162results about How to "Suitable for planting" patented technology

The invention discloses an ecological high-yield circulating breeding system and method. The system is characterized by comprising a plurality of fish breeding pools (1) of the area ranging from 200 square meters to 700 square meters, a sealed greenhouse (2) is arranged on the fish breeding pools, an air inlet is formed in one end of the greenhouse, an air supply device (3) is additionally arranged on the air inlet, an air outlet is formed in the other end of the greenhouse, natural water drainage openings (6) are formed in the bottoms of the fish breeding pools, and water supplementing pumps (4) are installed on the periphery of the fish breeding pools and are communicated with a circulating water source (5). By means of the system and method, the green ecological circulation is achieved, no chemical medicine is used in the whole system or the whole breeding process, full-food-chain recycling is achieved for waste water and excrement produced during fish breeding, the commercial high-yield breeding that 50,000 kilograms of snakehead and 25,000 kilograms of bass are produced per year can be achieved, grass carp, chub, yellow catch eel and other high value-added aquatic products can be produced, and meanwhile, completely-green organic rice, fish, shrimp, crab and other by-products high in economic value can be produced in paddy fields.

The invention relates to water retaining slow-release light nutrient soil for roof greening. The nutrient soil comprises the following raw materials in percent by weight: 10 to 30 percent of peat soil, 5 to 15 percent of foundation aggregate, 5 to 15 percent of cinder ash and desulphurization gypsum powder combined material, 10 to 40 percent of functional matrix, 10 to 30 percent of rotten organic fertilizer, 0 to 10 percent of oilseed residue, 1 to 10 percent of microorganism fertilizer, 10 to 30 percent of inorganic adsorbent, 10 to 30 percent of inorganic mineral powder, 5 to 10 percent of an antiseptic insecticide, 1 to 10 percent of beneficial microorganism combined powder, and 0 to 10 percent of a pH (potential of hydrogen) adjuster. The nutrient soil is easy to get in raw materials and low in cots, can retain water for a long time and slowly release fertility, is stable in physical and chemical properties, realizes ecological self-circulation, is durable for a long time and particularly applied to application of organic planting and greening on roofs of cities and towns.

The invention discloses a quasi ecological planting method of dendrobium officinale. The method comprises the following steps of: (1) drilling small holes at a part between two bamboo joints of a live bamboo; (2) taking the fillings such as mosses or sawdusts as a culture medium and filling the culture medium in the cavity of the bamboo through the small holes; (3) planting the seedling of the dendrobium officinale on the culture medium in the cavity of the bamboo through the small holes opened in the step (1); (4) applying a leaf fertilizer once per month; (5) performing a first harvesting, wherein the time from planting to harvesting is 18 months, leaving seedlings more than 3 cm high on the bamboo while harvesting; (6) performing harvesting once in each year for five years; and then planting the new seedlings. The materials used in the quasi ecological planting method of dendrobium officinale are easy to obtain, the yield in each mu of farmland can reach 200-300 kg per year; thus the quasi ecological planting method of dendrobium officinale is suitable for planting dendrobium officinale in tropical and subtropical regions.

The present invention relates to one kind of naturally degradable green flower pot and its making process. The naturally degradable green flower pot is made with crushed plant fiber and adhesive, and the adhesive is oxidized starch, PVA, PCL, amino plastic powder or their mixture. The making process includes the following steps: crushing the material, mixing, adding lubricant and water, stirring, molding to form, polishing and drilling holes. The naturally degradable green flower pot has the advantages of low cost and capacity of degrading naturally, has adjustable use period and strength and is suitable for planting various kinds of flowers especially in large mechanized plantation.

The invention discloses an improved fertilizer for saline and alkaline land and a preparation method of the improved fertilizer. The improved fertilizer for the saline and alkaline land is prepared from the following raw materials in parts by weight: 25-28 parts of maleic anhydride, 15-20 parts of citric acid, 20-30 parts of calcium superphosphate, 10-12 parts of a sodium ion adsorbent, 2-4 parts of a microbial agent, 25-32 parts of fulvic acid, 15-20 parts of a trace element fertilizer, 30-38 parts of a chicken manure fermentation fertilizer, 20-35 parts of peat, 3-5 parts of perlite, 5-8 parts of vermiculite and 20-25 parts of smashed straw particles. The invention further provides the preparation method of the improved fertilizer for the saline and alkaline land. According to the improved fertilizer for the saline and alkaline land, various soil improving measures can be synthesized, effects of reducing salt and alkali for the saline and alkaline land are good, the water content of the soil is high, the water retention property and the fertilizer retention property of the soil are good, besides, the survival rate of planted plants is high, and virtuous cycle of the soil of the saline and alkaline land is realized.

