370results about How to "Improve fat retention" patented technology

The invention discloses a high nutrient compound selenium fertilizer comprising selenium, nuisanceless organic material-inorganic material and medium and trace elements, and a preparation method thereof. The high nutrient compound selenium fertilizer comprises 45-60 wt% of organic material, 55-35 wt% of inorganic material, 1-6 wt% of medium and trace elements, and 0.011-0.025 wt% of purified selenium. The fertilizer disclosed in the invention can increase yield efficiently, and allow the applied plant to contain selenium element which has health care effect to human body. The fertilizer adopts a plurality of internal adsorptions to protect selenium to let the selenium in the selenium fertilizer be effective, has good intermiscibility and degradability, keeps selenium from fix, and obviously improves the biological absorption utilization rate of selenium of plants (including tea).

The invention discloses a process for preparing a liquid seaweed fertilizer through enzymolysis and fermentation. The process disclosed by the invention can be used for generating a large quantity of soil beneficial bacteria and multiple special-effect metabolites by degrading macromolecular substances which are contained in seaweeds and difficult to utilize into micromolecular polysaccharide, monosaccharide and a nitrogen-containing compound in compound enzymolysis and multi-strain co-fermentation modes, thereby enhancing the biological activity of a seaweed fertilizer, preventing the destruction of strong base, high temperature and high pressure in the production process of the seaweed fertilizer and completely retaining abundant nutrient substances contained in the seaweeds. According to the process, the content of a product, namely alginic acid, is 40-60 g / L and is increased by more than 30% compared with that prepared from an enzymolysis method, an alkaline hydrolysis method, an acid hydrolysis method and a simple microbe fermentation method, and the effective viable count is more than or equal to 2 billion / mL; the product integrates natural nutrient components, antibiotic substances and plant hormones, combines the efficacy of three fertilizers, namely an organic fertilizer, a microbe fertilizer and a trace element fertilizer and has a wide application prospect.

The invention relates to a saline-sodic land reclamation and control method. Wide and deep research is long developed on the reclamation of saline-sodic land at home and abroad, and more focuses on engineering measures than applies biological techniques; although achievement has been made, some insurmountable difficulties still exist. The saline-sodic land reclamation and control method comprises the following steps: bulk deep loosening, applying soil deep loosening agents and saline-sodic soil improvement agents to deep loosening soil, purposefully and proportionally applying biologically organic fertilizer according to the composition of soil detected by adopting a nutrient balance method and a nitrogen phosphorus and potassium proportioning method which both comprise the following steps: subtracting soil nutrient-supplying amount from the fertilizer requirement of target yield, supplementing the balance through fertilizing, hathpace ridge forming, draining water and controlling salt, planting green manure-saline alkali tolerant high-yielding grass crop jerusalem artichoke to thoroughly improve the soil.

The invention discloses a method for preparing organic fertilizer from paper-making sludge. The materials such as paper-making sludge, amendment are mixed, subjected to high-temperature aerobic fermentation, post maturation and crushing, screened, and mixed with fertilizer of nitrogen, phosphorus, potassium and the like and medium and micro elements to prepare the organic fertilizer. The method has the advantages of simple process, easy operation, obvious innocuous effect, no environmental pollution and little nutrient loss; and the organic fertilizer prepared by the method is widely applied to industrial crops such as vegetables, fruit trees, Chinese herbal medicines, flowers and field crops such as wheat, corn, paddy rice.

The invention discloses a plant growth soil culture medium, which is composed of the following materials in percentage by weight: 30-32% of clay, 35-38% of organic matter, 19-25% of plant fiber, 3-6% of stabilizing agent, 0.035-0.085% of aggregate agent, 2% of fertilizer, 36-45% of clean water and 0.9-3.3% of seed. The invention also discloses a preparation method of the plant growth soil culture medium. The plant growth soil culture medium has the advantages of stable soil aggregate structure, water retention, fertilizer retention and good air permeability, and is suitable for plant growth. The preparation method is novel and convenient and has low consumption and operability.

