155results about How to "Improve fertilizer use efficiency" patented technology

The invention discloses a liquid compound microbial fertilizer containing polyglutamic acid, and a preparation method and an application thereof, and belongs to the field of compound microbial fertilizers. Bacillus megaterium, bacillus thuringiensis and bacillus amyloliquefaciens are prepared into a bacteria liquid by liquid fermentation, and then the bacteria liquid is mixed with compound nutrients and a gamma-polyglutamic acid according to the mass ratio of 1:1:0.05-0.1 to be prepared into the efficient liquid compound microbial fertilizer. On the basis of good phosphorus dissolving capability of the bacillus megaterium, good insect resistance of the bacillus amyloliquefaciens and good organic matter degrading capability of the bacillus amyloliquefaciens, the purposes of more excellent fertilizer efficiency and lower water consumption are achieved under the characteristics of water retention, fertilizer preservation, and no environmental pollution of the gamma-polyglutamic acid, therefore, the scientific and reasonable matching of the compound fertilizers is formed.

An agricultural and horticultural plant growth zeolite-based composition containing a particular zeolitic (i.e., zeolite-containing) material, termed “Yenomite,” is disclosed. This composition exhibits a collection of outstanding advantageous properties in agricultural and horticultural applications. Yenomite, which is found in a particular area of Jordan, comprises primarily phillipsite as the zeolite, optionally in conjunction with palagonite. Yenomite provides surprisingly better results as compared to when other zeolite-based soil amendment compositions, even when it is used as the mined material that has been only subject to a grinding or crushing operation to a desired mesh size. As mined, Yenomite contains very low levels of undesired Na+ ions. It can, therefore, be used without being subjected to a washing operation to remove these ions. Yenomite also possesses a very high CEC. These characteristics, and others, make Yenomite uniquely suitable to use in any agricultural or horticultural operation.

The invention relates to antibacterial peptide active organic fertilizer and a preparation method thereof and belongs to the technical field of agricultural fertilizer. The fertilizer consists of livestock and poultry excrement, silkworm excrement and a microbial fermenting agent. The preparation method for the fertilizer comprises the following steps: 1) weighing the livestock and poultry excrement, the silkworm excrement and the microbial fermenting agent according to the weight ratio, mixing, adjusting the water content of the mixture to 55 to 65 percent, adjusting the pH value to be 5.0 to 8.0, and adjusting the C / N value to be 20 to 30; 2) performing primary stacked fermentation; 3) performing secondary stacked fermentation; and 4) screening the fermented organic fertilizer obtained in the step 3) to remove impurities, pelleting, shaping, discharging, drying, cooling, removing dust, detecting and packaging to obtain the antibacterial peptide active organic fertilizer. Compared with control, the antibacterial peptide active organic fertilizer can increase the yield by 20.1 to 25.3 percent when applied in the fields of fruits, vegetables, grain and oil, flowers and trees, tea and the like.

The invention relates to a special controlled release fertilizer and preparation method for rice, belonging to technical field of slow release and controlled release fertilizer. The invention is characterized in that the invention remix accurately the 5% and 6% of thermoplastic resin membrane urea, the sulfur membrane urea with the potassium chloride compound fertilizer, the potassium chloride and the zinc sulfate according to fertilizer requirement of the rice to form the special formulation of controlled release fertilizer for rice. The invention has the advantages that the nutrient release law of the controlled release fertilizer is matched with the nutrient absorption law of the rice, the controlled release fertilizer costs can be decreased, furthermore, after fertilizing once the controlled release fertilizer before transplanting of rice, no supplementary fertilizer is needed, the labor intensity and worker costs of farmer can be also reduced.

The invention discloses a biological carbon soil conditioner and a preparation method thereof. The biological carbon soil conditioner mainly comprises the following components in parts by weight: 40-60 parts of biological carbon, 10-25 parts of pumice and 20-45 parts of bentonite, wherein the biological carbon is obtained by performing anaerobic carbonization on at least one of crops straw, wooden meal, deadwood or deciduous leaves at the temperature of 300-1000 DEG C; and the biological carbon soil conditioner is prepared by the following the steps: mixing the raw materials, adding 15-35 parts of water by weight, stirring, extruding, pelletizing and packaging components. The invention can improve soil physicochemical property, enhance soil organic matter content and fertilizer utilization rate, and reduce carbon dioxide burst size.

