42results about How to "Balanced fertility" patented technology

A natural multi-function mineral complex fertilizer is characterized in that the fertilizer is made from the raw materials with the following weight percentages: 28-33% of urea, 15-25% of monoammonium, 12-17% of potassium fertilizer, 30-45% of attapulgite powder and 5-10% of humic acid by the preparation method of the conventional fertilizer. The attapulgite powder is a nano-grade porous nonmetallic mineral substance with physical properties of strong adsorbability, cation exchange property, large specific surface area, and the like, wherein, the water absorption rate is equal to or more than 60%, the cation exchange capacity is equal to or more than 20mmol / 100g, and the specific surface area is equal to or more than 120m<2> / g; meanwhile, the attapulgite powder is rich in various nutrient elements of potassium, phosphor, calcium, magnesium, sulfur, iron, copper, zinc, molybdenum, manganese, boron, iodine, selenium, and the like; the humic acid can inhibit the activities of urase, and slow down the decomposition of the urea, and the complex compound produced can gradually decompose and release nitrogen, thus prolonging the fertilizer efficiency. The natural multi-function mineral complex fertilizer has the advantages of being applicable to all crops, and realizes the aims of reducing the fertilizer consumption, enhancing the utilization ratio of the chemical fertilizer, reducing agricultural production cost, increasing the yield and quality of farm products, and improving the soil.

The long acting composite fertilizer consists of nitrogen fertilizer 9-25 wt%, phosphate fertilizer 10-20 wt%, potash fertilizer 8-15 wt%, zeolite 5-20 wt%, weathered coal or turf 5-30, and proper amount of plant ash and plant extracting synergistic water solution. The long acting composite fertilizer has balanced nutrients, lasting action, high utilization and easy absorption, so that it has the functions of increasing yield, raising effect and promoting maturity.

The invention belongs to the technical field of agriculture, and in particular relates to a method for regeneration cultivation of cherry tomatoes. The method is characterized by comprising the following steps: (1) selecting seeds; (2) raising seedlings; (3) performing soil preparation; (4) performing transplantation and field management; (5) performing pruning; (6) culturing roots for rejuvenation; and (7) performing regeneration trimming. According to the method provided by the invention, a mode of leading seedlings and regeneration trimming of planting is reasonably planned, and a fertilizer is reasonably applied in different processes of a whole planting process, so that the seedlings after field planting can survive easily, rooting and germination are promoted, the survival rate is ensured, and the planting quantity per mu is improved; after regeneration trimming and reasonable fertilization, the fruits picked in two times are ensured to be high in sugar content, and the size of the fruits is not decreased, thereby further increasing the yield; and a chemical fertilizer containing trace elements including zinc, iron and the like is additionally applied in fertility management in the planting process to improve the content of the trace elements in the fruits.

The invention relates to a use method for a soilless culture box tank for dioscorea opposita. The use method includes the following steps that a, a cultivation medium is prepared and disinfected; b, the box tank, a medium collecting position and a culture box are cleaned; c, the culture box is installed and filled with the medium; d, dioscorea opposita seedlings are transplanted; e, cultivation and management are conducted; f, the dioscorea opposita is harvested. The use method has the technical advantages that the action principle is clear and easy to understand, can be grasped by people of all ages and both sexes, and is not limited by the scientific and technological culture level; the specific soilless cultivation medium is adopted for cultivation of the dioscorea opposita, organic matter in the medium is high in content, nutrients are balanced, the purpose of the high yield of the cultivated dioscorea opposita is achieved, the average per unit yield is 4,162-5,766 kg / 667 m<2>, the adopted medium is disinfected with formalin or manually disinfected in a workshop or replaced in the workshop, and disease and pest damage caused by a cultivation medium for the dioscorea opposita and the negative effects caused by continuous cultivation are avoided.

