60results about How to "Reduce salt damage" patented technology

The invention relates to a soil conditioner, in particular to a compound water retention soil conditioner and preparation thereof. The soil conditioner comprises the components by weight parts: 100 to 200 parts of organic matter, 0.2 to 3 parts of active cover agent, 150 to 200 parts of acrylamide, 50 to 100 parts of starch, 20 to 50 parts of attapulgite, 20 to 40 parts of porous inorganic matter, 30 to 60 parts of clay, 0.5 to 2 parts of microorganism microbial inoculum, 100 to 150 parts of acid liquid, 2 to 4 parts of initiator, 0.5 to 1 part of crosslinking agent, 1 to 5 parts of urea and 0.03 to 1 portion of yeast. The compound soil conditioner reserves the advantage of water retention; at the same time, because equivalent organic materials, the porous inorganic matter, the clay and the like are added to the soil conditioner, the soil conditioner has the functions of modifying soil structure, enhancing the organic matter of soil and improving the pH value of the soil; and because humic acid is added, the soil conditioner has the function of a urease inhibitor to a certain degree and enhances the utilization efficiency of a fertilizer N applied together with the soil conditioner.

The invention discloses an organic-inorganic compound fertilizer and a preparation method thereof. The organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 25-30 parts of green algae, 12-17 parts of humic acid, 7-12 parts of bagasse mortar, 8-12 parts of saw dust, 7-15 parts of vermiculite, 5-10 parts of filtration mud, 5-10 parts of yeast organic waste water concentrated liquid, 5-8 parts of cane slag, 2-5 parts of sugarcane top and 2-5 parts of microbial strain liquid. The amount of the compound fertilizer organic matter is large than or equal to 55 weight parts, the total amount of NPK inorganic matters is large than or equal to 12 weight parts, the amount of the moisture is less than or equal to 25 weight parts, the effective viable count is large than or equal to 2 hundred million / gram, and the pH is 5.0-8.5. The preparation method comprises the following steps: fermenting twice by using microbial strains; adding inorganic porosity vermiculite, evenly mixing, and naturally drying so as to obtain the organic-inorganic compound fertilizer. Biodegradable agricultural and industrial production waste water, waste slag and sugarcane top regeneration organic matters are fully utilized as the raw materials, thereby improving the acidity and basicity of soil, improving the cation exchange capability (CEC) of the soil, improving the utilization of fertilizer, promoting the growth of crop and increasing the yield of the crop. The organic-inorganic compound fertilizer has the advantages of good ecological benefits and circular economy benefits and can be used as an additional fertilizer for crops such as sugarcane, watermelon and the like.

The invention relates to a leaf vegetable organic fertilizer and a preparation method thereof. The preparation method comprises the steps of grinding maize straws, wheat straws, soybean straws and sesame straws into straw particles according to a mass ratio of 3:3:2:2, pretreating the straw particles by adding water and ammonium hydroxide to obtain a mixture A; carrying out ultraviolet ray treatment on the taken duck manure and duck feathers, and then carrying out ozone treatment, thus obtaining a mixture B; adding aspergillus niger and saccharomycetes into a mixture of grinded manioc wastes, grinded kelp wastes and water, and fermenting to obtain a mixture C; mixing the mixtures A, B and C, shell powder, plant ash and sodium humate, and adding EM (Effective Microorganism) for fermentation to obtain a mixture D; and adding bone meal and charcoal dust into the mixture D, then carrying out ozone sterilization, drying, charging in a separating manner, and carrying out ultraviolet sterilization to obtain the leaf vegetable organic fertilizer. The prepared leaf vegetable organic fertilizer contains various nutritional ingredients needed by the growth of leaf vegetables, regulates soil, activates the activity of microorganisms in the soil, overcomes soil hardening, and improves the permeability of soil air.