The invention discloses horticultural long-acting and slow-release straw nutritional soil as well as a preparation method and a using method of nutritional soil substrate. In percentages by weight, the nutritional soil contains 20 percent of substrate and 80 percent of horticultural soil; the substrate contains 25 percent of perlite, 65 percent of rice straws or wheat straws, 2.0 percent of slow-release agent, 0.75 percent of calcined lime, 0.75 percent of straw well-rotten fungicide, 3.0 percent of nitrogenous fertilizer, 1.0 percent of pure phosphatic fertilizer, 1.75 percent of potassic fertilizer and 0.75 percent of microelement fertilizer; the preparation method of the substrate comprises the following steps: unbaling rice straws or wheat straws, putting under blazing sun for 3-4 daysfor sterilizing; crashing rice straws or wheat straws by a crasher into straw sections with the length of 0.8-1.2cm; and evenly mixing 25 percent of perlite, 65 percent of rice straws or wheat straws, 2.0 percent of slow-release agent, 0.75 percent of calcined lime, 0.75 percent of straw well-rotten fungicide, 3.0 percent of nitrogenous fertilizer, 1.0 percent of pure phosphatic fertilizer, 1.75percent of potassic fertilizer and 0.75 percent of microelement fertilizer to prepare the substrate, and packaging the substrate; and the using method of the nutritional soil comprises the following step: fetching 80 percent of horticultural soil and 20 percent of substrate in percentages by weight. The nutritional soil has no putrefactive odor and musty taste, synchronous straw fermentation rot and flower and plant growth as well as slowly-released nutritional ingredients, and keeps the activity and the self nutrient circulation for a long time.

The invention discloses a method for nitrogen regulation, weight loss and efficiency enhancement of double-cropping rice, which uses a hand-held chlorophyll meter (SPAD-502 type) to measure the SPAD value of the most sensitive leaf chlorophyll in the period when the rice leaf color is most sensitive to nitrogen . The nitrogen nutrient status of rice is understood through the leaf SPAD value, and then the actual SPAD value of rice is classified into the threshold range of rice leaf color. According to the amount of application required for each leaf color threshold, the corresponding nitrogen fertilizer is applied within the required fertilization range, so that the nitrogen nutrient of rice returns to the high-yield leaf color threshold range. Through this method, the determination of soil nutrient content in the early stage can be avoided, and the rice leaf color can be directly adjusted to make it within the high-yield leaf color threshold range. When rice is harvested, the rice yield will reach the local high-yield level, and the nitrogen use efficiency will increase by about 15%.

The invention relates to a rice biological fertilizer in the field of fertilizer manufacturing. A formula is as below: 71% of an organic fertilizer, 12% of nitrogen, 6% of phosphorus, 9% of potassium, 40 million / g of Lactobacillus plantarum and 2% of an additive. The organic fertilizer comprises sugarcane mud, fish meal and peanut in the ratio of 57:37:6. The additive comprises boron, magnesium and zinc in the ratio of 32:48:20. A production method of the rice biological fertilizer is characterized by comprising the following steps: 1) adding microorganisms in the organic fertilizer and carrying out fermentation; 2) crushing, adding nitrogen, phosphorus and potassium, and evenly mixing; 3) granulating and drying. The rice biological fertilizer contains organic fertilizer and beneficial fungi, is friendly to the environment, has functions of nitrogen fixation, phosphorus activation and potassium decomposition, enhances the fertilizer maintenance of soil and reduces plant diseases and insect pests; and the fertilizer is developed according to growth regularity of rice, can promote the growth of rice, improve quality and increase the yield by 15% by average, and has the value for popularization.

The invention belongs to the technical field of crop culture and discloses an integral fertilization method for corn and soybean relay intercropping. The integral fertilization method for corn and soybean relay intercropping provided by the invention comprises the following steps that: corns and soybeans adopt wide and narrow line planting, the corns are seeded from the late March to the early April in each year, and the soybeans are seeded in the early and mid June in each year; and the primary fertilization is carried out during the corn seeding, and then, the secondary fertilization is carried out in a position in the wide line of the corn with a distance being 15 to 30cm from the corn line in a corn large-horn period or in 7 to 10 days before the tasseling. The fertilization distance and the multi-nutrient matching are scientifically controlled, the three links: the corn additional fertilization, the soybean base fertilization and the soybean seeding are organically unified, the time space complementation utilization of the corns and the soybeans on the fertilizers is realized, the goal of fertilizing one season of corn fertilizers and utilizing the fertilizers by the corn and the soybean in two seasons is reached, the production cost is reduced, the yield of the corns and the soybeans and the utilization of the fertilizers are improved, and the income of farmers is increased.

