120 results about "Calcareous soils" patented technology

The invention discloses a particle zinc fertilizer for plants. The particle zinc fertilizer consists of the following compositions in mass portion: 20 to 30 mass portions of zinc sulfate, 25 to 35 mass portions of simple substance sulfur, 20 to 30 mass portions of humic acid, 15 to 25 mass portions of bentonite, and 3 to 5 mass portions of a liquid caking agent. The particle zinc fertilizer consists of a fertilizer core and an envelope, wherein the fertilizer core consists of the zinc sulfate, the simple substance sulfur, the humic acid and the liquid caking agent; and the envelope consists of the simple substance sulfur and the liquid caking agent. The particle zinc fertilizer is a novel highly-efficient particle zinc fertilizer which is suitable for calcareous soil in north China, and in a culture test of the fertilizer, the particle zinc fertilizer can obviously reduce the pH value of soil by 0.4 to 0.5 unit compared with using common zinc sulfate, and can improve the concentration of effective zinc in the soil by more than 60 percent.

The invention relates to the technical field of agricultural fertilizer, particularly to a multifunctional synergist of a compound fertilizer suitable for calcareous soil of dry land, and application of the multifunctional synergist. The synergist is composed of, in percentage by mass, 40-70% of super-absorbent resin, 15-25% of citric acid and the salts thereof, 10-20% of a nitrification inhibitor, 4-10% of polyborate and 1-5% of EDDHA (ethylenediamine di-o-phenyl acetate)-microelement chelate. The synergist prepared according to the invention can be used as an additive of a compound fertilizer or applied together with various common compound fertilizers or formula fertilizers to exert the function of preventing and controlling the loss ways of nitrogen, phosphorus and potassium simultaneously, and can realize one-time total-nutrient fertilizer application; and the synergist has multiple functions of stabilizing fertilizer by slow release, holding water and resisting drought, improving soil with nutrients, saving labour, increasing production, etc.

The invention discloses an oxalic acid penicillium strain NJDL-03 and application thereof. The strain NJDL-03 belongs to oxalic acid penicillium and is preserved in General Microorganism Center of China Committee for Culture Collection of Microorganisms on eighth, July, 2015, and the strain preservation number is CGMCC No. 11061. By means of the oxalic acid penicillium strain NJDL-03, solubility of hydroxyapatite can be remarkably improved, a large number of phosphate ions (PO<4><3->) are released out, hydroxyapatite lead [pb<10>(PO<4>)<6>(OH)<2>] which is quite prone to precipitating and fairly stable is generated through Pb<2+> in a precipitation environment, effectiveness of lead in the environment is lowered, and thereby the environment polluted by lead is restored. Oxalic acid penicillium fertilizer prepared through solid fermentation of the strain NJDL-03 is remarkable in application effects of improving solubility of hydroxylapatite, restoring lead pollution of soil, raising the utilization rate of calcareous soil phosphorus and promoting crop growth.

The invention discloses a siderophores-producing bacillus. The strain is paenibacillus illinoisensis preserved in China General Microbiological Culture Collection Center (CGMCC) on August 29, 2014, wherein the address of CGMCC is Courtyard No.3, No. 1 of Beichen West Road, Chaoyang District, Beijing, and the Preservation No. is CGMCC No. 9620. The strain of the siderophores-producing bacillus can produce siderophores in an iron-limited culture medium. Under the conditions of pots and fields, after a bacterium suspension of the siderophores-producing strain of the siderophores-producing bacillus is subjected to seed soaking treatment before peanut seeding and is subjected to root-irrigation treatment in the growth period; in calcareous soil, the strain can obviously improve the iron nutrition of peanuts in the growth period, and can increase the chlorophyll content of peanuts, enhance the root activity of peanuts, promote the accumulation of nitrogen, phosphorus and potassium in peanut plant bodies, increase the biomass of plants, improve the quality of peanuts and increase the yield of peanuts.