The invention discloses a composite soil passivator for reducing contents of cadmium and lead as well as a preparation method and an application method of the composite soil passivator. The composite soil passivator comprises the following components in percentage by weight: 5-15wt% of composted chicken manure, 5-15wt% of composted mixture of rice chaff and husk, 5-15wt% of turf, 10-20wt% of silicon-calcium-magnesium-potassium fertilizer, 5-15wt% of talcum powder, 25-35wt% of sepiolite, 10-20wt% of stacking fermented sugarcane filter mud and 1.5-2.5wt% of microbial fermentation liquor. The composite soil passivator can be widely applied to the mild and moderate cadmium / lead polluted rice fields to ensure that active cadmium and lead of the soil in the heavy metal polluted rice fields are respectively reduced by 51.5-51.6% and 52.6-58.8%, the cadmium and lead contents of the polished rice are respectively reduced by 48.8-51.6% and 52.7-56.0% and the pH value of the soil is improved by 0.97-1.04; and the composite soil passivator has the functions of restoring the acidized soil, improving the soil fertility and improving the physicochemical property of soil and has huge popularization and application values.

The invention provides a novel column-shaped three-dimensional cultivation method and device for medical dendrobium. The method is characterized by comprising the following steps of making a cultivation device serving as an auxiliary article in a hollow column-shaped body structure; filling a cultivation medium in the interior cavity of the hollow column-shaped body, wherein the hollow column-shaped body is at least 0.5 m in height and at least 8 cm in diameter, the external surface of the hollow column-shaped body is uniformly provided with seedling planting areas, and a cultivation medium composition mainly comprises the following raw materials in parts by volume: 5-15 parts of barks, 10-30 parts of saw dust and 3-10 parts of vermiculite; selecting healthily-growing seedlings to be hardened and then washing the hardened seedlings during cultivating and transplanting the dendrobium seedlings; and after sterilizing by using 800-1000 times of liquid carbendazim, transplanting the seedlings in different plant bunches according to the seedling planting areas, wherein row spaces of the transplanted plants are 4-6 cm*10-15 cm. Compared with the prior art, the cultivation method provided by the invention is very suitable for growth habits of the wild medical dendrobium; and the medical dendrobium cultivated by using the invention has the advantages of easiness for material obtaining, low cost, long service life, good water retention and fertilizer securing effects, high planting density, land utilization rate capable of being increased by 6-7 times, high and stable yield, good product quality and convenience for management.

The invention relates to a manufacturing technique of plant drought-resistant water-preserving organic fertilizer, comprises the following steps: weighing component weight parts: humic acid 150-300, microelement or biological bacterium fertilizer 10-30, fermentative excrement of human, livestock, poultry 600-700; mixing granulating and screening to get particles which phi 1-3 mm, baking, rescreening; putting 780-820 parts in a pelletizer, spraying water on particle surface when rolling, then feeding to a rotary drum with 18-22 parts of water-preserving agent, coating in the rotary drum pelletizer; feeding coated organic fertilizer in a rotary drum pelletizer with 20-40 parts of bentonite, when the bentonite separate the organic fertilizer fully, screening excess bentonite; feeding coated organic fertilizer sticking with bentonite after screening in a dryer, through sampling and detecting during drying procedure, when water content gets to less than 8%, taking out all organic fertilizer, airing to normal temperature to get products. The invention has advantages of drought-resistant and water-preserving, good nutrient preserving capability, low cost, simple and convenient application method.

The invention provides an acidic soil conditioner, and a preparation method and application thereof. The acidic soil conditioner comprises the following components in part by weight: 4 to 8 parts of composite bacterial agent, 80 to 90 parts of acid adjusting factor, 3 to 7 parts of chelate and 2 to 6 parts of organic matter. The acidic soil conditioner adjusts the pH value of soil, promotes formation of soil aggregate structures, improves the physical property of the soil, creates a good ecological environment for the growth of plants, increases organic matters, calcium, magnesium and silicon and the activities thereof, promotes healthy growth of crops, enhances stress resistance and prevents diseases and pests. By adoption of the composite bacterial agent, the constitution of a microflora of the soil can be improved, the microbial activity of the rhizosphere of the crops is enhanced, mineralization of organic pollutants is accelerated, growth of the plants is promoted, and absorption of degradation products and bioremediation of the polluted soil are accelerated. The acidic soil conditioner has no toxicity, residues and pollution, accords with the development tendency of organic pollution-free agriculture and has great popularization and application values.

