36results about How to "Achieve high yield and high quality" patented technology

The invention relates to spring maize cultivation, in particular to a dedicated fertilizer for producing green corn and a preparation and an application method thereof.The fertilizer is composed of urine-based nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, medium elements and trace elements; in the preparation method, the solid raw materials with a grain size of 1.5-4.5mm are selected; then the medium elements are added to humic acid or humic acid salt accounting for 60-100% of the mass percent of the medium elements to be mixed; afterwards, trace elements are added and mixed with the mixture, cementing agent is used for pelleting and producing solid raw materials with a grain size of 1.5-4.5mm for standby use; finally, the medium elements and trace elements mixed for pelleting are uniformly mixed with the urine-based nitrogenous fertilizer, phosphate fertilizer and potash fertilizer.The dedicated corn fertilizer is applied to the corn spring sowing as base fertilizer at one time and no after manuring is not needed.The use level of the urea-based nitrogenous fertilizer in the fertilizer of the invention proportion of the urea-based nitrogenous fertilizer in different release periods are set with proportion of the urea-based nitrogenous fertilizer in different release periods according to fertilizer-demanding characteristics on the nitrogenous fertilizer by the corn in different growth periods to form 4-level supply speed of the fertilizer nitrogen, thus remarkably controlling loss of nitrogenous fertilizer.

The invention relates to efficient chemical fertilizers, in particular to an efficient slow-release bulk-blending (BB) fertilizer and a preparation and application method thereof. The efficient slow-release BB fertilizer is composed of urea nitrogen fertilizers, phosphatic fertilizers, potash fertilizers, secondary nutrient elements required by plants and trace nutrient elements required by the plants. Measured according to urea pure nitrogen amount of the urea nitrogen fertilizers, urea nitrogen fertilizer amount are 40-46.3% of the pure nitrogen amount, phosphatic fertilizer amount is 30-90% of the pure nitrogen amount, the potash fertilizer amount is 45-100% of the pure nitrogen amount, secondary nutrient elements comprise calcium taking up 10-45% of the pure nitrogen amount and magnesium occupying 5-35% of the pure nitrogen amount, and the trace nutrient elements comprise ferrum occupying 0.1-5% of the pure nitrogen amount, copper occupying 0.1-3% of the pure nitrogen amount, manganese occupying 0.5-3% of the pure nitrogen amount, zinc occupying 0.1-2% of the pure nitrogen amount, boron occupying 0.05-2% of the pure nitrogen amount and molybdenum occupying 0.01-2% of the pure nitrogen amount. Nitrogen fertilizer dosage and proportion of the efficient slow-release BB fertilizer are set fully according to fertilizer requiring characteristics to nitrogen of the plants at different growth periods, continuous supplying of the fertilizer nitrogen is guaranteed, and loss of a nitrogen fertilizer is controlled remarkably.

The invention relates to a high-yield cultivation method for honeysuckles in low mountains and hills. The method includes the key technical steps such as variety selection, raising of seedlings by cutting, digging of planting holes, base fertilizer application and planting, covering of mulching films, pruning, integrated control of plant diseases and insect pests and topdressing. The method is characterized in that growth and development of plants of the honeysuckles are obviously promoted, the time limit ahead of the high-yield period is shortened, the yield of the honeysuckles is improved, and the quality of the honeysuckles is guaranteed. Compared with an ordinary planting method, the high-yield cultivation method enables the yield in the first year after transplant to be promoted by 56.7%, the yield in the second year after the transplant is promoted by 87.3%, and the yield in the third year after the transplant is promoted by 116.6%. However, no obvious changes happen on the content of chlorogenic acid of the honeysuckles and contents of galuteolin of the honeysuckles, the content of the chlorogenic acid of the honeysuckles and the content of the galuteolin of the honeysuckles all meet the standard provisions of <pharmacopoeia of the people's republic of China> (2010 version), and social benefits, economic benefits and ecological benefits are remarkable.

