53results about How to "Promote crop growth" patented technology

The invention discloses a chemical fertilizer granula for preventing sugarcane moth borer. The chemical fertilizer granula contains novel nicotine type insecticide, crop nutritions and a carrier, the novel nicotine type insecticide is clothianidin or imidaclothiz, the crop nutritions are combined by one or more than one of a compound fertilizer, a medium trace element fertilizer and silicon fertilizer and the like, and the carrier is combined by one or more than one of kaolin, imvite, diatomite, clay powder, attapulgite, carclazyte, light calcium carbonate and talcum powder. The chemical fertilizer granula realizes multipurpose effect, achieves the purpose of killing insects such as sugarcane moth borers when crops are fertilized and has the advantages of high efficiency, safety and low toxicity.

The invention provides a method for preparing multifunctional biological organic fertilizer and the technical scheme of the invention comprises fermenting bacillus subtilis, bacillus megaterium and bacillus mucilagimosus individually. The fermented bacterial liquid is adsorbed by rice husk separately. Three adsorbed single microbial inoculum is blended and grinded according to the proportion of 1:0.8-1.2:1.5-2.5 to obtain the compound microbial inoculum. The hydrolytic slag which is obtained in the production procedure of gourment powder after treatment is charged by trace element raw material and 4%-7% compound microbial inoculum with relative to total weight to obtain the needed compound microbe fertilizer. The method is simple in production technique, which facilitates to do batch production.

A multi-resistant microbial fertilizer is prepared from jelly-like bacillus, Bacillus licheniformis, Jingyang streptomycete and trichoderma through determining the proper culture and fermenting conditions, slant culturing, Erlenmeyer flask culturing, fermenting and/or solid culturing, proportional mixing and adsorbing by carrier. Its application method is also disclosed.

The invention discloses a microbial soil conditioner and a preparation method thereof. The invention provides a microbial mixed inoculant, comprising bacillus polymyxa, bacillus licheniformis and bacillus subtilis as active components. The preparation of the microbial soil conditioner provided by the invention comprises the following steps: mixing sludge with auxiliary materials, then inoculating a sludge starter culture to ferment to obtain decomposed sludge, inoculating the microbial mixed inoculant to proceed with culturing to obtain the microbial soil conditioner, wherein the active components of the sludge starter culture comprise bacillus subtilis, bacillus stearothermophilus, aspergillus niger, thermophilic sporotrichum and Saccharomyces cerevisiae. The invention has important values for promoting the healthy development of agricultural and forestry production of China.

The invention discloses bacillus subtilis, bactericide, a preparing method of the bactericide and application of the bactericide. The bacillus subtilis is bacillus subtilis JQ-001 and is preserved in the common microorganism center of China microorganism strain preservation management committee, preservation time is November 9th, 2015, and the preservation register number is CGMCCNo.11632; the liquid bactericide or the solid bactericide can be prepared by means of seed activation, seed culture and fermentation culture. The invention further provides a preparing method of the bacillus subtilis, and application to preparation of medicine for preventing and treating rice blast and potato scab. The bactericide has high bioactivity and has the advantages of being short in production period and low in production cost; meanwhile, environment compatibility of the bactericide is good, the effects of preventing and treating rice blast and potato scab are remarkable, no hazardous effect is generated for people and livestock, and use is convenient.

The invention discloses a method for improving acid soil, and mainly aims to overcome the problems that the fertility of conventional acid soil is degraded and the acid soil is relatively high in acidity. The method for improving the acid soil comprise the following implementation modes: preparing biomass charcoal and mushroom residues of fine particle sizes from agriculture and forestry wastes; sufficiently and uniformly mixing the prepared biomass charcoal and mushroom residues with acid soil so as to obtain a soil mixture; performing biochemical culture on the soil mixture. According to the method for improving the acid soil, a soil improvement substance is prepared from the agriculture and forestry wastes, and with the combination of an edible mushroom production residue product, the properties of the acid soil can be improved; the soil improvement substance is simple in preparation process, simple to use, low in cost and remarkable in effect, has advantages of environmental-friendliness, low carbon, resource recycling and the like, provides a novel way for acid soil improvement, and has good social and economic benefits and popularization application values.

