69results about How to "Improve organic matter" patented technology

The invention discloses a carbon-based composite material for arsenic and cadmium polluted soil remediation and application of the composite material. The carbon-based composite material disclosed by the invention is prepared by the steps: taking crop straws as raw materials, and charring to prepare charcoal; mixing with an iron salt solution according to a certain solid-liquid ratio, regulating the pH value of the solution in the process so as to realize coprecipitation of the two materials; performing pyrolysis, thereby obtaining the carbon-based composite material. The carbon-based composite material prepared in the invention is applied to arsenic and cadmium compound polluted soil, and methods such as turning over, watering and the like are combined, so that the content of arsenic and cadmium in an effective state can be obviously reduced; therefore, the arsenic and cadmium in the soil can be transferred to a direction with low biotoxicity and migration, the physicochemical properties of the soil can be improved to a certain degree, and the composite material is suitable to be applied to multiple types of soil. The arsenic and cadmium ions in a water body can be effectively removed, the preparation process is simple in operating steps, and the material is wide in source, low in production cost and environment-friendly.

The invention relates to the field of soil remediation, particularly to a composite conditioner for remediation of farmland heavy metal contaminated soil and a preparation method thereof. The composite conditioner comprises the following substances in parts by mass: 40 to 55 parts of modified biological carbon, 15 to 25 parts of poultry manure, 15 to 25 parts of modified clay, 5 to 8 parts of phosphate and 5 to 12 parts of quick lime. Through combined utilization of organic modified substances, inorganic modified substances and other effective components, the composite conditioner achieves the good effect of multi-action synergetic remediation, and has the characteristics that the cost is low, the effect is good, the stability is high, the soil cultivability can be improved, and increase of crop yield and income is facilitated.

The invention relates to the technical field of soil conditioners and particularly relates to a soil heavy metal biological fixing agent and an application method thereof. The formula of the soil heavy metal biological fixing agent is that every one kilogram of an organic fertilizer is added with 2-10 g (109 CFU / g) of B. natto solid leavening agent, 2-10 g (109 CFU / g) of B.mucilaginosus solid leavening agent, 2-6 g (109 CFU / g) of B.megaterium solid leavening agent and 4-10 g (1010 CFU / g) of Trichoderma koningii solid leavening agent, wherein the main ingredients of the biological organic fertilizer contain more than 40% of organic matter, more than 20 million / g of effective viable count, and more than 5% of total nutrient. The soil heavy metal biological fixing agent is low in cost, has few environmental risks, remarkably reduces the absorption of the heavy metals of the crops, improves the soil fertility, effectively prevents and cures the soil-borne diseases and increases the economic benefit of the crops.

The invention relates to a special carbon-based slow release nitrogen fertilizer for vegetable fields, which aims to solve the technical problem that the nutrient release of the existing nitrogen fertilizer is overquick. The slow release nitrogen fertilizer is prepared by taking 95-100 parts of nitrogen loaded biochar, 1-5 parts of attapulgite and 2-3 parts of calcium lignosulphonate as raw materials, stirring, drying, granulating the raw materials and the like. The special carbon-based slow release nitrogen fertilizer and the preparation method thereof disclosed by the invention have the positive beneficial effects that the nitrogen nutrient release duration is prolonged, and the coupling between nutrient release and crop demands is high, so that the leaching loss of nitrogen nutrients is lower, and the fertilizer utilization rate is improved; the slow release nitrogen fertilizer also has a function of improving the physical and chemical properties of soil of vegetable fields, and can increase the organic matter of soils and the cation exchange capacity and granular structure of soil, prevent the soil from hardening, and improve the hydrothermal condition of soil; used raw materials are wide in sources, cheap and easily available, and therefore, the slow release nitrogen fertilizer is low in production cost, and beneficial to realizing the ecological high-valued utilization of agricultural wastes.