The invention belongs to the technical field of animal husbandry, and particularly relates to an ecological breeding method of Zhoushan white geese. The White Goose Farm selects hillsides and woodlands including mountain streams, sloping fields, paddy fields, and fishponds. The mountain streams pass through the sloping fields, run into the paddy fields, and then flow to the fishponds, and goose nests are built near the fishponds; tall and thick fast-growing plants are grown around the Farm to form living fences, and different functional regions are separated by the living fences; the different functional regions comprise a grassland grazing region, a paddy field grazing region, and a fishpond region. White geese produced with the method have better quality, and meanwhile ecology and water resource are protected from damage. The functional regions of the White Goose Farm have their respective different small ecological environments with their own features, are closely associated with one another and interdependent, and provide a good ecological environment and a rich food chain for the growth of white geese. Scientific feeding of white geese, high yield and high quality, zero emission of waste water and sewage, and ecological breeding of white geese consistent with sustainable development are realized, and more remarkable economic, social and ecological comprehensive benefits are created.

The invention discloses a rice field base application multi-effect nutrient, which comprises the following components in percentage by weight: 43.17 to 58.4 percent of nitrogen fertilizer, 18.18 to 27.27 percent of phosphorus fertilizer, 10 to 16.67 percent of potassium fertilizer, 1.5 to 2 percent of zinc sulfate, 3 to 7 percent of sodium silicate, 0.04 to 0.08 percent of compound niclofolan sodium and 6.9 to 8.3 percent of filler. The nitrogen, phosphorus and potassium fertilizers in the components meet the conditions that N is 20 to 25 percent, P2O5 is 8 to 12 percent and K2O is 6 to 10 percent. The rice field base application multi-effect nutrient can meet reasonable nutrition required for the growth of rice, and also can enhance the disease, insect and adversity resistance of the rice, relieve the harm of toxic substances, promote steady and robust growth of the rice and meet the requirements of high yield and good quality.

The invention discloses a method for planting potatoes. During the germination period, water should be sprinkled to prevent dryness. The cutting tools used for cutting should be strictly sterilized with potassium permanganate or alcohol to prevent microorganisms and pathogenic bacteria from causing damage to potato tubers. Infection, the potato pieces after drying in the shade are moved to a warm and sunny place to dry the seeds, so that the young shoots are green and strong, and the foliar spraying of 1% potassium dihydrogen phosphate solution can promote the early emergence of seedlings, and the flower buds are removed during the flowering period, reducing Nutrient consumption can promote the development of potato pieces. When the potato plant height is 18 cm, spray the water with paclobutrazol, which can prevent the plants from growing excessively and lodging, and increase the rate of large and medium potatoes. After the middle flowering period, use carbendazim to prevent and control late blight , a potato planting method proposed by the present invention, which greatly saves labor, reduces the cost of potato planting, improves the survival rate of potatoes, enhances the benefits of planting potatoes, enhances the disease resistance and pest resistance of potatoes, and achieves The purpose of high yield and high quality has great promotion value.

The present invention relates to the topping and stem planting propagation of ramie and the seedling period management of low position ramified seedling in field. During stem planting propagation of ramie, the stem is topped while planting or while hardening-off after planting; or, the tender stem is cut into section and stem planted to grow seedling, and after the branches are formed, the growth point is eliminated and the low position ramified seedling is cultivated via secondary branching cultivation. The low position ramified seedling is planted deeply in field and promoted to grow independent root system via intertillage and earthing, so as to form new plant. The said propagation process can promote the growth of root system and rhizome and has obvious features of high yield, high quality and high efficiency.

The invention discloses a rice heavy metal absorption blocking agent and a use method thereof. The blocking agent includes one or more effective components of alpha-ketoglutarate, glycerol and oxaloacetic acid. The aim of preventing heavy metal from being absorbed and transferred to rice can be achieved through leaf surface spraying in the rice tillering period, heading period and / or postulation period. The contents of lead, cadmium and other heavy metal polluting rice in rice fields can be remarkably reduced, and rice produced in rice fields slightly or intermediately polluted by heavy metal meets the food safety standard. The effective spraying concentration of the blocking agent is low, the blocking agent can be sprayed after being mixed with pesticides for preventing and treating rice diseases and pests, and cost is low.