The invention discloses a method for repairing cadmium-lead composite polluted calcareous soil. Heavy metals of cadmium and lead in the calcareous soil mainly exist in a carbonate combined state and an organic combined state which are more stable, treatment requirements are difficultly met by a chemical fixation method, and a conventional leaching repair method has the problems of serious damage to soil property and difficulty in leaching liquid treatment. In order to solve the problems, Al2(SO4)3 18H2O and polymeric ferric sulfate (PFS) are uniformly mixed with the soil according to a certain molar ratio and are soaked with water, filtrate is collected, the heavy metals in the filtrate are settled, and the soil can be circularly leached by supernate. The removal rate of available Cd in the polluted soil reaches 84.02%, the removal rate of available Pb in the polluted soil reaches 79.47%, and the repaired soil is beneficial to crop plantation.

The invention relates to a method for soaking and extracting available nutrient of neutral soil and calcareous soil and a combined extraction agent thereof. The combined extraction agent is a combination consisting of NaHCO33, Na2CO3 and Na2SO4; the combined extraction agent is prepared to aqueous solution which comprises 0.40mol / L to 0.50 mol / L NaHCO3, 0.020 mol / L to 0.030mol / L Na2CO3 and 0.30 mol / L to 0.40mol / L Na2SO4 and has a PH value between 8.4 and 8.6, then the solution with the mass ratio of the solution to soil between 5:1 and 25:1 is mixed to the soil which is to be measured; under the temperature condition between 20 DEG C and 30 DEG C, the solution is oscillated or stirred, soaked and extracted for 4 minutes to 20 minutes and filtered. The extraction agent has large buffering capacity and wide application range and can rapidly and high-efficiently soak and extract ammonium nitrogen, nitrate nitrogen, available phosphorus, rapidly available potassium for one time and has high extraction efficiency and remarkable relativity with a routine measuring result and satisfies the needs of rapidly measuring the main available nutrient in the soil.

The invention relates to the technical field of screening and application of functional microorganisms, and specifically provides new bacillus subtilis and application thereof in agricultural production. The bacillus subtilis with the preservation number of CCTCC NO: M2019402 is screened from calcareous soil. The strain of the bacillus subtilis has relatively strong enzyme production ability, thecontent of effective phosphorus in soil can be effectively improved, the crop yield can be increased, common plant diseases such as root rot and scab can also be effectively prevented and controlled,and the effect is remarkable.

The invention provides a slow-release compound iron fertilizer for treating yellows of camphor trees. The slow-release compound iron fertilizer comprises the following compositions: 25 to 45 percent of peat, 40 to 45 percent of organic fertilizer, 10 to 15 percent of low-phosphorus envelope slow release fertilizer and 5 to 15 percent of ferrous sulfate fertilizer. The slow-release compound iron fertilizer is obtained by mixing the organic fertilizer, the peat and the low-phosphorus envelope slow release fertilizer according to proportion, dissolving the ferrous sulfate fertilizer into a nontoxic waste acid solution with a pH value of approximately 3.4, and uniformly mixing two mixtures. The iron fertilizer has the advantages of high content of organic substances, low phosphorus content, low pH value, high fertilizer utilization rate, durable fertilizer effect, stable physicochemical properties and convenient application, and not only has the functions of improving the growth conditions of the camphor trees, promoting nutrient balance and strengthening the tree vigor but also has obvious effect of preventing and controlling physiological diseases caused by iron deficiency of the camphor trees. The iron fertilizer can be applied to treatment of calcareous soil iron-deficiency yellow camphor trees.

The invention discloses a geotechnical material of microbial granule and a production method thereof. The material comprises, by weight, 1-5 parts of foam plastic particles or fragments, 80-95 parts of calcareous soil and 5-9 parts of Pasteurella multocida fluid. The geotechnical material prepared by the method has the advantages of being light in mass, medium in strength, and good in stability. The geotechnical material of microbial granule can be produced by using discarded foam material and calcareous material, thus the cost is low. The geotechnical material can be used as the filler material for man-made islands of roadbed and pipe, and can also be used for preparing building materials such as light building blocks.