The invention discloses a special root-inducing slow release high-efficiency fertilizer for double cropping rice and a preparation and application method thereof. The preparation method comprises the following steps: mixing and blending nitrogen fertilizer and compound synergist in a blender for 3-5 minutes to obtain root-inducing slow release high-efficiency nitrogen fertilizer; and then, continuing to mix with phosphorus fertilizer and potassium fertilizer for about 5 minutes to obtain the finished fertilizer, wherein the compound synergist is prepared by uniformly mixing the following materials in percentage by weight: 3.4-3.8% of borax (B), 2-2.5% of hydroquinone (HQ), 0.9-1.4% of dicyandiamide (DCD), 33-36% of silicon fertilizer (SiO2), 9-14% of polyaspartic acid (PASP), 31-38% of humic acid (HA) and 9-12% of phosphorus activator. The finished fertilizer is used as basal fertilizer to be completely applied after rice soaking and in the early rice transplanting stage, and no additional fertilizer is required for the later stage; the amount of applied fertilizer for early rice is 40-45 kg / mu; and the amount of applied fertilizer for late rice is 50-55 kg / mu. The fertilizer disclosed by the invention has the dual effects of promoting root growth and delaying nutrient release, can greatly improve the nutrient utilization ratio and rice yield, is convenient to produce and use, and has the advantages of high technical compatibility, low cost, environment friendliness and the like.

The invention discloses an extraction method of water-soluble humic acid. The method is characterized by comprising the steps of pickling raw humic acid powder to remove humic acid containing calcium ions and magnesium ions; adding sodium hydroxide for alkaline extraction; oxidizing with hydrogen peroxide; and enabling sodium hydroxide and hydrogen peroxide to react for 60 to 90min under a temperature of 80 to 90 DEG C and agitating at the same time until the final solution is at pH of 8 to 10 so as to obtain water-soluble humic acid. After being added with water-soluble humic acid produced by the method, the compound fertilizer is outstanding in color and luster, high in strength, applicable to topdressing of different crops at different seasons, and wide in applicable scope; nutrient elements integrate the functions of quick acting, long lasting and synergia, so that the effects of improving the quality of the crops, inhibiting soil-borne disease, improving stress resistance of the crops and prompting early-maturing of the crops can be realized; the effect of fertilizer on increasing yield is obvious, and the yield per mu is increased by more than 20% on year-on-year basis.

The invention provides a compound preparation for controlling plant diseases. The compound preparation consists of a bacillus spore and a trichoderma chlamydospore. The invention also provides a method for preparing the compound preparation and application of the compound preparation.

The invention relates to a culturing method for preventing and repairing citrus yellows. The method comprises the following steps: planting, cutting lateral roots, managing fertilization, remaining fruit quantitatively, and constructing a drainage and irrigation system, wherein the step of cutting the lateral roots is that a strip-shaped ditch is dug between plants or rows for cutting the lateral roots after the blossoms of citrus fell, and a root repair agent is sprayed and applied immediately after the lateral roots are cut; the step of managing the fertilization comprises fertilizing a post-blossom falling fertilizer heavily, spraying a leaf fertilizer, and applying an organic liquid fertilizer at a root, wherein the step of fertilizing the post-blossom falling fertilizer heavily is that 16 to 32 kilograms of self-made fertilizer is applied to each plant by combining deep plowing and soil improving after the lateral roots are cut; orchard wedding is combined when the fertilizer is applied, weeds, the fertilizer and soil are fully and uniformly mixed and then are backfilled into the strip-shaped ditch. The culturing method for preventing and repairing the citrus yellows provided by the invention has the advantages of simple method, high operability, good effects on preventing and repairing the citrus yellows and the like.