The invention discloses a soilless half-hydroponic planting method of organic Chinese chives, and belongs to the field of facility agriculture cultivation. Disinfection treatment is conducted on non-transgenic Chinese chive seeds which are not subjected to chemical treatment, and in the whole process, organic fertilizers such as fermented and decomposed straw and chicken mature are utilized for matrix cultivation and leaching agent irrigation; seedling is conducted in the earlier stage of 3 months to 4 months; transplanting is conducted in the middle stage of 6 months to 18 months for half-hydroponic cultivation; in the later stage, hydroponic cultivation is conducted by combining an order, and cyclic fertilizer supply and timely liquid fertilizer recycling are adopted; a cultivation mode that the Chinese chives are managed in different periods and stages is combined. The invention further provides an organic matrix for planting vegetables and organic liquid fertilizer and a making method thereof. Earlier fermentation, post decomposition and continuous retting are conducted on straw, chicken manure and the like which serve as the raw materials by means of the characteristic of symbiotic bacteria; continuous extracting and leaching agent supplementing are conducted, and the organic liquid fertilizer is obtained after collecting is conducted; nutrients are comprehensive, the fertilizer efficiency is balanced, and plant absorption is promoted; the soilless half-hydroponic planting method of the organic Chinese chives is an efficient, practical and low-cost planting method.

The invention discloses a vegetable heavy metal blocking agent and a use method thereof. The effective component of the blocking agent is one of or several of alpha-ketoglutaric acid, glycerol and oxaloacetic acid; the purposes of blocking heavy metal absorption and transferring to edible parts can be realized through foliage spraying from vegetable cultivation to harvesting. According to the vegetable heavy metal blocking agent disclosed by the invention, the contents of lead, cadmium and other heavy metals at the edible parts can be obviously reduced, so that vegetables produced in vegetable fields mildly and moderately polluted by the heavy metals conform to food safety standards. The blocking agent disclosed by the invention is low in effective spraying concentration and can be sprayed after being mixed with pesticides for preventing and treating vegetable diseases and insect pests, thereby being low in cost.

The invention discloses an aspen tree planting method. The method is characterized by comprising the following steps of 1, seedling breeding field selection; 2, soil preparation; 3, branch collection and cutting slip cutting; 3, cutting slip cutting; 5, water soaking; 6, cuttage; 7, planting; 8 forest management. According to the aspen tree planting method, labor force is greatly saved, the aspen tree planting cost is lowered, the aspen tree survival rate is improved, the aspen tree planting benefits are enhanced, the aspen tree disease resistance and insect pest resistance are enhanced, and the purposes of high yield and high quality are achieved. The method is suitable for professional or non-professional planting persons for reference and usage, the method is convenient to implement, and cultivating and planting are quite convenient. Compared with a common aspen seedling breeding and planting mode, the survival rate is improved by 20%, the tree form is good, the crown breadth is obviously enlarged, the disease resistance is strong, the wind resistance is strong, economic benefits are improved by 10%, and the input management cost is lowered by 30%.

The invention belongs to the field of crop production and discloses a seasonal drought relieving and high yield ensuring compound agent for double cropping rice. The compound agent includes an early-season rice special type and a later-season rice special type. The early-season rice special type includes, by weight, 50% of hydroxyethylcellulose, 20% of amino acid raw powder, 15% of monopotassium phosphate, 10% of potassium fulvate, 2.5% of zinc sulfate, 2% of prohexadione calcium, 0.2% of compound sodium nitrophenolate, and 0.05% of abscisic acid; and the later-season rice special type includes, by weight, 30% of hydroxyethylcellulose, 30% of amino acid raw powder, 20% of potassium fulvate, 10% of monopotassium phosphate, 5% of Kang polyphenol, 4.8% of zinc sulfate, and 0.2% of sodium alpha-naphthylacetate. In the formula, comprehensive drought resistant capability of rice is improved through several ways. The compound agent is quick in effects, has long lasting time and has good effects.

