86results about How to "Reduce fertilization" patented technology

A method for the removal and sequestration of ammonia nitrogen from anaerobic fermentation effluent while producing a higher BTU biogas. The method includes the steps of removing the slurry from the digester, stripping the ammonia from the slurry or portion thereof with a high BTU biogas, blending the stripped ammonia with the digesters biogas to remove the carbon dioxide and precipitate ammonium bicarbonate / carbonate as a solid while producing a high Btu biogas, a portion of which is used to strip the ammonia and CO2 from the slurry. The process removes ammonia nitrogen from the digester effluent while producing a high Btu biogas and a solid ammonium bicarbonate / carbonate product. Ammonia stripping is accomplished with a recycled stripping gas deficient in CO2 and ammonia that is capable of removing the CO2 and ammonia from solution by virtue of the lower partial pressures of CO2 and ammonia in the stripping unit.

The invention discloses an efficient multi-element compound fertilizer, which consists of hexanoic acid 2-(diethylamino) ethyl ester, polypeptide chelated potassium, polypeptide L-aspartate potassium, urea, potassium chloride, diammonium phosphate, calcium superphosphate, potassium dihydrogen phosphate, calcium-magnesium phosphate fertilizer, ammonium chloride, thiamine, zinc chloride, borax, ferrous sulphate, copper sulphate, manganese sulfate, sodium molybdate, cobalt chloride and silicon-manganese phosphate fertilizer. The efficient multi-element compound fertilizer has the advantages of promoting the growth of crops, improving the disease resistance of the crops, resisting falling, insect pests and frozen injury, improving the fertilizer effect, improving the soil, accelerating the growth of branches and leaves, reinforcing the photosynthesis, accelerating the growth of roots, enhancing the drought resistant capacity, improving the yield of the crops and improving the quality of fruits. The yield of grain crops is averagely increased by more than 26 percent, the yield of economic crops is averagely increased by more than 33 percent, and the yield of vegetable crops is averagely increased by more than 42 percent.

A method for the removal and sequestration of ammonia nitrogen from anaerobic fermentation effluent while producing a higher BTU biogas. The method includes the steps of removing the slurry from the digester, stripping the ammonia from the slurry or portion thereof with a high BTU biogas, blending the stripped ammonia with the digesters biogas to remove the carbon dioxide and precipitate ammonium bicarbonate / carbonate as a solid while producing a high Btu biogas, a portion of which is used to strip the ammonia and CO2 from the slurry. The process removes ammonia nitrogen from the digester effluent while producing a high Btu biogas and a solid ammonium bicarbonate / carbonate product. Ammonia stripping is accomplished with a recycled stripping gas deficient in CO2 and ammonia that is capable of removing the CO2 and ammonia from solution by virtue of the lower partial pressures of CO2 and ammonia in the stripping unit.

The invention discloses a planting method of jute in heavy-metal contaminated soil. The method comprises the following steps of: A, preparing soil and building a field, and applying passivator to reduce activity of heavy metal in the soil; B, selecting a specific jute variety with strong heavy metal contamination resistance, sowing in an enough amount at proper time to guarantee full seedlings; C, determining appropriate close planting, thinning / finally singlings in good time, and reserving enough basic seedlings; and D, intertilling / weeding in time, rationally topdressing / irrigating to culture effective strong plants; E, reinforcing prevention and control of diseases and insect pests to realize high yield of jute. By the jute planting method, the average yields of raw stems in light, medium and heavy contaminated jute fields are respectively 181.0+ / -16.4, 174.9+ / -15.7 and 158.5+ / -15.3kg / mu, which reaches the high-yield level of the jute growing area in South China; and the content of heavy metal in raw jute can be controlled in a range of related standard limit, so that agricultural safety and effective utilization of heavy metal contaminated soil can be realized. The method is simple in technology and practical, and has wide application prospect in broad heavy metal contaminated areas.

