16 results about "Potassium phosphite" patented technology

The invention belongs to the technical field of sweet potato planting, and particularly relates to a sweet potato vigorous growth control, insect prevention and yield increase multi-effect integrated planting method which comprises the following steps: S1, preparing a vigorous growth control and yield increase agent; s2, digging pits in ridges of the field to form planting pits, sowing sweet potato seedlings and a vigorous growth control and yield increase agent into the planting pits together, and then filling soil and pressing; wherein the vigorous growth controlling and yield increasing agent is prepared from the following components in parts by mass: 180 to 220 parts of corn, 15 to 25 parts of sesame, 15 to 25 parts of soybean, 50 to 100 parts of castor seed, 3 to 8 parts of composite bacillus agent, 0.1 to 0.3 part of monopotassium phosphate, 0.05 to 0.12 part of potassium phosphite and 0.01 to 0.03 part of prohexadione calcium. According to the method, the vigorous growth control synergist and the sweet potato seedlings are planted together, all components in the vigorous growth control synergist are matched with one another, integration of vigorous growth control, yield increase and insect prevention of the sweet potatoes is achieved, and the vigorous growth control synergist does not have any pesticide residue.

The invention discloses a cultivation method for controlling tips and promoting flower bud differentiation of syzygium samarangense, and belongs to the technical field of tip control cultivation of syzygium samarangense. The method comprises the following steps: slightly shearing 70-80 days before flower forcing in the wax apple production period, applying a phosphorus-potassium-silicon mixed fertilizer in holes on the ground, and applying the fertilizer once every 15 days, totally twice; then a mixed aqueous solution of potassium phosphite and paclobutrazol is sprayed to leaf surfaces and drips water, spraying is conducted once every 15 days, and spraying is conducted 2-3 times in total; after spraying is conducted for 5-7 days, closed girdling is conducted, after 40-45 days, a mixed aqueous solution of auxin and a plant nutrition regulator is used for spraying, spraying is conducted once every 15 days, and spraying is conducted 1-2 times in total. The silicon fertilizer is mixed and added in the fertilizer and water management period to assist in increasing the absorption and utilization rate of the phosphorus-potassium fertilizer; besides, through the synergistic effect of tip control, trunk girdling and a mixed aqueous solution of auxin and a plant nutrition regulator, syzygium samarangense plants are stable, flower bud differentiation is promoted, meanwhile, the method has the characteristics of disease resistance, disease prevention, high flower forcing and flowering rate and large inflorescence amount, and the important effects of annual flowering and fruiting and promotion of syzygium samarangense industry synergy can be achieved; the method has the advantages of simple operation process, high efficiency, stability, few use times and labor cost saving.

The invention discloses a microbial composition for preventing and treating vomitoxin as well as a preparation method and application of the microbial composition. The microbial composition for preventing and treating vomitoxin is mainly prepared by mixing a component I and a component II according to a mass ratio of (50.0-0.1): (50.0-99.9), the component I comprises trichoderma harzianum powder, trichoderma asperellum powder and penicillium bayi powder; and the component II comprises potassium phosphite, alkene potassium phosphate and potassium tripolyphosphate. The preparation method comprises the following steps: adding the component I and the component II into a stirrer, and stirring and mixing to obtain the coating. The invention also discloses an application of the microbial composition for preventing and treating vomitoxin. The microbial composition disclosed by the invention can generate metabolites with a biocontrol effect, has efficient inhibitory activity on fusarium, can reduce generation of vomitoxin, can effectively regulate diversity of soil microorganisms, realizes crop yield increase and soil improvement, and is green and environment-friendly. The method and application are simple, the cost is low, and the method is suitable for agricultural application.