The invention provides a planting method for improving the survival rate of nursery stocks. The planting method is characterized by comprising the following steps that 1, 3-5 parts of calcium superphosphate and 45-55 parts of yellow mud are mixed by weight and are uniformly stirred, and loess and water account for 50% respectively according to the composition of the yellow mud; 2, the parts abovethe root portions of stocks with bare roots are dipped in the mixed solution for 1-5 minutes; 3, plants grow out as soon as possible and huge root systems and healthy and strong plants are formed through deep soil ploughing, intertillage and soil loosening, fertilizer increase, reasonable irrigation and drainage, ground temperature increase and hormone treatment before planting, and accordingly the high-yield and high-quality purposes are achieved. The seedling reviving time of transplanted stocks can be shortened, the survival rate of the stocks can be improved, nutrients and moisture surrounding the root portions of the stocks can be kept, and a feasible scheme can be provided for stock transplantation in the forestry industry and gardens.

The invention relates to a cultivation formula of pleurotus nebrodensis, belongs to the technical field of cultivation of edible fungi and aims at providing a cultivation formula of pleurotus nebrodensis, which has high fruiting rate. The adopted technical scheme is as follows: the cultivation formula of the pleurotus nebrodensis comprises the following components in percentage by weight: 50%-60% of cottonseed hull, 8%-12% of corncob, 12%-17% of wheat bran, 7%-12% of sawdust, 4%-9% of corn flour, 1-3% of CaCO3 and 1%-3% of lime. The cultivation formula provided by the invention is applied to cultivation of the pleurotus nebrodensis. By using the formula of the invention, the cultivation of the pleurotus nebrodensis with the advantages of large mushroom bodies, high yield and excellent quality can be realized through the existing cultivation technology.

The invention discloses a nano silicon-magnesium-potassium water flush fertilizer. The prepared nano silicon-magnesium-potassium water flush fertilizer is prepared from the following materials in percentage by mass: 65%-70% of nano silicon-magnesium powder, 10%-15% of potassium sulfate, 5%-10% of potassium humate, 5%-10% of nano medical stone powder, 1%-2% of carboxymethyl modified starch, wherein the sum of the materials in percentage by weight is 100%. The preparation method comprises the following steps of: preparing magnesium ore slag and medical stone into nanoscale particle fine powder; adding the potassium sulfate, the potassium humate and the carboxymethyl modified starch according to the proportion of the formula, sufficiently and uniformly stirring with water to form paste; and checking, filling, metering, sealing and labeling to obtain the nano silicon-magnesium-potassium water flush fertilizer. The nano silicon-magnesium-potassium water flush fertilizer is low in production cost, good in stability and suitable for industrial production. A field system test indicates that the nano silicon-magnesium-potassium water flush fertilizer has complete functions, gathering nutrients, and a long fertilizer efficiency period, and enables crops including wheat, corns, rice, melons, fruits, vegetables, apples, oranges, grapes, cottons and the like to increase yield.

The invention discloses a blocking agent for reducing the content of heavy metal of edible parts of crops and an application method thereof. The blocking agent comprises glycerol or one or two of glycerol, oxaloacetic acid and alpha-oxoglutarate, and can realize the purposes of blocking absorption of heavy metal and transferring to edible parts through foliage spraying after vegetable farming andbefore harvesting. The blocking agent can obviously reduce the contents of heavy metal, such as plumbum and cadmium, at the edible parts of vegetables, so as to ensure that vegetables produced in mildor medium-heavy metal contaminated vegetable fields meet food safety standards. The blocking agent is low in effective spraying concentration, can be mixed with pesticide for controlling vegetable diseases and insect pests and then be sprayed, and is low in cost.

The invention discloses a potato plantation method comprising the following steps: watering in a germination accelerating period so as to prevent soil drying; using potassium permanganate or alcohol to strictly disinfect a cutter used for cutting potato, thus preventing microbe and pathogen from invading potato stem tubers; moving shadily dried potato blocks to a warm sunny place for airing; allowing young shoot to grow green and strong, spraying 0.3% potassium dihydrogen phosphate solution on leaves, thus promoting seedling for early budding; removing flower buds in the florescence period, reducing nutrient consumption and prompting potato block growth; blending paclobutrazol with water, spraying the mixture on the plants when potato plant grows to 18cm in height, thus preventing plant spindling and lodging, and improving big and middle potato rate; applying carbendazim after the flowering stage so as to prevent late blight. The potato plantation method can greatly save labor, can reduce potato planting cost, can improve potato survival rate, thus enhancing potato plantation benefits, promoting potato disease resistance and anti-insect capability, realizing high yield, and providing large popularization values.

