrast medicament.
Table 2 phosphite complex fertilizer is to the prevention effect of bacterial wilt
2.2 phosphite complex fertilizer is to the influence of per mu yield, the output value
As can be seen from Table 3, per mu yield, the per mu yield value handled of phosphite complex fertilizer 0.3g/ strain is respectively 176.38kg/ mu and 2374.78 yuan/mu; Increase by 7.7% and 8.7% than the clear water contrast; Reach utmost point conspicuous level with the difference of clear water contrast.Be higher than the per mu yield value and the per mu yield of contrast medicament 72% agricultural streptomycin, but do not have statistical significant difference.The output that phosphite complex fertilizer 0.15g/ strain is handled is 174.22kg/ mu, 2348.55 yuan/mu of the output values, and the output that phosphite complex fertilizer 0.03g/ strain is handled is 172.63kg/ mu, 2332.61 yuan/mu of the output values; All be significantly higher than the per mu yield and the per mu yield value of clear water contrast, per mu yield and per mu yield value that a little higher than contrast medicament agricultural streptomycin is handled.
Per mu yield and per mu yield value that table 3 phosphite complex fertilizer is handled
In sum, phosphite complex fertilizer of the present invention has good prevention effect to soil-borne disease of tobacco, can replace the agricultural chemicals and the part chemical fertilizer of high poison, and is lower than chemical prevention expense, can promote tobacco growing, easy to use.
Claims (4)
1, a kind of phosphite complex fertilizer of concurrently treating soil-borne disease of tobacco, form by the one-tenth branch of following weight per-cent:
Phosphorous acid sylvite and phosphorous acid ammonium salt 1～70%,
Boron fertilizer 1～30%,
Quick-acting nitrogen phosphorus fertilizer surpluses are determined according to solubleness,
More than each component concentration sum be 100%, wherein: the proportioning of phosphorous acid sylvite and phosphorous acid ammonium salt is 100: 1 to 1: 100, potassium phosphite is one of potassium phosphite or potassium dihydrogen phosphite, or the mixture of the two; Ammonium phosphate is one of hydrogen phosphite two ammoniums or dihydrogen phosphite ammonium, or the mixture of the two; Boron fertilizer is one of four water, eight Sodium Tetraboratees, boric acid or borax, or three's mixture, every mu of boron consumption 100-200g; Quick-acting nitrogen phosphorus fertilizers are potassium primary phosphate or one of ammonium phosphate or saltpetre, or three's mixture.
2, a kind of composite fertilizer as claimed in claim 1 is characterized in that being made up of the one-tenth branch of following weight per-cent:
Phosphorous acid sylvite and phosphorous acid ammonium salt 40～70%,
Boron fertilizer 20～30%,
Quick-acting nitrogen phosphorus fertilizer surpluses are determined according to solubleness.
3, a kind of production method of composite fertilizer as claimed in claim 1, it is characterized in that: get the raw materials ready by above-mentioned component in percentage by weight, with phosphorous acid sylvite and ammonium phosphite, boron fertilizer and quick-acting phosphate fertilizer nutrient proportioning on request, in stirrer, do to mix forming.
4, a kind of production method of composite fertilizer as claimed in claim 1, it is characterized in that: get the raw materials ready by above-mentioned component in percentage by weight, phosphite, boron fertilizer and rapid available phosphorus nutriment in a fertilizer added in the entry in batches dissolve, grasp pH value of water solution between 5.0～7.5 in the reinforced process, nutrient proportioning is on request dissolved in reactor and is formed.
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