The invention relates to a special fertilizer for corn, in particular to a special fertilizer for corn with water holding and soil improvement effects and preparation thereof. The special fertilizer comprises the following components in part by weight: 100 to 200 parts of organic substance, 200 to 300 parts of compound fertilizer, 0.2 to 3 parts of active covering agent, 150 to 200 parts of acrylamide, 50 to 100 parts of starch, 20 to 50 parts of attapulgite, 20 to 40 parts of porous inorganic substance, 30 to 60 parts of clay, 100 to 150 parts of acid liquid, 2 to 4 parts of initiator, 0.5 to 1 part of cross linker, and 0.03 to 0.1 part of compost leaven. The compound fertilizer mainly comprises the following components by weight based on effective content: 1 percent of nitrogen (N), 0.45 to 0.60 percent of phosphorus (P), 0.40 to 0.55 percent of potassium (K) and 0.10 to 0.25 percent of zinc (Zn); and hydroquinone and dicyandiamide are 2.0 to 3.0 percent of the consumption of N fertilizer. The special fertilizer for corn keeps certain advantage of a water holding agent; because proportional organic substance, porous inorganic substance, clay and the like are added, the special fertilizer plays a role in improving the structure, organic substances and pH value of the soil; because humic acid is added, the special fertilizer can play a role of urease inhibitor to certain degree; and by matching the urease inhibitor, the utilization efficiency of N in the compound fertilizer can be improved.

The invention discloses a biological sweet sorghum seed-pelleting coating agent, which comprises the following components in percentage by weight: 20 to 30 percent of compound bacteria culture, 5 to 10 percent of streptomycs micuoflavus culture, 0.03 to 0.07 percent of plant growth regulating substance, 6 to 10 percent of super absorbent resin, 0.05 to 0.15 percent of micronutrient element, 55 to65 percent of attapulgite and 3 to 5 percent of water-soluble adhesive. The biological sweet sorghum seed-pelleting coating agent can be used for preparing a biological sweet sorghum seed-pelleting agent, and the biological sweet sorghum seed-pelleting agent can absorb salt in the soil and immobilize the salt in vivo of organisms of efficacious colony so as to reduce the salt around sweet sorghumseeds and saline soil damage; simultaneously, the efficacious colony is propagated in the soil so as to activate mineral nutrition in the soil and increase mineral nutrition for the seeds; and the secretion of the efficacious colony in the propagating process has the effect of regulating substances, and can improve the anti-salt capacity of the sweet sorghum seeds and the germination rate.

The invention relates to a special fertilizer for Zhanhua winter jujubes, a preparation method and the application thereof. The special fertilizer for Zhanhua winter jujubes comprises the following raw materials in parts by mass: 50 to 70 parts of zymolysing oil residues, 10 to 20 parts of urea, 5 to 15 parts of DAP (diammonium phosphate), 10 to 18 parts of potassium sulfate, 0.5 to 1 part of ferrous sulphate, 0.3 to 0.7 part of zinc sulfate and 0.2 to 0.4 part of boric acid, wherein the zymolysing oil residue is a product produced by carrying out biodegradation on the oil residues by using lipases in bacillus subtilis fermentation broth and yarrowia lipolytica fermentation broth and proteases in geotrichum candidum fermentation broth and lactobacillus plantarum fermentation broth. The special fertilizer of the invention is prepared especially according to the nutrient status of soils in the main producing areas of Zhanhua winter jujubes and the regulation of nutrient absorption of the jujubes, and has the advantages of reasonable nutrient ratio and strong pertinence. The special fertilizer can reduce the salt damages caused by fertilizing and the organic and inorganic combination can improve the soil fertility.