The invention discloses a potato planting method. Water needs to be sprinkled in the germination accelerating period to prevent drought; a cutter for cutting tubers needs to be strictly disinfected with potassium permanganate or ethyl alcohol to prevent the condition that potato tubers are infected by microorganisms and pathogenic bacteria; the potato tubers dried in the shade are moved to a warm place facing the sun for seed drying, so that buds are green and robust; a potassium dihydrogen phosphate solution is sprayed to the leaf surfaces, and therefore early tillering of seedling can be promoted; flower buds are removed in the flower season, therefore, nutrient consumption is reduced, and development of the potato tubers is promoted; when potato plants are 18 cm high, a mixture of paclobutrazol and water is sprayed, therefore, overgrowing and lodging of the plants can be prevented, and the big and medium potato rate is increased; after the middle flower season, late blight can be prevented and controlled through carbendazim. According to the potato planting method, labor is greatly saved, the potato planting cost is reduced, the potato survival rate is increased, potato planting benefits are increased, the disease resistance and the pest damage resistance of the potatoes are enhanced, the high yield and high quality purposes are achieved, and a great popularization value is achieved.

The present invention discloses a watermelon seed selection and shell breaking germination method. The germination method is achieved by the following steps: 1, seed selection and drying: depending on the properties of the variety, selecting the seeds according to the shape, color, size, and the fullness; selecting tetraploid and diploid watermelon seeds, eliminating deformities, hybrid seeds, and inferior seeds; and drying the seeds in the sun for 1-3 days a few days before soaking to help improve the germination potential; 2, seed soaking: blending the triploid seeds into 55 DEG C warm water, then naturally cooling the water, and soaking the seeds for 6-8 h; 3, shell breaking; and 4, germination: germinating the seeds after soaking and shell breaking under the condition of a constant temperature of 33-35 DEG C for 24 h, maintaining a certain humidity, selecting buds of 0.5cm for sowing, and continuing germinating the remaining seeds for 36 h to obtain germinated normal seeds, wherein the buds is preferably not too long.

The invention discloses an efficient cutting and grafting breeding method for passifolra edulis seedlings. The method is characterized by comprising the steps of selecting a disease-resistant variety''golden passifolra edulis'' as a rootstock, and purple red fruits ''Tainong 2 and Tainong 9'' as scions; cutting out semi-lignified new shoots sprouting in spring and cutting the new shoots into cuttings; dipping bases of the cuttings into rooting powder, then straightly inserting the cuttings into a substrate, and thoroughly watering the cuttings with clear water after inserting; adopting a cleft grafting method during scion grafting; prizing the rootstock, inserting the scions and tightly attaching the scions to the rootstock; and then moving a plastic expansion hose at the lower end of therootstock upwards to cover the rootstock and the scions, and sealing one half of the whole rootstock-scion part, wherein the plastic expansion hose expands along with growing and thickening of the rootstock and the scions, and can automatically expand and crack after the rootstock and the scions completely heal and survive after being grafted, thereby indicating that grafted seedlings are successfully bred. According to the efficient cutting and grafting breeding method, grafting breeding of the seedlings is carried out by adopting a yellow fruit variety resistant to root rot as the rootstockand a high-quality purple red fruit variety as the scions, so that the targets that the seedlings are disease-resistant, high in quality and high in yield are achieved, and high yield and high quality are achieved.