The invention relates to a light, simple and efficiency cultivation method for cotton. Straw-like light seedling raising medium is filled in paper cylinder and pot or paper plug or nonwoven fabric bags for raising cotton seedlings, and mechanical sowing, transplanting and cotton harvesting can be performed. The light, simple and efficiency cultivation method has the characteristics of labor conservation, cost conservation, high yield and high efficiency, requires small investment, makes operation easy, avoids environment pollution and is a new method for large-scale cotton production with bright promotion and application prospects.

The invention discloses a novel green biological organic fertilizer and belongs to the technical field of agricultural biological fertilizers. The novel green biological organic fertilizer is prepared from the following raw materials: straw mixture, seaweed residue, humic acid, amino acid and multifunctional zymophyte. The novel green biological organic fertilizer provided by the invention has the advantages that nutrients required by crops can be provided, incidence of plant diseases and insect pests can be greatly reduced, usage amount of pesticide is reduced, and crop yield and quality are improved.

The invention relates to a method for transplanting cotton seedlings. The method comprises three steps of preparation of a matrix, sowing and transplanting sequentially. Step 1, cotton stalks, rape stalks, corn stalks, soybean stalks or wheat straws are crushed, added with a nitrogenous fertilizer, and mixed with human excrement or livestock and poultry manure bio-fertilizer or other fertilizers to obtain a mixture which is treated to obtain a prepared material, then the prepared material is sun-dried or baked, added with a fungicide and bagged for spare use; step 2, the prepared cotton stalk matrix or the matrixes prepared from other stalks are filled in a seedling raising aperture disk or flatly spread on a plastic film laid on the ground as a seedbed, seeds are sown, watered and covered with an agricultural film, and seedlings are raised under heat insulation condition; step 3, an antitranspirant and a rooting agent are applied before transplanting; the taken seedlings are bound, put in the watered rooting agent solution for root soaking, and then taken out and put in a watered gel containing a water retention agent to dip the roots; when in transplantation, the water retention agent is applied to planting furrows; after transplantation, the seedlings are covered with soil, and irrigated with adequate water for fixing the roots. The method is characterized by high seedling survival rate, stable effect, short rejuvenation period, low cost and environmental protection.

The invention relates to a method for improving soil in a saline-alkali land. The method is characterized by comprising the following steps: (1) punching the soil and improving the harden degree of the soil; (2) fertilizing; and (3) watering. A fertilizer applied to the method for improving the soil in the saline-alkali land adopts a formula containing a microorganism organic fertilizer after greening waste treatment, fine sand and a plant growth regulator at a volume ratio of (70-80):(19-29):1. The method has the technical effects and advantages that 1, the punching fertilizing excellently solves the phenomenon that a sloping lawn cannot normally absorb water fertilizer and causes the lawn to vigorously grow; 2, the border trees treated by taking a punching ventilating nutriment-replenishing measure are characterized in that the blade color is deeper, the blade is fat and the leaves are lush; 3, the harden soil is loosened and the water-holding and fertilizer-retaining capabilities of the soil are enhanced; 4, the soil is improved and fertilized; and 5, the environmental protection is benefited.