The invention discloses a fermentation composite fertilizer suitable for greenhouse vegetable planting and a preparation method thereof, belonging to composite fertilizers, and particularly relating to an organic fertilizer with addition of bacterial cultures. The fermentation composite fertilizer is characterized by being prepared through aerobic fermentation of microbial inoculum by taking alcohol anaerobic tank mud as a main raw material; and the fermentation composite fertilizer comprises the following raw materials in weight fraction: 680-810 the alcohol anaerobic tank mud with water content of 50-55wt%, 10-15 coal ash, 60-70 coal dust, 50-60 phosphor gypsum, 3-5 potassium chloride or potassium sulfate, 9-11 urea, 45-55 ground phosphate roc, 1.5-2 streptomyces microflavus and 1.5-2 multi-element composite enzyme microbial inoculum. The invention provides the resource-saving and environment-friendliness type biological organic fertilizer which can be used for increasing vegetable quality, improving soil, supplying balanced fertilizer, controlling loss of inorganic fertilizer, protecting the environment, ensuring that vegetable products reach a green food standard and carbon-sourced substances and microbial bacteria in the organic fertilizer achieve the effects of physiological stimulation and metabolism reinforcement for crops. In addition, the organic fertilizer has complete nutrition.

The invention provides an integrated processing method of garbage landfill. The method comprises: 1, preparation of a field area, comprising defining a boundary and dividing blocks; 2, arrangement of collection devices of field area leachate, wherein the leachate collection devices are arranged by using each block as a unit; 3, internal aeration treatment of specific field area, comprising supplying gas into landfill layers to promote metabolism of aerobic microorganisms, thereby rapidly degrading organic matters in the landfill layers, so that the landfill layers are enabled to reach a stable state in a relatively short time; 4, circulation and recharging treatment for the leachate, wherein due to huge activity of the aerobic microorganisms, the garbage landfill subjected to internal aeration treatment generates a relatively large amount of water, and thus generates much more leachate than the garbage landfill free of internal aeration, and the leachate is recharged to a field area which has been subjected to the internal aeration treatment and become mineralized waste; and 5, vegetation establishment in the blocks after the internal aeration treatment.

The invention discloses a method for planting paeonia lactiflora in a saline-alkali area, and relates to the technical field of planting of the paeonia lactiflora. The method comprises the following steps: (1) amelioration of saline-alkali land; (2) planting of auxiliary plants; (3) digging of planting holes; (4) seedling raising of seeds of the paeonia lactiflora; (5), transplanting; and (6), daily management. The method provided by the invention improves a survival rate and growth speed of planting of the paeonia lactiflora in the saline-alkali land, improves ornamental value and beautifiesthe environment.

The invention discloses an ecological protecting method for a low liquid limit powdery clay side slope and relates to the technical field of protection of the low liquid limit powdery clay side slope. The method comprises: trimming a side slope; covering the side slope with a base material layer; sowing a seed layer; covering the seed layer with a non-woven fabric; carrying out maintenance; removing the non-woven fabric and the like. The base material layer contains low liquid limit powdery clay digging soil generated by building a road, straw fiber which is subjected to compost treatment in advance, indigenous plant seeds, farm manure, a composite fertilizer, super-absorbent resin and polyacrylamide; the seed layer comprises indigenous plant seeds; the raw materials are wide in source and low in cost, the method is simple in construction process, good in side slope protecting effect and suitable for being applied to ecological protection of the low liquid limit powdery clay side slope formed by projects such as traffic, construction, municipal administration, water conservancy and the like in a large area.

The invention discloses a method of preparing a bio-organic fertilizer by utilizing waste residue caused in process of producing starch from cassava. The method comprises the steps of: mixing the following raw materials in parts by weight: waste residue produced by cassava starch, rice mill byproduct, sweet potato rattans, straws, enzyme microorganism and brown sugar for 10-15minutes, controlling the moisture content to be 55-65%, stacking according to strips with the width of 2-3m and the height of 1.2-2m after evenly mixing, fermenting for 2 days under hypoxia or aerobic conditions, turning the stacks once every day, conducting continuous stack turning and high-temperature aerobic fermentation for 5-6 days, and controlling the temperature to be 55-75 DEG C; cooling for one day in bulk stacks, stacking into piles according to the height of 3-6m, fermenting for 20-30 days, and conducting one-time stack turning in 10-15 days; and naturally airing in bulk stacks until the moisture content is lower than 30%, to obtain the bio-organic fertilizer. The bio-organic fertilizer prepared can develop recycling economy, the production cost and environment cost of enterprises can be lowered, the quality and security of agricultural products can be improved, the soil is improved, the environment is protected, and the comprehensive benefit can be increased.

