129results about How to "Improve soil fertility" patented technology

A drought-resistant cultivation method for fruit tree includes such steps as choosing the drought-resistant variety and stock, reasonable close planting, pruning, applying fertilizer, frequently deep ploughing, building terraced fields and scale pits, covering film, planting grass, water-saving irrigation and applying hydroscopic agent and vaporation resistant agent.

The invention discloses a cultivation method of organic selenium-enriched rice. The cultivation method comprises the following steps: a. selecting soil of which the selenium content is above 0.2mg/kg; b. planting astragalus smicus before rice planting, and taking the astragalus smicus as the base fertilizer for planting afterculture rice; and c. selecting good-quality rice variety, and carrying out cultivation management with an organic planting normative method to produce the organic selenium-enriched rice. The production of the organic selenium-enriched rice according to the above technical scheme can increase soil fertility and ensure that rice products reach the selenium-enriched standard, thereby guaranteeing environmental friendliness and safety of the rice products. When the method is applied in different varieties of rice and different soils of different selenium containing levels, the selenium content of rice is obviously improved. Detection proves that the selenium content of rice cultivated with the method is improved by above 100%.

The invention discloses a soil conditioner with a disease and insect damage prevention function and a preparation method thereof. Artemisia apiacea or artemisia apiacea residues, tobacco or tobacco residues, excrement of livestock or edible mushroom dregs and other organic matter and glucose, yeast extract, peptone, microelements and other carbon sources, nitrogen sources, mineral substances and acid-base conditioning agents needed for microorganism growth serve as raw materials, and special beneficial microorganism strains are screened as fermentation strains; after microbial fermentation through the modern biological fermentation engineering technology, the soil conditioner containing artemisia apiacea and tobacco active ingredients, active beneficial microorganisms and metabolites thereof, the organic matter fermented through microorganisms, the carbon sources, the nitrogen sources, the organic microelements and other active ingredients and having the crop disease and insect damage prevention function is obtained.

The invention provides a sludge-derived soil remediation agent as well as a preparation method and application thereof in sludge digestion. According to the adopted technical scheme, pretreatment is carried out on urban sewage and sludge, and the sludge is treated by means of twice fermentation. Tests prove that after the sludge remediation agent is used for 20 days, the proportional effective removal rate of various pollutants in soil reaches 95% or more and is in line with national standards. Furthermore, a sulfuric acid substance can acidify the hardened saline-alkali soil and is also good organic fertilizer, thus beneficial to reduction of the use of chemical reagents and chemical fertilizer in agricultural production, and putting an end to pollution and secondary pollution from the source.

The invention provides a harmless treatment process of kitchen wastes, belonging to the technical field of a biomass energy source. A process flow is simply described as the steps of: collecting and transporting, pre-treating, carrying out anaerobic fermentation, separating marsh gas, biogas slurry and biogas residues, and utilizing products. The collected and transported kitchen wastes are sorted through a pre-treatment means; the kitchen wastes are divided into six types of substances including oil, plastic, metal, glass, sediment and anaerobic fermentation raw materials by a heating unit, a solid-liquid separation unit, an oil-water separation unit, a dehydration unit, a crushing unit and a slurry making unit, wherein the oil enters a biodiesel manufacturing unit; the plastic, the metal and the glass can be recycled and reused; sandy soil and stones are filled in the ground; the anaerobic fermentation raw materials are subjected to biological degradation through an anaerobic fermentation system to form the marsh gas, the biogas slurry and the biogas residues; and after the separation, the next step of process is carried out to respectively manufacture natural gas, a spiral seaweed culture solution and a particle organic fertilizer.