The invention discloses a green and environment-friendly soil stabilizer taking industrial waste as raw material and an application method thereof, which overcomes the problem of the prior art that lime or cement is taken as the main component of hardening agent, and the lime or cement is hardened to form a fully dense structure, plants can not grow in the structure, so the road greening can not be realized, and other problems. The soil stabilizer of the invention takes the industrial waste as raw material, the industrial waste is evenly mixed with pre-gelatinized starch and sodium polyacrylate, the industrial waste can be of one or the combination of more kinds of coal ash, blast furnace slag or silica micropowder and is used for solidifying soil and preventing water loss and soil erosion; the application method is as follows: the soil stabilizer, plant seed, soil and water are stirred into complex soil, and then the complex soil is coated on the construction surface, the complex soil can be solidified in short time, and usually can not generate water loss and soil erosion under the rainfall condition. The soil stabilizer of the invention has good water permeability, air permeability, water-retaining capacity and nutrient preserving capability, has neutral PH value and facilitates the sprouting and growing of plants.

The invention discloses a paddy rice seedling breeding matrix, and belongs to the technical field of soilless culture. The full-nutrient paddy rice seedling breeding matrix is prepared from the following raw materials: decomposed organic manure, turf, clay, zeolite powder or bentonite, vermiculite, fine river sand, rice hull powder or corn straw powder or mushroom residue powder, soybean meal, ammonium sulfate, calcium superphosphate, potassium chloride, magnesium sulfate heptahydrate, zinc sulfate heptahydrate, ferrous sulfate heptahydrate, boric acid, copper sulfate pentahydrate, manganese sulfate monohydrate and sodium metasilicate nonahydrate. The full-nutrient paddy rice seedling breeding matrix disclosed by the invention has the advantages of high fertilizer-retaining property and water-retaining property, good air permeability, high buffering, full nutrient and more persistence in fertility, achieves the pH of 5.0-5.5, and is lower in cost by utilizing agricultural wastes, namely rice hulls, corn straws, mushroom residues and the like, suitable for batch production, good in seedling breeding effect and convenient for a farmer to use.

The invention discloses a soil conditioner. The soil conditioner comprises, by weight, 20-30 parts of limestone powder, 14-16 parts of vermiculite powder, 19-22 parts of papermaking sludge, 10-13 parts of crop straw powder, 11-14 parts of livestock and poultry night soil, 7-10 parts of humic acid, 6-10 parts of starch, 12-15 parts of peat, 4-8 parts of polyacrylamide, 7-9 parts of polyethylene glycol, 5-7 parts of polymalate and 0.5-1 part of dendrobium. Compared with common conditioners in the market, the soil conditioner adopting the above technical scheme has the advantages of effective improvement of the soil structure, improvement of the fertilizer conservation ability of soil, adjustment of the temperature of the soil, soil erosion reduction, soil salt adjustment, plant growth promotion, crop output increase, small side effects, and environmental protection requirement meeting.

The invention discloses a special compound microbial fertilizer for rice. The fertilizer is prepared from the following raw materials in parts by weight: 20-32 parts of a microbial agent, 5-15 parts of charcoal, 20-30 parts of a nitrogen phosphorus potassium fertilizer, 1-5 parts of trace elements, 3-10 parts of nano-titanium dioxide, 5-15 parts of traditional Chinese medicine composition, 12-20 parts of a silicon-calcium-magnesium fertilizer and 2-5 parts of bamboo vinegar. The compound microbial fertilizer is reasonably prepared according to nutritional requirement of rice, can be used for improving the physical and chemical property and granular structure of soil, improving the fertilizer and moisture retaining capabilities of rice, promoting quick growth of the root system of rice, improving the transplanting survival rate of rice, inhibiting growth of weed, plant diseases and insect pests, reducing occurrence of soil-borne diseases to the furthest extent and reducing use of pesticides, is capable of reducing cost, and facilitates sustainable development of economy and society.

The invention relates to an organic fertilizer, and in particular relates to an efficient organic fertilizer and a preparation method thereof. The fertilizer comprises the following concrete components in parts by weight on dry basis: 10-25 parts of livestock manure, 60-70 parts of cornstalk, 1-3 parts of urease inhibitor N-(n-butyl)triophosphoric triamide (NBPT), 10-20 parts of turf, 0-3 parts of trace elements and 0-1 part of magnesite. The principle of the invention is as follows: the ratio of carbon to nitrogen in the organic material is controlled, the urease activity is controlled, the ammonia ions are stabilized, the utilization ratio of nitrogen is improved and the ratio of nitrogen to phosphorous to potassium is kept relatively stable in the soil, thus achieving the application effect of balanced fertilization. The fertilizer has the following advantages: the utilization ratio of fertilizer nutrients can be remarkably improved; various nutrients essential to growth of plants can be satisfied and supplied; and the soil is improved, the ecological environment is protected, the growth of plants is conditioned and the yields and quality of the crops are improved.