The present invention relates to a special fertilizer for a charry releasing soybean, which is characterized in that: the fertilizer comprises earthpea core grain carbon grain, ammonium phosphate, zinc sulfate, kalium sulphate as well as one or more than one types amongcarbamide, ammonium sulphate, borax and molybdenum. The present invention also relates to the produce method for the special fertilizer for a charry releasing soybean. The method is to use the character of the earthpea core grain carbon grain with multi-micro hole and strong absorbing ability combined with nitrogen, phosphor, kalium and the other nutrition components required by the growth of the soybean, and then uses a moist soil or clay as the cement compound to prepare the grain-shaped special fertilizer for a charry releasing soybean. The preparation process for the fertilizer is simple, economical and environment-protective with one-off use; the fertilizer can satisfy the requirement of the nutrient for the whole growth period for the soybean effectively; the utilization ratio of the fertilizer is higher with saving the energy and the cost; the fertilizer is adaptable to be widely popularized in the large-scale production for the soybean.

The invention relates to ecologic conditioner for salt-affected soil by the sea, and a preparation method and application of the ecologic conditioner. The ecologic conditioner comprises the following components by part by weight: 25 to 30 parts of exogenous beneficial microbial agent, 20 to 25 parts of soil beneficial microbial agent, and 5 to 10 parts of humic acid. The invention further provides the application of the ecologic conditioner in conditioning the salt-affected soil ecology by the sea. The ecologic conditioner can promote the formation of soil water-stable aggregates and improve soil texture, thereby promoting the building and the maintaining of soil beneficial microbiological communities; meanwhile, the ecologic conditioner can promote the uptake of nitrogen, phosphorus, potassium and microelements of crops, improve the utilization ratio of fertilizers, and buffer the manurial effect.

The invention discloses a rice seedling raising method which comprises the following steps: S1, traying a seedling raising medium, namely preparing a seedling tray, and laying the medium in the seedling tray; S2, traying fertilizers, namely laying fertilizers on the medium in the seedling tray; S3, seeding, namely spreading rice seeds in the seedling tray; S4, covering the medium, namely coveringthe medium on rice seeds; and S5, performing seedling raising management in a greenhouse, namely transplanting the seedling tray into a heat preservation site, and performing seedling raising management. In the seedling raising process, the novel rice medium raising technology and sustained / controlled release fertilizer application method are combined, one-off application of the fertilizer in thewhole growth period of rice can be completed while seedling raising. The method is simple and high-efficiency, and rice seedling raising and fertilization can be synchronously realized.

The invention relates to an acid tobacco-planting soil conditioner and an application method thereof. The acid tobacco-planting soil conditioner is prepared by mixing the following raw materials in parts by weight: 20-30 parts of slaked lime and 0.5-2 parts of PAM (industrial polyacrylamide). The acid tobacco-planting soil conditioner changes the acid tobacco-planting soil, the originally fixed nutrition ions are released, and the released nutrition ions can be absorbed by aggregates formed by PAM, thus nutrient loss in the soil can be reduced, the nutrition ions which are aggregated into acid soil particles and can not be absorbed by roots of flue-cured tobaccos are absorbed as the environment is changed, tobacco seedling growth can be obviously promoted, the tobacco leaf yield can be improved, a vigorous plant inhibits diseases of flue-cured tobacco, especially bacterial wilt, and further the quality and yield of the flue-cured tobacco are improved.

The invention discloses environment-friendly compound fertilizer for corn and belongs to the technical field of fertilizer. The compound fertilizer is prepared from raw materials in parts by weight as follows: 55-60 parts of poultry and livestock manure, 22-25 parts of egg shells, 6-10 parts of fruit peels, 12-14 parts of soybean cakes, 8-10 parts of peanut bran, 4-6 parts of distillers' grains, 16-18 parts of pottery clay, 15-17 parts of plant ash, 1-4 parts of trace elements, 10-20 parts of urea, 6-10 parts of potassium sulfate, 6-10 parts of diammonium hydrogen phosphate, 0.5-1 part of bacillus subtilis, 1-2 parts of saccharomyces cerevisiae, 5-10 parts of humic acid, 10-12 parts of traditional Chinese medicine dregs, 7-9 parts of plant essential oil and 1-3 parts of a plant growth regulator. The invention further discloses a preparation method of the environment-friendly compound fertilizer for corn. The compound feed is very environment-friendly and can effectively provide multiple nutrients for the corn.