The invention relates to a saline-alkali soil treatment method. Aiming at saline-alkali soil with higher salt content, the following treatment steps are applied: A, carrying out bamboo fiber fermentation; B, ripping; C, drawing water to water soil; D, adding humid soil; E, ripping again; F, drawing water to water soil again; G, air-drying soil,; and the like. Therefore, the pH value in the saline-alkali soil is improved to be beneficial for planting crops.

The invention belongs to the technical field of plant genetic engineering and discloses application of a rice phosphate transport protein gene ORYsa;Pht1;4. Root specific expression of the rice phosphate transport protein gene ORYsa;Pht1;4 refers to a root specific expression gene which is discovered in paddy rice for the first time. The gene can be applied to the development of a rice variety which does not contain any genetically modified ingredient in paddy rice particles, can be eaten trustingly and increases the utilization ratio of available phosphorus in soil.

The invention belongs to the field of polluted soil recovery techniques and discloses a phytoremediation method for the soil polluted by phthalic acid ester. The method comprises the following steps: (1) crushing and flattening the soil, ditching, furrowing, applying a base fertilizer, and irrigating the soil by water until the soil is wet; (2) adding nutrient soil or a culture medium into each cave before seeding, carrying out water spraying, seeding corn seeds, and covering the seeding corn seeds with nutrient soil; (3) carrying out soil transplanting when 3-4 main leaves grow from a seedling, and keeping the soil moist; (4) harvesting corn plants before a heading stage of corns. According to the phytoremediation method, the degradation of the phthalic acid ester is promoted by virtue of the cooperation of a corn root system and rhizosphere microorganisms, so that the removal rate in the soil reaches 86%, and the efficient removal of the phthalic acid ester in the soil is realized; after the corns are harvested, stems and leaves can be taken as feeds and have economic benefits; the growth of the corns is rapid, the root system is developed, the biomass is large, and the phthalic acid ester in the soil can be effectively removed; the phytoremediation method is applicable to the recovery of the wide-range middle-concentration and low-concentration polluted soil polluted by the phthalic acid ester.

An organic fertilizer suitable for tomato growth is characterized by being composed of the following raw materials in parts by weight: 10 to 15 parts of rotten tree bark, 6 to 8 parts of cotton seed hull, 8 to 10 parts of peanut hull, 6 to 10 parts of dry cow manure, 16 to 20 parts of dry mud, 4 to 6 parts of zeolite powder, 0.05 to 0.08 part of biological fermentation inoculant, 1 to 2 parts of calcium bicarbonate, 0.2 to 0.4 part of sodium humate, 0.1 to 0.3 part of fulvic acid, 0.04 to 0.06 part of manganese sulfate, 0.02 to 0.05 part of ferrous sulfate, 2 to 3 parts of urea, 0.4 to 0.5 part of auxiliary agent, and a proper amount of water. The fertilizer is suitable for tomato growth, and is prepared by fermenting rotten tree bark, cotton seed hull and peanut hull and then adding inorganic materials into the fermented mixture. Chemical agents are added so as to implement elements (N, P, and K) which are required during the plant growth process. The organic fertilizer must be the development core of fertilizers in the future.

The invention relates to a cultivation method for potted egg fruits. The cultivation method mainly includes selecting grafted egg fruit seedlings of 1-3 years old, trimming and potting the grafted seedlings, and performing shading, fertilizing, insect prevention, dwarfing, modeling, blossoming promotion, fruit retention and the like after potting to enable the potted egg fruits to have ideal fruiting shapes. The cultivation method for the potted egg fruits is simple to operate and low in cost, the problem of low fruiting rate of egg fruits is solved, and the potted egg fruits are attractive in appearance and have high ornamental value.