The invention belongs to a poultry farming technology and relates to an ecological complementary chicken grazing method in an alpine tea garden. The alpine ecological tea garden is taken as a grazing place, naked neck hybrid chickens are stocked in areas in turn, the chickens are stocked in the morning and collected at night, the chickens and tea can realize ecological complementation, the chickens are used for weeding, killing insects and fertilizing land, and the tea and the chickens can realize the ecological complementation, thus manpower and physical resources for growing and raising are saved, cost is reduced, organic ecological foods can be produced, and the ecological complementary chicken grazing method is of a more ideal technology which is suitable for mountain areas.

The invention discloses a method for preparing composite microbial fertilizer by fertilizing silkworm excrement. The method comprises the following steps: 1, exposing the stacked silkworm excrement under the sun, and sterilizing the stacked silkworm excrement for standby application; 2, fermenting and culturing bacillus subtilis, bacillus mucilaginosus, bacillus thermoamylovorans, azotobacter chroococcum and streptomyces microflavus in respective sterilized culture medium under respective suitable conditions for 12 hours; 3, inoculating the five fermented cultured strains into a silkworm excrement culture medium, covering the silkworm culture medium by utilizing a film, and stacking and fermenting for 10 to 15 hours; 4, naturally cooling the fermented silkworm excrement to the ambient temperature, spreading the fertilizer compost, and naturally drying the fertilizer compost to obtain the composite microbial fertilizer. The composite microbial fertilizer is rich in microbial flora beneficial to the soil and crop nutritional substances and capable of improving the soil fertility, improving the soil structure and physical characters and improving the yield and quality of crops.

The invention relates to a breeding method for beautiful millettia root, and belongs to the field of agricultural breeding. The method specifically comprises the following steps: firstly, selecting a land suitable for growth of beautiful millettia root, applying fertilizer made by mixing self-made farmyard manure, tea seed bran, and quick lime in certain proportion, ploughing and bedding, wherein the self-made farmyard manure is made by mixed culture fermentation with beautiful millettia root deadwood, rice straws, sunflower stalks, peanut shells, animal bone meal, and pig, cow, and sheep manure, night soil as raw materials; then, selecting full beautiful millettia root seeds, after immersion disinfection by a disinfectant, mixing and dressing seeds with certain amount of a seed-dressing agent, and sowing; after that, controlling temperature and humidity of growing environment, spraying nutrient solution at fixed period, and culturing until seedlings emerge. The breeding method for beautiful millettia root is improvement on a conventional breeding method, and the method is simple in operation, low in production cost, and is scientific and rational, and seed germination speed is fast, and survival rate of seeds is high. The method is suitable to be used for large scale systematic breeding, and is good in practicality.

The invention relates to a humic acid composite fertilizer, which is prepared from 20 to 30 parts of humic acid, 10 to 20 parts of urea phosphate, 15 to 25 parts of ammonium polyphosphate, 5 to 15 parts of magnesium ammonium phosphate, 0.1 to 3 parts of trace elements, 15 to 25 parts of urea, 3 to 10 parts of monoammonium phosphate and 18 to 30 parts of potassium chloride. A preparation method of the humic acid composite fertilizer comprises the following steps of synthesizing the phosphoric acid and the urea for preparing the urea phosphate; then, synthesizing the prepared urea phosphate and the urea to prepare the ammonium polyphosphate; then, fusing the urea according to the weight parts of the ingredients; after the addition of the potassium chloride, adding the ammonium polyphosphate, urea phosphate and trace elements into a mixed groove to stir; then, adding the monoammonium phosphate and magnesium oxide; performing stirring; finally, adding the humic acid; uniformly mixing the materials for granulation. The prepared humic acid composite fertilizer has the advantages that the nutrients can be gradually released according to the soil condition; the requirements of the crops at different growth stages can be met; the soil structure can be effectively improved; the effects of nitrogen control, phosphorus stabilization and potassium retaining can be achievedt; the crop resistance can be improved; the crop quality is improved; the yield is increased.

