423results about "Ammonium salt fertilisers" patented technology

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The invention relates to a particulate composition comprising, or substantially consisting of, urea, an inhibitor, preferably a urease inhibitor and / or a nitrification inhibitor, and an additive, wherein the additive comprises components (i) and (ii): (i) a carboxylic acid or an anhydride, salt, or derivative thereof; preferably a carboxylic acid salt or a carboxylic acid derivative, more preferably a carboxylic acid salt; and (ii) a polar polymer; preferably a water-soluble polar polymer. The invention further relates to a process for preparing the particulate composition, an additive for a particulate composition, and the use of the particulate composition as a fertilizer.

Disclosed herein are methods of increasing nitrogen fixation in a non-leguminous plant. The methods can comprise exposing the plant to a plurality of bacteria. Each member of the plurality comprises one or more genetic variations introduced into one or more genes or non-coding polynucleotides of the bacteria's nitrogen fixation or assimilation genetic regulatory network, such that the bacteria are capable of fixing atmospheric nitrogen in the presence of exogenous nitrogen. The bacteria are not intergeneric microorganisms. Additionally, the bacteria, in planta, produce 1% or more of the fixed nitrogen in the plant.

The invention discloses a humic acid coated zeolite-based nutrient-loaded slow-release fertilizer as well as a preparation method and application thereof. The slow-release fertilizer comprises a zeolite-based core and a humic acid polymer coating coated outside the zeolite-based core. The slow release fertilizer provided by the invention not only retains the original high-loading nutrient loading function of the nano composite zeolite material, but also endows the nano composite zeolite material with chemically stable ion exchange and adsorption functions, thereby thoroughly getting rid of the original'instant nutrient fertilizer salt core '; the slow-release fertilizer provided by the invention takes artificial humic acid as a coating material, so that the use of chemical organic materials and solvents is completely avoided. According to the invention, the conversion of the inorganic fly ash solid waste and the organic biomass solid waste from raw materials to the ecological slow-release fertilizer is realized. Meanwhile, the efficient conversion of zeolitization and humification in the chemical industrial process realizes the large-scale production of the zeolite-based material doped with the heterogeneous metal in the pore cage frame structure and the carbon-negative humic acid polymer material.

The invention relates to a particulate composition comprising, or substantially consisting of, urea, an inhibitor, preferably a urease inhibitor and / or a nitrification inhibitor, and an additive, wherein the additive comprises components (i), (ii), and optionally (iii): (i) one or more polyhydric alcohols; preferably one or more carbohydrates, preferably selected from monosaccharides, disaccharides, and oligosaccharides; (ii) a first polymer, preferably an amine-containing polymer; more preferably a polyvinylamine or a polyalkyleneimine; and (ii) optionally, a second polymer, preferably a polar polymer; more preferably a water-soluble polar polymer. The invention further relates to a process for producing the particulate composition, an additive for a particulate composition, and the use of the particulate composition as a fertilizer.

Biofertilizer granule comprising a core and a coating, said core comprises at least one fertilizer chosen in the group comprising NPK fertilizer, monoammonium phosphate (MAP), diammonium phosphate (DAP), potassium sulphate (SOP), single super phosphate (SSP), triple super phosphate (TSP), frass from insects, frass from fish or shellfish, and their mixture, said coating comprises at least a binding agent and a soil activator composition having an extended shelf-life duration.

The invention discloses a preparation method and application of an iron-based metal organic framework material / carbon nitride nitrogen fixation photocatalyst in the field of photocatalytic materials, the iron-based metal organic framework material / carbon nitride nitrogen fixation photocatalyst is prepared by taking ferric chloride, terephthalic acid and graphite phase carbon nitride as raw materials through a hydrothermal reaction, a heterojunction is constructed through a solvothermal method, uniform loading of MIL-53 (Fe) on the surface of b-C3N4 is achieved, and the photocatalytic performance of the photocatalyst is improved. And the formed heterogeneous interface significantly improves the photon-generated carrier separation efficiency. The obtained MIL-53 (Fe) / b-C3N4 photocatalytic composite material has good visible light response characteristic and excellent photocatalytic nitrogen fixation performance, and is safe, non-toxic, green and environment-friendly. The produced ammonia water can be directly absorbed by wheat, so that the chlorophyll content of leaves is increased by 11-13%, the plant height is increased by 19-21%, and a novel photocatalysis scheme is provided for green agriculture.