The invention belongs to the technical field of fertilizer preparation, and particularly relates to special fertilizer for grapes and a preparation method of the special fertilizer. The special fertilizer is prepared from raw materials in parts by weight as follows: 30-40 parts of urea, 20-30 parts of ammonium phosphate, 18-25 parts of calcium superphosphate, 20-30 parts of calcium magnesium phosphate, 18-25 parts of monopotassium phosphate, 8-15 parts of potassium sulfate, 18-22 parts of cow and sheep manure, 20-30 parts of biogas residues, 12-18 parts of humic acid, 10-15 parts of tea cakes, 8-12 parts of Chinese medicine residues, 1-3 parts of zinc amino acid chelate, 1-3 parts of boron amino acid chelate, 1-3 parts of manganese amino acid chelate, 1-3 parts of calcium amino acid chelate, 1-3 parts of magnesium amino acid chelate, 6-15 parts of compound bacteria and 5-8 parts of a leavening agent. The special fertilizer for the grapes sufficiently meets requirements for growth and development of the grapes, high quality and high yield, meanwhile, a soil structure is effectively improved, besides, characters such as content of procyanidine, anthocyanidin, resveratrol and pectin of the grapes and the like are remarkably improved, and the produced grapes are qualified non-polluted fruits.

The invention discloses a grain-rapeseed double-harvesting planting method for a red-soil rice field. The method comprises the steps: (1) selecting a middle-season rice and ratoon rice variety, planting middle-season rice in a red-soil region in a rice seedling transplanting or throwing manner at the first ten days of May, and reaping the middle-season rice at the last ten days of August; and carrying out stubble-remaining regrowing so as to obtain ratoon rice, strengthening field management, and reaping the ratoon rice at the last ten days of October; and (2) selecting a hybridized double-low rape variety, and carrying out interplanting 5 to 7 days before reaping the ratoon rice at the last ten days of October; and carrying out mechanical harvesting and threshing when rape pods of an entire rape field are yellow and seed coats are black brown from the end of April to the beginning of May in an ensuing year. According to the method, on one hand, high and stable yielding of rice and rape can be simultaneously guaranteed from planting time; meanwhile, the middle-season rice is planted in advance by 20 to 30 days (the first or middle ten days of May) in this research, so that the condition that the ratoon rice is reaped at the end of October is ensured, thus, sufficient planting time for rape planting is set aside, and the planting of the middle-season rice is not affected after the rape is reaped; and bumper harvest in both grains and rapeseed is expected.

The present invention discloses a compound fertilizer capable of restoring soil and reducing crop cadmium absorption, and the compound fertilizer comprises the following raw materials by weight: 15% to 40% of a nitrogen raw material, 5-10% of a phosphorus raw material, 8-20% of a potassium raw material, 15%-30% of calcium magnesium phosphorus fertilizer, 6%-35% of charcoal activated carbon, 2%-3% of bentonite, 1%-3% of potassium humate, 1%-3% of solid silicate and 1%-2% of borax. The present invention also provides the application of the fertilizer in crops. Through combination of fertilizer preparations and absorbent materials, the compound fertilizer can absorb heavy metals, and also can absorb nutrients, protect fertilizer, restore soil and increase fertilizer use efficiency by 10%; after administration, the crop Cd content can be effectively reduced, and the reducing rate is about 30%-50%, heavy metal Cd adsorption fixing time period can be maintained at about 3-6 months, and the compound fertilizer has a wide use range, and is worthy of promoting.

The invention discloses a fulvic acid water-soluble foliar fertilizer and a preparation method thereof. The fulvic acid water-soluble foliar fertilizer comprises the following active ingredients in parts by weight: 30-40 parts of sodium fulvate, 40-50 parts of potassium dihydrogen phosphate, 20-30 parts of urea, 10-15 parts of ammonium sulfate, 25-35 parts of waste silk, 15-20 parts of feather meal, 5-10 parts of monosodium glutamate leftovers, 2-3 parts of zinc nitrate, 1-2 parts of manganese sulfate, 1-2 parts of magnesium sulphate, 0.5-1.5 parts of sodium molybrate, 1-2 parts of boric acid, 0.5-1 part of thylenediaminetetraacetic acid disodium, 10-15 parts of kelp residues, 5-10 parts of rape seed cakes, 8-12 parts of soyabean meal, 5-10 parts of brewer's grain, 8-12 parts of waste methane liquid, 2-3 parts of luffa stem, 1.5-2.5 parts of cortex meliae, 1-2 parts of tung tree roots, 2-3 parts of radix sophorae flavescentis, 1-2 parts of thunder god vine, and 2-3 parts of castor plant leaves. The foliar fertilizer is complete and balanced in nutrients, high in fertilizer efficiency, high in fertilizer utilization rate, capable of fast replenishing the nutrition for crops, also has the effects of disease prevention, antibiosis, insect killing, insect expelling, flower retention, fruit retention and the like, is obvious in effects of reducing the plant disease and insect pest of crops, reducing the use of chemical pesticide, promoting fast growth of crops, enhancing the stress tolerance of crops, improving the quality of crops and increasing both production and income, and has tremendous economic benefits.