The invention relates to a calcareous soil phosphorus activator and a preparation method and application thereof. The calcareous soil phosphorus activator comprises active ingredients including crop straws, coal ash, bentonite, humic acid, seaweed extract, organic acid, amino acid, phytase and the like. The calcareous soil phosphorus activator has the advantages that through physical and chemicalactions, phosphorus fixation of calcareous soil can be alleviated effectively, phosphorus fixed in the soil can be activated, unavailable phosphorus in the soil can be facilitated to be converted intoavailable phosphorus, and accordingly the calcareous soil phosphorus activator is widely applicable to the calcareous soil in different areas; in a process of activating a soil phosphorus nutrient after being applied into the soil, the calcareous soil phosphorus activator can also facilitate soil phosphorus nutrient absorbing of crops, can enhance fertilizer efficiency of a fertilizer when beingapplied together with the fertilizer, and can increase output and quality of the crops.

The invention discloses a cadmium-contaminated soil modifier and a preparation method thereof and an improvement method for the cadmium-contaminated soil. The cadmium-contaminated soil modifier is prepared from the following raw materials in percentage by weight: 1 to 7 percent of polyaluminum chloride, 3 to 28 percent of ferric sulfate, 7 to 28 percent of calcium hydrogen phosphate, 35 to 85 percent of citric acid, 2 to 15 percent of polyacrylamide and 0.5 to 8 percent of L-proline. The invention also discloses the preparation method of the cadmium-contaminated soil modifier and the improvement method for the cadmium-contaminated soil. According to the cadmium-contaminated soil modifier and the preparation method thereof and the improvement method for the cadmium-contaminated soil, disclosed by the invention, the prepared modifier has the characteristics of surface adsorption, surface complexation and the like; the migration and effectiveness of cadmium in heavy metal contaminated soil can be significantly reduced, the absorption of the cadmium by plants is reduced, the physiological resistance of crops is improved, structure and properties of the soil are improved and the uniformity of soil microbes is improved; the cadmium-contaminated soil modifier is especially suitable for calcareous soil. The modifier has the advantages of easiness in raw material obtaining, low cost andsimple preparation; the improvement method for the cadmium-contaminated soil is simple and stable in effect.

The invention discloses a conditioner for repairing heavy metal contaminated soil and a preparing method for the conditioner. The conditioner comprises, by weight part, 18-33 parts of oyster powder, 11-17 parts of biogas residue, 4-10 parts of cow dung, 3-11 parts of selenium nitrate, 4-9 parts of calcium molybdate, 2-8 parts of barium phosphonate, 5-11 parts of superphosphate, 50-85 parts of calcareous soil, 6-10 parts of calcium oxalate, 7-12 parts of sugarcane ash, 3-10 parts of palygorskite, 2-8 parts of bamboo powder, 1-3 parts of yeast powder and 4-8 parts of poly dimethyl diallyl ammonium chloride and further comprises 0.1-1.5 parts of cellulose decomposition bacterium agent and 0.3-1.8 parts of silicate bacterium. By means of the prepared conditioner, the content of organic matter in the soil, the content of salt in the soil and the content of available nitrogen in the soil are obviously increased, the texture and the structure of the soil are improved, and the conditioner is suitable for agricultural planting.

The invention provides a calcareous soil application apricot tree BB fertilizer with major elements, medium elements and micro elements, the apricot tree BB fertilizer has the major elements of nitrogen, phosphorus and potassium, the medium elements of calcium, magnesium and sulfur and the micro elements of iron, zinc, manganese, boron, molybdenum, chloride and copper, the apricot tree BB fertilizer is prepared from five fertilizer sources of monoammonium phosphate, urea, potassium chloride, calcium magnesium phosphate powder and phosphogysum particles according to the characteristic that calcareous soil is alkali, by use of the interaction of the five fertilizer sources for improvement of fertilizer efficiency, the application amount of the fertilizer is reduced, the price is low, the price of the calcareous soil application apricot tree BB fertilizer is 20 yuans cheaper per 50kg than that of a same content compound fertilizer on the market, and 400 yuans cheaper per ton than that ofthe same content compound fertilizer on the market, and according to garden tests, under equivalent-nitrogen and phosphorus conditions, the yield of apricot fruits fertilized by the BB fertilizer prepared from the five fertilizer sources can be increased by 10-20% per mu compared with that of the apricot fruits fertilized by a BB fertilizer prepared from diammonium phosphate as a phosphorus source.