The invention relates to a saline-alkali-resistant long-effect stable fertilizer and a preparation method thereof. The fertilizer is prepared from the following raw materials in parts by weight: 30 to 50 parts of fermented cow dung, 20 to 30 parts of desulphurization gypsum, 3 to 6 parts of chitin, 3 to 6 parts of algin, 1 to 5 parts of natural wood peat, 15 to 35 parts of nitrogen fertilizers, 0.1 to 0.6 part of urease inhibitors, 0.5 to 1.2 parts of nitrification inhibitors, 1 to 5 parts of kieselguhr, 15 to 25 parts of phosphatic fertilizers, 15 to 25 parts of potash fertilizers, 0.4 to 1 part of zinc sulfate and 0.4 to 1 part of borax. The saline-alkali-resistant long-effect stable fertilizer integrates the soil improvement and the fertilizer supply; the soil salt damage can be reduced; the soil structure can be improved; the soil fertility level can be improved; the problem that the continuable utilization is influenced due to serious saline damage and low fertility of the soil can be solved.

The invention relates to an organic fertilizer for flowers and a production process of the organic fertilizer. The production process comprises the following steps: selecting corn straws, wheat straws, soybean straws and sesame straws according to a mass ratio of 2:2:1:1 and crushing straw grains; adding water, urea and ammonia water, and pre-treating to obtain a mixture A; treating respectively chicken manure and chicken feathers taken according to the mass ratio of 10:1 by ultraviolet lights and then treating by ozone; mixing to obtain a mixture B; adding aspergillus niger and saccharomycetes into a mixture of crushed peanut shells, crushed fallen leaves of broad-leaved trees and the water to obtain a mixture C; mixing the mixture A, the mixture B, the mixture C, shell powder and sodium humate; adding an EM bacterium agent and fermenting to obtain a mixture D; adding bone meal, plant ash and charcoal dust into the mixture D; then carrying out ozone sterilization, drying, split charging; and ultraviolet light sterilizing to obtain the organic fertilizer for the flowers. The produced organic fertilizer for the flowers contains various nutritional ingredients needed by the growth of the flowers and can be used for conditioning soil, activating the active rate of microorganisms in the soil, overcoming soil hardening and improving the air permeability of the soil.

The invention discloses a saline and alkaline land improvement method adopting compound waste, and relates to the technical field of saline and alkaline land improvement. The method comprises the following steps that S1, a desulfurized gypsum improvement agent is uniformly thrown to the surface of to-be-improved coastal saline and alkaline land, wherein the application amount of the desulfurized gypsum improvement agent is 1,800-2,000 kg / mu; S2, the coastal saline and alkaline land is subjected to rotary tillage by 15-20 centimeters; S3, after rotary tillage, the coastal saline and alkaline land is deeply ploughed by 30-40 centimeters; S4, the desulfurized gypsum improvement agent is uniformly thrown to the surface of the saline and alkaline land again, wherein the application amount of the desulfurized gypsum improvement agent is 1,800-2,000 kg / mu; S5, the saline and alkaline land is subjected to rotary tillage by 15-20 centimeters again; S6, after 1-2 months, land irrigation, salt leaching and alkali discharging are conducted. The saline and alkaline land improvement method adopting the compound waste has the advantages that industrial waste such as desulfurized gypsum and iron and steel slag is utilized, the improvement cost is reduced, and the salinity in soil and the pH value of the soil are reduced.

The invention discloses a functional composite coated controlled-release fertilizer with a polyolefin wax as a priming coat. The functional composite coated controlled-release fertilizer comprises fertilizer granules and a coating material, wherein the coating material is sprayed to the surfaces of fertilizer granules; the coating material is composed of a polyolefin wax coating, a starch-based polyurethane layer and an epoxy resin layer which are sequentially sprayed to the surfaces of the fertilizer granules; biological stimulin is sprayed between the polyolefin wax coating and the starch-based polyurethane layer or between the starch-based polyurethane layer and the epoxy resin layer. By adopting the functional composite coated controlled-release fertilizer disclosed by the invention, the technical difficulties that a conventional international controlled-release fertilizer is single in function, high in cost and hard to popularize, the controlled-release effect of the fertilizer can be seriously affected by extrusion abrasion in the transportation process, soil pollution can be caused by harmful dyes, sustainable development is hard to achieve as the fertilizer depends on petrochemicals, and excessive residual macromolecule membranes are resulted and are slow to degrade, can be solved, moreover, the problems that the biological stimulin is liable to deactivation when beingin direct contact with soil and fertilizers, release paces of nutrients and stimulin are hard to regulate and control, and the like, can be solved.

