57 results about "Potassium phosphite" patented technology

A process for the manufacture of an aqueous composition that is a combination of a fungicide and fertilizer comprising the following steps:(1) dissolving phosphorous acid in phosphoric acid to form a solution of an acid mixture;(2) reacting the acid mixture of step (1) with an aqueous potassium hydroxide solution at a temperature of about 65° C. to about 260° C. in a continuous reactor while maintaining the ratio of potassium to phosphorous in various mole ratios thereby forming a reaction mixture comprising potassium phosphates, potassium polyphosphates, potassium phosphites, and potassium polyphosphites and potassium phosphate phosphite copolymers; and,(3) cooling the reaction mixture rapidly at least 1° C. to 60° C., to below about 35° C. to about 65° C.Using a similar process a composition having fungicidal properties is prepared by reaction phosphoric acid with potassium hydroxide.The reaction mixtures prepared according to each of the above processes are also part of this invention.

A composition which provides bactericidal, fungicidal and insecticidal activity when treating plants with effective amounts. The composition comprises the blending of: (1) an aqueous salicylate solution from salicylic acid reacted in an aqueous media with ammonium hydroxide and potassium hydroxide; (2) a reaction mixture that provides fungicidal activity and fertilizes plants when applied in an effective amount and which comprises potassium phosphates, potassium polyphosphate, potassium phosphites, and potassium polyphosphite and potassium phosphate phosphite copolymers; and, optionally, (3) aqueous potassium acetate.

The invention provides a method for cultivating healthy grafting seedlings of cucumbers. Turf, vermiculite and pearlite are mixed according to the volume ratio of 6:3:1 to prepare seedling cultivating substrates, teaselgourd in Africa is selected as stock, and the operation of raising seedlings by grafting in plug trays is performed; the stock is sown 5-7 days earlier than scions, and the stock is sown in 72-hole plug trays; the scions are sown in flat trays; 5-8 ml of a potassium phosphite aqueous solution with the concentration being 50 mg.kg-1 is applied to each tomato seedling from the time when the stock buds to the time when cotyledons are expanded; grafting is performed when the core of a first main leaf of the stock is exposed, the steam thickness is 2.5-3 mm, seed leaves of the scions become green, and the stem thickness is 1.5-2 mm; 8-10 ml of a prohexadione-calcium aqueous solution with the concentration being 20 mg.kg-1 is applied to each cucumber seedling when the length of a second main leaf is 1 cm after grafting; 10-12 ml of a Dufulin aqueous solution with the concentration being 100 mg.kg-1 is applied to each cucumber seedling when the length of a third main leaf is 1 cm after grafting. The grafting seedlings cultivated through the method have a remarkable preventing and treating effect on the root-knot nematode disease and virus diseases in the field.

The invention provides a trace element foliar fertilizer, and a preparation method and an application thereof, and belongs to the technical field of agricultural fertilizer processing and production.The trace element foliar fertilizer comprises, by mass, 18-22% of potassium phosphite, 5-28.5% of an iron fertilizer, 2-18% of a manganese fertilizer, 15-33% of a zinc fertilizer, 10-37% of a boron fertilizer, 1-5% of a copper fertilizer and 0.1-0.2% of a molybdenum fertilizer. The application of the trace element foliar fertilizer to agricultural production significantly increases the yield of crops; and the trace element foliar fertilizer provided by the invention can significantly reduce the disease incidence and the incidence index of plants, and has a remarkable disease control effect.

The invention discloses a pesticide and fertilizer composition. Effective components of the composition contain potassium phosphite and polyglutamic acid. The invention also provides a preparation method and a use of the composition. A test result shows that the composition can promote the health of crops, increase the yield of the crops and prevent and control diseases of the crops.

The invention discloses a high-concentration fulvic acid high-efficiency liquid fertilizer and application thereof. The high-concentration fulvic acid high-efficiency liquid fertilizer is prepared bymixing 180 parts of a concentrated fulvic acid solution, 460 parts of monoammonium phosphate, 220 parts of potassium hydroxide, 100 parts of urea, 50 parts of potassium phosphite, 32 parts of boric acid and 150 parts of a fulvic acid functional additive; the prepared high-concentration fulvic acid high-efficiency liquid fertilizer has the effects of increasing yield and income, remarkably enhancing tree vigor and expelling parasites, and remarkably improving crop quality; a microbial remediation agent in the fulvic acid functional additive can effectively activate soil regeneration elements and accelerate the growth activity of organic matters in soil; and the fertilizer can improve soil fertility and restore soil, has a remarkable restoration effect on saline-alkali soil, can remarkably inhibit proliferation of harmful bacteria and injurious insects, is beneficial for improving the yield and quality of red dates and walnuts, and achieves a remarkable and outstanding technical effect.