The invention discloses a preparation method of a compound rice seedling raising medium, belonging to the technical field of organic solid waste resource utilization. The preparation method comprises the following steps: drying grain stillage in air, screening to obtain the grain stillage with the particle size of 1-4mm; and adding nutrient soil and vermiculite, and evenly mixing, so as to prepare the compound rice seedling raising medium, wherein the particle sizes of the nutrient soil and vermiculite are 3-5 mm. The compound rice seedling raising medium comprises the following components by volume percent: 50-60% of earworm dung, 20-30% of vermiculite and 20% of nutrient soil. The compound rice seedling raising medium is simple in preparation method, rich in resources, cheap in materials, rich in nutrient and stable in property, waste is turned into wealth, and environmental pollution is reduced. When the medium is used for raising seedlings, the operation is simple and convenient, labor intensity is lightened, rice seedling quality is good, percentage establishment of the seedlings is high, the industrial development of rice seedling transplanting using a rice machine is promoted, and the construction of ecological towns and new rural areas is accelerated.

The invention discloses a composite rice seedling cultivation matrix and a preparation method of the matrix. The composite rice seedling cultivation matrix comprises the following components by weight: 60% of earthworm cast, 30% of vermiculite and 10% of nutrient soil by volume percent, wherein per cubic meter of matrix contains 7.5kg of ferrous sulfate heptahydrate. According to the invention, preparation method is simple, resource is rich and cost of materials is low, wastes are changed into valuable, the environmental pollution is reduced, and the seedling cultivation matrix is enough in nutrient and stable in properties. After the matrix is used for seedling cultivation, the operation is simple and convenient, and the labor intensity is lightened; furthermore, the rice seedlings are good in quality and high in percentage establishment of seedling. The matrix disclosed by the invention promotes the industrial development of rice transplanting of a rice transplanter, and is more beneficial to building ecological villages and towns and new villages.

The invention discloses a method for preparing compound fertilizer-conserving nutritional soil from anaerobic fermentation residue. The compound fertilizer-conserving nutritional soil is mainly prepared from biogas slurry, biogas residue, garbage leachate, adsorbing material and surface oil as raw materials; the ratios of the materials are 5-15% of biogas slurry, 20-35% of biogas residue, 35-55% of adsorbent for absorbing leachate in a city refuse landfill, 20-40% of surface oil and 1-2% of inorganic fertilizer. The nutritional soil provided by the invention can promote the root part to breathe and absorb nutrients, so the plant can gain chronic and long-term nutritional ingredients; the process adopts fermentation residue and garbage leachate as primary materials; the cost is low, and the process is simple.

The invention discloses a fertilizer and pesticide composition for strawberries. The composition comprises an organic fertilizer, a pesticide and a filler; the organic fertilizer comprises bean cakes, rice husks, mushroom residues, traditional Chinese medicinal residues, rice bran, chicken manure, plant ash, borax and Bacillus subtilis; the pesticide comprises lime nitrogen, sulfur, pentachloronitrobenzene and phoxim; and the filler comprises peat, vermiculite and perlite. The fertilizer and pesticide composition effectively control the successive cropping obstacle of soil borne diseases, improves the soil structure, has stable and lasting fertilizer effects, and allows planted plants to be strong and have enhanced stress resistance; and organic matters contained in the composition are wastes, have wide sources, and are combined to reduce pollution of agriculture wastes to environment.

The invention discloses a method of dressing for preventing root from decaying and saving fertilizer consumption, cultivating the rice seedling according to density which is increased by 8-12% than normal dressing; the fertilizer consumption is 75-90%b of that of normal dressing, among which 70-85% of fertilizer is used as base fertilizer when replanting rice seedling for whole plough layer; the left 15-30% is used as additional dress after 35-45 days of replanting. The invention can promote rice root growth, which is good for adsorbing nutrition from soil and fertilizer thoroughly to intensify property of lodging resistant; dramatically reduce dressing process; reduce azophoska consumption by 10-25%, which saves fertilizer resource and reduces ecological pollution caused by nutrition loss; reduce invalid tiller, increase ear survival rate, increase granule population of each ear and increase economical benefit of rice production.