The invention provides a planting method of selenium-enriched paddy and belongs to the field of agricultural planting. The planting method specifically includes following steps: selecting land suitable for paddy to grow, preparing soil in the land, and applying base fertilizer prepared from self-made organic fertilizer, phosphatic fertilizer and potassium into soil, wherein the self-made organic fertilizer is prepared by mixing and fermenting paddy stalk, coconut shell, kelp, maple leaf, bagasse, tea seed cake, buffalo manure, sheep manure, human manure and urine and rotting acceleration agent; putting seeds after going through selenium-enriched treatment into a seedling raising tray for seedling raising, and transplanting seedlings into the land 25-30 days later; regulating fertilizing and management at different growing stages of the paddy after transplanting till harvesting. By the planting method, survival rate of the paddy can be increased, fertilizer can be saved, yield can be increased, content of selenium element in paddy rice can be increased, and product nutrient value can be increased; the planting method is suitable for large-scale systematic planting and can increase yield and incoming of growers.

The invention belongs to the field of microbial fertilizers, and particularly relates to a rice specific composite microbial fertilizer, a preparation method and an application thereof. The rice composite microbial fertilizer is prepared from the following raw materials: 25-40 parts of an organic fertilizer, 5-10 parts of a nitrogen fertilizer, 4-8 parts of a phosphate fertilizer, 3-6 parts of a potassium fertilizer, 1-5 parts of trace elements, 12-35 parts of a composite microbial fertilizer inocula, and 3-10 parts of compound microbial pesticide inocula. The method adopts a microbial fertilizer technology and a microbial pesticide technology, the rice compound microbial fertilizer is prepared by a high-efficiency preparation process, the fertilizer is uniformly applied in the rice fieldbefore the rice seedling transplanting, the waterflooding treatment is carried out for 1 to 4 weeks, the soil fertility can be effectively improved, the use of inorganic fertilizers is reduced, and the soil environment of rice fields is improved, at the same time, the fertilizer can improve plant growth rate and quality, enhances rice resistance, reduces the occurrence of rice diseases, and increases yield increase and income increase.

The invention discloses a method for producing a soil conditioning material with an ecological restoration function for degraded agricultural land. The method comprises the following steps of: (1) crushing straw materials and mixing with livestock and poultry manures to prepare a material A1; (2) pretreating peat, coal slime, charcoal and lignite to form granules, and mixing according to a certain proportion to prepare a material A2; (3) uniformly mixing the material A1 and the material A2 according to the proportion; (4) dissolving a phosphorus chemical waste material, namely phosphogypsum in water at the temperature of more than 80 DEG C, and rapidly adding into the mixture of the material A1 and the material A2 according to a proportion of 3 to 12 weight percent; (5) performing sodium treatment on calcium bentonite, and adding into the mixture; and (6) adding energy elements necessary for the growth and breeding of microorganisms into the mixture, adjusting proper carbon nitrogen ratio and carbon phosphorus ratio, adjusting a pH value and humidity, and fermenting. By the soil conditioning material produced by the method, soil can be fully restored, the using amount of chemical fertilizers, pesticides and mulching films is reduced, and the quality and the quantity of the products of crops are improved.

A regulating method aims at the physical structure of a high-yield soil for summer corns, and belongs to the technical field of agricultural production. The regulating method of the invention is as follows: (1) deep ploughing (loose) before sowing: before the seeding of the previous crops before the summer corns, the soil is deeply ploughed (loose), the tilth is 30 to 35cm, the unit weight of a soil horizon of 0 to 20cm is 1.2 to 1.3g/cm3 by deep ploughing, the unit weight of the soil horizon of 20 to 40cm is 1.3 to 1.4g/cm3, and 15 kilograms of urea are fertilized per mu; and (2) ridging after sowing: before the seeding of the corns, wide row and narrow row seeding is required to be carried out, the space between the wide rows is 70 to 80cm, the space between the narrow rows is 40 to 50cm, during the jointing stage of the corns, cultivation, banking and ridging are carried out, ditches are opened in the wide rows of the corns, the narrow rows are banked and ridged, the ridge height is 15 to 20cm, and the ridge face width is 50 to 60cm. The invention can obviously reduce the unit weight of the no-tillage summer corn soil, increase the soil porosity, improve the physical behavior of the soil, increase the biological activity of the soil and enhance the biological fertility, facilitate the growing and development of the root system of the corn and increases the activity of the root system, and obviously improve the crop production and the benefits.