The invention discloses a planting method for improving the dragon fruit yield. During the dragon fruit mature period, organic fertilizers are spread in March, August and December; a light supplementing lamp is used at every night from 18 o'clock in the evening to 11 o'clock in the evening in March to May and October to December; the supplementing lamp is used at every night from 17 o'clock in theevening to 2 o'clock in the morning in January to February; 0.5 to 1h of the light supplementing time is increased in cloudy days or rainy days. The mixed use method of light supplementation at nightand organic fertilizer is used; the light supplementing time of the dragon fruit can be prolonged; the blooming and fruiting batches of the dragon fruit can be increased. Bacillus amyloliquefaciens,nitrogen-fixing bacteria and PGPR bacteria are added in used organic fertilizers; the effects of improving the soil physicochemical properties, enhancing the soil fertility and assisting the plant nutrition absorption are achieved, wherein the bacillus amyloliquefaciens, the nitrogen-fixing bacteria and the PGPR bacteria have the effect of enhancing the fertilizer effect release on N, P, K, B, Seand Zn; the fertility balance of the soil is realized when the fertility is improved.

The invention discloses nutrient soil for cultivation of succulent plants and a preparation method of the nutrient soil and relates to the technical field of planting. The nutrient oil comprises raw materials as follows: leaf mold, river sand, modified bentonite, sodium selenite, sodium borate, folic acid, diammonium phosphate, ferrous sulfate, biochar and collected bone powder. The preparation method of the nutrient soil comprises steps as follows: water and a disinfectant are added to the leaf mold, the river sand, modified bentonite, biochar and the collected bone powder and mixed uniformly; then the materials are subjected to curing, disinfection or exposure treatment; finally, the materials are mixed uniformly with remaining raw materials. The nutrient soil for cultivation of the succulent plants can prevent soil at roots of the plants and underlying soil from hardening, is good in permeability and good in fertilizer and water retention capacity, has adequate nutrients and is suitable for being popularized and applied.

The invention discloses a culture management method of emperor mandarin. The method includes the steps of selecting an address for preparing a land, selecting seedlings, transplanting the seedlings, conducting management after transplanting, managing fertilizer and water and conducting trimming. In the tip releasing stage, the principle of one tip, three fertilizer and three pesticide is adopted,redundant tips are trimmed away within two days after high-nitrogen water-soluble fertilizer is applied in a sprinkled mode for the first time before bud promoting, high-nitrogen composite fertilizeris scattered for the second time for promoting the growth of branches and buts when the tip germinates to be 1 cm long within about 5-10 days, and high-potassium functional water-soluble fertilizer isapplied for the third time for promoting new tips to be aged. The culture management method is scientific and reasonable, fertilizer and water management make fertility of plants balanced and long lasting, the fruiting rate is increased, and the yield and quality of the emperor mandarin are greatly improved.

The invention belongs to the technical field of organic fertilizer processing, and specifically relates to a preparation method of an organic fertilizer. The preparation method comprises the following steps: mixing organic wastes, tempering, carrying out composting fermentation, applying microelement additives and mixing, and then adding a high-voltage electric shock nitrogen-adding procedure. The preparation process of the organic fertilizer is carried out in a fruit and vegetable planting greenhouse, the relative humidity of an electric shock environment is 60-85%, the pH value of a compost is 5.5-6.5, and the water content of the compost is 40-50%; the electric shock conditions are as follows: the voltage intensity is 20-100kv, the pulse width is 0.1-5ms, the pulse duty factor is 30-60%, and the treatment time is 20-50min. The organic fertilizer prepared by the preparation method disclosed by the invention is simple, efficient, environment-friendly and pollution-free in process, uniform in fertility, lasting, and free from seedling burnt.

The invention relates to a special fertilizer for planting corns. The special fertilizer is prepared from the following raw materials in parts by weight: 30-50 parts of dry mature powder, 30-40 partsof a potassium fertilizer, 30-40 parts of urea, 12-26 parts of algin, 12-26 parts of algae iodate, 30-40 parts of monoammonium phosphate, 30-40 parts of ammonium chloride, 30-40 parts of sapropel, 30-40 parts of a bean cake fertilizer, 30-40 parts of silkworm excrement, 30-40 parts of jasmine residue, 10-20 parts of sweet potato residue, 20-30 parts of peanut root powder, 10-20 parts of radix scutellariae, 20-30 parts of spica prunellae, 12-26 parts of acanthopanax senticosus, 12-26 parts of herba schizonepetae, 10-20 parts of red dates, 12-26 parts of herba houttuyniae, 20-30 parts of honeysuckle flowers, 12-26 parts of cloves, 16-26 parts of organic silicon, 30-40 parts of wormcast and 1.8-2.2 parts of microelements. The fertilizer has the characteristics that the immunity of the corns can be improved, the corn particles are big, uniform and plump, the yield is effectively increased, and the like.