The invention relates to environment-friendly soil-improving liquid fertilizer and a preparing method thereof. The environment-friendly soil-improving liquid fertilizer is prepared by the following raw materials in part by weight: 15 to 25 parts of lignosulfonate, 10 to 20 parts of potassium humate, 10 to 20 parts of urea, 2 to 5 parts of microelements, 1 to 5 parts of sodium alginate and 70 to 100 parts of water, wherein lignosulfonate and potassium humate are dissolved in water and sufficiently and uniformly mixed and dissolved; 40 to 60wt% of nitric acid is used to adjust the pH value of the solution to be from 6.0 to 7.5; urea is added into the solution to be mixed and dissolved; the solution is heated to 50 to 70 degrees C and then added with the microelements to be mixed and dissolved; and sodium alginate is added into the cooled solution to be dissolved, so as to obtain the environment-friendly soil-improving liquid fertilizer. The environment-friendly soil-improving liquid fertilizer integrates the functions of growth promoting, stress resisting and active soil improving, comprehensively utilizes the waste, and finally realizes the comprehensive development of circular economy.

The invention provides a production method of amino acid bio-organic fertilization fertilizer, which adopts the technical scheme as follows: bacillus subtilis and bacillus mucilaginosus are respectively fermented to be produced and are adsorbed by rice hull powder and then mixed according to a proportion and crushed to form a compound microbe bacterial agent; and hydrolyzed dregs generated in the production process of amino acid are processed and then added to the compound microbe bacterial agent and inorganic fertilizer, and the compound microbe bacterial agent and the inorganic fertilizer are mixed and crushed to obtain the amino acid bio-organic fertilization fertilizer. The amino acid bio-organic fertilization fertilizer produced by the method has the advantages of bio-organic fertilizer, has good solvability and simple technology and is beneficial to large-scale production.

The invention discloses bacillus wettable powder containing brassinolide and a preparation method thereof. The bacillus wettable powder containing brassinolide is mainly prepared from brassinolide, a bacillus solution, nonyl phenol polyoxyethylene ether, ethanol, skim milk powder, methylcellulose, D425, sodium dodecyl benzene sulfonate and kieselguhr. The brassinolide is capable of improving the activity of plant based enzymes, improving the seed vigor, promoting early development, enhancing the photosynthetic efficiency, increasing the crop yield, improving the crop quality, improving the cold resistance, drought resistance, waterlogging resistance and saline-alkaline tolerance of crops, improving the stress tolerance, and alleviating pesticide phytotoxicity and chemical pollution phytotoxicity, and is capable of resisting hazards of multiple types of virus, bacteria and fungus and enhancing the crop disease resistance. The bacillus is capable of directly restraining or killing multiple types of plant diseases. The wettable powder is safe, environmentally friendly and efficient, is stable in production process, and can be widely applied to crops such as rice, flue-cured tobacco, corn, wheat, stawberries, watermelons, hot pepper, tomatoes and cucumbers.

The invention relates to a preparation method of a nutrient containing an active carbon enzyme and microbial coenobium. Fermentation raw materials and corresponding proportions refer to, by mass, 85%of spent mushroom compost of lentinus edodes, 10% of wheat bran and 5% of corn flour, after grinding of the fermentation raw materials, water is added so that the mass percentage of water contents ofthe fermentation raw materials can be 25-35%, and compound microbial inoculum is added at a mass ratio of 1:1000 to be uniformly mixed to obtain the nutrient containing the active carbon enzyme and microbial coenobium. The nutrient enables multiple microorganisms to overcome competitions during colonization process in a soil ecological environment with other microorganism coenobium to form dominant populations, enough populations are ensured to overcome the repulsion of soil habitual microorganisms including pathogenic bacteria so that the multiple microorganisms can keep colonizing near rootsand leaves of plants, secreting various enzymes and antibiotics, inducing plant disease resistance and the like, the advantages of being fast in deinsectization and bacteriostatic ability, stable inprevention and control effects of biological pesticides are achieved, and the purposes of complementing advantages, reducing dosage and enhancing prevention effects are achieved through compound and synergistic effects.