The invention belongs to the field of soil remediation and discloses a remediation method of heavy metal contaminated acidic soil. The remediation method of heavy metal contaminated acidic soil comprises the following steps: (1) stirring and mixing heavy metal contaminated acidic soil with calcareous soil, and standing the mixed soil for 2 hours; (2) mixing urea phosphate, chitin, biochemical fulvic acid and alginic acid, adding the mixture into the mixed soil, and stirring uniformly; and (3) standing for 3 hours, adding the solution of bacillus and rice bran, and standing. The raw materials adopted by the remediation method are simple, easily available and environment-friendly and can not cause secondary pollution. The remediation method provided by the invention is an environment-friendly method for rapidly and deeply remediating a variety of heavy metal contaminated acidic soil without damaging the biological properties of soil, and the remediation method is suitable for commercial production.

The invention relates to a water soluble fertilizer for agricultural production, in particular to an acidic drip irrigation fertilizer which is suitable for calcareous soil and applied to processing tomatoes, and a preparation method thereof. The acidic drip irrigation fertilizer for the processing tomatoes mainly comprises the following raw materials in parts by weight: 18-21 parts of ammonium sulphate, 33-38 parts of urea phosphate, and 42-48 parts of potassium nitrate. The preparation method of the acidic drip irrigation fertilizer for the processing tomatoes comprises the steps of: separately crushing the raw materials such as the ammonium sulphate, the urea phosphate and the potassium nitrate in parts by weight, and screening the crushed materials, wherein the screening mesh number is 40-50 meshes; and uniformly mixing the screened materials, performing secondary crushing on the uniformly mixed materials, and performing secondary screening, wherein the mesh number of the secondary screening is 70-80 meshes. The acidic drip irrigation fertilizer for the processing tomatoes is convenient and practical, the production cost can be reduced, the acidic drip irrigation fertilizer is suitable for the calcareous soil, soil is partially acidified under drip irrigation conditions, plugging of an irrigation system is avoided, and the yield of the processed tomatoes is increased; in addition, the preparation method is simple in preparation and is economical and practical.

The invention relates to a soil fertilizer technique and an industrial-waste treatment technique, in particular to a calcareous-soil nitrogen-phosphorus synergist and a preparation method thereof, which solves the problem that calcareous soil is low in nitrogen-phosphorus effectiveness and the ratio of utilizing nitrogen and phosphorus in fertilizer applied to the soil. According to the weight ratio of dry substances, the calcareous-soil nitrogen-phosphorus synergist comprises 40 to 50 portions of monosodium glutamate waste liquid, 3 to 5 portions of natural zeolite powder, 40 to 50 portions of lignite and 5 to 7 portions of sawdust. The preparation method comprises the steps of adding the natural zeolite powder to the concentrated monosodium glutamate waste liquid according to the weight ratio of the dry substances, mixing the two well, standing the mixture, adding the lignite and the sawdust to the mixture, air-drying, sifting, well mixing and separately packaging the obtained product, and obtaining a finished product. The nitrogen-phosphorus synergist has the advantages that the synergist is friendly to environment, simple in process and low in cost, and can be applied to farmland in the type of calcareous soil alone or be mixed with chemical fertilizer for application.

