399 results about "Nitrogen fertilization" patented technology

The invention relates to a saline-alkali soil fertilizer and a preparation method thereof. The saline-alkali soil fertilizer comprises decomposed coal, microorganisms, farmyard manure, straw, ardealite, ferrous sulfate, distillers' grains, a nitrogenous fertilizer, a phosphatic fertilizer and a potash fertilizer, wherein the microorganisms comprise nitrogen-fixing bacteria, phosphate solubilizing bacteria, potassium bacteria, fermentation bacteria and photosynthetic bacteria. The preparation method comprises the following steps: S1, mixing straw with farmyard manure, adding ferrous sulfate and the fermentation bacteria for fermentation; S2, adding ferrous sulfate, decomposed coal, microorganisms, ardealite and distillers' grains into the mixture in the S1, mixing and pelleting, so as to obtain fertilizer granules; 3, uniformly mixing and stirring the granules obtained in the S2 with the nitrogenous fertilizer, the phosphatic fertilizer and the potash fertilizer, so as to obtain the saline-alkali soil fertilizer. By adopting the fertilizer, the saline-alkali soil can be effectively reformed.

The invention discloses a straw carbon matrix biological organic fertilizer and a preparing method. China is the largest fertilizer importing country and the largest nitrogenous fertilizer producing country in the world, and has 7% of arable land on earth, but usage amount of fertilizers and pesticides is 35% of global total amount, and yearly needed amount of fertilizers are 150,000,000 tons. The utilization ratio of fertilizers in China is only 35%-45%, the balance is fixed or leached by soil, causing environmental problems of water body pollution, lake eutrophication and the like. The straw carbon matrix biological organic fertilizer is prepared from, by weight, 60-70 parts of a compost raw material, 25-30 parts of straw carbon of a microbial agent with an adsorption function, 2-5 parts of zeolite powder, 2-5 parts of bentonite and 0.5-1 part of a binder. The straw carbon matrix biological organic fertilizer is applied to the field of bio-fertilizers and green planting.

The invention relates to an application method of shenqinmycin in controlling crop diseases and a product of shenqinmycin. Shenqinmycin has the advantage of substantially improving the root rot and basal decay capability of crops. The application method concretely comprises the following steps: uniformly mixing shenqinmycin original drug with a nitrogenous fertilizer, a phosphate fertilizer and a potash fertilizer to obtain a mixer; and applying the mixer to the crops. The prouct has protruding control effects on crop root rot and basal decay, and the effective rate improves by more than 10% than the effective rate of individually applying shenqinmycin. The product has a wide purpose in agriculture, allows problems of the crop root rot and basal decay caused by planting same crops all year round to be solved, and has substantial economic benefits and environmental protection benefits.

The invention discloses application of a rice nitrate transporter NRT1.1B in enhancing nitrogen utilization efficiency of plants. The protein NRT1.1B is disclosed as Sequence 2 in the sequence table, and can be used for enhancing nitrate content of plants or enhancing nitrate transport capacity of plants, thereby enhancing the nitrogen utilization efficiency of the plants. The experimental result proves that when the nitrate transporter NRT1.1B in the rice is overexpressed to obtain the transgenic strain, the nitrate content is obviously enhanced, which indicates that the nitrate transporter NRT1.1B has important application potential in enhancing nitrogen utilization efficiency. The invention provides a new way for culturing crops with high nitrogen fertilizer utilization ratio.

The invention relates to a nitrogen-reduction fertilizing method capable of improving the utilization rate of flue-cured tobacco nitrogenous fertilizers in a rainy and smoky area, The nitrogen-reduction fertilizing method is characterized by uniformly applying a basal fertilizer to small holes on the day when the flue-cured tobaccos are transplanted, wherein the basal fertilizer is prepared from organic fertilizers of decomposed cake fertilizer and decomposed pig manure, an inorganic fertilizer potassium nitrate and a flue-cured tobacco special compound fertilizer containing 13% of N, 9% of P2O5 and 14% of K2O and superphosphate. When tobacco leaves completely cover the tobacco ridges and positions for digging ponds and fertilizing planted tobaccos, and water drip lines at the periphery of the flue-cured tobacco are outside the position for fertilizing basal fertilizer to the small holes, the steps of film uncovering, earthing up and top dressing can be carried out; potassium nitrate and potassium sulfate are utilized for the third top dressing in the manner of spraying fertilization, less amount and frequent times; and the total amount of the basal fertilizer and the top dressing of inorganic fertilizer nitrogen is reduced by 45-55% according to local routine dosage. By the invention, under the conditions that the absorption of the flue-cured tobacco nitrogen is not inhibited substantially and the yield and the quality of the flue-cured tobacco are not reduced, the utilization rate of the flue-cured tobacco nitrogenous fertilizer is improved by 30-60% in comparison with the traditional federalization, and the agricultural utilization rate of flue-cured tobacco nitrogen is improved by 61-83% compared with the conventional fertilization, therefore, the nitrogen-reduction fertilizing method has bright application prospect in the south high temperature rainy and smoky areas, such as Guangdong province, and the like.