A method for assisting in tailings restoration through ryegrass and planting the ryegrass on restored land includes the following steps that tailings is turned over by 18-22 cm and leveled; fresh ryegrass growing to the florescence are shorn into broken segments being 3-5 cm long so that ryegrass green manure can be formed; the ryegrass green manure is spread on the tailings land which is turned over and leveled, and the ryegrass green manure and the tailings are fully mixed evenly so that smooth planting land can be formed; ryegrass seeds are sown on the planting land. The planting method includes the steps that the seeds are processed and sown; the ryegrass is harvested regularly while stubble is left and the harvested ryegrass is returned to the field, 3-5 years after the ryegrass is planted, the whole ryegrass plants are recycled, the land is turned over, then, ridges are reconstructed for planting, and the plating method is repeated in this way. Due to the virtuous cycle that the planted ryegrass is returned to the field, the ecological environment can be continuously improved, and the landscape phenomenon of the tailings can be improved. The method has the advantages that operability is high and ecologically friendly and restoration cost is substantially reduced and the method is an important measure for ecological restoration of the tailings.

The invention discloses a biochar soil remediation agent and a preparation method thereof. The biochar soil remediation agent is prepared from titanium dioxide supported biochar, compost materials, compound fertilizer, a biological bacteria solution, clay, a binder and microelements; the preparation method of the biochar soil remediation agent comprises steps as follows: preparation of titanium dioxide supported biochar, preparation of the compost materials, preparation of the biological bacteria solution, preparation of the clay, preparation of a mixed material coated with biochar, pelletizing and drying. The preparation process is environmentally friendly and simple to operate, the raw materials are widely sourced, the prepared soil remediation agent not only can adsorb and degrade pollutants in soil, but also increases content of organic matter and microorganisms in the soil, and accordingly, economic benefit and environmental benefit are remarkably increased.

The invention belongs to the technical field of saline-alkali soil improvement and particularly relates to a saline-alkaline soil improving agent. The saline-alkali soil improving agent is characterized by comprising the following raw materials in parts by weight: 10-15 parts of flue gas desulfurization wastes, 20-30 parts of mixed grass meal, 3-8 parts of compound microorganisms, 5-15 parts of sawdust, 6-15 parts of sweet clover root powder and 10-15 parts of kieselguhr, wherein the mixed grass meal consists of sainfoin, symphytum officinale, coronilla varia and festuca arundinacea, and the compound microorganisms consist of nitrogen-fixing bacteria, Bacillus subtilis, bacillus licheniformis and bacillus mucilaginosus. The improving agent disclosed by the invention not only can greatly and effectively improve the current situations of saline-alkali soil, but also can utilize wastes and recycle resources and ecological vegetation, and is environment-friendly, safe and free of secondary pollution problem.

The invention relates to high-efficiency microbial organic fertilizer prepared from methane slag. The high-efficiency microbial organic fertilizer mainly comprises methane slag, plant growth regulator, microbial functional bacteria, binder and disintegrating agent which are used as active ingredients. The high-efficiency microbial organic fertilizer comprises the following components in percentage by weight: 30.0 to 85.0 percent of methane slag, 0.001 to 3.0 percent of plant growth regulator, 0.1 to 1.0 percent of microbial functional bacteria, 0.5 to 1.0 percent of binder and 3.0 to 10.0 percent of disintegrating agent and the balance of other aids and fillers which are allowable and acceptable in chemical fertilizer and pesticide. The high-efficiency microbial organic fertilizer is abundant in organic matters, amino acid, nitrogen, phosphorus, potassium, trace elements and the proper plant growth regulator, and can obviously improve fertilizer efficiency of the methane slag, reduce the using amount of the methane slag, regulate growth of potatoes, obviously increase the yield of the potatoes and improve the quality of the potatoes. The high-efficiency microbial organic fertilizer is mainly applied to planting of the potatoes, Chinese medicinal materials and vegetables.