The invention discloses crops nitrogen element nutrition diagnostic equipment, which comprises a crops canopy information measure module, a mobile terminal and a remote server, the remote server comprises a fixed IP address for receiving the measure data of the reception mobile through GPRS transmission; the crops canopy information measure module is composed of a microcontroller, a sunshine light intensity detector, a canopy reflected light detector, a lithium battery power supply module and a bluetooth module. The microcontroller comprises two IIC interfaces, six analogue I / O interfaces, a digital I / O interface and a serial communication interface connected to the bluetooth module. The microcontroller is connected to the lithium battery power supply module through the digital I / O interface and is capable of controlling the lithium battery power supply module. A diagnosis method is divided into five steps. The method can rapidly measure the nitrogen concentration, biomass and nitrogen element nutrition index information of crops in a nondestructive mode, and measurement point latitude and longitude, crop nitrogen element nutrition lack level and fertilization suggest can be given. The crops nitrogen element nutrition diagnostic equipment has important meaning for accurately managing a nitrogenous fertilizer for crops, increasing fertilizer utilization rate, and reducing environmental pollution.

The invention belongs to the technical field of fertilizer, and more specifically relates to a tobacco special-purpose charcoal-based compound fertilizer, and a preparation method and an application method thereof. The tobacco special-purpose charcoal-based compound fertilizer comprises, by weight, tobacco straw, waste tobacco, pig manure, earthworm manure, vegetable waste, domestic garbage, nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, trace element liquid fertilizer, a compound microbial agent, and an adhesive, and is prepared through a plurality of technologies. The tobacco special-purpose charcoal-based compound fertilizer is high in granulation rate, is capable of obviously improving fertilizer utilization rate, and is capable of improving soil acidifying and hardening after being applied to tobacco field, and increasing soil available nutrient content; the quality of the harvested tobacco leaves is improved obviously, the proportion of middle and upper-grade tobacco leaves is increased, the yield per mu and the output value per mu are obviously increased; and the tobacco special-purpose charcoal-based compound fertilizer is taken as a base fertilizer, onlyone time of application is capable of satisfying all the requirements of tobacco on nutrients in the tobacco growth period, reducing the using amount and the application frequency of traditional fertilizers; using is convenient; and labor is saved.

The invention relates to a compound microbial fermented soil conditioner including the following raw materials in parts by weight: 290-315 parts of urea, 290-315 parts of a nitrogen and potassium compound fertilizer, 235-260 parts of ammonium dihydrogen phosphate, 40-60 parts of potassium pyrophosphate, 1-3 parts of chelated iron, 3-5 parts of chelated zinc, 80-100 parts of a fermented product oflignite or weathered coal and a microbial agent, and 900-1100 parts of an anticaking agent. The compound microbial fermented soil conditioner provided by the invention comprises humic acid rich in mineral sources, solves the problems of soil hardening, acidification, salinization and the like, also has a good role in promoting plant root systems, and greatly improves other corresponding agronomictraits. The microbial agent has the abilities of nitrogen fixation, phosphorus removal, potassium removal, plant hormone production or antibiotic secretion, promotes the material circulation and nutrient supply in soil, and improves the soil fertility and the fertilizer utilization rate.

The invention relates to a long-acting controlled-release fertilizer special for Chinese angelica and a preparation method and application thereof. The fertilizer special for the Chinese angelica comprises urea, double superphosphate or diammonium phosphate, potassium sulfate, a fertilizer sustained release medicament and a secondary and micro-element, wherein the fertilizer sustained release medicament is N-acetyl-L-methionine (NAM); and the secondary and micro-element is one or a combination of Ca, Mg, S, Mn, Mo and Zn. The long-acting controlled-release fertilizer special for the Chinese angelica has the advantages of capability of overcoming the defects of low fertilizer utilization ratio, poor fertilizer efficiency durability, inconvenient application and the like existing in the prior art and realizing one-step fertilizer application in a Chinese angelica production process, convenient application, high fertilizer utilization ratio, high fertilizer efficiency durability and the like.