A seedling planting method of a compacted straw slow-release fertilizer planter is characterized in that straw is compacted into a straw cylinder by an extrusion device, or is combined into a straw cylinder by splicing; the bottom of the straw cylinder is fixedly connected with a straw bottom through a positioning device to form a container, and a braided bag with a bottom, the shape of which is matched with the shape of the container, is sleeved on the container; and liftinglugs are arranged at the upper end of the braided bag; or the planter made of concrete, and the like is manufactured into a bearing container with ventholes at the bottom; a straw slow-release fertilizer liner which is made of compacted straw, is provided with a venthole is arranged inside the bearing container, and has the shape matched with the shape of the bearing container is arrangd inside the bearing container; a plant is put in the container and the container is filled with planting soil; when the soil filling reaches the height which a straw cover is matched with the straw cylinder, the straw cover is arranged on the surface layer of the planting soil to wrap up the plant, and the straw cover is filled with the planting soil again and is watered. The method can naturally and slowly release the fertilizer and emit carbon dioxide in the process of decay to facilitate the absorption of leave surfaces of the nursery stock, meanwhile, the device self becomes less tight and has good air permeability performance to facilitate the growth of the nursery stock root system.

The invention provides a remediation method of alkaline soil, and relates to the technical field of soil improvement. The method comprises the steps of (1), soil preparation; (2), soil loosening agentapplication; (3), soil improving fertilizer application. According to the method, the alkaline soil is restored through the steps of soil preparation, soil loosening agent application, soil improvement fertilizer application and the like to reduce soil alkalinity, improve soil characteristics, loosen soil, increase soil fertility to gradually improve soil alkalinization, soil sterilization and fertilizer addition are conducted while the soil alkalinity is reduced, and the method is a remediation method which has the effects of alkaline soil conditioning agent and value improving and synergism.

The invention discloses a method for planting kenaf on heavy metal contaminated soil. The method includes the following steps: A, preparing the land and building an area, and applying an passivant to reduce the activity of soil heavy metal; B, selecting a specific kenaf variety with high heavy metal pollution resistant capacity, sowing sufficiently in due time, and guaranteeing a full stand through one sawing; C, determining suitable close planting, performing thinning and final singling in due time, and reserving basic seedlings; D, intertilling and weeding timely, topdressing and irrigating reasonably, and cultivating effective strong plants; and E, strengthening pest control and achieving high yield of the kenaf. The original kenaf outputs of mild, moderate and serious contaminated kenaf gardens are 276.2+ / -25.5, 247.6+ / -23.4 and 220.9+ / -21.2kg / mu respectively when the method is used for planting the kenaf, the high yield level in southern kenaf areas in our country is reached, content of heavy metal in the original kenaf can be controlled within a relative standard limit, agricultural safety and efficient utilization of the heavy metal contaminated soil are achieved, the technique is simple and convenient, the method is easy to implement, and an extremely wide application prospect is provided in vast heavy metal contaminated areas.

The invention discloses a novel soilless blueberry cultivation method. The novel soilless blueberry cultivation method mainly includes the steps of container selection, medium selection and supporting drip irrigation facility construction, wherein in container selection, since blueberries belong to shallow-rooted plants and root systems of the blueberries are vertically distributed at 10-50 cm, root control devices with the diameter of 80 cm and the height of 40 cm are selected, and planting spacing is 1*2 m; in medium selection, coconut chaff with an EC value smaller than 0.8 mS / cm serves as a culture medium and is covered with rice chaff 10 cm in thickness, and blueberry seedlings are planted after the coconut chaff is soaked; in supporting drip irrigation facility construction, drip irrigation pipes 16-20 mm in diameter are adopted above the root control devices. The novel soilless blueberry cultivation method is capable of accelerating blueberry root growth remarkably, increasing the blueberry yield, controlling weeds and saving labor cost.