The invention relates to a saline-alkali soil crop straw double-layer returning improvement method. The saline-alkali soil crop straw double-layer returning improvement method comprises the followingsteps: step 1, crushing and sterilizing harvested crop straws; step 2, uniformly spreading the crushed straws on the surface of the field, wherein the amount is smaller than the total amount of the crushed straws; step 3, turning the uniformly spread crushed straw into the underground; step 4, uniformly spreading the crushed straw remaining in the step 2 on the surface of the field and turning thecrushed straw into the underground. According to the invention, the accumulation of salt in the ground surface is inhibited, the saline-alkali soil is improved, and the salt damage to crops is reduced; the nutrient substances of the straws are sufficiently returned to the soil, and the soil quality is further improved.

The invention discloses a method for removing sulphate from an outdoor crisp brick cultural relic. The method is as follows: spraying a salt-damaged crisp part of a brick body with a solution A evenly, then evenly spraying the salt-damaged crisp part of the brick body with a deionized water and solution B mixed liquid with the volume ratio of deionized water to solution B of 1: 6 to 9, and repeating spraying with the solution A and the deionized water and solution B mixed liquid for 3 to 8 times, wherein the solution A is an ethanol solution containing 5 to 15 g / L of phosphoric acid and 10 to25 g / L of dihydrate oxalic acid, and the solution B is a methanol containing 8 to 25 g / L of barium hydroxide octahydrate. According to the method, the outdoor crisp brick cultural relic is desalted for transformation of most destructive Na2SO4 in the brick relic into BaSO4 to deposit in the brick, chlorine salt and sulfate that are not involved in the transformation can be separated from the brickbody in the manner of moving of salts along with water; while desalination, reinforcement function is achieved, the ''fragile'' status of salt-damaged crisp powder of the brick body may not be aggravated, the mechanical strength is significantly increased, the salt penetration increases after the desalination, and the salt retention time in the brick can be reduced.

The invention discloses a chitosan-coated controlled release fertilizer for saline-alkaline soil and relates to the field of agriculture. The chitosan-coated controlled release fertilizer for saline-alkaline soil is made from chitosan, flyash, stalks, animal waste, furfural residue, citric acid residue, distillers' grains, desulfurization gypsum and the like, via the steps of fermenting, mixing, crushing, granulating, dissolving, spraying, perforating and the like; the wastes such as stalks, animal waste and furfural residue are fermented and then coated with chitosan such that the fertilizer may be released slow, fertility period is extended, fertilizer utilization rate is increased, saline-alkaline soil is better improved, and salt damage is relieved.

The invention relates to a special functional organic and inorganic controlled-release blended fertilizer for wheat in coast saline-alkali soil. The blended fertilizer contains the following components in parts by mass: 2000-3600 parts of a humic acid conditioner, 60-100 parts of common urea, 200-280 parts of sulfur and resin controlled-release urea, 500-900 parts of calcium superphosphate, 50-100 parts of a potassium sulfate fertilizer, 5-15 parts of a zinc sulfate fertilizer and 5-15 parts of a borax fertilizer. The special formula fertilizer for wheat is prepared according to the salinity content situation of the coast saline-alkali soil and the characteristics of high alkalinity, low effective phosphorus content and extremely high rapidly available potassium content; the fertilizer has the soil effects that the pH value of the soil is adjusted, the salt damage is retarded, the formation of soil aggregates is promoted, and the soil moisture is preserved; the fertilizer has the characteristics that the controlled release of nutrients is realized, the fertilizer efficiency is improved, the soil does not need to be topdressed once fertilized, and finally, the effects of improving the soil, increasing the yield and effect and saving the labor force are achieved; and the fertilizer has relatively good ecological, economic and social benefits.