The invention discloses an ecology and environment-friendly soil improvement agent, which is prepared from the following raw materials in parts by weight: 15-25 parts of ore soil filler, 7-11 parts of coal gangue, 8-10 parts of straw, 10-20 parts of mixed grass meal, 3-5 parts of compound microorganisms, 5-7 parts of humate, 8-12 parts of excrement of livestock, 4-6 parts of desulfurized gypsum, 6-8 parts of bamboo charcoal powder and 5-7 parts of trace element additives. The soil improvement agent provided by the invention can effectively overcome the imbalance of nutrient elements in soil, improve soil fertility, loosen the soil, improve fertilizer efficiency, increase the contents of organic matters and nutrients, loosen hardened soil, accelerate a process of raw soil ripening and improve or recover land productivity; furthermore, industrial and agricultural wastes are used as most of the raw materials, so that the soil improvement agent is environmentally-friendly and safe; furthermore, the preparation method provided by the invention is lower in material cost, easy in obtaining of raw materials, simple in technology and easy to operate and in realization of industrial production, thus having higher practical value and a good application prospect.

The invention relates to compound microbial decomposed inoculas, and a preparation method and an application thereof. Effective components of the involved compound microbial decomposing inocula comprise bacillus amyloliquefaciens Ba168, paenibacillus peoriae BC-39, trichoderma harzianum, candida krusei, aspergillus niger and streptomyces griseus. The preparation method comprises that each strain are fermented separately, and the strains are mixed for use according to the proportion after the completion of the fermentation. The involved application is an application of the compound microbial decomposing inocula in degradation of crop straw. The compound microbial decomposing inocula not only give full play to unique degradation function of the bacillus on the straw, are combined with microbial compound flora for efficient synergy in the straw degradation process, thereby efficiently and rapidly degrading the straw, and significantly enhancing soil organic matter and humus levels.

The invention relates to a purple heart pitaya planting and a cultivating method. The method comprises the steps that 1, seeding stage management: at the early stage of characterization , one time of watering is conducted every 2 to 3 days, and timely drainage is conducted in rainy season; 2, at the initial planting period, emergency crops can be interplanted in a new orchard. Sod culture is adopted to the cultivating management once the pediciel of the pitaya climbs to the top of a pillar. Ridge plowing and root covering are conducted according to the root baring situation after raining, and ridge plowing to protect seeding is conducted in winter in the new orchard; 3, scientific fertilizer and water index; 4, pruning; 5, flower and fruit thinning and fruit bagging; 6, pest control: priority is given to the agricultural, physical and biological control, and chemical control is supplemented; 7, reaping and marketing timely. According to the purple heart pitaya planting and cultivating method, three-dimensional management is adopted into the planting of the purple heart pitaya, the production management is convenient, the taste of the purple heart pitaya is good, and the yield is high.

The invention belongs to the technical field of saline-alkali soil improvement and particularly relates to an improving agent and improving method for strongly saline-alkali soil quick fertilization. The improving agent is prepared from, by weight, 55-60 parts of flue gas desulfurization gypsum, 20-30 parts of magnetized fly ash, 30-40 parts of cellulose-acrylamide, 11-16 parts of humic acid, 5-9 parts of polyhydroxy phosphate ester, 20-25 parts of chitosan, 5-10 parts of calcium nitrate, 1-5 parts of N-29 methylenebis, 5-10 parts of pumice stone powder, 1-5 parts of magnesium sulfate, 1-3 parts of aluminum sulfate, 0.5-1 part of ferrous sulfate, 1-5 parts of stainless steel slag, 10-15 parts of poultry and livestock manure and 1-2 parts of biological bacterial fertilizer. The prepared improving agent is suitable for improvement of strongly saline-alkali soil, desalination is quick, improvement cost is low, and the use effect is remarkable.

The invention provides a method for developing ecological agriculture through resource utilization of crop straws and application thereof. The method is realized by the following steps: the crop straws are smashed during or after harvesting; proper amounts of livestock excrement, urea, ammonium sulfate and the like are added for mixed stacking and fermenting; edible fungus strains are inoculated; edible fungus are planted; after the edible fungus are harvested, the stacked organic wastes are mixed with a proper amount of livestock excrement, and are applied in farm lands as high-quality organic fertilizers. Grains and vegetables are planted without polluting environment, so that the air pollution due to the smashing of the crop straws is solved, the problem of reduced soil organic matters in the farm lands is solved, the soil fertility is improved, and the development of the ecological agriculture is promoted.