The invention discloses a compound preparation for regulating and controlling areca flower bud differentiation and application thereof, which is characterized in that a high-carbon-nitrogen-ratio nutrition formula (potassium phosphite, chelated boron, zinc, calcium and the like) and endogenous hormones (abscisic acid, salicylic acid and the like) have a synergistic effect and are combined with a stabilization process (organic silicon additive and anti-crystallization treatment). The areca flower bud differentiation rate is increased from about 21% to 90% or above, flowering is advanced by 7-10, and the average yield is increased by 300% or above. The technology is suitable for tropical areca-nut planting areas and has the advantages of being efficient, low in residue and environmentally friendly.

The present application relates to the field of potassium hypophosphite production, and particularly relates to a method and system for co-producing potassium hypophosphite and potassium phosphite, which comprises: replacing all the reaction kettles and pipelines with nitrogen to maintain a slight positive pressure in the system; continuously feeding potassium hydroxide aqueous solution and molten yellow phosphorus into the first-stage reaction kettle to generate potassium hypophosphite and phosphine through disproportionation reaction; feeding the reaction liquid into the second-stage reaction kettle to gradually increase the alkali concentration, and convert part of the potassium hypophosphite into potassium phosphite; feeding the reaction liquid into the third-stage reaction kettle to maintain the alkali concentration at a certain level, and convert part of the potassium hypophosphite into potassium phosphite and release hydrogen; feeding the reaction liquid into the fourth-stage reaction kettle to maintain the alkali concentration at a certain level, and continuously discharge the product containing the mixture of potassium phosphite and potassium hypophosphite from the fourth-stage reaction kettle after the reaction approaches equilibrium, thereby improving the production efficiency, reducing the raw material cost, improving the process safety, thermal energy utilization efficiency and product quality, and realizing the comprehensive utilization of the gas byproducts.

The invention belongs to the field of durian cultivation, and particularly relates to a durian flower forcing agent, a preparation method and application. According to the durian flower forcing agent, prohexadione calcium, potassium phosphite, benzyl benzyl aminopurine, thidiazuron and ethephon are reasonably combined, durian can be promoted to bloom in advance, the durian flower forcing agent is diluted and then sprayed to durian trees, budding of the durian trees can be achieved 9 days after spraying, and the budding time and the blooming time are shortened; meanwhile, the cluster number of durian flower buds can be remarkably increased, important guarantee is provided for increasing the yield of durian, and economic benefits of durian cultivation can be greatly increased.

The invention relates to a plant anti-freezing solution composition as well as a preparation method and application thereof. The composition comprises a film-forming agent, a film-forming initiator, a phosphorus-potassium fertilizer, an anti-freezing solution and the balance of water. The film-forming agent is polyvinyl alcohol and sodium alginate; the film forming initiator is at least one of potassium persulfate, azodiisobutyronitrile and cumene hydroperoxide; the phosphorus-potassium fertilizer is at least one of potassium phosphite and monopotassium phosphate; the anti-freezing liquid is at least one of ethylene glycol, alpha-propylene glycol and glycerol. The composition further contains a biostimulant, a biological bactericide, a plant growth regulator and a biological surfactant. The invention provides a preparation method of an anti-freezing solution composition and application of the anti-freezing solution composition to field crops, fruit trees, vegetables and gardens needing to be subjected to anti-freezing.

The invention provides a kasugamycin solution, and a preparation method and application thereof, and the solution is mainly prepared from the following raw materials by mass: 2-10% of kasugamycin; 0.01% to 0.05% of chitosan oligosaccharide; 0.05% to 0.3% of glucan; 0.05% to 0.2% of a bacillus licheniformis metabolite; 0.1%-0.3% of potassium phosphite; 0.05%-0.15% of polyglutamic acid; the total percentage is 100%. According to the kasugamycin solution, through a multi-channel synergistic effect, effective components are efficiently utilized, the lasting period can be remarkably prolonged, and the kasugamycin solution has urgent and important significance in promoting development of an agricultural green prevention and control technology.