The invention discloses an organic plant fertilizer, which consists of the following raw materials in part by weight: 45 to 65 parts of cottonseed, 4 to 6 parts of bone meal, 8 to 12 parts of oil cake, 4 to 6 parts of charcoal, 8 to 12 parts of pine needle filaments, and 12 to 18 parts of wood flour. The finished product of the organic plant fertilizer is prepared by mixing, cooking, cooling, fermenting and drying. After being used, the organic plant fertilizer has the advantages of enhancing soil fertility, improving a soil structure, improving detoxification effect, purifying a soil environment, improving the biological activity of soil, stimulating the growth of plants, keeping and storing nutrients, reducing loss, improving the nutrient absorption of the plants, further improving bottom fertilizer efficiency, reducing soil fixation, improving the soil and changing nutrient availability when the plants are inoculated with production strains, increasing soil components, improving soil vigor, increasing organic nutrients for the growth and development of the plants, effectively adjusting the acidity or alkalinity of the soil, improving the soil structure, improving the buffer capacity of the soil, and effectively adjusting the acidity or alkalinity so as not to increase the acidity of the soil.

The invention discloses an efficient phosphorus-dissolving growth-promoting bacterium (Aspergillus niger) A6 screened from limy soil in northern China and provides a microbial agent and a bio-fertilizer preparation which are prepared from the strain A6. The microbial agent is capable of efficiently dissolving powdered rock phosphate, and the dissolving rate after 5 days reaches 80.4% and exceeds that of phosphorus-dissolving fungi strains reported at present. According to the A6 microbial agent, the validity that phosphorus is difficultly dissolved in soil is remarkably improved, and effective phosphorus in soil is increased by 8.13mu g/g-8.95mu g/g; compared with contrast, the phosphorus absorbing quantity of crops is increased by 82.01%; the corn yield is increased by 15.85%. The efficient phosphorus-dissolving growth-promoting bacterium is significant for the saving of phosphorus fertilizer resources, the sustainable yield increase of grains and the protection of farmland ecological environments.

The invention relates to a schizonepeta soilless cultivation method. The method comprises the steps of (1) soilless culture substrates preparation, (2) sowing and (3) watering and fertilization. The soilless culture substrates are composed of turfy soil, vermiculite and perlite, anaerobic fermentation is conducted on the turfy soil for 4-9 months, a 40% formaldehyde solution is used for disinfecting after fermentation, then fermented objects are covered respectively, the covered objects are uncovered after one week and tedded; the turfy soil, the vermiculite, and the perlite are mixed according to the volume ratio of 1:1:1 to prepare the soilless culture substrates. Different watering operations and fertilization operations are used in different growing periods. According to the different demands for water and nutrients in all the growth and development stages of schizonepeta, scientific and reasonable soilless cultivation is conducted on the schizonepeta, the demands for nutrients, temperatures, illumination and air of crops in the development process can be effectively controlled, the crops are made to be in the best growth state, the planting range can be expanded by soilless cultivation, crop growth is accelerated, yields is improved, and labor is saved.