The invention provides a fertilizer special for eucalyptus and a fertilizer application method. The fertilizer special for the eucalyptus is characterized in that: a eucalyptus base fertilizer consists of the following fertilizers in percentage by mass: 12 to 30 percent of nitrogen fertilizer, 55 to 70 percent of phosphate fertilizer, 8 to 20 percent of potassium fertilizer, 0.5 to 2 percent of boron fertilizer and 0.2 to 0.5 percent of zinc fertilizer; and a eucalyptus additional fertilizer consists of the following fertilizers in percentage by mass: 20 to 35 percent of nitrogen fertilizer, 50 to 65 percent of phosphate fertilizer, 10 to 30 percent of potassium fertilizer, 0.5 to 2 percent of boron fertilizer and 0.2 to 0.5 percent of zinc fertilizer. The fertilizer special for the eucalyptus contains nitrogen, phosphorus, potassium, boron, zinc, calcium and magnesium which are essential to the growth of eucalyptuses, reduces the waste of fertilizers caused by volatilization, loss and soil absorption and fixation, increases the utilization rate of the fertilizers, improves the growth amount and physiological disease resistance of the forest, develops the fast-growing advantage of the eucalyptuses, realizes the cultivation of short-cycle industrial raw material forest of the eucalyptuses, greatly shortens the circulation period of industrial raw material forest of the eucalyptuses, can also remedy mineral substances and nutrient components which are taken away by hacking the eucalyptuses at the same time to ensure the nutrient balance of the soil, brings maximum economic benefits with minimum fertilizer investment, and realizes the sustainable production of eucalyptus planting areas.

The invention discloses a whitish soil improvement method. The method includes the steps that (1) rice straw returning or wheat straw returning is conducted on carclazyte soil; (2) after straw returning is conducted, organic fertilizer is applied in a combined mode, and nitrogenous fertilizer is added to adjust the C / N ratio of straw to range from 20:1 to 30:1; (3) deep tillage is conducted on the soil to enable silt on the surface of the soil and heavy loess at the bottom to be blended fully; (4) after deep tillage is conducted on the soil, irrigation field retting is conducted; (5) after deep tillage and field retting are conducted on the soil, rice base fertilizer is applied; (6) the steps are repeated many times, and the depth of deep tillage is increased year by year every time deep tillage is conducted. According to the method, the rice per unit yield and soil fertility are improved, the soil structure is improved, the cation exchange capacity of the soil is improved, and the community structure of soil microorganisms and the soil enzyme activity are affected.

The invention discloses a long-acting water-soluble fertilizer and a preparation method thereof. The long-acting water-soluble fertilizer contains a water-soluble nitrogenous fertilizer, a water-soluble phosphatic fertilizer, a water-soluble potash fertilizer, a biochemical fulvic acid potassium, 3, 4-dimethylpyrazole phosphate, chitosan oligosaccharide and 4-amido-1, 2, 4 triazole. The fertilizer has the advantages that the utilization rate of nitrogen phosphorus and potassium nutrients is increased, the effective period of the fertilizer is prolonged, the useless accumulation of phosphorus and potassium nutrients in soil and accumulation of nitrate in soil and fruit can be reduced, the soil is conditioned, and the disease resistance of plants is improved. The long-acting water-soluble fertilizer is simple in production process, low in cost, and beneficial for wide popularization.