The invention discloses a radix pseudostellariae cultivation method of bee sugar interplantation in forest, comprising the following steps: the cultivation of the bee sugar is planted with 5m line spacing and 3m row spacing; choose loose and fertile and inclined northern dry land as an interplant area for the radix pseudostellariae and then conduct deep ploughing for 20-25 cm, so that the load type is a turtle type; choose hypertrophic, robust radix pseudostellariae earthnut with complete bud head as the earthnut; In the cultivation of the radix pseudostellariae 15 days before, first spray on the load side with 50% phoxim emulsifiable concentrate solution diluted 800 times, 500g per mu; the sowing temperature is 10-16 DEG C. cut a 3-5cm shallow groove on the load side in the cultivation with 15-20 cm line spacing. The radix pseudostellariae seedlings are placed end to end into the shallow groove; mildly loose the topsoil after full seedling emergence and conduct earth up with the combination of ditch cleaning. The earth up thickness is 1-1.5 cm. the radix pseudostellariae cultivation method of bee sugar interplantation in forest has the advantages of making the utmost of unoccupied land resources and promoting soil fertility balance in the process of the radix pseudostellariae cultivation to achieve the effects of short for long and medicine- wood integration.

The invention discloses a capsicum annuum seedling cultivating method which comprises the following steps: 1) planting strawberry and capsicum annuum seedlings alternatively every three years in a greenhouse, preparing soil as a capsicum annuum seedling bed, breeding chicken, ducks and / or geese in the soil preparation alternative dormancy period, so as to obtain a base fertilizer; 2) selecting capsicum annuum seeds which are good in cold resistance and plant type; 3) seeding in the seedling bed; 4) after emergence of seedlings, controlling the day temperature to be about 20-22 DEG C and the night temperature to be 16-18 DEG C; 5) after the seedlings are 3-4cm height and have 2-3 main leaves, controlling the day temperature to be about 22-25 DEG C and the night temperature to be 15-18 DEG C. By adopting the capsicum annuum seedling cultivating method, strawberry and capsicum annuum are planted alternatively in the greenhouse every three years, chicken, and ducks and / or geese are bred in the soil preparation alternative dormancy period, so that uniform soil fertility can be ensured, soil porosity can be increased, ventilation and water retention property of soil can be improved, and by controlling the temperature, water and light, constitution of capsicum annuum seedlings can be improved, the damping-off disease of the capsicum annuum seedlings is reduced, and the survival rate of the capsicum annuum seedlings is increased.

The invention relates to a Chinese yam cultivation movable sleeve made of hard plastic; the movable sleeve is simple in structure, low in making cost, can be repeatedly used for 8-12 years in one investment, and is easy in promotion application; the movable sleeve is simple in usage, principle is simple and understandable, can be handled by men, women, old and young, and is not limited by science and technology culture level of the people; the Chinese yam dual-sleeve cultivation equipment and usage method are provided; the movable sleeve is low in cost, long in duration, wide in application scope, and easy to handle; matrix organic matter is rich and fertility is balanced, so Chinese yam yield is high, breakage rate is low in harvesting, and appearance and quality are good; the practical innovation equipment and usage method are good for Chinese yam modernization industrialization development.

The invention relates to a fertilizer special for jasminum sambac planting. The fertilizer is prepared from the following raw materials by weight: 30-50 parts of dry manure powder; 30-40 parts of a potassium fertilizer; 30-40 parts of urea; 12-26 parts of a cytex; 12-26 parts of algae iodate; 30-40 parts of monoammonium phosphate; 30-40 parts of ammonium chloride; 30-40 parts of sapropel; 30-4 parts of bean cake fertilizer; 30-40 parts of silkworm excrement; 30-40 parts of jasminum sambac residue; 10-20 parts of sweet potato residue; 20-30 parts of peanut root powder; 10-20 parts of scutellaria baicalensis; 10-20 parts of prunella vulgaris; 12-26 parts of forsythia suspense; 12-26 parts of cinnamomum tamala; 10-20 parts of Ziziphus zizyphus; 12-26 parts of Houttuynia cordata; 20-30 parts of lonicera japonica thunb.; 12-26 parts of syzygium aromaticum; 16-26 parts of organosilicon; 30-40 parts of earthworm cast; and 1.8-2.2 parts of trace elements. The fertilizer provided by the invention has the advantages of enhancement of immunocompetence, large, uniform and full grained product, effective increase of output and the like.