The invention relates to the technical field of paddy rice cultivation, and specifically relates to an environment-friendly high-yield paddy rice cultivation method. The method comprises the following steps of: step S1, seedling raising, step S2, ditching, step S3, field steeping, step S4, transplanting, step S5, fish fry stocking, step 6, top-dressing, step 7, field management and step 8, harvesting. Further, the used organic fertilizer comprises, by weight, 50-60 parts of duck manure, 10-20 parts of pig manure, 10-20 parts of pond sludge fertilizer, and 10-20 parts of humic acid. The adopted fish fries are grass carp fries, crucian carp fries, spotted silver carp fries, red-face carp fries and Taiwan loach fries. The method can be widely applied. With the paddy rice-fish cultivation manner, space is fully utilized, and yield is improved. The natural farmyard organic fertilizer is adopted, such that the paddy rice and fish are both green and pollution-free products.

The present invention discloses a construction method recovering the vegetation on the desertification land, which is firstly to make the stalks into a hay band that is immersed in the trash restrain solution to use and secondly to mix the stalk powder, the stable manure, the spirulina, the mutli-hole layered silicate sand-controlling novel material and the plant seeds to be a stalk mixture containing the plant seeds. When in construction, a series of furrows are dug on the desertification land, the prepared hay band is arranged inside the furrows, and then the stalk mixture containing the plant seeds is scattered in the furrows, and finally watering and soil covering are ok. The method is resulted in that the desertification land can consolidate the water and the fertilizer, can be rich and can improve the fertility of the soil, which can provide a favorable supporting condition for the sprouting of the plant seeds and the later growth of the plants.

The method discloses a method for preparing super absorbent resin containing covalent nitrogen by using potato starch as the raw material, which comprises the following main processes: carrying out neutralization reaction between a sodium hydroxide solution and acrylic acid from which polymerization inhibitor is removed under the cooling of ice-water bath; preparing acrylamide into a solution; mixing potato starch with de-ionized water and heating the mixture for pasting; mixing the acrylic acid and the sodium salt solution thereof with the pasted potato starch and the acrylamide solution; adding persulfate, and stirring the mixture under the protection of nitrogen; heating the mixture by water bath to rise the temperature so as to ensure that the potato starch, the acrylamide, the acrylicacid and the sodium salt thereof generate graft copolymerization reaction under the protection of nitrogen; keeping the temperature for 1-2 hours in boiling water bath; baking the products in a baking oven to keep constant weight; and drying the baked products to obtain the super absorbent resin containing covalent nitrogen. Compared with other products on the market, the water absorption of thesuper absorbent resin is multiplied and the super absorbent resin contains nitrogen nutrition elements. The super absorbent resin has great effect on the water conservation, the desert control, the plant growth promotion and the like of soil in dry regions.

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 a method for judging a carbon source factor capable of improving activity of soil microorganisms based on a Biolog micro-plate and a microcalorimetric method. The method comprises the following steps: collecting soil samples which are subjected to different fertilization treatments (no fertilizing, fertilizing inorganic fertilizers and fertilizing organic fertilizers), and performing a Biolog Eco micro-plate experiment; performing main component analysis on average absorbance value (AWCD) of Biolog, and distinguishing the carbon source factor causing differentiation; performing a microcalorimetric experiment, and distinguishing effects of different fertilization treatments on thermal metabolic activity of soil microorganisms; respectively adding the carbon source causing the differentiation into unfertilized contrast group soil, and researching influence of different carbon sources on the thermal metabolic activity of the soil microorganisms, so as to judge the carbon source factor capable of improving activity of the soil microorganisms.