The invention relates to a disease-resistant wood vinegar water-soluble fertilizer as well as a preparation method and application thereof. The disease-resistant wood vinegar water-soluble fertilizercontains the following raw materials in parts by weight: 50-80 parts of wood vinegar, 30-40 parts of mashed garlic, 45-55 parts of crofton weed, 50-60 parts of peanut shell, 5-10 parts of potassium fulvate, 5-20 parts of potassium dihydrogen phosphate, 5-20 parts of ammonium dihydrogen phosphate, 1-10 parts of magnesium sulfate, 1-10 parts of ferrous sulfate, 1-5 parts of boric acid, 1-2 parts ofammonium molybdate, 1-3 parts of manganese sulfate, 1-3 parts of zinc sulfate, 0.5-1 part of copper sulfate, 5-15 parts of citric acid, 500-800 parts of water and 0.3 part of a surfactant. The water-soluble fertilizer is rich in nutrients, the nutrients do not mutually have antagonistic action, the balanced supplementation of various nutrients of crops can be realized, the water-soluble fertilizerdoes not precipitate, is capable of promoting the balanced absorption of plants to the nutrients and has excellent antibacterial and sterilizing effects, and the occurrence rates of plant diseases and insect pests are low; and the operation steps during the preparation are simple and reasonable in design, various components are easily available, the cost is low, and the maximum utilization of theresources is realized.

The invented LU 1000 typed high voltage sodium lamp possesses lamp cap and lamp bulb. Inert gases are filled into electric arc tube inside lamp bulb. Electrodes are setup at two ends of the electric arc tube. Maximum diameter of lamp bulb, which is olivary glass bulb in air tightness, is not larger than 78 mm, and maximum length of lamp bulb is not longer than 383mm. rigid rack inside lamp bulb is for fixing the electric arc tube, which is made from material of semitransparent polycrystal alumina ceramic. The invented LU 1000 typed sodium lamp is operated under high voltage belonging to green illuminance product. The invented product possessing features of high light efficiency, high luminous flux and long service life can apply to illumination of large area such as square and road in super wide. Illuminating farm crops promotes growth, shortens vegetative cycle as well as compacts petals and lengthens time of opening.

The invention discloses a manufacture method of a chitin biological fertilizer with a slow-release function. The manufacture method is characterized by comprising the following steps in sequence: modifying oyster shells by chitosan under the assistance of the microwave time and again, thus obtaining a modified oyster shell powder adsorbent in which chitosan and chitosan oligosaccharide are adsorbed and embedded and chitin is wrapped; compounding the modified oyster shell powder adsorbent with chitin; and compounding the product with a water swelling and conservation agent so as to obtain the slow-release type chitin biological fertilizer which contains the oyster shell powder, chitosan (chitosan oligosaccharide), chitin, humic acid, polyacrylamide, organic acid chelate titanium and urea peroxide, wherein the water swelling and conservation agent comprises humic acid, polyacrylamide and an initiator.

The invention discloses a slow release composite fertilizer for high-tower granulation and a preparation method thereof and belongs to the technical field of fertilizer. The fertilizer is prepared from, by weight, 100-150 parts of urea, 80-100 parts of monoammonium phosphate, 60-80 parts of potassium chloride, 20-40 parts of celestite powder, 10-20 parts of attapulgite powder, 10-20 parts of kieselguhr, 5-15 parts of a medium trace element mixture, 3-5 parts of a synergist and 5-10 parts of an outer-layer coating agent; the outer-layer coating agent is prepared in the mode that polyvinyl alcohol and polyvinylpyrrolidone are subjected to copolymerization, and then biomass charcoal is added. According to the slow release composite fertilizer, nanosilicon dioxide is added as the synergist, and through cooperation of the synergist and a coating material, an obvious slow release effect of the fertilizer is achieved. The prepared fertilizer is safe, environmentally friendly, has an obvious fertilizer efficiency, capable of achieving high tower granulation, low in cost and high in efficiency and has high market application potential.

The invention discloses a preparing method of organic fertilizer special for dragon fruit weeding, and belongs to the technical field of agricultural organic fertilizer preparation. The organic fertilizer special for dragon fruit weeding is prepared from, by weight, 100-180 parts of chicken manure, 50-80 parts of rice husk, 8-10 parts of tea bran, 2-5 parts of superphosphate, 1-3 parts of biological bacteria and 2-4 parts of dichlorvos. The organic fertilizer special for dragon fruit weeding is prepared through the steps of smashing, primary fermentation, stirring and re-fermentation. The fertilizer can inhibit weed growth, protein, cellulose, amino acid and other nutrient substances in the chicken manure and the tea bran are effectively decomposed into small molecules through composting and fermenting of a microorganism strain, the small molecules are easier for crops to absorb, and the yield is increased.