The invention relates to a fertilizer special for dragon fruit planting. The fertilizer is prepared from the following raw materials in parts by weight: 30-50 parts of dry feces powder, 30-40 parts ofpotash fertilizer, 30-40 parts of urea, 12-26 parts of algin, 12-26 parts of algae iodate, 30-40 parts of monoammonium phosphate, 30-40 parts of ammonium chloride, 30-40 parts of sapropel, 30-40 parts of bean cake fertilizer, 30-40 parts of silkworm excrement, 30-40 parts of bagasse, 10-20 parts of bee apiary, 20-30 parts of peanut bran, 20-30 parts of scutellaria baicalensis, 20-30 parts of garlic paste, 20-30 parts of selfheal, 20-30 parts of radix sophorae flavescentis, 20-30 parts of schizonepeta, 20-30 parts of red dates, 20-30 parts of houttuynia cordata, 20-30 parts of honeysuckle, 20-30 parts of clove, 20-30 parts of isatis root, 12-26 parts of organic silicon, 2-6 parts of tomatotone and 1.8-2.2 parts of trace elements. The fertilizer special for dragon fruit planting has the features of enhancing immunocompetence, and the like.

The invention discloses a fertilizer containing power plant ash and a preparation method thereof. The invention is characterized in that the fertilizer is prepared from the following components in parts by weight: 300-500 parts of power plant ash, 25-30 parts of phosphogypsum powder, 150-200 parts of wood meal, 150-200 parts of grass meal, 100-150 parts of kieselguhr, 60-80 parts of ammonium chloride, 50-65 parts of zeolite, 100-180 parts of corn straw, 25-30 parts of ferrous sulfate, 40-60 parts of potassium chloride, 30-45 parts of magnesium oxide, 15-45 parts of kaolin, 20-30 parts of borax, 50-60 parts of starch and 6-8 parts of soil conditioner. By using the power plant ash as the potassium source of the fertilizer, the fertilizer has the advantages of balanced proportions of N, P and K and comprehensive and balanced fertility, has an obvious promotion action on the growth of crops, and improves the yield and quality of the crops. The soil improver contains bowlder which contains abundant microelements beneficial to the human body, and the microelements are absorbed by the crops and converted through the food chain so as to be beneficial to the human body; and meanwhile, the adsorption component can effectively adsorb and cure toxic heavy metal elements in soil, and reduce the heavy metal elements absorbed by the crops. The fertilizer can enhance the crop yield.

The invention relates to a nursery substrate for improving the survival rate of dragon fruit seedlings. The nursery substrate is prepared from the following components in parts by weight: peanut bran,attapulgite, an insecticide, a water retention agent, urea, a calcium magnesium phosphate fertilizer, diammoniium sulfate, potassium sulfate, zinc sulfate, sodium selenate, bacillus amyloliquefaciens, bacillus subtilis, nitrogen-fixing bacteria, and sand soil. The nursery substrate for improving the survival rate of dragon fruit seedlings provided by the invention is safe, environmentally friendly, non-toxic and tasteless, does not pollute plants, soil and groundwater, and has no residue and does not damage the soil structure. The nursery substrate provided by the invention contains the insecticide, which can reduce the damage of the bacteria in the soil to the seedlings and improve the survival rate.

The long acting composite fertilizer consists of nitrogen fertilizer 9-25 wt%, phosphate fertilizer 10-20 wt%, potash fertilizer 8-15 wt%, zeolite 5-20 wt%, weathered coal or turf 5-30, and proper amount of plant ash and plant extracting synergistic water solution. The long acting composite fertilizer has balanced nutrients, lasting action, high utilization and easy absorption, so that it has the functions of increasing yield, raising effect and promoting maturity.