The invention discloses an environmental friendly composite material which can control the loss of nitrogenous fertilizer. Raw material components consist of active mineral soil, polymer material and monoammonium phosphate. The active mineral soil is attapulgite, sepiolite, fly ash or other similar low-cost active material or any mixture thereof. The polymer material is chitosan, polyacrylamide, plant starch and natural degradable environmental friendly material or any mixture thereof, which has the effect of flocculation and adsorption. The composite material is consistent with the immobilized phase of nitrogen and fertilizer needed by plant growth. Nitrogen is absorbed by crops fully, which reduces the usage amount of fertilizer and moreover reduces the risk of loss or volatilization for nitrogen. The material used by the method is environmental friendly and can not cause environmental pollution or health problem which includes the harms to wild animals, beneficial insects or plants.

The invention discloses a double-membrane double-control slow release fertilizer. The slow release fertilizer is prepared by wrapping urea by using sulphur and further wrapping by using a layer of soluble resin, and mixing the urea of a double-membrane material with a stable composite fertilizer, wherein the fertilizer nutrient release period can be 130 days, the release rate of 25 days can be 30%, and the release rate of 120 days can be more than 85%; the urea wrapped by double membranes is used for controlling the release of a urea state nitrogenous fertilizer, the release of the nitrogenous fertilizer is controlled and the utilization rate of a phosphatic fertilizer is increased through the stable fertilizer; the slow release fertilizer is longer and slower in action; for ordinary crops, the effect that the fertilizer is applied once without further fertilization is achieved; the utilization rate of the nitrogenous fertilizer is increased by 15%; and the utilization rate of the phosphatic fertilizer is increased by 12%. The urea inhibition ratio is 30%, the nitrogenous fertilizer nitration inhibition ratio is 25%; the wrapping membrane material can be degraded within 150 days; and meanwhile sulfur element is supplemented for the soil.

The invention discloses water-retention slow-releasing carbon-based compound fertilizer and belongs to fertilizer used in agriculture and forestry production. The carbon-based compound fertilizer is prepared from the ingredients of nitrogenous fertilizer serving as the major ingredient, phosphatic fertilizer, potash fertilizer and trace elements in the fertilizer and filling powdered carbon. The preparing method comprises the following steps of: mixing the ingredients uniformly to serve as powder material or pelletizing the powder material of the mixed powder and bagging for supplying the market. According to the invention, agriculture and forestry plant waste and the like are carbonized for preparing carbon powder, so that the utilization of waste materials can be achieved, the income of farmers can be increased, and the environment can be protected. Most importantly, filler such as mountain flour is replaced by the carbon powder so that the efficacy of the fertilizer can be improved, significant process can be made, and an unexpected effect can be achieved. According to the invention, the basic one-water double-fertilizer requirement in agricultural production can be met. As the carbon powder has strong permeability and a moisture-feed circulative-absorbing water-retention function, oxygen in the fertilizer can be slowly released, the use ratio of the fertilizer is improved, and essential condition for plant growth is met.

The invention provides a compound fertilizer for radix angelicae and radix bupleuri. The compound fertilizer is prepared by comprising the following steps of: selecting multiple organic fertilizers of plant ash, pig manure, saw dust, straw, corn flour, soybean cakes and the like; fermenting so as to kill pathogenic bacteria and promote partial organisms to decompose to improve the fertilizer effects; combining and utilizing various substances of sea algae extracts and formulas so as to lower the premature seeding rate of radix angelicae and improve the content of imperatorin in radix angelicae and saponin a, d in radix bupleuri; regulating the carbon nitrogen ratio by a certain amount of nitrogenous fertilizers, phosphatic fertilizers and potash fertilizers, thereby obtaining a special nutritious compound fertilizer for culturing radix angelicae and radix bupleuri three-dimensionally. The compound fertilizer designed by the invention can meet the differences of different nutrition requirements and different growth seasons of radix angelicae and radix bupleuri purposefully, improves the medicinal material quality, and has obvious economical benefit. The compound fertilizer for radix angelicae and radix bupleuri provided by the invention is the special nutritious compound fertilizer for culturing radix angelicae and radix bupleuri three-dimensionally, and can be used for lowering the premature seeding rate of radix angelicae, improving the content of imperatorin in radix angelicae and saponin a, d in radix bupleuri, and improving the medicinal material quality of radix angelicae and radix bupleuri.