The invention relates to a four-in-one total-nutrient compound microbial fertilizer. Every 1000 kg of the four-in-one total-nutrient compound microbial fertilizer comprises the following components: 90-110 kg of a liquid microbial agent, 220-250 kg of urea, 250-350 kg of potassium fulvate, 90-120 kg of monoammonium phosphate, 150-200 kg of potassium sulfate, 1-2 kg of a medium trace element chelating agent and the balance of a saccharifying enzyme liquid. The four-in-one total-nutrient compound microbial fertilizer contains macroelements such as nitrogen, phosphorus, potassium and the like, also contains organic substances, microbial metabolites, fulvic acid and medium trace elements such as calcium, magnesium, sulfur, boron, zinc, manganese, copper, molybdenum, iron and the like requiredby commercial crops, and is suitable for various crops.

The invention discloses a plant growth accelerator, relates to an additive and belongs to the technical field of fertilizer. The plant growth accelerator is characterized by comprising the following bulk drugs by weight: 3.8-4.2% of ferrous sulfate, 7.1-7.6% of copper sulfate, 3.2-3.5% of zinc sulfate, 0.0018-0.0022% of iodized salt, 0.0031-0.0036% of selenium salt, 0.013-0.016% of cobalt salt, 0.16-0.18% of manganese sulfate, 0.55-0.65% magnesium sulfate, 3-5% of lysine, 2-3% of methionine, 8-10% of dried hawthorn, 20-30% of humic acid and 48-56% of calcium carbonate. The invention has the beneficial effects that the growth accelerator is a green fertilizer, enhances disease resistance of crops, improves quality of crops, reduces carcinogenesis of crops to human body, especially reduces nitrite content of vegetables; therefore, the plant growth accelerator is an ideal fertilizer for green food.

The invention discloses a method for preparing an agricultural enzyme from kitchen waste, the prepared agricultural enzyme and application of the agricultural enzyme. The preparation method comprises the following steps: collecting the kitchen waste, crushing, desalting and reducing lipid, adding brown sugar and ferment powder in proportion, sealing, standing and fermenting, regularly stirring, and filtering. The method has the characteristic of resource utilization of the kitchen waste, and the prepared agricultural enzyme and the fermented residue organic fertilizer are used for field soil improvement and crop weight gaining. The method can effectively solve the problem that kitchen waste is difficult to treat, reduce environmental risks, save pesticide and chemical fertilizer input, reduce production cost, increase the yield of agricultural products and improve the quality of the agricultural products. The method has remarkable ecological benefits, economic benefits and social benefits, is beneficial to agricultural sustainable development and has a wide industrial prospect.

The invention discloses an ecological organic fertilizer and a preparation method thereof. The ecological organic fertilizer is prepared from the following raw materials in parts by weight: 30-32 parts of humus soil, 28-30 parts of attapulgite, 26-28 parts of tree leaf powder, 28-30 parts of pomelo peel, 20-24 parts of bean pulp, 22-28 parts of cocoanut shell, 18-20 parts of spent brewer's grain, 10-12 parts of fructus momordicae, 16-20 parts of manioc waste, 28-30 parts of kaolin, 20-22 parts of gralic, 16-20 parts of belladonna, 20-22 parts of evergreen, 22-24 parts of Artemisia annua and 16-22 parts of Chinaberry seed. The ecological organic fertilizer can improve the soil, promote the plant growth and enhance the crop yield.