The invention discloses a coated controlled-release preparation for relieving soybean saline-alkali stress and a preparation method and application thereof. The preparation method of the coated controlled-release preparation comprises the following steps: preparing an organic fertilizer and a soil conditioner as nuclear materials; continuously adding a bonding agent; mixing and granulating; drying; wrapping with a controlled-release coating material. The prepared coated controlled-release preparation for relieving soybean saline-alkali stress is applied to saline and alkaline land for planting soybean, so that the utilization rates of the organic fertilizer and the soil conditioner can be increased, the surface oil layer of the saline and alkaline land keeps low salinity and high nutrition, stable growth of the soybean is promoted, the soybean yield is increased remarkably, an optimized management mode of sustainable utilization of saline-alkali soil resources is realized, a basis is laid for the management of saline and alkaline farmland, and peasant income is increased.

The invention discloses an aerobic and anaerobic integrated granule sludge reactor and a wastewater treatment method thereof, and belongs to the field of wastewater treatment. Aerobic granule sludge and anaerobic granule sludge are integrated into the same reactor, continuous flow operation of the granule sludge process is achieved, and the problem that the aerobic granule sludge is difficult to culture and prone to disintegration in the operation process is solved. In the wastewater treatment method, anaerobic granule sludge is added into the reactor in the start stage, aeration is carried out in the middle of the reactor, after a period of time, aerobic particles are formed in the upper portion of an aeration point, and anaerobic particles increased on the middle and lower portion in the operation process can enter an aerobic region on the upper portion and are gradually converted into aerobic particles. The concentration of dissolved oxygen in the aerobic region on the upper portion of the reactor is controlled to be 0.5-1.5 mg / L in the operation process, the pH value in the reactor is 7.8-8.0, and the reflux ratio is 50-200%. The device and method are capable of efficiently removing organic matter and nitrogen in sewage, and the device has the advantages of being small in occupied area, stable in operation, low in cost and the like.

The invention relates to the technical field of restoration of coastal wetlands, in particular to a restoration method of damaged plants in a coastal wetland. The restoration method comprises the following steps of S1, determination of a restoration area and habitat survey; S2, reshaping by pumping water; S3, shaping by water discharge; S4, soil ploughing in the restoration area; S5, soil laying;S6, plant cultivation. An underwater ecosystem is constructed, and the absorption, adsorption, sedimentation promotion and physiological metabolism activities of primary oxygen produced by photosynthesis of submerged vegetations and underwater forests achieve the purposes of effectively removing nitrogen, phosphorus and other nutrient pollutants in water and increasing dissolved oxygen in the water to purify the water; crop straw is used as a natural fertilizer, which not only avoids the situation that rural straw burning pollutes the environment, but also increases organic matter and nutritional ingredients in damaged soil, and is more environmentally friendly and also makes the cost low; the crop straw is buried in the damaged soil for fermentation rot, so that the soil is looser and softer, and the saltness per unit area is reduced, thereby being more conductive to planting.

Exhaust gas 2 from a coal power generator 4 may be used to provide a commercial soil additive. The exhaust gas 2 is fed to a growing cell 14 containing bio-mass material. After the bio-mass material matures, the bio-mass material is harvested to produce the commercial soil additive, which is preferably treated to produce mulch 18 and compost 20.

The invention provides a disease prevention plantation method for navel orange and belongs to the field of agricultural planting. The method comprises following steps: selecting soil which is suitable for the growth of navel orange and performing land preparing; selecting proper navel orange scion, stocks and interstock for grafting; after survival, regularly applying base fertilizer prepared from self-made organic fertilizer, nitrogenous fertilizer, phosphate fertilizer and potash fertilizer, wherein the self-made organic fertilizer is prepared from mixing and fermenting Chinese milk vetch, rice bran, tea seed cake, bean dregs, blue algae, marigold, derris, zeolite powder, chicken manure and decay accelerator; field management is carried out until fruit harvesting. The plantation method of the invention can increase the survival rate of navel orange grafting and the quality of products, save planting fertilizer and prevent disease and increase output; the method is suitable for large scale systematic plantation and can increase output and income for farmers.