The invention discloses a calcareous soil salt alkali improver and a preparation method thereof. The improver is prepared from acrylic acid, maleic anhydride and water. The salt alkali improver prepared by the invention can rapidly reduce the pH value of soil, reduce the soil alkalization degree, enhance the soil desalination capacity, improve the soil granular structure, reduce the soil bulk density, enhance the soil permeability, increase the soil calcium fertilizer content, and improve the soil function of moisture and fertility retention; the addition of the improver does not cause secondary pollution to the soil environment; the composition of the improver is simple, the preparation method is convenient, the use is convenient, and the improver is sprayed by adding water, is dripped with water or conducts drip irrigation with water-saving irrigation technique.

The invention discloses penicillium asturianum, which is classified as penicillium asturianum and has a strain number XK-12, and is preserved in the General Microorganisms Collection and Management Center of China, a preservation time is March 28th, 2019, and a preservation number is CGMCC No. 17198. The invention also discloses an application of the above-mentioned penicillium asturianum. The strain of the invention has excellent properties such as high temperature resistance, salt and alkali resistance, cellulase production, iron absorption and phosphorus solubilization, and can be applied to poor soil, saline-alkali land and calcareous soil restoration, straw decomposing and composting agent inoculation. The P. asturianum XK-12 strain has large sporulation quantity, is highly efficientand has the broad-spectrum plant disease biocontrol ability, can promote plant growth and is suitable for industrial production.

The invention discloses a preparation method of a high-efficiency phosphorus-containing product and an application thereof. The method comprises the following steps: using cracking products of agricultural wastes at a 600-700 DEG C anaerobic environment as biochar, fully mixing a phosphate fertilizer, the biochar and sulfur powder according to the mass ratio of (90-70):(5-15):(5-15) to obtain a phosphate fertilizer mixed material, spraying 20-35 L of a 1.0%-1.5% polyacrylamide solution per 1000 kg of the phosphate fertilizer mixed material, and performing fully stirring and airing to obtain the high-efficiency phosphorus-containing product. Based on the biomass carbon and the sulfur powder as main phosphorus adsorption and activation materials, the biomass carbon and the sulfur powder arefurther compounded with the phosphate fertilizer through polyacrylamide, and thus the effectiveness of the phosphate fertilizer in soil, especially northern calcareous soil and saline-alkaline soil, is improved.

This invention relates to a soil nutrient combined extractive agent, especially to a neutral, lime soil nutrient combined extractive agent related obviously with conventional extracting effect and leaching multiple kinds of soil effective nutrients at the same time which is a solid powder containing Na ions, sulphate, acetate, bicarbonate and carbonate multiple effective nutrient to be mixed to water solution to extractor in neutral, lime soils, eg.: to extract ammonia nitrogen, nitrate nitrogen, fast-effective P and fast-effective K at the same time.

The invention discloses a cultivation method capable of increasing rape fruiting rate and belongs to the technical field of agriculture. The cultivation method includes following steps: step 1, applying boron fertilizer: dressing boron fertilizer while applying boron fertilizer as base fertilizer; step 2, selecting a selecting a place high in soil boron content, slightly acidic in soil, goodin soil texture, convenient for drainage and irrigation and away from industrial and mining enterprises, and not selecting alkaline and calcareous soil; step 3, performing field management includingproper early sowing, balanced fertilizing and reasonable irrigating; step 4, regulating plants: respectively applying paclobutrazol once at a seedling stage and a moss stage. By adopting the method, fruiting rate of specific rape can be increased effectively, yield and quality can be improved, farmers' income can be increased, and development of high-quality high-yield high-efficiency rape industry can be promoted.