The present application relates to the technical field of traditional Chinese medicine cultivation, and discloses a salvia miltiorrhiza ecological cultivation method with high water and fertilizer utilization rate, which comprises the following steps: applying a compound formula base fertilizer to the land to be planted, applying calcium magnesium phosphate fertilizer, amino acid water-soluble fertilizer, potassium humate, compound bacteria and farm organic fertilizer to the land to be planted, and then carrying out harrowing operation to obtain the land in a state ready for sowing; performing ridging and film mulching sowing on the land in the state ready for sowing, planting salvia miltiorrhiza seedlings or root segments on the ridges in a double-row planting mode, and laying drip irrigation belts in the middle of the rows; performing drip irrigation at least three times during the growth of salvia miltiorrhiza; and simultaneously, applying potassium phosphite and organic water-soluble fertilizer to salvia miltiorrhiza in a leaf surface spraying mode during the growth of salvia miltiorrhiza. The salvia miltiorrhiza ecological cultivation method with high water and fertilizer utilization rate effectively improves the yield and quality of salvia miltiorrhiza, plays a positive role in protecting the agricultural ecological environment, and exhibits unique environmental protection value.

The present application provides a kind of green efficient shoot control method of mango early ripening cultivation, belongs to the technical field of plant planting, the shoot control method is in the shoot control period of mango growth, using uniconazole, calcium chelate and potassium phosphite to control the shoot of mango, to inhibit the growth of new shoot and improve the fruiting branch dry matter accumulation, improve the success rate of flower forcing.The present application uses specific shoot control method to control the shoot of mango tree, can keep mango tree healthy, leaf color dark green, chlorophyll content is significantly improved, photosynthetic capacity is significantly enhanced, is beneficial to the effective accumulation of fruiting branch dry matter, but can effectively inhibit the growth of new shoot, provides necessary condition for the transformation of fruiting branch from vegetative growth to reproductive growth.

The invention relates to an organic state potassium phosphite liquid fertilizer and a preparation method thereof. The effective component of the liquid fertilizer is at least one potassium phosphite compound with the structure shown in the formula (I) to the formula (V), and phosphorous acid and specific polyhydric alcohol are subjected to esterification reaction and then neutralized with potassium carbonate or potassium hydroxide to prepare the liquid fertilizer. The liquid fertilizer has nutrition and sterilization functions, and can effectively prevent fungal and bacterial diseases; an esterification reaction product is stable in property and not prone to being oxidized into orthophosphate with oxygen to lose the sterilization effect, meanwhile, precipitation with medium trace elements is reduced, and compatibility with pesticides is good; organic ester leaves have good affinity, the structure is beneficial to direct absorption of plants, bidirectional transportation can be carried out in xylem and phloem, and the utilization efficiency is high; the foliage affinity is strong, leaves are not easy to burn after high-concentration spraying, and the foliage fertilizer is suitable for various modes such as foliage spraying and drip irrigation. The method is mild in reaction, is operated at normal temperature, does not need heating, is simple and convenient in process, and is suitable for large-scale production and popularization.

The application discloses a reusable compound leaching agent for treating arsenic contaminated soil and a use method. The method comprises the following steps: mixing and dissolving potassium pyrophosphate and potassium hypophosphite to obtain a compound leaching agent, and leaching the soil to be treated under the condition; performing solid-liquid separation on the soil after oscillation leaching, so as to obtain the repaired soil and residual leaching liquid; adding iron hydroxide and aluminum hydroxide into the residual leaching liquid, and performing solid-liquid separation after fully stirring, so that the obtained leaching liquid can be reused for leaching the arsenic contaminated soil. The compound leaching agent is formed by combining potassium pyrophosphate and potassium hypophosphite, so that the content of arsenic in the contaminated soil can be effectively reduced, the leaching liquid can be reused, the removal rate of the reused leaching agent for arsenic is high, the compound leaching agent has simple components, the leaching effect on arsenic is remarkable, the leaching agent can be reused for multiple times, the cost is low, and the compound leaching agent has a good application prospect.