The invention relates to an agricultural organic fertilizer, and specifically relates to a microbial organic manure and preparation method thereof. The microbial organic manure comprises a microbial organic fertilizer and an absorption microbial fertilizer. Wherein, the proportion of the absorption microbial fertilizer to the microbial organic fertilizer is 5%-10% by mass. According to the invention, microbes are utilized to accelerate the decomposition of raw materials and kill harmful pathogenic bacteria in livestock and poultry dungs. When the manure of the invention is spread into soil, the bacterial strains in the manure reproduce rapidly so that the nutrient potential of the environment can be brought into full play. In addition, lots of fresh humus generated in fermentation can improve the soil, improve fertilizer conservation and supply capability as well as ventilation and water permeability of the soil, stimulate plant growth, and strengthen plant nutrient supply and diseaseresistance of crops.

The invention relates to an agricultural waste recycling technology and a soil fertilizer technology, in particular to a blended facility vegetable field soil conditioner taking charcoal as a matrix and a preparation method thereof. The blended facility vegetable field soil conditioner comprises the following components in percentage by weight: 60 to 80 percent of charcoal, 5 to 15 percent of medical stone powder, 5 to 15 percent of zeolite powder and 5 to 15 percent of lime nitrogen. The method for preparing the soil conditioner comprises the following steps of: mixing and stirring the medical stone powder which is sieved with a 60-mesh sieve, the zeolite powder which is sieved with a 60-mesh sieve and the granular lime nitrogen uniformly, mixing the mixture with the charcoal, and stirring uniformly to prepare the soil conditioner. The method is simple and pollution-free, the volume weight of soil can be reduced, the buffer performance of the soil can be improved, the utilization rate of fertilizer nitrogen and phosphorus can be improved, and an effect of preventing and controlling soil-borne diseases is achieved.

The invention discloses a complex water-retaining synergistic chemical fertilizer which is composed of the following constituents by weight proportion: 88%-92% of nitrogenous fertilizer, 1%-2% of laurinol oxethyl ammonium sulfate, 1%-2% of water-retaining agent, 2%-3% of complex biological bacteria, 1%-2% of humic acid, 1%-2% of zeolite powder and 1%-2% of bentonite. The complex water-retaining synergistic chemical fertilizer provided by the invention can be used for effectively improving the soil aggregate structure, eliminating the soil hardening and enhancing the soil permeability, thereby enhancing the fertilizer utilization rate, increasing the soil water-retaining ability, improving the soil structure, promoting the crop growth and improving the crop quality.

The present invention relates to a plantation method of millettia speciosa champ, and belongs to the agriculture plantation field. The plantation method specifically comprises the following steps of selecting the land suitable for planting the millettia speciosa champ, applying base fertilizer prepared by mixing self-made farm manure, plant ashes and quicklime according to a certain ratio, and plowing and bedding, wherein the self-made farm manure is prepared by mixing millettia speciosa champ litters, corn stalks, wheat straws, coconut shells and soybean meal with pig, cattle and sheep manure and night soil; then selecting millettia speciosa champ seedlings, transplanting the millettia speciosa champ seedlings in the land, and covering a membrane; and fertilizing once a year, timely cutting tails and cutting flowers, paying attention to insect disease prevention, and harvesting the millettia speciosa champ after cultivating the millettia speciosa champ for three years. The plantation method is simple in operation and high in practicality, and is suitable for large scale systematic breeding, diseases and pests can be reduced and prevented, the plant survival rate is high, growth speed is fast, and production cost is low.