The present invention discloses a high-efficiency and high-yield planting method for selenium-enriched cherry tomatoes. The high-efficiency and high-yield planting method comprises seed selection, seedling substrate, seeding, high-temperature shed stuffing, field planting, pollination and harvesting. Effective microorganisms (EM) comprise seven beneficial microorganisms of bacillus, acetic bacteria, bifidobacterium, lactobacillus, yeasts, photosynthetic bacteria, bifidobacterium bifutum, actinomycetes, bacillus and rhizobium, synthesize various physiologically active substances such as amino acids, sugars, vitamins, etc., promote crop growth, enhance plant metabolism functions, improve photosynthesis, promote seed germination, promote early flowering and more fruit bearing and bring forward maturity. Therefore, the application of a brown sugar fermented EM fertilizer can increase sugar content of the cherry tomatoes, thus improves mouthfeel, increases yield and disease resistance of the cherry tomatoes, at the same time, improves selenium content of the cherry tomatoes and improves economic value of the product.

The invention relates to the field of alkaline soil treatment, in particular to a green environment-friendly curdlan slow release fertilizer and a preparation method thereof. The green environment-friendly curdlan slow release fertilizer is prepared from curdlan, nutrient elements such as nitrogen, phosphorus and potassium, seaweed extracts, polyglutamic acid, urease inhibitors and nitrification inhibitors by scientific proportioning. The preparation method includes the steps: sequentially adding the seaweed extracts, the polyglutamic acid, the urease inhibitors (sodium phosphate and hydroxamic acid salt) and the nitrification inhibitors (CP, DCD and DMPP) into water in proportion; adding the curdlan and the nutrient elements such as nitrogen, phosphorus and potassium, continuously and uniformly stirring the materials and increasing temperature to reach 85 DEG C; cooling the materials and then chopping the materials into particles with the diameters of about 0.5cm, and drying the materials at the temperature of 90 DEG C to obtain finished products. The curdlan is introduced into slow release fertilizer production and application, the green environment-friendly curdlan slow releasefertilizer is developed by the aid of colorless and odorless properties and irreversible solid formation of the curdlan after heating and by integrating seaweed, the polyglutamic acid and various stabilizing additives, the process is simple, fertilizer effects are comprehensive and lasting, nutrient loss can be remarkably reduced by the prepared slow release fertilizer, and the use ratio of the slow release fertilizer is increased.

A monitoring and trap-killing technology for bradysia odoriphaga takes sugar-acetic acid-ethanol as a trapping test solution, a newly prepared sugar-acetic acid-ethanol is added into an open basin in an arch shed, an additive is added, and a standard trapping basin is made and placed in a field of leeks. On the basis that the cost is not increased, the new technology can improve the monitoring and trap-killing effect of bradysia odoriphaga, is suitable for monitoring the pest occurrence rule by a grassroots plant protection department, and is particularly suitable for controlling pests by grassroots farmers. The sugar-acetic acid-ethanol used in the technology is non-toxic and harmless and has a good promotion effect on growth of plant; and a method adopted by the technology is a more accurate test method for monitoring pest population dynamics and performing trap-killing control.

The invention relates to a hollow drainage field ridge with a field ridge sluice gate. The drainage field ridge on the side wall of a field ridge is built of brick stone, has sufficient drainage fall, can enable a tail section to flow into a branch canal or flow into a river below the transverse field ridge and is respectively arranged beside crossed field angles; and a sunk pit and a cover plate in the vicinity range outside the sluice gate at the tail end at the intersection of the field ridge with the sluice gate. The drainage field ridge has the advantages of rapidly draining irrigation water, stormwater and fierce water, reducing flood discharge pressure of an irrigation ditch, preventing crops from being drown, reducing the loss of nutrients in soil, being conductive to air permeation of the soil and growth of the crops, resisting stormwater erosion, controlling weeds on the border of a field, dual purposes as a drainage channel and an aisle ridge, preventing affecting serial irrigation operation of different pieces of the field, avoiding field immersion disputes and creating high-yield conditions for the crops; since soil is replaced with a bag sealed ointment-like plug body, water can be blocked without excavating a road, the water-blocking soil can be prevented from block a water channel, the plug body can automatically effectively tightly plug the sluice gate, thereby realizing rapid, labor-saving, time-saving and effort-saving plugging and removing; in addition, the plug body is stored on site and can be use at any time; and a concealed pipeline of a power grid underground is buried at the outer end of the wall of the ridge.