The invention provides a calcareous soil application pomegranate tree BB fertilizer with major elements, medium elements and micro elements, the pomegranate tree BB fertilizer has the major elements of nitrogen, phosphorus and potassium, the medium elements of calcium, magnesium and sulfur and the micro elements of iron, zinc, manganese, boron, molybdenum, chloride and copper, the pomegranate treeBB fertilizer is prepared from five fertilizer sources of monoammonium phosphate, urea, potassium chloride, calcium magnesium phosphate powder and phosphogysum particles according to wooden barrel laws and soil fertility grading method, by use of the interaction of the five fertilizer sources for improvement of fertilizer efficiency, the application amount of the fertilizer is reduced, the priceis low, the price of the 45% three-element BB fertilizer prepared from the five fertilizer sources of the monoammonium phosphate, the urea, the potassium chloride, the calcium magnesium phosphate powder and the phosphogysum particles is low, and is about 20 yuans cheaper per 50kg than that of a same content compound fertilizer on the market, and according to garden tests, under equivalent-nitrogenand phosphorus conditions, the yield of pomegranate fruits fertilized by the BB fertilizer prepared from the five fertilizer sources can be increased at average by 10-20% per mu compared with that ofthe pomegranate fruits fertilized by a BB fertilizer prepared from diammonium phosphate as a phosphorus source.

The invention provides a method for detecting available phosphorus content in sugarcane area soil. The method comprises the following steps: sampling to-be-detected soil in a sugarcane area; then extracting the soil sample by utilizing a sodium bicarbonate extracting agent; adjusting the to-be-detected liquid of the soil sample to be yellowish by using 2,4-dinitrophenol indicator, a dilute sulfuric acid solution and a dilute sodium hydroxide solution; and then further adding a molybdenum-antimony anti-color developing agent, measuring the light absorption value of the color developing solutionat the wavelength of 700nm by utilizing a 1cm light path cuvette to obtain the content of phosphorus in the to-be-measured solution of the soil sample, and finally calculating the content of available phosphorus in the soil of the sugarcane area according to the content of phosphorus in the to-be-measured solution of the soil sample. According to the method, the detection time is short, the detection limit, the accuracy and the precision are good, the accuracy of the detection result of the available phosphorus content in the sugarcane area soil can be improved, and the labor amount and the labor intensity can be reduced. The technical scheme can be widely applied to detection of available phosphorus in neutral, slightly acidic and calcareous soil, so that a scientific basis is provided for application of phosphate fertilizer in sugarcane areas.

The invention relates to plant waste based sludge fertilizer for calcareous soil and a preparation method and belongs to the fields of sludge treatment and crop planting. The sludge fertilizer is prepared through the following steps: firstly, zinc chloride, humic acid and ferric chloride are added to sludge, the materials are blended, stirred and subjected to suction filtration, dehydration is performed, and pre-treated sludge is obtained; protease, amylase and lipase are added to the pre-treated sludge, then stirring, air blowing at graded temperatures, drying, crushing and sieving are performed, and preliminarily treated sludge is obtained; plant waste is ground and mixed with the preliminarily treated sludge, and a mixture is obtained; the mixture is soaked in a sodium chloride solution, drained and pyrolyzed, and after-treated sludge is obtained; the after-treated sludge is washed with a hydrochloric acid solution, dried, cooled, crushed and sieved, and the sludge fertilizer is obtained. Crops can be planted in the calcareous soil effectively and production output can be increased effectively after the sludge fertilizer is applied to the calcareous soil.

The invention provides a silicon-calcium-magnesium fertilizer soil conditioner as well as a preparation method and application thereof, and relates to the technical field of soil improvement. The raw materials of the silicon-calcium-magnesium fertilizer soil conditioner are mainly composed of dolomite, medical stone and other minerals, the materials are wide in source and low in price, and the silicon-calcium-magnesium fertilizer soil conditioner contains a large amount of silicon, calcium, magnesium, potassium and other elements and can be used as a fertilizer. The soil conditioner is applied to heavy metal pollution remediation of soil for the first time, in particular to heavy metal pollution remediation of alkalescence calcareous soil in the north. According to the embodiment of the invention, pot culture and field experiments prove that the silicon-calcium-magnesium fertilizer soil conditioner can improve the pH value of soil by 0.48-0.91 and obviously reduce the DTPA-state cadmium content of the soil; the content of exchangeable cadmium in soil and the content of cadmium in a carbonate binding state are remarkably reduced, and the content of iron and manganese oxide binding state, organic binding state and residual state cadmium is increased; and the cadmium content in each organ of the wheat is obviously reduced.