The invention provides a slow-release fertilizer special for saline alkali soil improvement, and the fertilizer comprises the following components by weight: 18%-20% of large granular urea, 35%-40% of slow-release coated urea, 12%-15% of an organic granulated fertilizer, 15%-18% of monoammonium phosphate and 12%-15% of potassium sulfate. The low-release fertilizer special for saline alkali soil improvement combines nutrient slow release and salt and alkali resistance, effectively reduces alkalescence of soil, effectively increases the aggregate structure of the soil, increases fertilizer retention properties of the soil, increases soil porosity, reduces soil bulk density, changes the saline alkali soil compaction structure, creates the good soil environment for crops, is comprehensive in nutrient and lasting in fertilizer efficiency, and reduces environmental pollution caused by fertilization, the nitrogen utilization rate can reach more than 45%, the input total amount of the fertilizer can be reduced, low carbon production can be maintained, and the slow-release fertilizer is conducive to the improvement of the worsening ecological environment. The slow-release fertilizer has the advantages of simple preparation method, is suitable for industrial production, and has great application value.

The invention provides a preparation method of high-temperature compost. The method comprises the steps that 900-1300 parts of crop straw, 5-40 parts of nitrogenous fertilizer and 1.5-6 parts of microbial agents are taken; the crop straw is composted into a straw pile; 700-900 parts of water is evenly injected from the top of the straw pile; 300-400 parts of water is evenly injected from the top of the straw pile again after 2-6 days; the nitrogenous fertilizer and the microbial agents are dissolved in 30-50 parts of water, an aqueous solution of the nitrogenous fertilizer and the microbial agents is prepared, and the aqueous solution of the nitrogenous fertilizer and the microbial agents is evenly sprayed on the straw pile; the the straw pile is covered with plastic cloth and the periphery of the straw pile is compacted, and the high-temperature compost is prepared after the straw pile is fully rotten. According to the compost preparation method, two-time water injection is adopted, the defects that water absorption difficulty of the crop straw is high, and the water content needed by microorganism reproduction is difficult to achieve are overcome, the prepared high-temperature compost is high in rotten speed, and the rotten degree is high.

The invention provides a multifunctional microorganism organic fish guano. According to a prescription, the multifunctional microorganism organic fish guano comprises the following components in percentage by weight: 25 to 30% of high-protein organic matters, 2 to 5% of compound microorganism bacteria, 8 to 10% of amino acid, 5 to 8% of fulvic acid salt, 25 to 30% of inorganic nitrogenous fertilizer, 15 to 20% of inorganic phosphate fertilizer, 2 to 4% of inorganic potassium fertilizer, 0.5 to 2% of trace elements, and 3 to 6% of zeolite powder; the high-protein organic matter are mainly prepared from poultry excrements, agricultural wastes and rot promoting bacteria by the fermenting process. The preparation method is characterized in that the components as shown in the prescription are overturned and fermented, uniformly mixed, crushed and sieved to prepare the fish guano. The fish guano brings complete and rich nutrition for fish, inhibits fish diseases, improves water quality as well as increases dissolved oxygen in water.

The invention provides a preparing and application method of an Arundo donax biological charcoal serving as a nitrogenous fertilizer synergist. The preparing and application method comprises the steps of: harvesting mature-stage Arundo donax, shearing into small segments of 2-5cm, and air-drying for later use; heating the Arundo donax segments to 350-650 DEG C at a heating rate of 1-20 DEG C / min under the protection of inert gas at a flow rate of 200-500mL / min for charring for 1-6h; after charring is finished, cooling to room temperature under the protection of inert gas; crushing prepared biological charcoal into particles of 1-5mm, sealing, and storing in a drying place for later use; and applying the crushed biological charcoal to agricultural soil at a ratio of 0.1-8%, and sufficiently mixing to be uniform, wherein the soil moisture content is kept at 60-80%. The preparing and application method is simple in operation, low in cost and significant in effect, and is suitable for the situation of China; and by using the method, the nitrogenous fertilizer absorption of the crop is promoted, the nitrogenous fertilizer loss is reduced and the nitrogenous fertilizer utilization efficiency of the crop is improved.