The present disclosure provides non-intergeneric remodeled microbes that are able to fix atmospheric nitrogen and deliver such to plants in a targeted, efficient, and environmentally sustainable manner. The utilization of the taught microbial products will enable farmers to realize more productive and predictable crop yields without the nutrient degradation, leaching, or toxic runoff associated with traditional synthetically derived nitrogen fertilizer, by mitigating or eliminating the need for exogenous nitrogen-containing fertilizers. The remodeled microbes have unique colonization and nitrogen fixation abilities, which enable the microbes to deliver nitrogen to a cereal plant in a spatially targeted (e.g. rhizospheric) and temporally targeted (e.g. during advantageous stages of plant's life cycle) manner. The microbes are able to replace the standard agricultural practice of sidedressing and enable a more environmentally sustainable form of farming. The present disclosure also provides methods of using non-intergeneric remodeled microbes, for example, to fix atmospheric nitrogen by reducing or eliminating the need for exogenous nitrogen-containing fertilizers, to increase yield, and to reduce infield variability in the yield.

The invention discloses a special organic fertilizer for soybeans and a preparation method thereof, and belongs to the technical field of organic fertilizers. The special organic fertilizer for soybeans is prepared from the following raw materials in parts by weight: 8-10 parts of fish protein modified charcoal, 40-50 parts of decomposed soybean meal, 20-25 parts of decomposed livestock and poultry manure, 15-20 parts of humic acid, 10-15 parts of plant ash, 3-5 parts of a seaweed extract and 0.1-0.3 part of ammonium molybdate. According to the organic fertilizer, the soybean meal fermented by the trichoderma reesei and the aspergillus awamori and the fish protein modified biochar are added, the two components are compounded with the cooked livestock and poultry manure, the humic acid, the plant ash, the seaweed extract and the ammonium molybdate to form the organic fertilizer, the nitrogen fixation capacity of the soybeans is effectively improved through the synergistic effect of various substances, and the growth and development of the soybeans are remarkably promoted; the soybean yield and quality are improved. In addition, the whole organic fertilizer preparation process is free of strong acid and strong alkali treatment, the environmental pollution risk is reduced, and the standard of organic agriculture is met.

The invention discloses an impurity removal device and an impurity removal method for salt separation crystallization mother liquor of chemical high-salt wastewater, and belongs to the technical field of comprehensive utilization of water resources. The impurity removal device comprises a high-density sedimentation tank for receiving high-salinity wastewater salt separation crystallization mother liquor; the first-stage reactor is connected with the high-density sedimentation tank through a pipeline; the second-stage reactor is connected with the first-stage reactor through a pipeline; the three-stage reactor is connected with the filtering device through a pipeline, the filtering device is connected with the mesoporous adsorption tower through a pipeline, the mesoporous adsorption tower is connected with the chelating resin tower through a pipeline, and the chelating resin tower is connected with the modified zeolite adsorption tower through a pipeline. The method has the advantages that equipment configuration is reasonable, and good stability and operability are achieved; the method provided by the invention has outstanding process route originality and low treatment cost, and realizes liquid phase treatment and high-valued cyclic utilization of the chemical high-salinity wastewater salt separation crystallization mother liquor.