The invention discloses a tea tree pest control method. The tea tree pest control method includes the following steps: (1) planting Cinnamomum camphora around a tea garden and on roads of the tea garden, and planting Lolium perenne among tea tree lines; (2) killing young pests, performing fertilizing, adding smashed cake powder into a biological insecticide to prepare poison baits, digging furrows, putting the poison baits to the furrows, and killing grubs; (3) trapping adults, namely, preparing trapping cores, embedding the trapping cores in hollow grooves of yellow pest boards to form trapping devices to trap the adults; and (4) clearing leaves with diseases in the garden in winter. The beneficial effects of the invention are that the soil fertility is improved, the healthy and strong tree vigor can be enhanced, and the disease resistance of the tea trees can be improved; biological control can greatly reduce farm chemicals, the population density of various pests can be effectively controlled, and the quality of tea can be improved.

The invention provides a tissue-culture rapid propagating method for wild bletilla striata and relates to the technical field of plant culture propagation. The tissue-culture rapid propagating method for the wild bletilla striata, provided by the invention, comprises the following steps: (1) seed culture stage; (2) plow-land transplanting stage, wherein the seed culture stage comprises the steps of 1) explant disinfection, 2) culture medium preparation, 3) sowing, 4) culture room culture and 5) greenhouse seedling hardening; the plow-land transplanting stage comprises the steps of 1) land preparation, 2) sowing, 3) fertilizer application management and 4) disease and insect pest control. According to the tissue-culture rapid propagating method for the wild bletilla striata, provided by the invention, strict check is carried out from seed culture to plow-land-transplanted cultivation, and all the steps are combined tightly and interact, so that the survival rate of the wild bletilla striata is increased, and the method is applicable to large-scale planting.

The invention relates to a method for preparing a potassium mineral-enriched soil repairing material, a potassium mineral-enriched soil repairing material prepared by using the method and application.The method comprises the following steps: mixing a potassium-enriched aluminosilicate mineral with a composite salt, finely grinding, and screening; performing thermal treatment on a finely grinded material; adding an activating agent to adjust the pH value of the material after thermal treatment, performing hydro-thermal activation treatment, and drying, so as to obtain the potassium mineral-enriched soil repairing material. The potassium mineral-enriched soil repairing material can be used as a base fertilizer to replenish nutrient elements such as potassium and silicon, the soil fertilitycan be improved, and heavy metal pollution of the soil can be also treated and repaired by using the material. The method is simple, effective and easy to operate, the raw materials are wide in distribution and simple and easy to obtain, and the product is convenient to transport and store, and good economic and environment benefits can be made.

The invention discloses a method for improving the yield and the quality of melons through in-situ intercropping. The method comprises the following specific steps of: plowing the farmland to carry out soil preparation, ditching and rising beds of 160cm, and plowing flatly the beds or forming a bed surface in a shape of turtle back, wherein the width of each bed is 120cm, and the width of each ditch is 40cm; carrying out frame cultivation on the melon, transplanting after culturing large seedlings, and transplanting two rows of seedlings in each bed, wherein the plant distance is 45-50cm, and the line space is 90-100cm; laying a support when the vine of the melon grows to 15-20cm at the vine growing initial stage of the melon, and guiding the vine onto the support when the vine of the melon grows to 50-70cm; paving a beer residue feed bed with the width of 100-120cm and the height of 6-10cm on the ground flatly among lines of melon plants after 7-9 days; inoculating earthworms according to the amount of 1300-1500 pieces per square meter after 10-15 days; and recycling the earthworms after the melon is harvested, and turning over the waste beer residue under the farmland to increase the soil organic matters and improve the soil fertility. After the method disclosed by the invention is adopted to plant the melons, the physical and chemical properties of soil are improved and the side-products earthworms are harvested; and meanwhile, the yield, the nutrient content and the like of the melon are improved, the cost can be reduced, high-quality and safer fruits can be produced, and multiple economic benefits are obtained.