The invention discloses a brewing method of natural organic blueberry wine. The brewing method comprises the following operation steps: carefully selecting blueberry fruits with full particles, rich juice and bright color, and grinding the blueberry fruits into blueberry fruit slurry by using a crusher; putting the blueberry slurry, rock candy and sweet yeast into a wine jar according to the mass ratio of 100:20:0.1, stirring to be uniform, then sealing for fermentation, and opening a sealing cover and stirring for one time each day, wherein the ambient temperature of fermentation is 20-27 DEG C, and fermentation is completed after 15-18 days. The adopted fermentation method has the beneficial effects that the wine yield can reach 78-81%, i.e., about 80kg blueberry fruit wine can be obtained after fermenting filter residues in 100kg materials; and the blueberry wine has pure wine flavor, pleasant fragrance and slight blueberry fruit flavor.

The invention discloses a wild bletilla striata cultivation method. The wild bletilla striata cultivation method comprises the following steps of land selection and preparation, seedling breeding, explant selection, sterilization, seedling raising, seedling hardening, transplantation, field management including intertillage and weeding, fertilizer and water management, pest prevention and control,management at a bletilla striata growth stage in the next year, and harvesting and processing. The wild bletilla striata cultivation method is scientific and reasonable, so that bletilla striata cultivated by adopting the method has the advantages of being high in yield, good in quality, short in planting period and high in breeding rate.

The invention provides a cultivation method for improving the yield and quality of eucommia rubber. The method comprises the following specific steps: ditching with a space of 1m, applying farmyard manure compound fertilizer into the ditches, and backfilling with soil to facilitate mechanical harvesting; performing wide-narrow row planting, wherein the wide row space is 1m, the narrow row space is 0.5m, the plant space is 0.2-0.4m, and one-year-old seedling or grafted nursery stock is selected in spring or winter; stumping while leaving 5cm overground; watering immediately; within 30 days since planting, performing bud picking to remove redundant lateral buds and keep one main bud, and weeding the field in the early stage of growth; treating with a brassinolide-containing growth regulator, and spraying leaf fertilizer twice; harvesting and separating eucommia leaves, bark and steam by a special harvester; managing with the same mode as the first year; and since the third year, performing topdressing with compound fertilizer and urea by year in the barren-soil planting site, and dressing the compound fertilizer for the first year. In the invention, eucommia is cultivated in non-agricultural land, and the cultivated eucommia rubber is of high yield and high quality.

The invention relates to spring maize cultivation, in particular to a dedicated fertilizer for producing green corn and a preparation and an application method thereof.The fertilizer is composed of urine-based nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, medium elements and trace elements; in the preparation method, the solid raw materials with a grain size of 1.5-4.5mm are selected; then the medium elements are added to humic acid or humic acid salt accounting for 60-100% of the mass percent of the medium elements to be mixed; afterwards, trace elements are added and mixed with the mixture, cementing agent is used for pelleting and producing solid raw materials with a grain size of 1.5-4.5mm for standby use; finally, the medium elements and trace elements mixed for pelleting are uniformly mixed with the urine-based nitrogenous fertilizer, phosphate fertilizer and potash fertilizer.The dedicated corn fertilizer is applied to the corn spring sowing as base fertilizer at one time and no after manuring is not needed.The use level of the urea-based nitrogenous fertilizer in the fertilizer of the invention proportion of the urea-based nitrogenous fertilizer in different release periods are set with proportion of the urea-based nitrogenous fertilizer in different release periods according to fertilizer-demanding characteristics on the nitrogenous fertilizer by the corn in different growth periods to form 4-level supply speed of the fertilizer nitrogen, thus remarkably controlling loss of nitrogenous fertilizer.

The invention discloses an irrigation method of loquat trees and belongs to the field of fruit tree irrigation. The loquat trees in south subtropical south China are subjected to drip irrigation fromlate September to January of the following year with the drip irrigation amount of 35-60kg of water each loquat tree once every 6-10 days for a drip cycle. The irrigation method is easy to implement and accurate in index, time for drip irrigation can be judged by dividing the target irrigation amount into the number of drippers and the flow rate of the drippers, and convenience is brought to farmers to well implement the scheme; compared with the prior art, the irrigation method has the advantages of less amount of water involved, high operability and capabilities of saving water and labor andresisting soil drought hazard in loquat flowering and fruit bearing periods.