The invention discloses a method for selecting and breeding improved variety types of walnuts and belongs to the technical field of agriculture and biology. The method comprises steps of rootstock seedling selecting and breeding, scion collecting and processing, grafting, transplanting to land. The scions are selected from superior mother trees in native soil. The improved variety types of walnuts selected and bred after inlay-bark-tongue grafting has following advantages: good yield ability, large size, good appearance and early ripeness. The walnuts grow well especially in dry conditions of hilly areas, show properties of good drought tolerance, cold tolerance and disease resistance, and are suitable for promoting and planting in similar area. Green fruits of the improved variety types of walnuts are suitable for sale. The thickness of shells is suitable for machining. The walnuts are storable and transportable. The method promotes the development of walnut industry and increases the improved variety degree of walnut production.

The invention discloses a method for breeding grubs with fermented cow dung, and belongs to the technical field of grub breeding. The method for breeding the grubs comprises the steps of culture medium preparation, egg breeding, egg collecting, staging breeding, grub adult cultivation and the like. The cow dung is selected for breeding the grubs on a large scale, the breeding method is simple, convenient to use and low in cost, animal waste is utilized, pollution to the environment can be reduced, and remarkable economic benefits can be achieved. According to the method, the breeding density,the breeding condition, breeding feed preparation and grub screening and separating are studied, and the grubs can be bred intensively.

The invention belongs to the saline land improvement technical field, and especially relates to a saline land improvement method and improvement system; the method comprises the following steps: 1, trenching; 2, draining; 3, isolation; 4, soil refilling; 5, fresh water irrigation; 6, laying organoclay; the system comprises a trench, and the trench comprises a drainage device, an isolation layer and a soil layer arranged in sequence from bottom to top; the drainage device comprises a plurality of salt collection pipes and salt discharge pipes connected with the salt collection pipes; the salt discharge pipe is provided with a salt discharge valve; a waterproof layer is arranged on an inner side of the trench; the method is simple in steps, easy to operate, can effectively reduce saline-alkaline level in the saline land, is suitable for crops plantation, low in improvement cost, and an improvement effect lasts in a long time.

The invention provides a desert improver, which can realize water and fertilizer retention, provide multiple mineral nutrients like phosphorus, potassium, calcium, magnesium and silicon required by plant growth, and solve the soil fertility problem during planting development or at the early stage of planting restoration. The desert improver is suitable for vegetation damage or degradation causedby over grazing, excessive deforestation, grassland reclamation and continuous farming or other human factors under certain rainfall or irrigation conditions, or restoration and desertification process reversal of desert or immobile sand that is located on the edge of the desert or around oasis and serves as the foundation of a planting field parcel, and can realize a planting effect fitting waterand fertilizer resource conditions. The desert improver is prepared from the following raw materials by mass: 18-30 parts of phosphate ore; 3-10 parts of potassium mica; 2-4 parts of bentonite or expanded vermiculite; 2-5 parts of illite; 35-60 parts of coal gangue; 2-5 parts of an organic fertilizer; and 1-2 parts of wood flour.

The invention discloses an anti-pneumatic film type fruit tree rainproof facility. The facility consists of wire pressing ground anchors, wire supporting ground anchors, boundary stay bars, longitudinal bracing wires, film pressing wires, a roll-up unit scroll, an electric roll-up unit, an arch bar or film supporting wire, a rainproof ventilation plastic film, a top ridge, a film fixing clamping groove, boundary struts, middle spines, a rainproof covering plastic film, and a plastic clamp; and the facility has a bar and cable combined structural system combining rigidity and flexibility. The anti-pneumatic film type fruit tree rainproof facility can realize the automatic exchange of air inside and outside the facility, the air inside the facility automatically jacks up the rainproof ventilation plastic film to exhaust when the internal pressure of the air is greater than the external pressure, and the rainproof ventilation plastic film droops due to the action of gravity to recover the original shape when the internal pressure and the external pressure are balanced; years of experiments show that the facility can safely stand the test of high wind and heavy rain in northern autumn; and the facility has the characteristics of rainproofness, high ventilation efficiency, no building pollution, simple construction, sturdiness and durability, convenience in use and the like.

The invention discloses a plant half-naked planting method for improving the purification efficiency of surface flow constructed wetlands substantially. According to the plant half-naked planting method, a wetland bank with a water inlet pipe and a water outlet pipe is prepared; and the method also comprises the following steps of: 1) preparing a field, namely making the bottom of an implementation area to meet a seepage-proofing requirement, and preparing the field; 2) piling up a furrow, namely piling up mutually-parallel soil ridges along the direction of designed water flow in the smoothed implementation area, wherein the space between the soil ridges ranges from 0.3 to 1.0 meter, and the height of the tops of the soil ridges is 5 to 15 centimeters lower than a design water level; 3) selecting plants with shallow root systems as wetland plants; and (4) planting the wetland plants, namely planting the wetland plants side slopes on two sides of each soil ridge in a staggered mode, wherein the space among the wetland plants on the side slope on each side ranges from 0.6 to 2.0 meters. According to the plant half-naked planting method, the purification efficiency of the surface flow constructed wetlands can be improved substantially while various advantages of the conventional surface flow wetlands are reserved.