The invention discloses a salt-tolerant microbial agent as well as a preparation method and application thereof, and belongs to the technical field of fertilizers. The preparation method comprises the following steps: inoculating a microbial agent into a culture medium for culturing to obtain a bacterial suspension, and collecting thalli; resuspending the thalli by using sterile normal saline to obtain resuspended bacterial liquid; mixing the resuspended bacterial liquid with an embedding liquid to obtain a mixed liquid; dropwise adding the mixed solution into a CaCl2 solution, and curing; and drying to obtain the salt-tolerant microbial agent. The embedding liquid contains 1 to 3g / 100mL of sodium alginate and 1 to 3g / 100mL of polyvinyl alcohol. The influence of a high-salt environment on the microbial agent is isolated by utilizing a physical method, the tolerance of the microbial agent in the high-salt environment is improved, the activity and metabolism efficiency of the microbial agent are improved, and the technical bottleneck of thallus inactivation when a microbial fertilizer and a chemical fertilizer are compounded is solved.

The invention discloses bacillus subtilis subsp.deserticola, nano-selenium synthesis application of the bacillus subtilis subsp.deserticola and application of the bacillus subtilis subsp.deserticola to prevention and treatment of plant virus diseases, and belongs to the technical field of microorganisms. The bacillus subtilis subsp. Deserticola KBD-4 has better selenium tolerance and can reduce selenium salt into nano-selenium, and meanwhile, a bacterial solution and a nano-selenium active bacterial solution which are generated after the strain is fermented have a better inhibition effect on plant viruses such as TMV, CMV, PVY and TSWV, so that the plant virus diseases can be better prevented and treated. Besides, a biological source nano-selenium potassium fertilizer can be prepared by adding a high-potassium trace element additive into the nano-selenium active bacterial liquid, after root irrigation, the disease-resistant and growth-promoting effects on the tomatoes are better, the tomato yield is increased, the nutritional quality of the tomatoes is further improved, selenium-rich agricultural products meeting the national standard are produced, and the method is worthy of popularization and application. The method has good practical application value in production.

The invention relates to the technical field of compound fertilizers, and discloses a root-promoting stress-resistant corn special fertilizer and a preparation method thereof, the root-promoting stress-resistant corn special fertilizer comprises an organic compound matrix, 8-15 parts of sodium alginate, 3-10 parts of bacillus subtilis, 3-7 parts of chelated zinc, 8-15 parts of potassium fulvate, 5-10 parts of polyaspartic acid, 17-25 parts of potassium nitrate, 12-20 parts of ammonium sulfate, 10-20 parts of bentonite and 25-35 parts of monoammonium phosphate, through the synergistic effect of various components in the fertilizer, efficient promotion of corn growth is realized, nitrogen provided by monoammonium phosphate promotes corn leaf growth and enhances photosynthesis, and phosphorus mainly promotes root development, so that the root is more developed, and the absorption capacity of the root to moisture and nutrients is improved; meanwhile, the resistance of the corn to adverse situations such as drought and cold is enhanced.

The invention relates to the technical field of fertilizer preparation, and particularly discloses a biological organic fertilizer rich in deep sea enzymolysis fish protein and a preparation method of the biological organic fertilizer. The biological organic fertilizer is prepared from the following components in parts by weight: 35 to 45 parts of organic fertilizer (containing deep sea enzymolysis fish protein, tobacco powder, meat powder and bone meal), 6 to 15 parts of compound microorganism (such as bacillus licheniformis and the like), 5 to 10 parts of medium element fertilizer, 1 to 2 parts of trace element fertilizer, 0.1 to 1 part of xanthan gum and sulfur suspension, 30 to 35 parts of outer layer fertilizer (containing humic acid, urea and the like) and 0.1 to 0.5 part of anti-blocking agent. The preparation method comprises the following steps: separately fermenting microorganisms to prepare bacterial powder; mixing, crushing and granulating the raw materials to form master batches; spraying xanthan gum and sulfur suspension on the surface of the master batch to form a film; spraying the outer-layer fertilizer slurry for several times; and finally, an anti-blocking agent is sprayed, and air drying is conducted. The deep sea enzymolysis fish protein is taken as a core, the balance of quick-acting fertilizer efficiency and slow release is realized, the soil structure can be improved, the crop growth is promoted, the stress resistance and the fertilizer utilization rate are improved, the soil-borne diseases are inhibited, and the method has the advantages of high efficiency, environment friendliness, economy, practicability and the like.