The invention discloses an out-of-season flower forcing method of longan, comprising the steps of S1, after shoots of longan stabilize, blending with potassium chlorate and calcium carbonate to form acompound fertilizer, and spraying the compound fertilizer evenly to the roots of longan; S2, spraying a dilution of a first leaf fertilizer to leaves of longan within 5 days; S3, spraying a dilutionof a second leaf fertilizer to leaves of longan ten days later; S4, spraying a dilution of a third leaf fertilizer to leaves of longan when budding starts seven days later, so that flowers occur, wherein the dilution of the third leaf fertilizer is made by mixing phthalanilic acid dilution and potassium phosphite dilution. Flower forcing is performed on longan; flower forcing effect can be enhanced; on damage is caused to trees; flower forcing time is shortened; the method of the invention is suitable for forcing flower at any time, flower forcing rate is high, and the yield is stable.

The invention relates to a water-soluble fertilizer with a disease prevention and control function and a preparing method and application thereof, and belongs to the technical field of fertilizer preparation. The water-soluble fertilizer comprises, by mass, 17-67% of potassium phosphite, 19-70% of a nitrogen fertilizer, 5-30% of a phosphate fertilizer, 3-24% of a potash fertilizer and 1-5% of a boric fertilizer. The water-soluble fertilizer belongs to a medical fertilizer has an induced disease resistant function, is rapid and lasting in fertilizer efficiency and can be completely dissolved inwater; the water, fertilizer and pesticide management of the water-soluble fertilizer is synergistically conducted, and labor and time cost can be saved.

The invention relates to a surface treatment process for enhancing electrolytic copper foil anti-oxidization performance. The surface treatment process comprises the steps of at first dissolving kalio-natrimn tartaricum as complexing agent, zinc sulfate, an additive A and an additive B into water, mixing and regulating the pH value, keeping the solution clarified to obtain an electroplate liquid, and placing an electrolytic copper foil in the electroplate liquid for electroplating. The additive A comprises one or more of ammonium molybdate, zirconium sulfate, aluminum sulfate, silver sulfate, indium sulfate, sodium vanadate and sodium tungstate. The additive B comprises one or more of sodium sulfite, sodium hyposulfite, potassium phosphite, sodium hypophosphite and monopotassium phosphate. The electrolytic copper foil prepared by the surface treatment process for enhancing electrolytic copper foil anti-oxidization performance, can achieve an enhancement of the high temperature anti-oxidization performance that under 260 DEG C, no oxidization occurs for 1 hour.

The invention discloses a use of combination of chemical agents and biocontrol microbes for preventing and controlling continuous cropping tomato bacterial wilt. An antagonistic bacterium strain (bacillus B8) having obvious antagonistic effects on tomato bacterial wilt is separated. The strain B8 belongs to Bacillus amylolique Baciens, is preserved in the China general microbiological culture collection center on April 17, 2017 and has a preservation number CGMCC NO. 14042. The antagonistic bacterium strain is used for producing a liquid inoculant and microbial organic fertilizer, the liquid inoculant has antagonistic bacterium quality of greater than 10<9> / ml and the microbial organic fertilizer has antagonistic bacterium quality of greater than 5.0*10<7> / g. The antagonistic bacterium liquid inoculant, the microbial organic fertilizer containing the antagonistic bacterium strain and 0.3%(W / V) of a potassium phosphite solution are combined and used in the soil for tomato continuous cropping and have a tomato bacterial wilt prevention and treatment rate of 70% or more.