The invention provides a plantation method for navel orange and belongs to the field of agricultural planting. The method comprises following steps: selecting soil which is suitable for the growth of navel orange and performing land preparing; selecting suitable navel orange seedlings and transplanting the seedlings to the field and then watering for field planting; before field planting, applying base fertilizer prepared from self-made organic fertilizer, nitrogenous fertilizer, phosphate fertilizer and potash fertilizer to planting pits, wherein self-made organic fertilizer is prepared by mixing and fermenting alfalfa, cassava residue, cottonseed cake, straws, water hyacinth, snowpoppy, tobacco leaf rod, pond mud, pig manure and decay accelerator; reasonably applying fertilizer according to the age of young trees; performing field management until fruit harvesting. The plantation method of the invention can increase the fruit set percentage, save fertilizer, increase output and prevent disease and increase nutrition value of the products; the method is suitable for large scale systematic plantation and can increase output and income for farmers.

The invention belongs to the technical field of agricultural planting and specifically relates to a pepper cultivation method capable of reducing soil-borne diseases. The pepper cultivation method comprises the following steps: (1) reconstructing a soil plough layer; (2) applying organic materials; (3) irrigating water and carrying out film mulching treatment; (4) carrying out land preparation andapplying base fertilizer; (5) carrying out field planting; (6) applying additional fertilizer. According to the pepper cultivation method involved in the invention, soil of a pepper planting land issubjected to plough layer reconstruction, and a lot of organic materials with the carbon / nitrogen ratio of (30 to 35) to 1 are applied; 5 d and 10 d after water irrigation and film mulching are carried out, water is irrigated at the periphery of a thin film respectively, so that a gap between the edge of the periphery of the thin film and the soil is sealed by water; the fertilizer is scientifically applied in a pepper cultivation process, and a plurality of types of potassium fertilizer are matched to apply, so that the incidence rate of four soil-borne diseases of peppers can be remarkably reduced, wherein the incidence rate of pepper bacterial wilt is averagely reduced by 46.07 percent, the incidence rate of pepper phytophthora blight is averagely reduced by 26.20 percent, the incidencerate of pepper root rot is averagely reduced by 32.45 percent and pepper root-knot nematode does not occur.

The invention discloses a high-yield environment-friendly method for applying a fertilizer to red and yellow soil land, which comprises the following steps: A. composting: carrying out heap fermentation on livestock and poultry manure collected from cultivation farms, killing pathogenic bacteria and parasites in the livestock and poultry manure, and measuring the dry matter content of the fermented livestock and poultry manure; B. land preparation: tilling and leveling the red and yellow soil by using a minitype tilling machine; C. fertilizer application: applying the fermented livestock and poultry manure to the tilled and leveled red and yellow soil land in a way of 2.3-4.5 tons of dry matters per hectare, and turning over the soil, so that the manure is mixed into the upper soil layer; D. sowing: directly sowing seeds or transplanting the needed crops, and watering; E. intertillage and weeding: intertilling in the crop growing season, and weeding in combination with intertillage; F. disease and pest control; and G. harvesting: harvesting when the crops become ripe. The method has the advantage of low cost, is easy in realization and simple and convenient in operation, is widely suitable for applying livestock and poultry manure to medium / low-yield red and yellow soil land, improves the soil quality and increases the soil nutrient content.

The invention discloses a preparing method of a pollution-free fertilizer special for macadamia. The preparing method comprises the following steps that firstly, a first mixed material is prepared with crop straw as the main raw material; secondly, waste cob bricks are taken and smashed and then mixed with fruit shell yeast, a second mixed material is obtained, the first mixed material and bentonite are mixed to obtain a third mixed material, and loess mud, river sand and molasses fermentation liquor are mixed to obtain a fourth mixed material; thirdly, the fourth mixed material, the third mixed material and the second mixed material are flatly laid in a cultivation trough from bottom to top in sequence, and green manure grass seeds are sown; fourthly, grass cutting, stirring and fermentation are carried out, and fermentation fertilizer is obtained; fifthly, the fermentation fertilizer is mixed with bamboo shoot peel and auxiliary materials, and the pollution-free fertilizer special for macadamia is obtained. The raw materials used in the method are environment-friendly substances in natural ecology, waste in life is recycled and turned into treasure, the cost of the raw materials is reduced, and the pollution-free fertilizer special for macadamia has the advantages of being nontoxic, free of pollution and nuisanceless.