The invention discloses a ridging, mulching and rain collecting planting method for alfalfa in dry-farming areas. The ridging, mulching and rain collecting planting method for alfalfa in dry-farming areas comprises the following steps of improved variety selection, wherein a drought-resisting and saline-alkaline-tolerant variety and a high-yield variety suitable for the local land are selected; seed processing, wherein after the seeds are cleaned and impurities are removed, the seeds are aired for 1-2 days in the sunlight; planting soil preparation, wherein the soil is prepared in a fine mode, weeds are removed, the soil is ploughed as deep as 25-30 cm until the soil has no obvious clods and is loose upwards and solid downwards; base fertilizer application, wherein phosphorus and potassium compound fertilizer or organic fertilizer serves as the base fertilizer, and a little nitrogenous fertilizer is applied; sowing in proper time, wherein the alfalfa in dry-farming areas of the northwest of Shanxi province is suitable for being sown in the first twenty days of April, but the sowing of the alfalfa needs to accord with the local conditions so that the seedlings can emerge in order. The ridging, mulching and rain collecting planting method for alfalfa in dry-farming areas is a drought-resisting, moisture-increasing and yield-increasing technology integrating ridging, precise sowing in lines, mulching and agricultural water-saving flow collection, can obviously reduce water evaporation caused by wind erosion as the ridging planting method is adopted, improves low temperature, and improves the emergence rate of seedlings and the biological yield of alfalfa in the first year.

The invention discloses composite microbial fertilizer based on organic wastewater production. The composite microbial fertilizer is prepared from, by weight, 10-15 parts of complex microorganism bacterium liquid, 30-50 parts of liquid organic carbon, 3-5 parts of water-retaining agent, 1-6 parts of nitrogenous fertilizer, 1-6 parts of phosphatic fertilizer, 0-5 parts of potash fertilizer and 2-5 parts of medium trace element fertilizer. The invention further discloses a production process of the composite microbial fertilizer. The composite microbial fertilizer has the advantages of being quick in effect, diversified in function, resistant to diseases, capable of repairing the soil microenvironment, environmentally friendly and the like.

The invention discloses a cotton no-tillage summer direct seeding cultivation method. The method comprises the steps of (1) variety and seed selection, (2) seeding time, (3) chemical weed control, (4) seedling management, (5) chemical regulation, (6) the fertilizing amount and fertilizing method, and (7) ethephon ripening acceleration. In the step of chemical weed control, after planting, preemergence herbicide is evenly sprayed in each 667 m<2>, and weeds are sealed. In the step of seedling management, after cotton seedlings come up out of the ground, a half amount type Bordeaux mixture is sprayed. In the step of chemical regulation, mepiquat chloride is sprayed at the bud stage, at the initial bloom stage and after topping stage respectively, and the dosage and the spraying frequency of the mepiquat chloride are adjusted according to the weather condition, soil fertility, field density and cotton plant growth vigor. In the step of the fertilizing amount and fertilizing method, nitrogen of 12-14 kg is applied in each 667 m<2>, the high dosage is used in cotton which is sowed before May 20th, and the low dosage is used in cotton which is sowed after May 20th. In the step of ethephon ripening acceleration, ethephon is sprayed, and the cotton boll opening rate can be improved by more than 20%. The method is easy to implement, operation is simple and convenient, and the effects of lowering cotton production cost, stabilizing or improving cotton yield, increasing cotton planting benefits and reducing environmental burdens are achieved.

The invention relates to a beneficial biological bacterium fermented microbial organic fertilizer to solve the problem of harms of organic wastes to the environment. The beneficial biological bacterium fermented microbial organic fertilizer is prepared through fermenting raw materials by beneficial biological bacteria, and the raw materials comprise, by weight, 10-15% of active humic acid, 3-9% of a nitrogenous fertilizer, 1.5-4.5% of a phosphate fertilizer, 1.5-4.5% of a potash fertilizer, 1-3% of a boron fertilizer, 0.5-1.5% of a silicon fertilizer, 0.3-0.7% of an iron fertilizer, 0.3-0.7% of a zinc fertilizer, 0.3-0.7% of a copper fertilizer, 0.2-0.4% of a magnesium fertilizer, 0.2-0.4% of a manganese fertilizer, 0.3-0.7% of a calcium fertilizer, 0.3-0.7% of a molybdenum fertilizer, 0.3-0.7% of a vanadium fertilizer, and the balance of an organic matter ferment material (metered by dry weight). The beneficial biological bacterium fermented microbial organic fertilizer has the advantages of low production cost, soil improvement, improvement of the quality of crop products, improvement of the output of the crops, promotion of development of the agriculture with Chinese characteristics, high harmless degree, absorption facilitation, slow synergism, yield and income increase, soil fertility raising, and balanced nutrition, and is helpful for naturally decomposing various beneficial components in soil after being applied in order to make the decomposed beneficial components be absorbed and utilized by plants.