The invention discloses a preparation method of a bio-organic fertilizer which is prepared from nitrate mud, animal waste, flint clay, a rapeseed cake, phosphorus powder, plant ash and biogas fluid via combination and fermentation. The preparation process comprises the following steps: respectively airing the nitrate mud, the flint clay, the phosphorus powder, the rapeseed cake, the plant ash and the animal waste until the water content of the materials is lower than 12%, then respectively smashing the materials, mixing the materials and stirring uniformly to obtain a mixed material, mixing the biogas fluid with the mixed material to stir uniformly and adjusting the water content of the mixed material to 55-65%, and carrying out pile fermentation. The bio-organic fertilizer is wide in raw material source, low in cost, simple in preparation process, low in prepared product cost, comprehensive in nutrient element and good in fertilizer effect, and has the properties of increasing the organic matters of the soil, improving the soil structure, promoting the microbial activities of the soil, strengthening the fertilizer maintenance and fertilizer supply of the soil, increasing the crop output and improving the agricultural product quality.

The invention discloses an organic compound fertilizer for flowers and a preparation method of the compound fertilizer and relates to the field of fertilizers. The organic compound fertilizer for the flowers is prepared from, in parts by mass, 8-15 parts of chicken manure and chicken feather, 10-20 parts of straw, 1-2 parts of peanut shells, 2-3 parts of fallen leaves of broad-leaved trees, 8-12 parts of bone powder, 7-15 parts of charcoal powder, 30-40 parts of a chemical fertilizer, 5-15 parts of a conditioner, 2-7 parts of active substances, 9-15 parts of ammonia water, 5-8 parts of shell powder and 10-12 parts of sodium humate. With the adoption of the technical scheme, the compound fertilizer is suitable for growth of the flowers, water loss and evaporation can be reduced, the arid pressure is reduced, fertilizer maintenance is realized, the chemical fertilizer is reduced, salt and alkali damage is reduced, the soil fertility is improved under the condition that the dosage of the chemical fertilizer is reduced or the chemical fertilizer is gradually replaced, the agronomic trait of crops can be improved, the crops can have thick and stout stems and dark green leaf color and can bloom in advance, the disease resistance and the stress resistance of the flowers are enhanced, and diseases caused by continuous cropping of the flowers and soil-borne diseases are reduced.

The invention discloses a carbon-based soil conditioner for sticky saline-alkali soil, and relates to the technical field of soil conditioners, and the carbon-based soil conditioner comprises the following raw materials in percentage by weight: 45%-60% of biomass charcoal, 5%-10% of pyroligneous liquor, 10%-15% of humic acid, 5%-10% of phosphogypsum, 10%-15% of furfural residue and 5%-10% of aluminum sulfate. By utilizing the porous structure characteristic of the biochar, the water and fertilizer retention capacity of the soil is improved; by adding the biomass charcoal particles, the soil carbon pool can be increased, soil pores can be increased, the soil viscous structure can be improved, and the soil microbial environment can be improved; the pyroligneous liquor effectively kills soilpathogenic bacteria and prevents and treats soil-borne diseases; the carbon-based soil conditioner is rich in soluble organic carbon and organic acids, and can stimulate crop growth, adjust soil pH, activate medium trace elements, improve soil and improve soil fertility level; the biochemical humic acid can improve the soil structure, improve and fertilize soil and stimulate crop growth; and the furfural residues can effectively reduce the pH of the soil. By adopting the carbon-based soil conditioner, seedling protection, high quality and high yield of crops in viscous saline-alkali soil are realized.