The invention relates to a soilless culture box trough for dioscorea opposita. A culture box trough body (1) comprises unit culture troughs (2), medium collection boxes (3) and culture boxes (4). The soilless culture box trough for dioscorea opposita is characterized in that the culture box trough body (1) is formed by connecting the unit culture troughs (2) in parallel, the medium collection boxes (3) are connected to the lower portions of the two ends of the unit culture troughs (2), and the culture boxes (4) are connected in series and then arranged in the unit culture troughs (2). The soilless culture box trough for dioscorea opposita has the advantages that the equipment structure is simple, the box troughs are made of cement, the culture boxes and components thereof are made of hard plastic, manufacturing cost is low, the soilless culture box trough can be repeatedly used for 8-12 years at one-off input, and application and popularization are easy. According to the soilless culture box trough for dioscorea opposita, sliding wheels and sliding tracks are combined to bear the gravity of the culture boxes and soilless culture media, a lot of labor used for soil excavation in dioscorea opposita harvesting in a traditional culture method is omitted, labor is saved by 55-68%, and meanwhile damage caused to dioscorea opposita tubers in dioscorea opposita harvesting in the traditional culture method is reduced.

The invention relates to the technical field of planting, in particular to a jasmine flower planting method. The method is characterized by comprising pot culture and transplanting. The method has theadvantages that the culture survival efficiency can be improved, jasmine flower roots can also be protected from damage during transplanting, and the survival rate of jasmine flowers during transplanting is greatly increased.

The invention relates to an ammonia water method compound fertilizer preparation process, which comprises: (1) respectively crushing sweet potato residue, vinasse, edible fungus residue, monosodium glutamate residue and cake meal to obtain a material 1; 2) adding monoammonium phosphate, urea, ammonium chloride, attapulgite, EDTA chelated zinc, amino acid chelated iron, a biological agent, a mineral fertilizer, potassium chloride and the material 1 into a mixer, uniformly stirring, conveying into a grinding machine through a metering belt, and grinding to obtain a material 2; (3) adding a acidinto the material 2 fed into a granulator, and introducing ammonia gas for ammonia acid granulation to obtain a material 3 with proper particle specification; and (4) putting the material 3 into a drying machine, introducing hot air for heating, evaporating moisture to meet the moisture requirement of the product, cooling, screening, coating and packaging to obtain the finished product. The prepared compound fertilizer has the beneficial effects of being good in fertilizer compatibility, balanced in fertility, stable in property, not prone to deliquescence, capable of improving the physical and chemical properties of soil, not prone to causing soil hardening, free of pollution to the environment, lasting in fertilizer efficiency, high in fertilizer utilization rate and the like.

The invention provides a multi-shovel plowing machine which is characterized in that support arms are fixed at two ends of a cross beam of a rack, a support part is mounted at the joint, n convex parts extend out of one side of the cross beam and are provided with convex lugs I of pin shafts I, a driving frame is fixed between the two support arms through two driving plates at two ends, and the tail ends of two legs of a propeller strut of a traction frame are mounted on the driving frame; a crankshaft of a plowing mechanism is composed of a center shaft I, n middle center shafts II, n handle cranks, n driving piece driving shafts I and two driving shafts II, n swing piece rocker arms are hinged to pin shafts I of n protruding piece lugs I respectively, one end of an n rod piece connecting rod of a plowing shovel is hinged to the middle of the n driving piece driving shafts I and the two driving shafts II, the other end of the n rod piece connecting rod is hinged to the pin shafts I of the n swing piece rocker arms, each shovel head is mounted in a longitudinal round hole of the connecting rod through a shovel handle; and a speed reducer of the driving device is connected with the center shaft I, and an input shaft is connected with a transmission shaft through a universal joint. The multi-shovel plowing machine replaces manual work and is high in efficiency, and soil is balanced after plowing.