The invention discloses a low-phosphor stress response regulatory factor ZmPHR1, a gene for coding the protein and an application thereof, belonging to the technical field of genetic engineering and aiming at solve a problem that the phosphor utilization rate of the crops is low by a molecular breeding method. The amino acid sequence of the low-phosphor stress response regulatory factor ZmPHR1 is shown as SEQ ID NO: 2; or the sequence is replaced, deleted or added with one or more amino acid sequences, with the same function, of the amino acid. The invention further provides a gene for coding the regulatory factor ZmPHR1, wherein the sequence of the gene contains the nucleotide sequence shown as the SEQ ID NO: 1; and the invention discloses the application of the gene in plant breeding. The gene and the coding protein of the low-phosphor stress response regulatory factor ZmPHR1 provided by the invention have an important action in genetic improvement of the grains such as corns, wheat, rice and the like, and the industrial crops, and have an extensive application prospect.

The invention discloses a method for freely raising local chickens in a Chinese medicinal herb planting base. The method comprises the following steps of: raising one-month-old local chickens in the honeysuckle planting base, feeding the local chickens with feed once in the morning and at night in the initial raising period, reducing half feed in the morning after one week, reducing half feed again in the morning at the third week, feeding the local chickens with the same feed as the third week once at interval of one day from the fourth week in the morning, thoroughly eliminating the morning feed after one month, and feeding the local chickens at night as usual, wherein the local chickens freely seek for food in the honeysuckle woodland in the rest time, and the local chickens are freely grown by eating green grass, mosquitoes and dew in the honeysuckle woodland; changing the site once every week; and establishing a simple shed in which the local chickens perch and shelter from wind and rain in the site. The method has the advantages of enhancing the immunity of the local chickens, preventing the local chickens from being harmed by antibiotics and hormone and improving the qualities of chicken and eggs.

The invention discloses foliar fertilizer for puer tea trees. The foliar fertilizer is prepared from the following components in parts by weight: 4 to 10 parts of fresh puer tea leaves, 8 to 21 parts of jatamans valeriana rhizome medicine residues, 8 to 21 parts of radix puerariae medicine residues, 5 to 13 parts of rhizoma dioscoreae medicine residues, 6 to 15 parts of poria cocos medicine residues, 8 to 18 parts of fructus jujubae medicine residues, 5 to 16 parts of fructus lycii medicine residues, 10 to 25 parts of Xiaoqu fen-flavor liquor vinasse and 1 to 8 parts of brown sugar. The foliar fertilizer disclosed by the invention is obtained by fermentation; the foliar fertilizer contains a large quantity of nutrient elements including amino acids, polypeptides, vitamins and the like and can be used for supplementing nutrient element deficiency caused by various factor influences; the foliar fertilizer can also be used for rapidly balancing the ecology of probiotics in the tea leaves, increasing the plant disease and insect pest resisting capability of the tea trees and improving the quality of the tea leaves; the foliar fertilizer provided by the invention is produced by adopting industrial waste materials; a preparation technology is simple and the production operability is very strong; the planting production cost of puer tea is greatly saved.

This invention provides, inter alia, commensal organisms engineered to express antibody fragments, which inhibit sperm motility or fertilization and compositions comprising the same. The present invention provides for the use of the engineered commensal organisms or compositions comprising the same as effective contraceptive means in females.

The invention relates to neutral phytase gene phyC which comes from microorganism, has enzymolysis phytic acid, phytate and a complex compound thereof and releases mineral nutrition element activity of phosphorus and the like, the optimal pH in enzymatic reaction of an expression product thereof is neutral and is suitable for genetic transformation researches on crops such as mulberry tree, corn and rice and other crops with neutral harvested products. Therefore, with the phyC gene transferred to the mulberry tree, the optimal pH in enzymatic reaction of the expression product is consistent with the pH of the mulberry leaf, in addition, the enzymatic reaction of the expression product of the phyC gene can carry out enzymolysis on the phytic acid, the phytate and the complex compound thereof to release the phosphorus, contributes to absorption and application of the phosphorus by the mulberry tree, reduces fertilization of phosphate fertilizer and pollution of the phosphate on the environment, promotes growth of the mulberry tree; in addition, neutral phytase gene phyC of the invention features relatively high enzymatic activity, approximately 10% higher than the activity of the phytase of the same kind according to measurement.