The invention provides organic fertilizer for agricultural planting and a preparation method thereof. The organic fertilizer is prepared from base fertilizer, crop stalk, livestock excrement, ammoniachloride, agricultural rare earth, plant ash, bentonite powder, new precipitation metatitanic acid, selenium ore active powder, citric acid, biological bacteria, shell powder, candy pomace, regulatorand deionized water. The prepared organic fertilizer is suitable for crop growth, water loss and evaporation in soil can be reduced, drought pressure can be relieved, fertilizer can be maintained, chemical fertilizer can be reduced, salt and alkali damage can be relieved, on the condition that chemical fertilizer consumption is reduced or chemical fertilizer is replaced step by step, the soil fertility is improved, the crop agricultural character can be improved, crop stems are thick and solid, the leaf color is dark green, blooming is achieved in advance, the disease resistance and stress resistance of crops are enhanced, and diseases and soil transfer diseases caused by crop continuous cropping are relieved.

The invention discloses a cotton planting method. The cotton planting method comprises the steps that big ridges are formed, land is prepared and turned over to make the ground flat, and centralized fertilizer application is performed at the positions about to serve as ridge tips in the ridge directions; sowing is performed, wherein bunch planting is performed at the end of April to the beginning of May; field management is performed, S-metolachlor is sprayed for weeding from sowing to seedling emergence, topping is performed in the last ten-days period of July, one top and one leaf are picked off for each plant, old leaves of lower portions and middle portions of main stems and leaves in cotton fields in which growth vigor is too strong are removed in batches before and after blossoming; diseases and insect pests are prevented and controlled, wherein acarid insecticides are selected for prevention and control in a red spider high-incidence season, and pyrethrins insecticides are selected for prevention and control in a pink bollworm high-incidence season. By adopting the cotton planting method, the cotton salt damage is effectively relieved, meanwhile water logging damage is also avoided, and the ecological conditions and growing environment of the cotton fields in low-lying water-logging saline and alkaline land are remarkably improved.

The present invention discloses a method for preparing a soil amendment, and the method is mainly characterized in that: by using active ions of humic acid with addition of appropriate amounts of U.S. high-tech products, and via chelation and a reasonable ratio, the soil amendment is obtained in four steps. The technical solution of the invention comprises the characteristics of the humic acid, so elution of soil soluble salts can be accelerated to prevent accumulation of salts in the surface soil, which is contribute to the formation of soil granular structures; the permeability of the soil can be increased, the hydrothermal performance and oxygen content of the soil can be improved, and the development of soil microorganisms can be promoted, which is conducive to the growth of a root system and the increase of root activity; and continued water supply capacity of soil for crops is improved, so the soil amendment prepared by the method can be applied to lands with high salt content soil, heavy clay, and poor permeability, especially protected fields such as greenhouses and saline-alkali soil.

The invention relates to a preparation method of a disease and pest resistant flower fertilizer. The method includes the steps of: a. mixing agricultural and forestry waste with a herbicidal activity plant evenly, crushing the mixture into powder, adding water and ammonia water in order, mixing the substances evenly, conducting sealing, and performing placement under a natural state to obtain a mixture A; b. adding a nutrient into the mixture A and stirring the substances evenly, then adding yeast and conducting sealing fermentation, adding the fermentation product into a sodium hydroxide solution, adjusting pH, conducting heating and stirring to obtain a mixture B; c. adding a conditioner, charcoal powder, trace elements, sodium humate and an additive into the mixture B and stirring the substances evenly, then performing drying treatment to obtain a mixture C; and d. subjecting the mixture C to air drying treatment at room temperature, and then performing sterilization treatment, thus obtaining a finished product. The disease and pest resistant flower fertilizer prepared by the method provided by the invention can improve soil fertility, enhance disease resistance and stress resistance of flowers, and alleviate diseases and soil-borne diseases caused by continuous cropping of flowers.