The invention discloses an application method for realizing rice nitrogen fertilizer substitution by utilizing a photocatalytic nitrogen fixation material in the technical field of agricultural production. The application method comprises the following steps: S1, pretreating and proportioning a catalyst; s2, reaction container deployment and illumination optimization; s3, carrying out photocatalytic reaction and ammonium nitrogen generation; s4, synergistically applying base fertilizer and additional fertilizer; s5, monitoring and feeding back nitrogen utilization efficiency; the performance of the photocatalyst is improved by adopting a surface doping and composite modification technology, atmospheric nitrogen can be stably and efficiently converted into ammonium nitrogen which can be directly absorbed by rice under a complex environmental condition, and the nitrogen conversion rate and the nitrogen supply efficiency are improved; the AI algorithm is combined with the chlorophyll meter, the soil nitrogen sensor and the water ammonia nitrogen concentration data to predict and dynamically adjust the nitrogen demand of the rice in real time; a closed loop of nitrogen fixation-conversion-absorption-recovery is formed through a segmented application strategy of base fertilizer and topdressing in combination with physical and chemical synergism and a biochar improvement technology.

The invention provides a polyglutamic acid granular fertilizer and a preparation method thereof, and the preparation method comprises the following steps: S1, dissolving lignin in an alkaline solution, and heating until the lignin is dissolved; adding epsilon-polylysine fermentation liquor, mixing, heating, adding a formaldehyde solution, and carrying out grafting reaction to obtain epsilon-polylysine grafted lignin; s2, mixing the epsilon-polylysine grafted lignin solution and the gamma-polyglutamic acid solution, adding N-hydroxysuccinimide, standing at a low temperature, adding 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, and mixing; carrying out gradient temperature reaction to obtain lignin grafted epsilon-polylysine / gamma-polyglutamic acid hydrogel; and S3, homogenizing the lignin-grafted epsilon-polylysine / gamma-polyglutamic acid hydrogel, carrying out normal-temperature high-pressure airflow crushing, and spraying the crushed hydrogel to the surfaces of particles obtained by granulating a basic material through high-pressure electrostatic spraying, so as to obtain the polyglutamic acid granular fertilizer. The obtained polyglutamic acid granular fertilizer has relatively strong water-retaining and slow-release (releasing water, urea and the like) effects.

The application discloses a kind of water-soluble sulphur-based compound fertilizer preparation method, belong to compound fertilizer technical field.The steps include as follows:(1) in reaction kettle, concentrated sulfuric acid and potassium chloride are reacted under heating condition, reaction temperature is 105-115 DEG C, reaction time is 25-45 minutes, slurry is sent to cooling kettle;(2) in cooling kettle, temperature is reduced to 40-60 DEG C, slurry is sent to mixed acid tank;(3) in mixed acid tank, add dilute phosphoric acid, potassium bisulfate solution and slurry, reaction temperature is 65-75 DEG C, slurry is sent to tubular reactor;(4) in tubular reactor, add ammonia, washing liquid and slurry, reaction temperature is 150-180 DEG C, slurry is sent to granulator;(5) in granulator, add alkaline compound fertilizer raw material, return material and slurry for granulation, granulation temperature is 80-95 DEG C, return material ratio is 1:1.5-2.0;(6) the granules obtained from granulator are cooled and screened to obtain product.