The method for making organic biological flower pots and granules from dewatered sludge, using dehydrated sludge containing organic components for plant maintenance and having a moisture content not higher than 80%, adding CaO as a curing and disinfectant, and adding degradable plant fiber substances as molding The core bone material is mixed and stirred by mixing equipment, and the sludge is solidified and sterilized, and then transported to the pressing equipment for pressing and forming, and after forming, it is naturally air-dried to become a finished product; the weight ratio of the dewatered sludge is 90% to 93% , the addition of CaO is 5% to 8%, and the addition of degradable plant fiber material is 2% to 4%.

The invention belongs to the technical field of lawn maintenance equipment, and particularly relates to a lawn weeding and fertilizer applying all-in-one machine. The lawn weeding and fertilizer applying all-in-one machine comprises a machine body, a cleaning module, a collecting module, a cutting module and a fertilizer applying module, wherein the cleaning module comprises a cleaning motor, a rotating shaft, a mounting plate, a comb plate and wheels and is used for cleaning impurities such in grass such as stone; the collecting module comprises a guide rail, a slider, an air cylinder, a sweeping block and a collecting tank and is used for collectively collecting the cleaned impurities; the cutting module comprises a group of cutting units which are arranged in a staggered mode, every cutting unit is composed of a cutting motor, an extending bar, a cutting sheet and a wheel, and the cutting module is used for cutting grass into a required length; the fertilizer applying module is mounted inside the machine body. When applied to weeding lawns, the lawn weeding and fertilizer applying all-in-one machine can control the comb plate of the fertilizer applying module to apply fertilizerto the root of grass, controls liquid output by operating a control valve to achieve fertilizer amount control according to different fertilizer requirements of different places to achieve uniform fertilizer application.

The invention discloses a tomato plug seedling raising substrate block and a preparation method thereof, and belongs to resource utilization of waste. The components of the tomato plug seedling raising substrate block comprise a substrate and an adhesive counting for 25-50% of the substrate by mass; the substrate is prepared from, by volume, 50-70% of humic livestock and poultry excrement, 10-20%of grass carbon, 10-20% of vermiculite and 10-20% of perlite. According to the tomato plug seedling raising substrate block and the preparation method thereof, organic agricultural waste is subjectedto decomposition fermentation treatment, the raw materials are wide in source, easy to obtain and low in price, the resources are saved, the environment is protected, the formula is simple, the purpose that fertilization is not required during the seedling raising period and the growth period is achieved, the substrate block is not dispersed and is suitable for mechanical operation of vegetables,the labor production rate is increased, the labor cost is decreased, and therefore the tomato plug seedling raising substrate is suitable for popularization and application.

The invention discloses package fertilizer special for citrus and a preparation method of the package fertilizer. The package fertilizer include autumn and winter fertilizer, spring fertilizer, fruitstabilizing fertilizer and fruit enhancing fertilizer, and the autumn and winter fertilizer, the spring fertilizer, the fruit stabilizing fertilizer and the fruit enhancing fertilizer each are prepared from nitrogenous fertilizer, phosphatic fertilizer, potassic fertilizer, magnesium oxide, borax, humic acid and filling materials in different proportions, wherein the nitrogenous fertilizer and thephosphatic fertilizer exist in different forms. The package fertilizer can effectively solve the problems that as for existing fertilizer, the proportions of nitrogen phosphorus and potassium are notcoordinated, microelements cannot be supplemented, and soil acidification cannot be prevented and controlled, consequently, roots of citrus trees rise and is low in activity, the drought resistance and cold resistance capacity declines, and produced citrus fruits are poor in quality and low in yield.