The invention relates to the technical field of fertilizer preparation, and discloses a humic acid plant growth nutritional and efficient solid fertilizer. The humic acid plant growth nutritional andefficient solid fertilizer comprises the following raw materials in parts by weight: 30-50 parts of active humic acid, 2-8 parts of potassium hydroxide, 30-40 parts of an inorganic fertilizer, 30-40 parts of an organic fertilizer, 2-8 parts of a trace element fertilizer, 2-8 parts of a microbial agent, 8-20 parts of a hydrophilic monomer, 3-6 parts of an activator, 3-6 parts of a catalytic oxidantand 1-2 parts of a buffer agent. The invention relates to the humic acid plant growth nutritional and efficient solid fertilizer and a preparation method thereof. The preparation method comprises following steps: adding active humic acid and potassium hydroxide into a mixture II; the obtained compound fertilizer containing the active humic acid is suitable for the growth of crops, can reduce water loss and evaporation, relieve drought pressure, preserve fertilizer, reduce the use of chemical fertilizer, reduce saline-alkali damage, improve soil fertility, improve crop growth and enhance croproot activity under the condition of reducing the use amount of the chemical fertilizer or gradually replacing the chemical fertilizer, so that nutrients in soil can be efficiently and quickly absorbed.

The invention relates to the field of bioorganic fertilizer preparation processes and in particular relates to an insecticidal bioorganic fertilizer and a preparation method thereof. The insecticidal bioorganic fertilizer comprises the following components: 20-30 parts of pig manure, 10-20 parts of cow manure, 30-50 parts of chicken manure, 1-3 parts of probiotic original liquid, 15-20 parts of rice washing water, 1-2 parts of bisultap, 0.5-2 parts of fenvalerate and a proper amount of tartaric acid. The insecticidal bioorganic fertilizer has the characteristics that the insecticidal bioorganic fertilizer can conduce to conditioning soil, increasing the activation rates of microorganisms in soil, overcoming soil hardening, improving the soil air permeability, reducing water loss and evaporation, reducing the drought stress, reserving fertilizers, reducing chemical fertilizers, reducing damages caused by salt and alkali, increasing the soil fertility under the condition that consumption of the chemical fertilizers is reduced or the fertilizer replaces the chemical fertilizers step by step to substantially increase the yields of food crops, commercial crops, vegetables and melons and fruits, improving the quality of agricultural products and enabling fruits to have bright colors and uniform sizes and ripen in a concentrated manner; the sugar contents and vitamin contents of melon agricultural products are increased, so that the melon agricultural products have good tastes and are beneficial to expanding export and increasing the selling prices.

The invention discloses a salt-resistant and waterlogging-proof concave-convex cultivation method for cotton in coastal saline-alkali soil. The method comprises the following steps: ridging before winter, irrigating with water in ditches to press salt, covering with films to preserve soil moisture and inhibit salt in spring, punching holes on furrow films after a certain ground temperature is reached, and sowing to form concave planting; in the first ten-day period of June, uncovering the mulching film, leveling ridges, performing hilling to the base of the cotton, forming furrows into ridges, forming ridges into furrows, and achieving convex planting. The cultivation method is simple, convenient and practical, salt damage is reduced, seedling emergence of saline-alkali soil is facilitated, the method is also suitable for waterlogging prevention and drainage of saline-alkali soil crops, and the lodging-resistant, stress-resistant and yield-increasing effects are obvious.

The invention belongs to the technical field of planting and particularly discloses a method for planting tea trees in weak-saline-alkali soil. The method comprises steps as follows: forming a ridge ladder and densely planting a row of tea trees in the middle of a slope on each of two sides of the ridge ladder. According to the method, the law of movement of water and salt in soil is fully applied; under the actions of salt accumulation by the ridge ladder and drainage by furrows,, the different distribution of salt and moisture in the soil is directionally induced, so that the lower salt content and the suitable moisture content are maintained in the soil in root regions of the tea trees planted in the middles of the slopes on the two sides of the ridge ladder, and the normal growth of the tea trees in the weak-saline-alkali soil can be guaranteed; by means of the dense planting of the tea trees, the full stand can be realized, and good quality and high yield are realized.