The invention discloses a pest control method of watermelons. The pest control method comprises following control steps of: (1) seed sterilization: a. laying out and exposing watermelon seeds in the sun for 3 to 5 hours and flipping watermelon seeds one time per hour; b. putting soaking watermelon seeds into saline water at the concentration of 8 to 12% for about 0.5 to 1 hour; (2) cleaning of a melon field: thoroughly removing weeds in the melon field and the periphery of the melon field in the range of 5 to 8m and scattering 120-150g of lime powder per square meter and scattering 180 to 250g of sulphur powder per square meter two days later; (3).seeding stage: a. diluting ningnanmycin at the concentration of 1.5 to 2.5% for about 300 to 350 times, controlling once every 5 to 7 days by spraying and spraying 3 to 4 times; b. diluting 20g of a Jinjier wilt killer by utilizing water for 12 to 15Kg, controlling once every 10 to 12 days by spraying and spraying 2 to 3 times; and (4) flowering phase: a. diluting azadirachtin at the concentration of 0.2 to 0.4% for 800 to 1200 times, controlling once every 10 to 12 days by spraying and spraying 4 to 6 times; b. diluting the Jinjier wilt killer by utilizing water for 8 to 12 Kg, controlling every 8 to 10 days by spraying and spraying 2 to 3 times. The pest control method of watermelons is adopted in order to effectively control pests.

The invention relates to the field of agricultural product plantation and specifically discloses a cultivation method for high-quality and high-yield leaf-oriented ginkgo. The method comprises the steps including land selection and preparation, seed processing, sowing, thinning, field management and harvesting. The method disclosed by the invention is characterized in that complicated processes of traditional seed cultivation and cutting seedling transplantation are reduced through direct sowing, and duration for first-time leaf production of the leaf-oriented ginkgo is shortened; through the periodic thinning, continuous growth and soil fertility supply of ginkgo trees are ensured, thinned seedlings can be re-transplanted for orchard establishment, land used for cultivation of ginkgo seedlings is reduced, and a land use rate is increased; and through rational close planting, the acre yield of the leaf-oriented ginkgo is increased, leaf production years of the ginkgo are prolonged, quality of ginkgo leaves is ensured, high economic benefits are obtained, and the method is applicable to promotion and plantation in Hubei Province.

The invention discloses a method for selecting the hybrid seeds of Brassica juncea var. multiceps. Yongxue No.3 of Brassica juncea var. multiceps is bred through hybrid seed production of Ningbo fine-leaf yellow Brassica juncea var. multiceps cytoplasm male sterile line 07-50A and fine-leaf mustard 07-2 inbred line Brassica juncea var. multiceps as a female parent and a male parent respectively. The Ningbo fine-leaf yellow Brassica juncea var. multiceps cytoplasm male sterile line 07-50A is obtained by hybridizing a cytoplasm male sterile source as a female parent and Ningbo fine-leaf yellow Brassica juncea var. multiceps to obtain an F1 generation and carrying out backcross breeding by using the Ningbo fine-leaf yellow Brassica juncea var. multiceps as a recurrent parent; and the male parent fine-leaf mustard 07-2 inbred line Brassica juncea var. multiceps is obtained by the inbred purification of a local variety of fine-leaf mustard having excellent comprehensive properties. The new species Yongxue No.3 obtained through the method has the advantages of high output, strong disease resistances, high stalk-leaf ratio, excellent processing property, and suitableness for the plantation of winter Brassica juncea var. multiceps.

The invention discloses a microbial fertilizer suitable for saline-alkali soil, wherein composite microbial bacteria are inoculated into a salt-tolerant culture medium according to a volume ratio of 3-5%, and solid fermentation is performed until the concentration of microorganisms reaches 3.5 billion strain / g so as to obtain the microbial fertilizer suitable for saline-alkali soil, wherein the components of the salt-tolerant culture medium comprise corn cob powder, peat soil, bean meal, light calcium carbonate, trehalose and sodium alginate. According to the present invention, with the microbial fertilizer suitable for saline-alkali soil, the problems of rare fertilizers for saline-alkali soil, poor fertilizer efficiency and the like in the prior art can be solved, and the nutrients of saline-alkali soil can be increased, such that the saline-alkali soil can be suitable for growing ordinary crops in a short time.