The invention discloses a soil activating agent and a preparation method thereof. The soil activating agent is prepared from 8-12 parts of modified zeolite powder, 30-50 parts of biogas residues, 20-30 parts of straw powder, 10-15 parts of rice bran, 5-10 parts of rape seed cakes, 3-8 parts of humic acid mineral powder, 2-6 parts of swelling vermiculite powder, 1-5 parts of shell powder, 2-4 partsof gypsum powder, 0.5-1.5 parts of kieselguhr, 0.4-0.8 part of carboxymethyl chitosan, 0.3-0.7 part of leavening agent, 0.2-0.6 part of microelement additive and 3-7 parts of organic fertilizer. Theprovided soil activating agent can effectively improve soil structure, activate edaphon, enhance soil fertility, improve the soil capacity of preserving moisture and fertility, facilitate forming of soil aggregates, and be long in lasting time of preserving moisture and fertility and aggregating capacity, simple in preparation, low in cost, easy to operate, green and environmentally friendly.

The invention relates to an integration fruit tree fertilizing method utilizing discarded mushroom dregs. According to the method, the discarded mushroom dregs thoroughly decomposed are used for being combined with nitrogen phosphorus and potassium fertilizer to serve as the fruit tree base fertilizer, when the nitrogen phosphorus and potassium fertilizer is fertilized for fruit trees, the medium trace element fertilizer in combined application of mushroom dreg extract liquid is utilized for carrying out leaf surface topdressing, and/or the mushroom dreg extract liquid is washed with water for the topdressing effect in the irrigation process; the mushroom dreg extract liquid is sprayed on fruit tree leaf surfaces, tree trunks and the like, the crop resilience is improved, and diseases are reduced. According to the method, the aspects from soil to the crop, the base fertilizer to topdressing, the inorganic mode to the organic mode, and nutrition to disease and pest resistance are taken into consideration, and the environmentally friendly discarded mushroom dregs are utilized for plant growth promotion, soil improvement and disease and pest resistance, so that the fruit tree integration fertilizing method is formed; high value and the environmental protection effect of the agricultural discarded mushroom dregs are utilized, and the sustainable development of the agricultural production and the environment is achieved.

The invention discloses a bioremediation agent for treating compound contaminated soil and application thereof, and belongs to the technical field of remediation of heavy metal contaminated soil. The bioremediation agent is formed by mixing 10-35 parts of microbial agents, 5-25 parts of nanoscale shell powder, 2-10 parts of nanometer activated silicon fertilizer and 40-55 parts of aronia melanocarpa fruit residue powder by weight. According to the application method for the bioremediation agent, the bioremediation agent is applied to acid farmland soil contaminated by heavy metal, wherein the heavy metal comprises lead, cadmium and zinc, the concentration of the lead is 250-300 mg/Kg, the concentration of the cadmium is 0.3-0.4 mg/Kg, and the concentration of the zinc is 200-300 mg/Kg. he bioremediation agent is low in price of raw material and easy to apply and operate, can avoid secondary pollution to the farmland soil, improve the soil fertility and promote crop growth, and is high in application and popularization value.

The invention discloses an ecological landscape improving method of land difficult in afforestation. The method is used for ecological landscape improving and transforming by means of the technical measures like tree variety selection, planting mode selection, soil preparation and planting, cultivation, management and protection and the like. According to the ecological landscape design requirement of the land difficult in afforestation, a series of scientific and reasonable manual technical operation are conducted. By means of the technical measures, the ecological landscape of the land difficult in afforestation can be obviously improved, the soil fertility of the land difficult in afforestation can also be improved, and the aims that the forest density is reasonable, the community is stable, biodiversity is rich and forest landscape quality and ecological benefits are both taken into consideration are achieved.