The invention discloses a humic acid bio-compound fertilizer. The humic acid bio-compound fertilizer is prepared from the following raw materials in parts by weight: 14-25 parts of nitric acid, 16-25 parts of ammonia water, 25-35 parts of monopotassium phosphate, 580-620 parts of urea, 1-5 parts of a coagulating agent, and 5-20 parts of humic acid. According to the humic acid bio-compound fertilizer disclosed by the invention, urea reacts with humic acid under a certain condition to form a reasonable quantity of stable free radicals, and the activity of an enzyme in a plant body can be improved, so that the utilization rates of fertilizers such as a nitrogen fertilizer are increased, available nutrients in soil can be refined, absorption and utilization for all large and medium trace elements can be promoted, the damages of the fertilizers to soil can be reduced, and the hardening of the soil can be effectively prevented.

The invention discloses a water and fertilizer integrated fertilizer applying method for mangoes, which belongs to the technical field of agricultural irrigation and fertilizer application. The water and fertilizer integrated fertilizer applying method comprises the following steps of dissolving a water soluble fertilizer in water, and performing infiltration irrigation to soil at root zones, wherein the infiltration irrigation specifically comprises infiltration irrigation fertilizer application for mangoes at a flower bud differentiation period, infiltration irrigation fertilizer application for mangoes at a flowering period, infiltration irrigation fertilizer application for mangoes at a young fruit enlarging period, and infiltration irrigation fertilizer application for mangoes after being picked. Compared with a conventional fertilizer applying method, the water and fertilizer integrated fertilizer applying method disclosed by the invention has the advantages that the amount of the fertilizer is saved by 50% or above, the evaporation amount of water is notably reduced, and water is saved by 80%; the problem of pressure difference caused by a slope is solved, flow quantities of the water and the fertilizer on slopes and below the slopes are uniform, the growth vigours of tree bodies on the slopes and below the slopes are the same, and the yield is notably increased by 30% or above. An infiltration irrigation pipeline used for the method is buried underground, and farming operations of field weeding and insecticide spraying are not influenced.

The invention discloses a special organic slow-release fertilizer for fruit trees and application thereof. The special organic slow-release fertilizer for fruit trees comprises an inorganic constituent and an organic constituent, wherein the mass percent of the organic constituent is 30-45%. On the basis of the mass of the special organic slow-release fertilizer for fruit trees, the N element content in the inorganic constituent is 7-13%, the P2O5-based P element content is 3-6%, and the K2O-based K element content is 8-12%. The organic constituent comprises the following components in parts by weight: 5-10 parts of lignin, 5-10 parts of biomass charcoal, 5-10 parts of potassium fulvate, 5-10 parts of ammonium humate and 5-10 parts of pecan shell yeast powder. By adding the lignin, biomass charcoal, pecan shell yeast powder, potassium fulvate and ammonium humate as the organic constituent into the fertilizer, the special organic slow-release fertilizer for fruit trees has the advantages of favorable slow-release property, high utilization ratio, low energy consumption and environment friendliness.

The invention provides a sludge organic fertilizer, belonging to the field of fertilizer. The sludge organic fertilizer is mainly prepared from the following raw materials in parts by weight: 90-110 parts of sludge, 1.5-2.5 parts of a dispersant, 0.05-0.15 part of an organic fertilizer fermenting agent and 0.4-0.6 part of quicklime. The invention further provides a preparation method of the sludge organic fertilizer. The preparation method comprises the following steps: (1) mixing and airing sludge and the dispersant; (2) mixing the organic fertilizer fermenting agent into the aired material and carrying out aerobic fermentation in a fermentation cabin for 10-15 days; (3) mixing the quicklime into the material after aerobic fermentation, covering and piling by using a plastic thin film, and carrying out anaerobic fermentation for 8-12 days; and (4) airing, crushing, granulating, drying, cooling and screening the material after anaerobic fermentation to obtain a finished product, wherein the grain size of granules after granulation is 2-5mm. By using sludge as the raw material, innocent treatment and cyclic utilization of sludge are achieved, and the problem of environmental pollution caused by sludge is solved.