The invention provides a microbial composite remediation liquid organic fertilizer and a preparation method thereof, and aims to solve the problems of single function, limited pollution abatement capability and the like of a traditional liquid fertilizer. Through synergism of strains of bacillus velezensis, bacillus methylotrophicus, pseudomonas putida and methanogenic archaea, recycling of agricultural wastes such as straw and mushroom dreg compost and decomposition, extraction of humic acid through enzymolysis and a formula of green additives (mineral source potassium fulvate, sophorolipid and the like), chemical passivation of heavy metals, pesticide degradation and soil improvement are realized; and dynamic fermentation control and membrane separation processes are combined, so that the method has the characteristics of efficient repair and low-carbon sustainability, and an integrated solution is provided for pollution treatment of complex farmlands.

The invention relates to the technical field of fertilizers, in particular to an alginic acid organic water-soluble fertilizer capable of quickly releasing nutrients and a preparation method of the alginic acid organic water-soluble fertilizer. The organic water-soluble fertilizer is prepared from the following preparation raw materials: 30 to 35 parts of sodium alginate, 12 to 15 parts of a seaweed extract composition, 5 to 8 parts of monocalcium phosphate, 5 to 8 parts of monopotassium phosphate, 12 to 15 parts of urea, 0.5 to 0.8 part of a chelating agent, 40 to 45 parts of an organic fertilizer raw material, 1.5 to 2 parts of a microbial strain, 12 to 16 parts of ammonium humate, 4 to 6 parts of a cosolvent and 1.4 to 1.7 parts of xanthan gum. By optimizing the ratio of the raw materials, the absorption and utilization rate of plants to the water-soluble fertilizer is remarkably improved; nutritional ingredients can be quickly released, and plants can be promoted to absorb water-soluble fertilizer; through the synergistic effect of microorganisms and organic components, the content of nutrient substances in soil is increased, plants are helped to better absorb mineral substances and trace elements, the utilization efficiency of the fertilizer is improved, healthy growth of the plants is promoted, and the yield is increased.

The invention provides an organic mineral fertilizer and a preparation method thereof, and belongs to the technical field of fertilizer preparation. The organic mineral fertilizer is prepared from fermented organic matters, an inorganic nitrogen source, a slow-release phosphorus and potassium source, medium trace elements, a slow-release matrix and a functional microbial agent according to a specific ratio. The composition of the fertilizer is adjusted, the slow-release phosphorus and potassium sources are adopted as raw materials, slow release of phosphorus and potassium is achieved through the slow-release effect of the slow-release phosphorus and potassium sources, and the overall slow-release effect of the fertilizer is achieved through the slow-release matrix. According to the present invention, the organic matter and the mineral element are deeply fused by adjusting the process, the prepared fertilizer has characteristics of comprehensive nutrition, slow release, high efficiency, soil improving, and fertilizer utilization rate increasing, the resource utilization of the agricultural waste is achieved, and the green and environmental protection modern agriculture requirements are met.

The invention relates to a synergistic biological prevention and control double-effect regulation compound fertilizer applicable to corn and a preparation method, and the synergistic biological prevention and control double-effect regulation compound fertilizer applicable to corn is prepared from the following raw materials in parts by mass: 15-20 parts of urea, 10-15 parts of controlled-release nitrogen fertilizer, 8-12 parts of monoammonium phosphate, 5-8 parts of calcium magnesium phosphate fertilizer, 10-15 parts of potassium sulfate, 1-2 parts of zinc sulfate, 0.5-1 part of boric acid and 0.2-0.5 part of ammonium molybdate. According to the invention, through the synergistic effect of the microbial agent and the Chinese herbal medicine extract, the effect of biological prevention and control is achieved, the use of chemical pesticides is reduced, and the risk of pesticide residues in corn is reduced.