The invention relates to the technical field of an agricultural seed treatment agent, and particularly relates to application of potassium phosphite and a crop seed treatment agent and treatment method. According to the invention, researches find that after treatment by the potassium phosphite, root growth of crops can be effectively promoted and an emergence rate of seeds is improved, which showthat the potassium phosphite can be used for seed treatment. An experimental example result enables people to know that after seeds are treated by the potassium phosphite, the emergence rate is averagely improved by 4.2 to 6.8%; a main root length is averagely increased by 33.5 to 46.8%; an axillary root length is increased by 20.8 to 36.8%; a root weight is increased by 15.6 to 22.6%; and an effect is better than that of foliar spraying.

The invention relates to the field of fertilizers, and particularly relates to a pesticide-fertilizer composition containing potassium phosphite, mineral source potassium fulvate and polyglutamic acid. The composition comprises the potassium phosphite, the mineral source potassium fulvate and the polyglutamic acid in a weight ratio of (20-500): 1: (12-300), and can improve the crop yield and effectively inhibit root rot.

The invention provides a method for cultivating healthy seedlings of color peppers. Turf, vermiculite and pearlite are evenly mixed according to the volume ratio of 6:2:2 to prepare seedling cultivating substrates, and the operation of raising seedlings in plug trays is performed; after the copper pepper seedlings bud and cotyledons are expanded, 5-8 ml of a potassium phosphite aqueous solution with the concentration being 30 mg.kg-1 is applied to each color pepper seedling; 8-10 ml of a prohexadione-calcium aqueous solution with the concentration being 20 mg.kg-1 is applied to each color pepper seedling from the time when the tip of a first interior leaf is exposed to the time when one leaf and one core are formed; 12-15 ml of a chitosan aqueous solution with the concentration being 500 mg.kg-1 is applied to each color pepper seedling when two leaves and one core are formed; 12-15 ml of a potassium phosphite aqueous solution with the concentration being 75 mg.kg-1 is applied to each color pepper seedling when three leaves and one core are formed. Seedlings cultivated through the method are superior to conventional seedlings cultivated in plug trays in the aspects of root activity, sound seedling index, flower and bud differentiation, disease resistance, yield and the like.

The invention discloses dedicated antibacterial fertilizer for corn. The fertilizer is prepared from 20 to 30% of nitrogen, 10 to 15% of phosphorus, 5 to 20% of potassium and 3 to 5% of potassium phosphite; the fertilizer further contains an antibacterial material, and the antibacterial material accounts for 5 to 10% of the total weight of the fertilizer; the antibacterial material is prepared from ingredients by mass percent: 10% to 15% of Vc, 15 to 20% of amino acid, 60 to 75% of water, 5 to 10% of vinegar, 3 to 7% of plant ash and 3 to 8% of livestock dejection, and the ingredients are mixed to prepare the antibacterial material. Compared with the prior art, the dedicated antibacterial fertilizer for the corn disclosed by the invention has good quality, long fertilizer efficiency, high nutrient utilization rate and scientific matching; the fertilizer can guarantee the nutrient utilization rate, can increase yield of per acre by 10 to 15% compared with general fertilizer application and has better economical benefit; the cost is reduced, and the fertilizer efficiency and an antibacterial effect of the fertilizer are improved.

A process for the manufacture of an aqueous composition that is a combination of a fungicide and fertilizer comprising the following steps:(1) dissolving phosphorous acid in phosphoric acid to form a solution of an acid mixture;(2) reacting the acid mixture of step (1) with an aqueous potassium hydroxide solution at a temperature of about 65° C. to about 260° C. in a continuous reactor while maintaining the ratio of potassium to phosphorous in various mole ratios thereby forming a reaction mixture comprising potassium phosphates, potassium polyphosphates, potassium phosphites, and potassium polyphosphites and potassium phosphate phosphite copolymers; and,(3) cooling the reaction mixture rapidly at least 1° C. to 60° C., to below about 35° C. to about 65° C.Using a similar process a composition having fungicidal properties is prepared by reaction phosphoric acid with potassium hydroxide.The reaction mixtures prepared according to each of the above processes are also part of this invention.