The present invention provides a multiple compound microbial liquid fertilizer, a preparation method and applications thereof, and belongs to agricultural high-tech production technology. According to the present invention, the multiple compound microbial liquid fertilizer is prepared from an amino acid liquid, urea, molasses, dipotassium hydrogen phosphate, and Bacillus amyloliquefaciens SQR-9 having the preservation number of CGMCC NO.5808 according to a certain ratio, the total nutrient (including the total nitrogen (TN), the total phosphorus (P2O5) and the total potassium (K2O)) is 100%, and the number of functional bacteria is more than or equal to 5*10<8> CFU/mL after storage for 3 months; and the novel fertilizer integrates the rapid effect of the chemical fertilizer, the growth effect of the organic fertilizer, and the synergistic function of the biological fertilizer, further has advantages of good growth promoting effect, low production cost and convenient application, and can be used for grain crops, vegetables, and the like.

The invention belongs to the technical field of forestry propagation, and discloses a Japanese maple propagating and transplanting growth regulator and a Japanese maple propagating and planting method. The Japanese maple propagating and transplanting growth regulator is prepared from indolebutyric acid, naphthylacetic acid, iron phosphate, zinc sulfate, potassium sulfate, ammonium nitrate and potassium stearate. Large-scale planting can be performed only by rapidly dipping cutting slips into the growth regulator, and the growth regulator is particularly suitable for a park, municipal administration, a road and the landscape industry. The bark can be nourished, leaf yellowing, leaf spots and powdery mildew are prevented and controlled, the cuttage survival rate is high, and the amount of cuttage is large in the same area; the problems that rooting is not uniform or stable, the number of roots is small, root extruding and root healing are achieved, and the amount of healing tissue is large are solved.

The invention discloses a method and a system for producing an anaerobic biogas slurry concentrated fertilizer. Sewage is filtered by a grillage machine, then is collected into a water collecting tank, and is pumped into a solid-liquid separator, the quality and quantity of treated sewage are balanced and adjusted in an adjusting tank, then the sewage enters a CSTR device and is subjected to anaerobic fermentation, generated biogas is recycled, generated biogas slurry is discharged into a sediment pool and precipitates, the settled biogas slurry is pumped back to the CSTR device through a sludge reflux pump for circular treatment, and sludge accumulated in the sediment pool and an MBR device is periodically discharged into a sludge biogas residue pool and is subjected to squeezing composting; a biogas slurry penetrating fluid separated by the MBR device is concentrated by a DTRO membrane device, and a clear fluid separated from the anaerobic biogas slurry by the DTRO membrane device iscollected into a second water production tank and is discharged after reaching the standard through detection; and trace elements, other nutritional ingredients and functional ingredients are added into the separated concentrated solution to prepare the liquid fertilizer, and the liquid fertilizer is sub-packaged. The problems of high biogas slurry yield, high treatment cost, difficult storage and transportation, low nutrient content and the like in the traditional anaerobic engineering are solved, and the anaerobic biogas slurry is better recycled.

The invention relates o a preparation method of a graft copolymer crop nutrient solution containing chitosan oligosaccharide and tryptophan. The preparation method comprises following steps: chitosan is subjected to enzymatic hydrolysis with amylase under acidic conditions, appropriate amounts of tryptophan and a initiator are added into an obtained enzymatic hydrolysate, reaction is carried out for 2 to 3h at a reaction temperature controlled to be 60 to 80 DEG C, an obtained reaction liquid is subjected to nanofiltration so as to obtain a concentrate, the concentrate is subjected to nanofiltration so as to obtain a dialysate, the dialysate is mixed with other nutrient components so as to obtain a finished product via filling. The obtained finished product is diluted with water of 100 to 500 volume times, and an obtained diluted solution is capable of promoting the growth of crop root systems obviously, and increasing crop yield.