The invention relates to the technical field of agricultural fertilizers. More specifically, the invention relates to an extraction method of tenebrio molitor antibacterial peptide and application of the tenebrio molitor antibacterial peptide in preparation of tea tree anthracnose resistant fertilizer. According to the preparation method, the colletotrichum camelliae liquid is taken as an induction factor, the ultrasonic induction technology is utilized to strengthen the absorption of tenebrio molitor to the induction factor, meanwhile, a supercritical / ethanol cosolvent extraction process and a bionic affinity chromatography purification process are combined, the efficient extraction of the antibacterial peptide is realized, and the obtained antibacterial peptide has a relatively good inhibition effect on the colletotrichum camelliae. A tea tree anthracnose resisting leaf fertilizer is further prepared through the tenebrio molitor antibacterial peptide, the leaf fertilizer has a good prevention and treatment effect on tea tree anthracnose caused by camellia colletotrichum spinosus, meanwhile, tea growth can be promoted, and the yield reduction caused by anthracnose and nutrition deficiency of tea tree crops can be effectively reduced.

The application provides a method for preventing and controlling plant aphids, and the specific steps are as follows: selecting plant germination seeds that have grown roots and the root length is 2-6 cm, applying a light cycle treatment of 8h light and 16h darkness in the growth process of the plant germination seeds; in the plant germination seeds, the seed sources include legumes and cruciferous vegetables; and in the growth process of the plant germination seeds, a boron-containing nutrient solution containing the following components is used: Ca(NO3)2.4H2O 4mM, KH2PO4 1mM, KCl 1mM, MgSO4.7H2O 2mM, K2SO40.5mM, FeSO4.7H2O 50μM, EDTA.Na2 50μM, MnCl2 10μM, ZnSO4.7H2O 5μM, CuSO4.5H2O 0.5μM, (NH4)6Mo7O 24 4H2O 1μM, H3BO3 35-70μM, CoCl20.5μM; the nutrient elements are applied according to the following steps: (1) the first boron-containing nutrient solution is used for 1-5d, and the concentration of all components in the first boron-containing nutrient solution is 20-30% of that of the boron-containing nutrient solution; (2) the second boron-containing nutrient solution is used for 6-15d, and the concentration of all components in the second boron-containing nutrient solution is 40-60% of that of the boron-containing nutrient solution. The method can effectively prevent and control plant aphids.

The application discloses a kind of compound fertilizer with nitrogen fertilizer slow-release and biocontrol function and preparation method, it is related to microbial compound fertilizer field, including the following components: nitrogen source carrier, physical net trapping material, 3,4-dimethyl pyrazole phosphate, biocontrol component, binder.A kind of preparation method, including the following steps: after silanization modification treatment is carried out to attapulgite, with polyglutamic acid aqueous solution mixed reaction, obtain self-assembly gel;Bacillus subtilis is embedded and handled, rhamnolipid is pre-emulsified, chitosan oligosaccharide is crosslinked with boric acid treatment, and is blended;Nitrogen source carrier is heated to melt, add self-assembly gel, mix evenly;Temperature control, add 3,4-dimethyl pyrazole phosphate, and keep warm reaction;Cooling, add the blend obtained in step S200, binder, mix evenly;Extrusion granulation, after fluidized bed drying, slow-release coating is carried out, and the target compound fertilizer is obtained.The application makes disease control efficiency to improve to 89.2%, and blocks nitrosomonas AMO enzyme activity for 120 days.

The present application relates to a kind of high nutrient high activity chemical fertilizer biological compound fertilizer and its preparation and application, belong to agricultural fertilizer technical field.The high nutrient high activity chemical fertilizer biological compound fertilizer of the present application includes inorganic fertilizer and microbial inoculant, the nitrogen phosphorus potassium nutrient content of the chemical fertilizer biological compound fertilizer is greater than 40%, and microbial viable count is above 200 million cfu / g, also includes microbial protective agent, the mass ratio of the microbial protective agent and microbial inoculant is ≥1.The high nutrient high activity chemical fertilizer biological compound fertilizer product of the present application realizes the deep compound of chemical fertilizer and active microorganism, has multiple efficacy of chemical fertilizer and microbial fertilizer, overcomes the neck blocking technical problem that chemical fertilizer and microbial fertilizer are incompatible in production, storage and transportation, use process, significantly improves chemical fertilizer utilization efficiency, reduces fertilizer use cost, solves the problem that microbial fertilizer cannot be generally used in field crops, integrates fertilizer yield and quality improvement, fertile soil and pollution prevention and other functions.