The invention discloses organic water-soluble fertilizer and a preparation method. The organic water-soluble fertilizer is prepared from the following raw materials in parts by weight: 50-60 parts of lactic acid fermentation residues, 45-55 parts of amino acid, 20-30 parts of humic acid, 30-40 parts of ammonium dihydrogen phosphate, 40-50 parts of potassium nitrate, 20-30 parts of urea, 30-50 parts of calcium carbonate powder, 6-8 parts of glucose, 20-30 parts of starch, 3-5 parts of alginic acid, 13-16 parts of hydroxyethylcellulose, 3-6 parts of hydrogen peroxide, 2-6 parts of sodium stearate, 10-14 parts of bentonite, 6-9 parts of styrene, 13-16 parts of methacrylic acid, 3-4 parts of dimethyl formamide, 8-12 parts of astragalus polysaccharide, 4-8 parts of hypericin, 5-7 parts of hydroxyethyl cellulose, 3-5 parts of potassium fulvate and 60-75 parts of water. The organic water-soluble fertilizer has the advantages that soil organic matter can be increased, and emission of greenhouse gas is reduced; soil fertility is improved; the carbon and nitrogen ratio of soil is increased, and number and breeding of beneficial microorganisms are increased; soil permeability is improved, soil microbial flora is increased, and soil is improved; the soil pH is adjusted; heavy metals and pesticide residues in soil can be adsorbed and passivated, and damaged soil is remedied.

The invention relates to a fulvic acid organic fertilizer, comprising available nutrients of, by weight, 3-7% of nitrogen, 3-7% of phosphor, 3-7% of potassium, 8-12% of amino acid, 25-35% of organic matter, 15-25% of fulvic acid and 4-6% of plant-growth regulator. The fertilizer contains organic components with strong activity for activating soil, increasing microbe quantity by times and enhancing microbe vitality, as well as a plurality of inorganic quick result nutrition. The fertilizer has both efficacies of fertilizing and regulating plant growth; if applied into soil, the fertilizer can provide quick result nutrition required by plant growth immediately, improve the soil and enhance soil fertility, and has obvious effects on virgin soil, saline-alkali soil and barren soil and effects of adsorbing and complexing heavy metal ions in soil and mitigating soil pollution, so as to realize sustainable, efficient and harmless agricultural production, prevent pollution on agricultural products and improve agricultural product quality.

The invention discloses a method for preparing bio-bacterial manure by means of brewery waste diatomite. According to the product, mixed bacterium liquid of two antagonistic bacteria of bacillus licheniformis ABTNL-1 and bacillus subtilis ABTNL-2 is inoculated into the brewery waste diatomite, and after fermentation, the bio-bacterial manure is obtained. The bio-bacterial manure obtained through preparation can promote growth of various plants, and can improve the fertilizer retaining performance of soil. The product is simple in production process, wide in raw material source, low in production cost and suitable for large-scale production and reasonably utilizes waste in beer production.

The invention belongs to the field of soil improvement and specifically relates to a saline-alkali land soil improvement agent and a preparation method thereof. The saline-alkali land soil improvementagent is obtained by mixing organic waste fermented materials, activated humic acid materials, chemical acidic fertilizer, ecological acidic fertilizer and starch uniformly. The organic waste fermented materials in the soil improvement agent contain various beneficial microorganisms and organic matters, can improve the physical structure of the soil and have the function of regulating and controlling a soil biota; gram-positive bacteria in the organic waste fermented materials can kill harmful bacteria, nematode in the soil and reduce soil-borne diseases; gangue, peat and lignite in the soilimprovement agent serve as associated mineral of coal production, contain a large amount of organic matters and rich trace elements, contain nutritional elements such as carbon, nitrogen, phosphorus and potassium necessary for crops, and achieves the effects of improving the physical and chemical properties and the biological properties of the soil, improving the soil fertility and increasing theyield of the crops in the soil improvement agent.