The invention relates to special fertilizer for planting peanuts. The special fertilizer is prepared from the following raw materials in parts by weight: 30 to 50 parts of biogas waste fertilizer, 30to 40 parts of potash fertilizer, 30 to 40 parts of urea, 12 to 26 parts of algin, 12 to 26 parts of algae iodate, 30 to 40 parts of ammonium dihydrogen phosphate, 30 to 40 parts of ammonium chloride,30 to 40 parts of sapropel, 30 to 40 parts of soya-bean cake fertilizer, 30 to 40 parts of silkworm feces, 30 to 40 parts of arabian jasmine flower residues, 10 to 20 parts of sweet potato wastes, 20to 30 parts of peanut root powder, 12 to 22 parts of scutellaria baicalensis, 12 to 22 parts of spica prunellae, 12 to 22 parts of herba pterocephali, 20 to 30 parts of radix linderae, 12 to 22 partsof fructus jujubae, 12 to 22 parts of sapindus mukorossi gaertn, 20 to 30 parts of flos lonicerae, 12 to 22 parts of flos caryophylli, 16 to 26 parts of organosilicon, 30 to 40 parts of wormcast and1.8 to 2.2 parts of trace element. The peanuts disclosed by the invention have the characteristics of capability of enhancing immunity and improving the yield, great length, well proportion, full particles and the like.

The invention discloses a special water-retaining slow-release fertilizer for pitayas. The special water-retaining slow-release fertilizer for the pitayas is prepared by mixing and granulating the following components in parts by weight, functional slow-release granules, a water-retaining agent, urea, a calcium magnesium phosphate fertilizer, diammonium sulfate, potassium sulfate, zinc sulfate, iron sulfate, bacillus amyloliquefaciens, bacillus subtilis and nitrogen-fixing bacteria, and then coating:. The special water-retaining slow-release fertilizer for the pitayas is long in fertilizer efficiency, and loss of the fertilizer due to volatilization and leaching can be greatly reduced, so that the limited fertilizer and water can be fully absorbed and utilized by plants so as to achieve water and fertilizer integration and soil improvement. Through the application of the water-retaining slow-release fertilizer, the farmland irrigation cost can be reduced, so that the purpose of high-efficiency water conservation is achieved. Through the application of the water-retaining slow-release fertilizer, the nutrient utilization rate can be greatly increased, so that pollution to crops andthe environment due to fertilizer application is effectively controlled.

The invention relates to a special fertilizer for mulberry tree planting. The special fertilizer for mulberry tree planting is prepared from the following raw materials in parts by weight: 30-50 partsof dry manure powder, 30-40 parts of a potassium fertilizer, 30-40 parts of urea, 30-40 parts of tea leaf residues, 30-40 parts of monoammonium phosphate, 30-40 parts of ammonium chloride, 30-40 parts of sapropel, 30-40 parts of a bean cake fertilizer, 30-40 parts of silkworm excrement, 30-40 parts of peanut root powder, 10-20 parts of bee hive, 20-30 parts of soybean meal, 20-30 parts of herba andrographitis, 20-30 parts of minced garlic, 20-30 parts of trametes robiniophila, 20-30 parts of cordate houttuynia, 20-30 parts of honeysuckle, 20-30 parts of clove, 20-30 parts of radix isatidis, 16-26 parts of organosilicone, 2-5 parts of sodium cyclamate, seaweed 20-30 parts of algin and 1.8-2.2 parts of trace elements. The special fertilizer for mulberry tree planting has the characteristicsof lasting fertility, capabilities of promoting the healthy and strong growth of mulberry trees and enhancing the immunity and the like.

The invention discloses automatic fertilization equipment capable of achieving annular ditching. The equipment comprises a box body, placement space is formed in the box body, a guide mechanism is arranged in the placement space, the guide mechanism comprises a first connecting rod fixedly connected to the inner wall of the lower side of the placement space, by taking the first connecting rod as the symmetry center, first rotating shaft driving wheels are symmetrically and fixedly connected to the upper end face of the first connecting rod, second connecting rods are rotatably connected to thefirst rotating shaft driving wheels, and first fixed shafts are fixedly connected to the end faces, away from the symmetry center, of the second connecting rods. According to the equipment, the guidemechanism is arranged, annular ditching of different distances can be carried out by controlling the angle of a guide wheel, it is guaranteed that the distances between various positions of a ditch and fruit trees are equal so as to guarantee that fertility of soil is uniform; and in a digging mechanism, digging of annular ditches in different forms can be carried out by controlling ascending anddescending of a digging shovel, and backfilling of soil is carried out so as to guarantee land levelness.