The invention discloses a special weakly-alkaline fertilizer for citrus. The special weakly-alkaline fertilizer comprises urea, potassium phosphite, potassium chloride, potassium sulfate, zeolite powder, a calcium magnesium phosphate fertilizer, zinc sulfate, a boron-magnesium fertilizer, a humic acid composite fertilizer and a pest-resistant organic fertilizer, wherein the pest-resistant organicfertilizer is prepared by aerobic fermentation and decomposition of rapeseed meal, traditional Chinese medicine residues and brassinolide extract residues according to a mass ratio of (3-4):(1-2):(1-2) at 55-65 DEG C. The special weakly-alkaline fertilizer for citrus is an organic-inorganic combined fertilizer specially used for citrus, adopts a specific ratio of inorganic nutrients, and accords with the rule of the requirement of the citrus for nutrients in the whole growth period; and organic components in the fertilizer can effectively promote formation of a soil aggregate structure in order to improve soil fertilized with chemical fertilizer for a long time and improve the air permeability, water retention and fertilizer retention capacity of the soil, and inorganic nutrients are scientifically proportioned to guarantee the nutrient requirement law of citrus in the annual growth period in order to achieve the effects of increasing both production and income.

The invention discloses a special nutrient solution for soilless culture of melons as well as a preparation method and application thereof. The special nutrient solution comprises urea, potassium pyrophosphate, urea phosphate, EDTA copper, EDTA iron, EDTA manganese, EDTA zinc, EDTA calcium, EDTA magnesium, polypeptide amino acids, betaine, polyglutamic acid, potassium polyaspartate, potassium phosphite and water. The nutrient solution is reasonable in formula and comprehensive in nutrient substance, contains all mineral elements required by growth and development of melon plants, also containsorganic small molecular substances such as amino acids, overcomes the defect that two or more nutrient solutions are required to be mixed in a traditional scheme, can allow nutrients of all the components to coexist, and can avoid the phenomena of precipitation, flatulence and the like. Nutrients are reasonable and comprehensive, are easily absorbed and utilized by plants, are not easy to lose, and high quality and high yield of melon plants can be effectively ensured.

The composition provides herbicidal, fungicidal and / or nutritional activity to genetically engineered crops in a single application and comprises an aqueous composition of:(1) a glyphosate salt; and,(2) a phosphite selected from the group consisting of: potassium phosphite, potassium polyphosphite or any combinations; and,wherein the molar ratio of (1) to (2) is about 1:4 to about 1:1 and where the concentration of (1) is applied at the rate of between 0.47-4.13 lbs / acre.

The invention discloses a method for reducing green shoulder tomato. The method comprises the following steps: when a tomato fruit grows to 2-3 cm, using a mixed water solution containing 5'-nucleotide with the concentration of 20 mg / kg and boric acid with the concentration of 100 mg / kg to smear a fruit stem and sepals, and 15-20 days later, using a water solution of potassium phosphite with the concentration of 350 mg / kg to smear the fruit stem and the sepals again. The method, disclosed by the invention, can enable the tomato fruit to be consistent and uniform in color, not to turn green in shoulder, but to be beautiful in appearance and good in commercial capability.

The invention provides a polyoxyethane ether-based glycerol phosphite polymer, a preparation method for the same and a near-dry cutting fluid prepared from the same for gear machining. The polymer has a chemical formula as described in the specification, and n in the chemical formula is an integer in a range of 10 to 20. The preparation method for the polymer comprises the following steps: reacting glycerin and phosphorous acid according to a mol ratio of 1:1 to obtain glycerol phosphite; and subjecting glycerol phosphite and ethylene oxide in a ratio of 1: (10-20) to polymerization. The near-dry cutting fluid for gear machining comprises, by weight, 40 to 70% of the polyoxyethane ether-based glycerol phosphite polymer (containing polyoxyethane glyceryl ether, potassium phosphite and potassium hydroxide) and 2 to 3% of potassium tetraborate, with the balance being deionized water. The near-dry cutting fluid for gear machining provided by the invention has excellent cooling and lubricating performances and good anti-abrasion and anti-rust properties; when used together with a near-dry cutting lubricating device, the application amount of a lubricant is reduced to less than 5%, so energy saving and environmental protection are realized.

The invention discloses a method for promoting early maturity of sunlight greenhouse sweet melons. When the length of small sweet melons is 3-5 cm, sweet melons are dipped in a 5'-nucleotide aqueous solution with the concentration of 15 mg / kg, and the sweet melons are dipped again in a potassium phosphate aqueous solution with the concentration of 250 mg / kg 15-20 days after melon dipping. By means of the method, the time to market of sunlight greenhouse sweet melons can be brought forward by 7-10 days, yield is high, and quality is good.