The invention discloses a phosphorus source substitution-based potato green pesticide fertilizer and a preparation method thereof. The pesticide-fertilizer composition is a topdressing aqueous solution and comprises nitrogen (15-20 g / L), phosphorus (P2O5 accounts for 7-8 g / L, and phosphite accounts for 40%-50%) and potassium (K2O accounts for 10-15 g / L); the preparation method comprises the following steps: fully and uniformly mixing monopotassium phosphate, potassium nitrate, potassium phosphite, urea, potassium sulfate, magnesium sulfate, trace elements, an anti-blocking agent and the like with similar particle sizes to form three major element powder water-soluble fertilizers of 25-14-14, 19-19-19 and 14-8-30; the fertilizing method comprises the following steps: applying base fertilizer (15-15-15 compound fertilizer, 400-500 kg / ha) during planting, and carrying out drip irrigation topdressing (1000 L / ha, 5-10 times) after the seedling stage. The method can improve the potato yield, enhance the late blight resistance, significantly reduce the disease index of potato late blight, reduce the use of chemical pesticides, and promote the development of green agriculture.

The present application relates to a kind of macroelement water-soluble fertilizer and its preparation method, belong to water-soluble fertilizer field, according to percentage by weight, including urea 25~30%, potassium nitrate 30.0~35.0%, polyphosphate 15~20%, compound chelated state trace metal element 18~20%, potassium phosphite 1.0~2.0%, sodium octaborate 0.1~0.3%;The compound chelated state trace metal element includes calcium nitrate tetrahydrate, magnesium sulfate heptahydrate, ferrous sulfate heptahydrate, zinc sulfate heptahydrate, citric acid monohydrate, tartaric acid, poly-p-glutamic acid, glycine, potassium fulvic acid, mulberry bark extract and radix scrophulariae extract.The trace metal element of the present application is treated by step chelation, and the content of initial chelated state trace element is significantly higher than all the comparative examples, and the macroelement water-soluble fertilizer of the present application can effectively improve crop yield, and reduce the stress resistance of crop.

The utility model relates to the technical field of stirring and mixing, and provides a potassium phosphite water-soluble fertilizer stirring and mixing device which comprises a tank body arranged on a workbench, a transmission box body arranged at the top of the tank body, a driving motor arranged at the top of the transmission box body, a stirring shaft in transmission connection with the driving motor, and a stirring shaft arranged on the stirring shaft. The stirring shaft penetrates through the transmission box body and extends to one end of the inner cavity of the tank body to be provided with at least one group of stirring components; at least one group of shearing components are further arranged in the tank body and close to the upper liquid level, the shearing components are mounted on a shearing shaft, and one end, far away from the shearing components, of the shearing shaft extends to an inner cavity of the transmission box body and is in transmission connection with the stirring shaft through a transmission adjusting mechanism; at least one feeding port is further formed in the top of the tank body, and at least one discharging port is formed in the bottom of the tank body. The stirring and mixing device solves the problems that an existing stirring and mixing device is poor in stirring and mixing effect on powdery raw materials of the water-soluble fertilizer and low in mixing efficiency.

The invention relates to the technical field of biology, and particularly discloses a composition containing PHA (polyhydroxyalkanoate) and potassium phosphite as well as a preparation method and application of the composition. Research finds that after PHA which is commonly used as a mulching film material and potassium phosphite are compounded according to a specific proportion, the antibacterial, disease-preventing and growth-promoting effects of the potassium phosphite can be remarkably improved, the soil environment can be better improved, the soil EC value can be better reduced, and the soil organic matter content and phosphorus content can be better improved, so that the composition is provided. The fertilizer comprises PHA (polyhydroxyalkanoate) and potassium phosphite, the mass ratio of the PHA to the potassium phosphite is 1: (0.2-1.25). The composition provided by the invention provides a new effective promotion mode for crop cultivation, and is beneficial to yield increase.