The invention belongs to the field of an improvement of a saline-alkali land, in particular to a planting method of saline-alkali land greening. The invention aims at overcoming the defects of an existing saline-alkali land improvement method and a saline-alkali land greening planting method. In order to achieve the purpose, the planting method includes removing surface soil of the saline-alkali land, laying turfy soil on removed surface soil, and planting green plant on laid turfy soil. The turfy soil is fermented by implanting zymophyte after straw is smashed, fermentaiton time is 48 hours, after the straw does not rot completely, remains of 30% are reserved, then micro tungsten essence is mixed, finally block soil is mixed, water with tungsten essence of 40% is mixed, spray technology is utilized, four spray is divided, and the planted greening plant is Dallis grass. The planting method of the saline-alkali land greening has the advantages of being capable of comprehensively utilizing the saline-alkali land in large area, adjusting a structure of the green plant of the saline-alkali land, expanding a coverage area of the green plant of the saline-alkali land, and protecting and improving ecological environment.

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 discloses a lawn produced from municipal sludge compost mixed matrixes and a preparation method of the lawn. The preparation method comprises the following steps that air-dried decomposed coarse municipal sludge compost is selected for screening, and the grain diameter of the screened compost ranges from 2 mm to 5 mm; the compost is mixed with any two of rice chaff, vermiculite and perlite, and the mixture is stirred evenly to obtain the mixed matrixes; the land is leveled; insecticide is sprayed; an isolation layer is laid; the isolation layer is evenly covered with the mixed matrixes; grass seeds are evenly sown and are covered with the mixed matrixes for 0.5 cm after seeding is completed; the mixed matrixes are covered with a sunshade net. By means of the preparation method, the quality of the lawn can be improved, production cost and planting cost can be lowered, and land and water resources can be saved; moreover, the water control effect can be consolidated, energy conservation and emission reduction can be promoted, a large amount of excess sludge generated in the sewage disposal process can be effectively eliminated, pressure from gradual deficiency of garden matrixes and unstable sources can be relieved, and therefore the preparation method is a sustainable sludge recycling method with extremely high application value.

The invention discloses a method for renovating and repairing soil in an iron ore area. The method comprises the steps that a soil excavating device excavates the soil in the iron ore area; excavatedsoil is guided into the separation mesh enclosure by the guide plate, meanwhile, the separation mesh enclosure rotates and enables the soil to be smashed, so impurities such as stones are conveyed tothe direction of the discharging end of the separation mesh enclosure, and the other soil falls down through the discharging notch; impurities such as stones are discharged through the impurity discharging mechanism; soil and iron ore impurities fall down into the soil beating and crushing mechanism through the discharging notch to be beaten and crushed; the crushed soil downwards falls onto the mounting shell; meanwhile, the belt wheel connecting assembly pulls the soil to move through the scraping plate, the soil finally falls off and returns to the ground again, the iron ore impurities areattracted to the outer surface of the mounting shell through the magnetic plate, and when the iron ore impurities move to the position over the iron ore storage shell, the iron ore impurities can fallinto the iron ore storage shell downwards due to the fact that the non-magnetic plate replaces the magnetic plate at the moment.

The invention discloses a special fertilizer for improving disease resistance and yield of navel orange and a preparation method thereof. The fertilizer comprises the following raw materials by weight: 50-58 parts of mixed enzyme, 20-25 parts of molasses alcohol waste liquid, 12-16 parts of Astragalus adsurgens Pall., 26-30 parts of pine and cypress ash, 12-15 parts of a Chinese medicine, 5-7 parts of a shrimp powder, 8-10 parts of a walnut kernel shell powder, 12-15 parts of Ruditapes philippinarum powder, 2-4 parts of dandelion pollen, 0.8-1.0 part of ammonium molybdate, 1.6-2.2 parts of potassium citrate, 3.2-3.6 parts of sodium lignosulfonate, 0.5-0.8 part of selenium-enriched yeast, 0.5-0.8 part of actinomyces, 0.3-0.5 parts of potassium bacteria, and 1.2-1.6 parts of Bacillus. The special fertilizer can improve the structure of soil for orange cultivation, increases the yield of navel orange planting; the navel orange is juicy and delicious; the invention greatly improves the economic benefit of farmers planting navel orange.