The invention discloses a light and simple cultivation method for open ground direct seeding of short-season cotton in coastal saline soil. According to the method, high-quality short-season cotton varieties are adopted, and a novel cultivation manner is established by adopting the following measures: watering and building soil moisture, mechanically driving soil to build a seedbed, precise seeding on an open ground, combining a quick-acting fertilizer and a slow release fertilizer for single fertilization, performing chemical top sealing, harvesting cotton in a concentration manner and so on, therefore, on the bases of reducing salt damage and ensuring normal emergence of cotton seedlings and yield formation, the materialization and labor input can be effectively reduced, the pollution caused by pesticides and plastic film residues is reduced, and the comprehensive benefits of cotton planting are improved.

The present invention discloses a saline-alkali soil modifier and a special microcapsule-type organic acid slow-release preparation thereof. The special microcapsule-type organic acid slow-release preparation is prepared from the following components by weight: 100 parts of water, 1-80 parts of an organic acid, 10-50 parts of a copolymerization monomer, 0.2-10 parts of an emulsifier, 100-500 parts of an organic solvent and 0.05-5 parts of an initiator. The saline-alkali soil modifier comprises, by weight, 1-30 parts of the organic acid slow-release preparation and 60-90 parts of active calcium. Compared with the existing saline-alkali soil modifier in the prior art, the saline-alkali soil modifier of the present invention has the following advantages that the calcium ions are provided while the organic acid substances are slowly released, the salt damage caused by the applied soil modifier can be effectively reduced, the release time of the organic acid can be significantly prolonged, the saline-alkali soil modifier acts in the whole growing and developing period of crops, the continuous damage of salt accumulation and alkali accumulation on crops can be effectively reduced, crops can be protected from salt damage and alkali damage during the whole growth period, the crop yield can be improved, and the improving effect on the high saline-alkali soil can be comprehensively improved.

The invention discloses a saline-alkali-resistant bio-insecticidal compound fertilizer containing seaweed and a preparation method thereof. The fertilizer is prepared from rice pole, peanut seedling,seaweed, sargentgloryvine stems, azedarach, fructus cnidii, fructus dauci carotae, ferula asafoetida, viola dissecta, herba siegesbeckiae, selfheal, animal excrement, EM bacterial liquid, an EM nutrient solution, an urease inhibitor, a humic acid silicon fertilizer, zinc sulfate, magnesium sulfate, a calcium fertilizer, a nitrogen fertilizer, a phosphate fertilizer, desulfurized gypsum, ammonium potassium fulvate and the like through fine selection, grinding, decocting, ultrafine grinding, enzymatic hydrolysis, centrifugation, fermentation, mixing and the like. The compound fertilizer has thefunctions of salt-alkali resistance and fertilization of fertile soil, the sustainable productivity of soil is improved and the insecticidal sterilization function of soil can be achieved.

The invention discloses an organic-inorganic compound fertilizer and a preparation method thereof. The organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 25-30 parts of green algae, 12-17 parts of humic acid, 7-12 parts of bagasse mortar, 8-12 parts of saw dust, 7-15 parts of vermiculite, 5-10 parts of filtration mud, 5-10 parts of yeast organic waste water concentrated liquid, 5-8 parts of cane slag, 2-5 parts of sugarcane top and 2-5 parts of microbial strain liquid. The amount of the compound fertilizer organic matter is large than or equal to 55 weight parts, the total amount of NPK inorganic matters is large than or equal to 12 weight parts, the amount of the moisture is less than or equal to 25 weight parts, the effective viable count is large than or equal to 2 hundred million / gram, and the pH is 5.0-8.5. The preparation method comprises the following steps: fermenting twice by using microbial strains; adding inorganic porosity vermiculite, evenly mixing, and naturally drying so as to obtain the organic-inorganic compound fertilizer. Biodegradable agricultural and industrial production waste water, waste slag and sugarcane top regeneration organic matters are fully utilized as the raw materials, thereby improving the acidity and basicity of soil, improving the cation exchange capability (CEC) of the soil, improving the utilization of fertilizer, promoting the growth of crop and increasing the yield of the crop. The organic-inorganic compound fertilizer has the advantages of good ecological benefits and circular economy benefits and can be used as an additional fertilizer for crops such as sugarcane, watermelon and the like.