The invention relates to a use method for a soilless culture box tank for dioscorea opposita. The use method includes the following steps that a, a cultivation medium is prepared and disinfected; b, the box tank, a medium collecting position and a culture box are cleaned; c, the culture box is installed and filled with the medium; d, dioscorea opposita seedlings are transplanted; e, cultivation and management are conducted; f, the dioscorea opposita is harvested. The use method has the technical advantages that the action principle is clear and easy to understand, can be grasped by people of all ages and both sexes, and is not limited by the scientific and technological culture level; the specific soilless cultivation medium is adopted for cultivation of the dioscorea opposita, organic matter in the medium is high in content, nutrients are balanced, the purpose of the high yield of the cultivated dioscorea opposita is achieved, the average per unit yield is 4,162-5,766 kg / 667 m<2>, the adopted medium is disinfected with formalin or manually disinfected in a workshop or replaced in the workshop, and disease and pest damage caused by a cultivation medium for the dioscorea opposita and the negative effects caused by continuous cultivation are avoided.

The invention relates to the technical field of fertilizer preparation, in particular to a special fertilizer for star anise as well as a preparation method and application thereof. The special fertilizer for star anise is specifically prepared from the following components in parts by mass: 250-350 parts of urea, 80-120 parts of monoammonium phosphate, 50-70 parts of a calcium magnesium phosphate fertilizer, 150-190 parts of potassium chloride, 4-6 parts of borax, 2-4 parts of zinc sulfate, 4-6 parts of ferrous sulfate and 350-370 parts of chicken manure. The formula of the special fertilizer for the star anise is high in fertilizer efficiency, can improve the soil structure, provides sufficient nutrient substances for normal growth of star anise trees, and also can enhance the disease resistance of star anise trees and promote healthy growth of the star anise trees.

The invention discloses a taxus chinensis controlled release fertilizer. The taxus chinensis controlled release fertilizer comprises the following raw materials by weight: 65-75 parts of potassium polyphosphate, 50-60 parts of urea, 40-60 parts of waste snake mattress material, 20-25 parts of decomposed pig manure, 15-25 parts of controlled release formulation, 8-15 parts of ammonuim humate, 5-10parts of bone meal, 3-5 parts of waste fluid from alcohol, and 1.5-2.5 parts of microelements. The weight ratio of iron to boron to manganese to copper to zinc to molybdenum to chlorine in the microelements is 2:1:2:2:2:(0.02-0.05):2.5. The taxus chinensis controlled release fertilizer promotes the growth of taxus chinensis, and solves the problems of low yield and poor growth of the existing taxus chinensis.

The invention discloses a cultivation method ensuring field growth time of fen-flavor tobacco leaves and belongs to the technical field of the tobacco plant cultivating technology. The method comprises the working procedures of float breeding, soil preparation, ridging, under-membrane transplanting, membrane covering period management, and field management. A seeding period is from the middle ten days of October to the middle ten days of December. A floating disk float breeding method is adopted. Hardening-seedling is conducted for 8-14 days before transplantation. Soil is broken, and moisture in the soil is stored. Soil is prepared, and a field is irrigated. Ridges are built up with 100-120cm row distances. The height of each ridge is 20-30cm. The width of the bottom of each ridge is 75-95cm. Base fertilizer is added at ridging time in a double-strip mode. A transplanting period is from the middle ten days of January to the last ten days of March. Caves are built up with 45-55cm plant distances. The width of each cave is 10-15cm. The depth of each cave is 15-20cm. 1-2kg root locating water is watered on each plant after transplantation. Land membrane is covered. Fertilize plants additionally for two times after transplantation. Seedlings are induced when tops of tobacco seedlings jack the membrane on the 15th-25th day. The field membrane is uncovered when the tobacco seedlings enter the middle flourishing growth period. Ridging, weeding, watering, tip pruning and branch removing are conducted timely. The method can effectively ensure the field growth time of tobacco leaves, improves the output and the quality of tobaccos, increases the accumulation of aroma substances, and strengthens the fragrance style of fen-flavor tobacco leaves.