The invention discloses a pool-based eel cultivation method. The cultivation method comprises the following steps: (1) requiring a pool and cleaning the pool, namely, digging a fish pond ditch being 3m in width and 0.6m in depth, then building a long pond being 3cm in width and 0.6m in depth with bricks, paving a draining pipe being 70mm in diameter on the bottom of the pond, then building a small pond with bricks at every 4 to 5m in the middle, arranging an escaping-preventive net at the opening of the draining pipe, arranging a water feeding pond being 50mm in diameter on the pond, respectively distributing the draining pipe and a water feeding pipe at each side, then covering the walls of the built pond with a layer of plastic film which is as thick as 12 silks; (2) charging fish fries into the pond, namely, charging eel fries from April to August in general, wherein each eel fry is 50 to 80g, and 2 to 2.5kg eel fries are cultivated per square meter; before charging the fish fries into the pond, disinfecting with 5% potassium permanganate solution, screening out sick and injured eel fries, and then individually charging and cultivating by size; (3) feeding the eel fries, namely, crushing earthworm, fly maggot and fish, and then mixing with water to attract and feed the eel fries.

The invention discloses a feeding bait formula of fishery cultivation. According to the formula, a bait is mainly prepared from the following raw materials in parts by weight: 40 parts of rice bran, 38 parts of drum skin, 10 parts of soybean cakes, 10 parts of fish meal and 2 parts of yeast powder; a mineral substance or microelement premix which accounts for 1.5% of the mass of the bait is added into the bait; and a vitamin mixture premix which accounts for 0.1% of the mass of the bait is added into the bait. According to the feeding bait formula of the fishery cultivation disclosed by the invention, the labor force is extremely saved, the death rate is reduced and the yield is improved; and the high-yield and high-quality aims are realized and the feeding bait has the great promotional value.

The invention discloses two polyploid centella asiatica varieties and a cultivation method thereof. The cultivation method comprises the following steps of 1, selecting terminal buds of a diploid centella asiatica adult plant, and carrying out breeding of a tissue cultured seedling or callus tissue, 2, carrying out chromosome doubling induction culture and differentiation culture of tissue subcultured seedling or callus tissue by oryzalin, 3, cutting down novel buds obtained by the differentiation culture and carrying out cluster bud culture, 4, carrying out chromosome doubling identification of the cultured complete plants having roots, stems and leaves, screening the tetraploid plant, and planting the tetraploid plant to obtain the tetraploid centella asiatica variety, 5, carrying out artificial emasculation and pollination hybridization of the tetraploid plant and the diploid plant to obtain hybrid seeds (female parent 4N*male parent 2N or male parent 4N* female parent 2N, wherein F1 is 3x), and 6, breeding the hybrid seeds into complete plants, planting the plants, carrying out chromosome number detection and screening the triploid centella asiatica variety.

The invention discloses a lemon production and cultivation method capable of effectively reducing occurrence lemon yellow vein disease, and relates to the technical field of lemon planting. The lemon production and cultivation method capable of effectively reducing the occurrence of the lemon yellow vein disease comprises the following steps of S1, carrying out planting seedling selection and land selection and preparation; S2, carrying out soil fertilization and digging a planting pit; S3, carrying out water management; S4, carrying out fertilization management; S5, carrying out prevention and control of the root of a lemon seedling; S6, carrying out prevention and control of the leaf surface of the lemon seedling; S7, carrying out leaf surface growth period management; S8, carrying out prevention and control in a fruiting period; S9, shaping and pruning; and S10, carrying out fruit management. According to the lemon production and cultivation method capable of effectively reducing the occurrence of the lemon yellow vein disease, whole-course regular cultivation is carried out from the aspects of seedling selection, land selection and preparation, planting pit preparation, planting, after-planting fertilizer and water management, shaping and pruning, pest prevention and control and the like, fertilization is reasonable, pest prevention and control is proper, the occurrence rate of pest and disease damage is effectively reduced, and the cost of planting lemon fruit trees is greatly reduced; the occurrence of soil insect pests and the breeding of soil germs can be effectively inhibited, and the occurrence of the lemon yellow vein disease is effectively reduced.