The invention discloses a botanical organic compound fertilizer, which is characterized in that the fertilizer is made from the following raw materials through fermentation based on weight proportions: 45 to 50 portions of livestock and poultry manure, 15 to 20 portions of peat soil, 12 to 17 portions of straw, 5 to 10 portions of caragana, 8 to 12 portions of weathered coal, as well as 3 to 7 portions of zeolite. The botanical organic compound fertilizer of the invention has sufficient raw materials, low cost, short fertilizing time, simple preparation, as well as easy promotion and application. After application, the botanical organic compound fertilizer can improve soil organic matters, increase water-holding and fertilizer-keeping capacity of the soil, improve the environmental pollution caused by long-term application of fertilize, and promote the sound development of ecological agriculture.

The invention discloses a method for remediating soil by using thermal desorption and a microbial technology. The soil is remediated by utilizing a thermal desorption soil remediating system, and the method comprises the following steps: firstly, preheating contaminated soil by adopting a preheating device, then, heating the preheated contaminated soil by adopting a heating device to separate contaminants in the soil, and finally, recovering heat of the soil from which the contaminants are separated by adopting a heat recovery device; remediating the soil by utilizing the microbial technology; applying organic fertilizer to the soil treated by thermal desorption per mu, and plowing the organic fertilizer under the soil by a rotary cultivator; then, sprinkling the soil to keep soil humidity, and then, evenly spraying microbial soil remediating inoculant; and evenly spraying the microbial soil remediating inoculant once after two months to finish soil remediation after three months. According to the method disclosed by the invention, by adopting thermal desorption and the microbial technology, a breeding condition in favor of microbial strains is created by utilizing a physical and biological method, and the soil is remediated in manner of nature, return and equilibrium.

The present invention discloses a water-soluble amino acid fertilizer and a preparation method thereof. The fertilizer in an animal blood fermentation broth contains 8%-10% of amino acids, 1%-3% of iron and zinc salts, 3%-9% of nitrogen, 2%-6% of phosphorus and 1%-3% of potassium, by weight. The water-soluble amino acid fertilizer disclosed by the present invention is a green organic fertilizer, makes full use of animal blood, and turns waste into treasures; and application of the fertilizer can increase soil organic matter and soil fertility, and improve crop disease resistance, insect resistance and resilience. Field experiments show that the water-soluble amino acid fertilizer has good economic and market prospects.

The invention discloses a tobacco biomass charcoal based long-effect potassium fertilizer and a preparation method of the tobacco biomass charcoal based long-effect potassium fertilizer. The tobacco biomass charcoal based long-effect potassium fertilizer is prepared from the following raw materials: 25 to 35 parts of tobacco biomass charcoal, 35 to 45 parts of a silicon potassium calcium magnesium fertilizer, 10 to 20 parts of potassium chloride, 5 to 10 parts of potassium humate and 5 to 10 parts of a granulation binder and the balance of water, wherein the tobacco biomass charcoal is prepared by carrying out thermal cracking on waste tobaccos for 1.5h to 2.5h through a portable carbonization furnace under an anaerobic condition at 450 DEG C, and cooling. The tobacco biomass charcoal based long-effect potassium fertilizer has the effects and potentials of improving physicochemical characters and microorganism activity of soil and increasing the carbon sequestration potential of the soil, can be used for increasing the organic matters of the soil, the soil cation exchange capacity and the granular structure, and has the effects of preventing the soil from being hardened, improving hydrothermal conditions of the soil, effectively adjusting a soil structure and preventing the soil from degradation; a positive cycle of agricultural production is realized.