The invention discloses a nitrogen balance spectroscopy-based wheat spring nitrogenous fertilizer application method, and a construction method of a nitrogen topdressing amount model thereof. The model construction method comprises the following steps: 1, determining a wheat target output and a yield increase coefficient; 2, determining the spectrum of wheat in a nitrogenous fertilizer blank area; 3, determining the spectrum of wheat in a spring sufficient nitrogenous fertilizer application area; 4, screening the equivalent expression form between a vegetation difference index and an optimized total nitrogen application amount; and 5, constructing the nitrogen topdressing amount model. The nitrogenous fertilizer application method comprises the following steps: A, acquiring information; B, determining the yield increase coefficient; C, determining the optimized total nitrogen application amount for the target output; D, determining the equivalent weight required by the difference index of per unit of vegetation; and E, calculating the nitrogen topdressing amount. A suitable nitrogenous fertilizer space-time optimization scheme is determined according to real-time on-site obtained wheat crop growth conditions, so the nitrogenous fertilizer utilization rate is improved on the premise of guaranteeing the output of crops, the application method adapts to inevitable requirements of development of the modern agriculture, and technical support is provided for technical development of accurate agriculture.

The invention belongs to the technical fields of crop nutrition diagnosis and fertilization, and in particular relates to a fertilizing method based on nitrogen nutrition nondestructive detection of winter rapes. The fertilizing method is characterized by comprising the following steps: testing a SPAD value by selecting the key growing period and time of the rapes, determining the sensitive leaf position and leaf part subjected to the nitrogen nutrition detection, establishing a critical leaf SPAD value detection method, carrying out real-time nitrogenous fertilizer topdressing by virtue of obtained detection values, and the like. The fertilizing method disclosed by the invention can be used for evaluating and detecting the nitrogen nutrition sufficiency and deficiency level of the rapes relatively accurately; and compared with a conventional laboratory chemical analysis method, the method, as a nondestructive rape nitrogen nutrition status detection and fertilization method, is real-time and rapid.

The invention discloses a rebuilding material for a high and cold pasturing area extremely deteriorated meadow. Calculated by the weight used in each mu, the formula of the rebuilding material is that 2.5kg elymus nutans with purity larger than 95%, 1.5kg elymus sibiricus with the purity larger than 95%, 1kg cold area bluegrass with the purity larger than 95%, 500kg cattle manure and sheep manure, 20kg calcium superphosphate and 20kg urea. The rebuilding material for the high and cold pasturing area extremely deteriorated meadow has the advantages that the formula and a method of the rebuilding material are offered, compared with other similar inventions, seed resources input is high, continuity and protective property of seeding are guaranteed, a community structure is reasonable and high in stability after vegetation is built, manure is sufficient, weed generation can be controlled in a short time, seeds and the manure can be kept in soil stably after being spread, and use of the urea for twice guarantees that sufficient nitrogenous manure is offered in a grass growing season.

A special fertilizer for banana tree features that the ratio of N, P and K is 1:0.3:1.5 and the ratio of N:P2O5:K2O is 14:4:18, the total nutrients content is 36. Its advantages are high fertility, high dissolving speed, low cost and increasing yield of banana by 20-30%.

The present invention belongs to the field of soil and fertilizer, and is especially one kind of organic material comprising turf and humate and its preparation process. The organic material is granular organic fertilizer prepared through spraying humate to turf and granulating, the turf is grass peat with medium decomposition degree and ash content below 50 %, and the humate is potassium humate, sodium humate or ammonium humate from turf, lignite or weathered coal. The organic material of the present invention can increase organic matter content in soil, improve soil aggregate structure of and proportion among solid phase, liquid phase and gas phase in soil, promote plant growth, raise potash fertilizer and phosphate fertilizer utilizing rate and raise agricultural product quality, has other advantages, and is suitable for various types of soil.