The invention discloses an imitative wild cultivation method for multi-bud paris polyphylla under a walnut forest. The imitative wild cultivation method comprises the following steps: S1, selecting aland and carrying out land preparation; selecting a walnut forest land and cleaning weeds under trees; carrying out land preparation and pruning branches and leaves of the walnut trees; S2, planting;selecting seed seedlings obtained by second seedling emergence or vegetative propagation seedlings obtained by first seedling emergence; transplanting the seedlings into the prepared walnut forest from June to July of the next year; S3, managing; after sowing seeds, growing through natural rainwater; after seedlings of the multi-bud paris polyphylla emerge, removing the weeds in time; S4, harvesting; after cultivating for 3 to 5 years, harvesting tuber finished products of the multi-bud paris polyphylla. According to the imitative wild cultivation method disclosed by the invention, the multi-bud paris polyphylla is cultivated under the walnut forest in a wild condition imitating manner by utilizing the characteristic that the multi-bud paris polyphylla originally grows under the forest; plenty of walnut forest land resources are sufficiently utilized and a condition that the multi-bud paris polyphylla is fond of a growth environment formed by warm, shady and cool and relatively dark and moist and loose humus soil with a good water drainage effect is abided by; concentrated cultivation management can be realized through imitative wild cultivation; the yield and quality also can be improved, and large-area popularization and application are facilitated.

The invention discloses a fertilization and irrigation method for promoting rice glumous flower differentiation and reducing degradation. The method is characterized by sequentially comprising the following steps that 1, rice base fertilizer is applied in a rice field before rice seedlings are transplanted, and the total nitrogen content of the rice base fertilizer is controlled to be 90-110 kg / ha, wherein the rice base fertilizer is composed of inorganic fertilizer and organic fertilizer, the nitrogen content of the organic fertilizer accounts for 60-70% of the total nitrogen content of the rice base fertilizer, and the nitrogen content of the inorganic fertilizer accounts for 30-40% of the total nitrogen content of the rice base fertilizer; 2, after transplanting, a chlorophyll instrument is adopted for measuring the SPAD value of leaves in the tillering early stage, the four leaf stage and the second leaf stage, and the nitrogen application amount is determined according to the SPAD value for variable topdressing; 3, moisture is precisely managed according to the stage of growth and development and set minimum soil water potential. The problem that too much nitrogen is accumulated in the plants in the spike differentiation process of modern high-yield rice varieties, particularly large-panicle super hybrid rice varieties to cause reduction of the number of final kernels per spike is solved, the yield is improved, and nitrogen fertilizer consumption and water irrigation amount are reduced.

The invention discloses a method and a system for accurately controlling recycling of kitchen wastes according to the current soil situation. The method comprises the following steps: transmitting monitoring data to remote data analysis software in real time by using a soil-data remote collecting unit, establishing a model, calculating control parameters needing to be set in the treatment process of the kitchen wastes, transmitting control parameter data to a site detection control hardware so as to strictly control the conversion process of the kitchen wastes; arranging an activation reactor of mineral substances to carry out activation treatment on the minerals; and combining a high-temperature aerobiotic kitchen-waste treating system and an external-circulation non-gradient biochemical reaction unit, and monitoring the fermentation conditions at all points in a fermentation system in real time so as to carry out dynamic adjustment on the control parameters. According to the method and the system disclosed by the invention, the recycling of the kitchen wastes can be accurately controlled according to the current soil situation, the purposes of low fertilizer application amount and refined fertilizer application can be achieved, and the problems of high salinity, poor fertilization effect and unstable quality of the traditional kitchen-waste fermentation fertilizers are effectively avoided.

The invention relates to a method for continuously cultivating pseudo-ginseng, and the method comprises the following steps (1) land resumption preparation and soil treatment; (2) pesticides spreading; (3) film covering; (4) film uncovering; (5) seedling emergence testing; (6) fertilizer adding; and (7) sowing or germchit transplanting. After disinfection treatment is performed on soil with 98% dazomet, soil insects, soil-borne pathogenic bacteria and weeds are killed, bacterial manure, a small-molecule organic carbon fertilizer, a microbial agent and organic matter are added, and thus a function of a total nutrition library of soil can be restored. The problem that pseudo-ginseng cannot be continuously cultivated is solved, and at the same time, scientific and reasonable disinfection andfertilization methods are provided; and old land can realize continuous rotation of pseudo-ginseng, and a green development road for old land to realize continuous cropping of pseudo-ginseng is provided. In the later-period growth of pseudo-ginseng, no weeds grow on the soil, fertilization and pesticide use in the later period can be greatly reduced, the pollution of fertilization and pesticide use to the environment is reduced, at the same time, pseudo-ginseng is not prone to contract diseases, and the survival rate of seedlings can be up to 94%.