The present invention relates to a fertilizer particle comprising one, two or three of from 1.0 to 30 wt.% of nitrogen (N), from 1,0 to 52 wt.% of phosphorus (P) (expressed as P2O5), from 1,0 to 60,0 wt.% of potassium (K) (expressed as K2O), depending on whether the fertilizer particle is a K, a NP or a PK, or a NPK fertilizer, and from 0.0001 to 5.0 weight% of at least one polysaccharide, more in particular chitosan, as a biostimulant, based on the total weight of the fertilizer particle. The present invention furthermore relates to a method to produce such fertilizer particles.

The invention belongs to the technical field of seedling culture. The invention provides a special nutrient solution for floating seedling raising of tobacco. The nutrient solution comprises the following components: 1000g of water, 0.3-0.5 g of acorus calamus and goldhair hedyotis herb aqueous extract fermented product, 0.1-0.3 part of corn straw steam explosion enzymolysis fermented product, 0.2-0.4 g of calcium ammonium nitrate, 0.6-0.8 g of potassium sulfate, 0.3-0.5 g of ammonium bicarbonate, 0.3-0.5 part of ammonium dihydrogen phosphate, 1-2mg of boric acid and 1-2mg of zinc sulfate. The nutrient solution special for tobacco floating seedling raising can remarkably improve the emergence rate of floating seedling raising, improve the seedling strengthening index and greatly reduce the disease index of tobacco infected with black shank; when the special nutrient solution for tobacco floating seedling raising is prepared, the used technical treatment means are mature technologies in the industry, so that the special nutrient solution has higher feasibility and high industrial application value.

The present invention comprises one or more organic solvents that create a non-aqueous organo solvent delivery system, (NOSDS), and one or more Organo Polycarboxylate functionalities, OPCF, that results in a stable, non-aqueous solution that can easily, safely, evenly and economically coat nitrogen source granules and / or be added to a mobile liquid form of a nitrogen source such as an aqueous dispersion, pressurized ammonia gas or molten urea and / or molten modified urea. Using these solvents provides more flexibility for nitrogen source manufacturers to produce nitrogen sources designed for a particular soil or plant. The liquid solutions are comprised of NOSDS and OPCFs and one or more of a) nitrification inhibitors, b) urease inhibitors, c) pesticides, d) fungicides, e) herbicides, f) insecticides and g) micronutrients.

The invention relates to the technical field of plant cultivation, in particular to a high-survival-rate seedling transplanting method. The transplanting method comprises the following steps: classifying and screening nursery stocks to obtain screened nursery stocks; lifting the screened seedlings according to a preset soil ball diameter to obtain a seedling transport body; loading the nursery stock transportation body into a container containing a pretreated nursery substrate (perlite, dried chicken manure, peat soil, straw and decomposed sweet potato seedlings) to obtain a nursery stock transplanting body; transferring the nursery stock transplanting body into the planting ditch for bed arrangement operation to obtain a nursery stock transplanting bed body; performing early-stage management on the nursery stock transplanting bed body to obtain a nursery stock bed; in the early-stage management, a compound organic fertilizer (rape seed cake, sheep manure, humic acid, wheat straw, bentonite, boric acid, magnesium sulfate, ammonium sulfate, calcium superphosphate, potassium sulfate and water) is used for additional fertilization; transplanting and planting the nursery stock bed to obtain transplanted nursery stocks. According to the method, by constructing a technical closed loop of root system microenvironment restoration, gradient adaptation and precise nutrition, the transplanting survival rate of the seedlings can be effectively increased.

The present invention relates to novel nitrification inhibitors of formula I, which are alkoxypyrazole compounds. Moreover, the invention relates to the use of compounds of formula I as nitrification inhibitors, i.e. for reducing nitrification, as well as agrochemical mixtures and compositions comprising the nitrification inhibitors of formula I.