The invention discloses a rice-duck symbiotic compound microbial fertilizer, which is mainly prepared from urea, potassium phosphite, ammonium sulfate, potassium chloride, plant meal, potassium fulvate, calcium magnesium phosphate fertilizer, pyroligneous liquor, a decomposing inoculant, colletotrichum gloeosporioides, bacillus amyloliquefaciens, an insect expelling component, active nano siliconand duckweed seeds. The preparation method comprises the following steps: mixing the plant meal and the decomposing inoculant, carrying out compost fermentation, spraying the pyroligneous liquor on the surface of the compost to obtain an organic fermentation material, crushing the organic fermentation material, and mixing the crushed organic fermentation material with other raw materials to obtainthe rice-duck symbiotic compound microbial fertilizer. According to the invention, the nano active silicon is introduced into the rice-duck symbiotic compound microbial fertilizer, the particle sizeof the nano active silicon is nanoscale, the nano active silicon is easily absorbed by crops, and the nano active silicon can activate plant cells, promote metabolism of organisms, improve immunity ofthe organisms, enhance growth vigor of the plants and improve disease resistance, stress resistance and lodging resistance of rice, and prevents ducks from damaging the rice.

The invention discloses a marigold straw organic fertilizer with a nematode control function and a preparation method thereof. The marigold straw organic fertilizer is prepared from the following rawmaterials in parts by weight: 800-900 parts of marigold straw, 80-150 parts of rape cake, 0.2-0.5 part of a decomposing inoculant, 15-30 parts of ammonium nitrate, 0.2-0.5 part of potassium phosphiteand 4.6-19 parts of potassium silicate, wherein the decomposing inoculant is prepared from trichoderma viride, aspergillus niger and bacillus subtilis in an equal mass ratio; the organic fertilizer provided by the invention can effectively improve the conversion of nematocidal active ingredients through secondary fermentation, and enhance the reduction rate of meloidogyne in soil.

The invention relates to the technical field of water-soluble fertilizer processing, in particular to a special clear liquid type macroelement water-soluble fertilizer for vegetable and a preparation method thereof. The special clear liquid type macroelement water-soluble fertilizer is prepared by uniformly mixing potassium nitrate, dipotassium phosphate, potassium pyrophosphate, potassium tripolyphosphate and potassium phosphite serving as potassium sources, dipotassium phosphate, potassium pyrophosphate, potassium tripolyphosphate, ammonium polyphosphate and potassium phosphite serving as phosphorus sources, urea and potassium nitrate serving as nitrogen sources, a chelated trace element bag and water-soluble boron serving as trace element sources, citric acid serving as a chelating agent, an acid regulating agent and an anti-freezing agent. The special clear liquid type macroelement water-soluble fertilizer for vegetable has various forms of nitrogen, phosphorus and potassium, comprehensive nutrition and antibacterial effect, is simple in preparation process, can meet the growth of vegetable, and is applicable to various irrigation systems.

The invention provides a method for cultivating healthy grafting seedlings of tomatoes. Turf, vermiculite and pearlite are evenly mixed according to the volume ratio of 6:3:1 to prepare seedling cultivating substrates, and the operation of raising seedlings by grafting in plug trays is performed; stock and scions are sown in the same period, and 5-8 ml of a potassium phosphite aqueous solution with the concentration being 50 mg.kg-1 is applied to each tomato seedling from the time when the stock buds to the time when cotyledons are expanded; 8-10 ml of a prohexadione-calcium aqueous solution with the concentration being 10 mg.kg-1 is applied to each tomato seedling from the time when the tip of a first interior leaf of each scion is exposed to the time when one leaf and one core are formed; 8-10 ml of a prohexadione-calcium aqueous solution with the concentration being 20 mg.kg-1 is applied to each tomato seedling when the length of a third main leaf is 1 cm after grafting; 12-15 ml of a chitosan aqueous solution with the concentration being 500 mg.kg-1 is applied to each tomato seedling when the length of a fourth main leaf is 1 cm after grafting. The grafting seedlings cultivated through the method are superior to conventional grafting seedlings cultivated in plug trays in the aspects of root activity, sound seedling index, flower and bud differentiation, disease resistance, yield and the like.