The invention provides a method for producing a disease and insect resisting bio-compound fertilizer special for squash vegetables and an application thereof. The disease and insect resisting bio-compound fertilizer special for squash vegetables is prepared by the following steps: drying ardealite, smashing into 200 to 400 meshes, drying excrements, mixing and fermenting the ardealite and the excrements, controlling the nutrition temperature in the range of 28 to 32 DEG C after sterilizing the culture medium, inoculating various beneficial microorganisms, cultivating respectively, after finishing cultivating, mixing the mixed microorganisms with the prepared fermented mixture in a weight ratio of 1:500 to 1500, adding water to regulate the moisture content in a range of 35 to 55%, stirring uniformly, placing for 3 to 5 days at room temperature, airing till the moisture content in a range of 20 to 30%, and then smashing in order to obtain the product. The product is mainly applied to planting the squash vegetables like hot pepper, cucumber, and the like.

The invention relates to soil conditioners and methods. A micro-powder soil conditioner is prepared from the following components (by weight): natural peat soil, humic acid, wormcast powder, amino acid, potash fertilizer, urea and microorganism compound zymophyte powder, wherein the humic acid is sulfonated lignite humic acid, and the sulfonated lignite humic acid is prepared by sulfonating lignite humic acid. The product disclosed by the invention has a very good fusion effect with soil, is used for improving soil acid, viscosity, saline-alkali soil and other obstacle factors and increasing the content of soil organic matters, so that the soil quality and the production capacity are improved, and the product has the effect of rapidly increasing the soil organic matters and fertility.

The invention discloses compound fertilizer for farmland soil improvement and a preparation process thereof. The compound fertilizer is prepared from the following components in parts by weight: 3-6 parts of a microbial compound inoculant, 6-10 parts of earthworm egg cocoons, 15-20 parts of cow dung, 5-7 parts of compost zymophyte, 20-30 parts of straw, 15-20 parts of mushroom residues, 20-25 parts of rotten figs, 15-20 parts of fresh durian shells, 20-25 parts of a sugar residue mixture, 18-25 parts of bentonite, 15-20 parts of diatomite, 8-12 parts of emulsified asphalt, 10-15 parts of distillers' grains, 5-7 parts of sulfur powder, 8-10 parts of ferrous sulfate and the balance of rice washing water. Earthworm egg cocoons are introduced into soil and can be rapidly hatched into earthworms after the fertilizer is put into use, formation of a soil aggregate structure is promoted, soil breathability is improved, and the soil fertility level is increased. The organic fertilizer improvesthe physical and chemical properties of the soil and enhances the fertilizer retention performance and buffer performance of the soil, the number and activity of soil microorganisms are increased, thesoil temperature is increased, the soil ion exchange rate is increased, and rice washing water is used as a solvent to promote crop growth.

The present invention relates to a comprehensive control method for tomato pythium rot. The comprehensive conrol method comprises the following steps of: 1, carrying out soil ecological management: (1) applying a Difulai greenhouse type fertilizer, with the use amount of 200-400ml per mu; (2) within one month before tomatoes become ripe, applying a traditional Chinese medicine trace fertilizer, with the use amount of 30-35g per mu; 2, carrying out agricultural control; 3, carrying out biological control; 4, carrying out biological prevention and treatment; 5, carrying out physical control: (1) cleaning plants with serious diseases and diseased residual bodies in time and intensively destroying the plants with serious diseases and diseased residual bodies; and 6, carrying out chemical control: (1) when finding diseased fruits, firstly picking the diseased fruits and then spraying pesticides; alternatively spraying and applying a 500-fold solution of 80% mancozeb wettable powder and a 500-fold solution of 58% metalaxyl mancozeb wettable powder; spraying once every 7 days; and continuously spraying for 3-4 times. By virtue of the comprehensive control method, measures including the soil ecological management, the agricultural control, the biological control, the biological prevention and treatment, the physical control, and the chemical control and the like are adopted, so that the mobility of the tomato pythium rot is greatly reduced, the effect is good, and the yield and quality of tomatoes are improved.