The invention discloses three-laminated composite board type full-nutritional rice seedling breeding bedding and a preparation method thereof and relates to rice seedling breeding bedding and a preparation method thereof. The problems that existing seedling breeding bedding is poor in water-retaining property, fertilizer efficiency in the later period of seedling breeding is poor, strength is low, and the existing seedling breeding bedding is not suitable for being transported and carried are solved. The seedling breeding bedding is divided into three layers from top to bottom, the middle layer is a core layer, and the surface layers are located on the two sides of the core layer. The preparation method comprises the following steps that (1), straw is cut into sections; (2), steaming and softening are conducted; (3), the straw is ground and kneaded to be in a fiber shape and is dried; (4), mixing is conducted; (5), paving is conducted; and (6), hot-pressing is conducted. According to the three-laminated composite board type full-nutritional rice seedling breeding bedding (as shown in figure 1) produced through the preparation method, when no water is absorbed by the three-laminated composite board type full-nutritional rice seedling breeding bedding, the static bending intensity is 21-22.8 MPa, and the internal bonding strength is 0.35-0.40 MPa; and the three-laminated composite board type full-nutritional rice seedling breeding bedding is high in strength, not prone to breakage or damage and easy to cut and can be manufactured to be in different shapes.

The invention discloses a production method for a biological organic fertilizer containing medium trace element chelates of humic acid. The biological organic fertilizer belongs to the field of manufacturing of composite fertilizers. The production method comprises the following steps: with pig manure, human feces, cow dung, rabbit manure, vinasse, cassava residue, leftovers in production of monosodium glutamate, trench mud, corn straw, soybean straw, vetch straw, a rapeseed cake, a tea seed cake, a deodorant, a biological nitrogen fixation bacterium, a phosphate solubilizing bacterium, a potassium solubilizing bacterium, a nodule bacterium, actinomyces, a silicate bacterium, trichoderma sp., microzyme, a photosynthetic bacterium, calcium humate, zinc humate, magnesium humate, iron humate, copper humate, and manganese humate used as raw materials, carrying out tank continuous fermentation to allow the raw materials become thoroughly decomposed; carrying out deodorizing and removing water; and carrying out granulation to obtain the granular biological organic fertilizer containing medium trace element chelates of humic acid. The fertilizer has a complete range of nutrient elements and can fully satisfy needs of a crop for a fertilizer during growth.

The invention discloses a vegetable organic fertilizer and a preparation method thereof. The vegetable organic fertilizer comprises the following raw materials in parts by weight: 32-47 parts of stalks and leaves of plants, 28-35 parts of urine and feces of humans or animals; 22-31 parts of green fertilizer, 12-17 parts of humic acid fertilizer, 8-13 parts of saccharides, 0.5-1.2 parts of a leavening agent, and 2.3-4.3 parts of a soil conditioner. The vegetable organic fertilizer disclosed by the invention is capable of improving the fertilizer retaining and water holding capacity of soil, promoting the decomposition and transformation of organics, and improving the quality, the yield and the aftereffect of vegetables; with high temperature sterilization and staging fermentation, the nutrient loss of the organic fertilizer is less in the preparation process, and the occurrence rate of the pest and disease damage of vegetables is effectively reduced.

The invention discloses a wood-vinegar-containing biological compound fertilizer. The biological compound fertilizer is mainly prepared from the following raw materials in parts by weight: 10-15 parts of microbial inoculant, 20-30 parts of urea, 5-10 parts of diammonium phosphate, 10-20 parts of potassium chloride, 4-8 parts of calcium magnesia phosphate fertilizer, 10-15 parts of biochar, 1-3 parts of nano titanium dioxide, 0.5-1.5 parts of zinc sulfate, 0.2-1 part of copper sulfate and 2-5 parts of wood vinegar. The biological compound fertilizer is capable of enhancing the utilization ratio of the fertilizer, saving the raw materials and increasing the crop yield, and is also capable of supplying comprehensive nutrients required by crop growth, regulating plant growth and development, killing and resisting bacteria, expelling pests, effectively lowering the disease and pest morbidity and reducing the pesticide use.