The invention discloses a plant immunizing agent containing phosphorous acid and copper ions and a preparation method of the plant immunizing agent. The plant immunizing agent is prepared from the following raw materials in parts by mass: 3 to 5 parts of water, 0.1 to 0.5 part of copper salt, 2 to 4 parts of phosphorous acid, 1 to 2 parts of compound sugar alcohol, 0.5 to 1.5 parts of potassium hydroxide solution and a chelating agent. The mass fraction of the chelating agent is the same with that of the copper salt. Phosphorous acid, potassium, copper, zinc, boron and other elements are adopted, nutrition requirements of various crops in the growth process can be effectively met, crop diseases and insect pests such as citrus ulcer, pitaya ulcer, kiwi fruit ulcer and gummosis of peach trees and pear trees and root rot and stem rot of tomatoes, peppers, flowers and the like caused by bacterial infection, fungal infection and the like can be more effectively prevented and treated through combination of phosphorous acid and copper ions, and the plant immunizing agent is environment-friendly.

The invention provides a method for cultivating healthy cucumber grafted seedlings. Peat, vermiculite, and perlite are mixed with a seedling-raising substrate according to a volume ratio of 6:3:1, and African sting melon is selected as a rootstock to carry out plug-in tray grafting and seedling cultivation; the ratio of rootstock to scion is 5-7 days early sowing, the rootstock is sown on a 72-hole hole tray; the scion is sown on a flat tray; when the rootstock sprouts and the cotyledons unfold, each plant is poured with 5-8ml of 50mg·kg-1 potassium phosphite aqueous solution; the first true leaf of the rootstock is exposed , stem diameter 2.5‑3mm, scion cotyledons turn green, graft when stem diameter is 1.5‑2mm; when the length of the second true leaf of scion reaches 1cm after grafting, each plant is poured 20mg·kg‑1 calcium prohexadione aqueous solution 8‑ 10ml; when the 3rd true leaf length of the scion reaches 1cm after grafting, every plant pours 10-12ml of the parafluorophos aqueous solution of 100mg kg-1, and the grafted seedlings bred by the present invention are to root-knot nematode and virus disease in the field There is a significant control effect.

The invention discloses a yield increasing fertilizer dedicated for nectarine. The yield increasing fertilizer dedicated for the nectarine is prepared from the following effective ingredients in parts by weight: 20-30% of potassium sulphate, 5-10% of ammonium sulfate, 2-5% of calcium phosphate, 3-5% of potassium phosphite, 2-5% of plant ash, 10-15% of soya-bean cake, 5-10% of bagasse and 5-10% of cow dung. The fertilizer is also prepared from antibiotic substances which occupies 2-5% of total mass of the fertilizer. The invention provides the yield increasing fertilizer dedicated for the nectarine and has the following advantages of good quality, long fertilizer efficiency, scientific proportion, rich fruit nutrition, delicious color, good taste, better color and more sufficient sugar if being compared with the prior art, cost is reduced, and the fertilizer efficiency and the antibiosis effect of the fertilizer are improved.

The invention discloses a method for accelerating coloring of color peppers in a sunlight greenhouse. When color peppers grow to the height of 2-3 cm, peduncles and sepals, are coated with a 5'-nucleotide water solution with the concentration of 15 mg / kg, and then peduncles and sepals of fruits are coated with a potassium phosphite water solution with the concentration of 300 mg / kg after application for 20-25 days. The method can make the color peppers in the sunlight greenhouse come into the market 10-15 days in advance, the fruit setting number is large, the yield is high, no hormone residue exists, and the quality is good.

The invention belongs to the technical field of chemical fertilizers, and particularly relates to a bulk blending fertilizer with an insect repelling effect, the bulk blending fertilizer comprises a basic fertilizer, 0.03 wt%-0.1 wt% of compound sodium nitrophenolate and 0.5 wt%-0.6 wt% of a water-retaining agent are compounded in the basic fertilizer, and each Kg of the basic fertilizer is further compounded with the following components: 0.2-0.3 mL of thiamethoxam, 0.8-1g of tobacco powder, 0.5-1g of rosin, 0.6-1g of potassium phosphite and 0.6-0.7 g of brassinolide. The thiamethoxam, the tobacco powder and the rosin are compounded in the fertilizer, so that the fertilizer has the effect of inhibiting invasion of diseases and insect pests while meeting the fertility requirement of crops, and the quality of crop products is comprehensively improved.