The invention discloses a special corn BB fertilizer suitable for a mild cadmium and lead combined polluted calcareous soil, and belongs to the technical field of fertilizers. The special corn BB fertilizer is an organic-inorganic bulk blend fertilizer and comprises the following effective ingredients according to mass percentage: 15% of nitrogen, 6% of phosphorus pentoxide, 6% of potassium oxide, 33% of sulfate radical, and 4% of humic acid. The BB fertilizer is blended from granular ammonium sulfate, diammonium phosphate and a humic acid compound fertilizer according to a certain proportion, is suitable for the mild cadmium and lead combined polluted calcareous soil, effectively inhibits the absorption and the transport of heavy metals, such as cadmium and lead, of the corn, reduces the bio-availability of cadmium and lead in the soil, promotes the growth of the corn, and guarantees the quality of the corn.

The invention discloses a high water-absorbing resin containing iron ions and a preparation method thereof. The method comprises the following steps that 1, a starch paste containing the iron ions is prepared; 2, acrylic acid is neutralized with strong base; 3, under catalytic initiation of a biological enzyme, starch and acrylic acid are subjected to grafted copolymerization; 4, the grafted copolymerization product obtained in the third step is dried and smashed, and the high water-absorbing resin is obtained. According to the high water-absorbing resin containing the iron ions and the preparation method thereof, the biological enzyme serves as a catalytic initiator to prepare starch grafted copolymerization acrylic acid high water-absorbing resin, and the preparation technology has the advantages of being mild in reaction condition, manageable in reaction process, green, environmentally friendly, free of pollution and the like; due to the fact that the high water-absorbing resin contains the trace element iron, the symptoms of chlorosis, caused by the iron deficiency, of plants planted in calcareous soil or soil with the high pH value can be well solved.

The invention discloses special humic acid synergistic fertilizer for summer corn in a calcareous soil area of Shandong province and a preparation method of the humic acid synergistic fertilizer. Thespecial humic acid synergistic fertilizer comprises the following components: in parts by weight, 30-40 parts of polymer-coated controlled release urea, 15-20 parts of physiological acid phosphate fertilizer, 15-30 parts of physiological acid potassium fertilizer and 15-18 parts of manganese oxide-activated humic acid synergistic urea, wherein the mass ratio of nitrogen to phosphorus to potassiumin chemical nutrients of the special fertilizer is as follows: N:P205:K2O = 11:4:6, the content of the manganese oxide-activated humic acid is 5.5-6.0%, and controlled-release nitrogen accounts for 36.4% of the total nitrogen. The special humic acid synergistic slow-controlled release blended fertilizer for summer corn in the calcareous soil area of the western Shandong has pertinence, and is suitable for planting of summer corn in the calcareous soil area of the western Shandong, and significant increase of the yield can be achieved after use.

The invention relates to the field of paeonia lactiflora pall planting, in particular to an insect prevention slow-release fertilizer recipe for paeonia lactiflora pall planting. The recipe comprises the following ingredients in percentage by mass: 25 to 40 percent of organic compound fertilizers, 6 to 15 percent of urea, 1 to 3 percent of clean liquid dung, 15 to 23 percent of slow-release materials, 8 to 12 percent of insect-proof materials and the balance of copper sulfate solution. The invention also discloses a preparation method of the insect prevention slow-release fertilizer recipe for paeonia lactiflora pall planting. The preparation method comprises the following steps of (1) putting one kind or several kinds of materials of sod calcareous soil, poultry dung, humus and traditional Chinese medicine slag into a stirrer; (2) filtering materials generated after the excrement still standing through a filtering screen to obtain clean liquid dung; (3) using a pulverizer for jointly pulverizing one kind or several kinds of materials of granite, gravel, marble, magmatite and sandstone; then, mixing wheat bran, mung bean paste, bean curd slag and alamo trees; uniformly mixing the mixture. The medical value of the paeonia lactiflora pall is maintained, and wide market application prospects are realized.