The invention discloses a compounded medium for Cyclobalanopsis glauca container seedlings, which belongs to the technical field of forest seedling cultivation. The medium can be prepared through the following steps: carbonized rice husks, perlite and peat are mixed into a preformed medium according to the volume ratio of 25 to 35:25 to 35:35 to 50; according to that the mixture ratio of nutrient content of N:P2O5:K2O:Fe:Zn is 14 to 16:3 to 5:3 to 5:0.2 to 0.35:0.1 to 0.25, slow-release nitrogen fertilizer, slightly soluble phosphate fertilizer, potassium fertilizer, iron, zinc trace fertilizer which are sold in markets are made into a slow-release slightly soluble compounded fertilizer; and then the fertilizer and the preformed medium are made into the compounded medium in the proportion of 2 to 3 kg:1m<3>. The medium has the advantages that the medium is simple and reasonable in formulation, stable in quality, convenient to get materials, low in cost, lower in peat consumption, sufficient in fertility, long in fertilizer effect, capable of meeting the demand of Cyclobalanopsis glauca seedlings for nutrients, 23 to 33 percent lower than the prior medium formulation in prices and high in cost performance, and can be popularized and applied in the production of Cyclobalanopsis glauca container seedlings.

The invention provides a passion fruit planting method, and belongs to the technical field of agriculture planting. The planting method comprises the steps of cutting seedling-raising, garden selection and land preparation treatment, passion fruit seedling transplanting, shed frame building, shaping and pruning, fertilizer and water management and pest and disease damage controlling. For cutting seedling-raising, a soilless cutting seedling-raising mode is adopted for seedling raising, and a soilless substrate is obtained by fermenting brewer's grain, pig manure, bagasse, coconut shells, potassium fulvic acid, pumpkin vines, humic acid, composite strains, banana stems, polyacrylamide and dried pine needles and then adding inorganic nutrient substances. Accordingly, by strengthening management in the seedling raising stage, the passion fruit seedlings which are high in survival rate, robust in growth and high in disease-resistant capacity are obtained, the planting cost in later period can be lowered, and the overall production cost of passion fruits is lowered.

The invention discloses a method for directly preparing activated carbon in waste acid. The method comprises the following steps: biomass raw materials or organic matter raw materials are smashed, the smashed biomass raw materials or organic matter raw materials are mixed with an acid solution, reaction is carried out under a certain temperature, and solid-liquid separation is carried out, so that a solid product and a filtrate are obtained; the solid product is repeatedly washed with water until a neutral property is achieved and sulfate ions do not exist, and suction filtration and drying are carried out, so that the activated carbon is obtained, and the filtrate is purified industrial sulfuric acid. According to the invention, high temperature is not required, the obtained activated carbon is dust-free activated carbon, and the obtained flexible and elastic activated carbon with high water absorbability can be widely applied to the industries of purification, decolorization, adsorption, filtration aiding, carriers, a conditioner and the like. The method is extremely wide in raw material applicability, can be used for purifying waste sulfuric acid, and can purify industrial waste acid into industrial-grade sulfuric acid.

The invention provides a lemon planting method, belonging to the technical field of agricultural planting. The method comprises cutting culture, orchard site selection and soil preparation treatment, lemon seedling transplanting, pruning and shaping, fertilizer and water management and pest control, wherein the step of cutting culture comprises the following substeps: adopting the way of soilless cutting seedling raising, in particular, preparing a soilless substrate and laying the 10-20cm thick substrate on a seedbed; clipping lemon branches of more than one year old, cutting the lemon branches into 12-16cm long lemon branch sections, only reserving 2-3 leaves and soaking the lemon branch sections with disinfectant fluid for 1-2 hours; digging planting holes in the seedbed on which the substrate is laid, inserting the soaked lemon branch sections into the planting holes, backfilling and surrounding the planting holes with the soilless substrate and finally pouring water over the lemon branch sections and mulching the lemon branch sections. The planting method can achieve the effects of increasing the cutting survival rate and improving the soil fertility of lemon planting sites, thus achieving high yield of lemons.