The invention discloses a stereo ecological planting and breeding combined method for a tea garden. The method includes steps of tea garden preparation, chicken house construction, free-range farming in the tea garden and the like. The tea garden is comprehensively ploughed by a depth larger 0.8m, the tea garden with gradient larger than 15 degrees is prepared into horizontal terraces, the tea garden with gradient smaller than 15 degrees is constructed into an equal-altitude garden, and trenches 0.5m in width and 0.4m in depth are dug among lines at intervals of 1.5m. Close planting of tea seedlings is changed into reasonable thin planting, the a chicken house is constructed beside the tea garden, chickens are raised in the tea garden, excrete and acquire food in the tea garden, and consequently organic fertilizer input is increased, soil fertility is improved, hazards of diseases, pests and weeds are alleviated, and potential safety hazards of agricultural product quality are eliminated. By field free-range farming of the chickens, an activity range is expanded, activity intensity is improved, resistance of the chickens can be beneficially improved, medicines for preventing and treating epidemic diseases are reduced, the flavor of poultry products can be improved, product quality safety level is raised, green food production is effectively promoted, and safety consumption level is raised.

The invention discloses a vegetable cultivation nutrient bed and a vegetable cultivation method, and belongs to the technical field of vegetable soilless cultivation production. The vegetable cultivation nutrient bed mainly comprises surrounding walls on the two sides and a bed body in the middle, the bed body is composed of a water-retention film layer, a cobblestone layer, a water-permeable film layer and nutrient soil, and the water-retention film layer, the cobblestone layer, the water-permeable film layer and the nutrient soil are sequentially arranged from bottom to top. The water-retention film layer is a right-angle U-shaped plastic film located at the bottommost layer, and the nutrient soil is formed by uniformly mixing and fermenting the raw materials comprising, by weight, 5-15 parts of river sand, 25-35 parts of chaff, 25-35 parts of biogas slurry and 25-30 parts of sawdust. Vegetables cultured through the bed and the method are high in quality, high in yield, environmentally friendly, clean and healthy, save cost and have the advantages of being capable of maturing early, little in disease, free of inorganic fertilizers and free of pollution, saving water and labor and the like.

The invention relates to the field of agricultural chemistry, in particular to herbicidal fertilizer for a rice field. The herbicidal fertilizer is prepared from, in percentage by weight, 0.015%-0.5%of a herbicide, 0.1%-0.6% of an aid and carrier fertilizer, wherein the aid is prepared from an emulsifier, a dispersant, a viscosity regulator and an organic solvent; the herbicide is prepared from afirst effective ingredient and a second effective ingredient, the first effective ingredient is penoxsulam; the second effective ingredient is any two of bispyribac-sodium, fenoxaprop-p-ethyl and clomazone. The effective herbicidal ingredients in the herbicide fertilizer adopt a combination manner of three different herbicides and have complementary advantages, the herbicide controlling spectrumis enlarged, and double effects of fertilizer and the herbicide are realized. The herbicidal fertilizer integrates the herbicide and the fertilizer, has double functions of weeding and fertilizer effects by combining the herbicide and a fertilizer carrier and is labor-saving, time-saving, effort-saving and cost-saving. With the combination of the aid, the herbicidal fertilizer has excellent thermal stability, high yield and good herbicidal effects.

The invention provides a ficus carica cutting composition prepared from organic fertilizer, calcium-magnesium-phosphate fertilizer, agents and filling materials, wherein the organic fertilizer includes cow dung, saw dust and rice husks; the agents include ABT, lime nitrogen, mixed amino acid copper complex, and phoxim; the filling materials include peat, perlite and vermiculite. With the composition, the cutting emergence rate and survival rate of ficus carica can be increased, pest and disease control effect is good, labor and costs are saved and operation is convenient.