The invention relates to a nano-biological organic-inorganic compound fertilizer, which comprises the compositions by weight: 40-48 percent of biological organic fertilizer, 11-18 percent of nitrogenous fertilizer, 16-20 percent of phosphate fertilizer, 8-12 percent of potassium fertilizer, 10-15 percent of bentonite and 0.1-0.15 percent of nanometer type granulating adhesive. Sauce pomace is fermented through azotobacter, potassium bacteria and phosphorus bacteria, thus obtaining the biological organic fertilizer. Effective components in the fertilizer are counted by weight: organic matter is more than or equal to 38 percent, nitrogen plus phosphor plus potassium is more than or equal to 15 percent and number of beneficial microorganisms is more than or equal to 100 million of every gram fertilizer. The invention also relates to a preparation method of the nano-biological organic-inorganic compound fertilizer. The fertilizer of the invention changes waste into valuables, has high utilization ratio of the fertilizer, improves soil structure, adjusts the environment of microorganism, strengthens stress resistance of crops and has good effect of disease and pest resistance; the quality of the invention is comparable to farmyard manure and the invention is an ideal fertilizer for planting uncontaminated vegetables.

The invention belongs to the field of fertilizers and discloses a synergistic loss-control agent of nitrogenous fertilizers and a production method thereof. The synergistic loss-control agent is composed of a nitrogen stabilizer, a bio-surfactant, biological fermentation compound amino acid, a plant growth regulator, a soil structure modifier and water, wherein the nitrogen stabilizer can control nitration, decomposition and loss of ammonium nitrogen; the biological fermentation compound amino acid can absorb and chemically combine the ammonium nitrogen and reduce volatilization loss; plant growth regulator, the plant growth regulator can regulate plant growth and promote plants to absorb nitrogen, phosphor, potassium and microelements; the soil structure modifier can loosen soil and add granular structures of the soil; and the bio-surfactant can promote the plants to absorb nutrients and improve the utilization rate of the nutrients, therefore loss of phosphate is reduced, and effectiveness of the phosphate fertilizers is improved. Potting and field fertilizer efficiency tests show that the utilization rate of the phosphate can be improved obviously and the yield of crops and income can be increased through the synergistic loss-control agent.

The invention relates to a method for recommending application rate of crop nitrogenous fertilizers based on soil nutrient balance. The method is characterized in that the field fertilizer test is carried out to establish nitrogenous fertilizer application rate X and crop nitrogen harvest index Y; the functional relation is established by software; according to the established functional relation, the value of the crop nitrogen harvest index Y is caused to be within the interval of 0.863-1; afterwards, the value of the nitrogenous fertilizer application rate X is worked out by backwards calculation and the value is used as the recommended application rate of crop nitrogenous fertilizer for the crop in the coming year. The method has the advantages that addition of the extra field fertilizer test is not needed and only rearrangement of the initial data is needed based on the launched soil testing and formulated fertilization field fertilizer test. As shown in the fertilizer response function curve of crop yield and fertilizing amount, the high yield region of the crop is a platform with very wide fertilizing amount range, the change of the fertilizer use level within the range of the platform exerts little influence on the yield. The recommended application rate of crop nitrogenous fertilizer of the invention can balance the soil nutrient and is beneficial to sustainable development of agriculture.

The invention discloses a method for preparing a complete nutrient bioorganic fertilizer from wastes of the biological environment-friendly pig-raising industry and a product, belongs to the technologies of innocent treatment and recycling of agricultural solid wastes, and effectively solves the problem that the wastes of the biological environment-friendly pig-raising industry cannot be treated. The method comprises the following steps of: mixing the wastes of the biological environment-friendly pig-raising industry and inorganic nitrogen fertilizer, phosphate fertilizer and potassic fertilizer in a ratio of (150-180):(10-15):(3-5):(9-12), and performing primary fermentation; and performing secondary fermentation with medium and micro elements (magnesium, iron, boron, molybdenum and manganese) in a ratio of 0.5-1.5 percent (based on dry weight), fully composting, and granulating to obtain the complete nutrient bioorganic fertilizer. The product has the total nitrogen content of 3.62 percent, the total NPK nutrient content of over 9.0 percent and the total medium and micro element content of 2.43 percent. Experimental results show that: after the fertilizer is applied to crops such as wine grapes, Chinese wolfberries, protected cucumbers and protected tomatoes, the yield is increased by 5 to 10 percent compared with that obtained by using simple-substance fertilizers in the same nutrient using amount; moreover, the product quality is obviously improved.