298results about How to "Increase selenium content" patented technology

The invention relates to a preparation method and an application of a selenium-enriched foliar fertilizer. The preparation method comprises the steps as follows: the selenium-enriched foliar fertilizer is prepared by sodium selenate, sodium selenite, fulvic acid, urea, compound sodium nitrophenolate, SDS (sodium dodecyl sulfate) and the balance water; and the sodium selenate and the sodium selenite are taken as donors of selenium, the fulvic acid is taken as a chelating agent, the compound sodium nitrophenolate is taken as a plant growth regulator, and the fertilizer is compounded by adding the plant growth regulator compound sodium nitrophenolate and the urea and the SDS. The selenium-enriched foliar fertilizer is mainly used for crops such as wheat, corn, tomatoes, muskmelons, sugar beet, red dates, walnuts, apples, bergamot pears and the like, and can provide the selenium element for the crops and improve the selenium contents in the crops. The selenium contents of the crops are improved by 128.6-275.0% while compared with those of crops without using the selenium-enriched foliar fertilizer.

The invention discloses a groove-type planting method of nano-selenium Chinese yam. Deep soil is crushed and made to float to be mixed with cultivated soil through a deep plowing technology, by adding a certain amount of biological-organic fertilizer containing nano-selenium, the soil is fertile, loose, rich in organics, and is more suitable for growth of the Chinese yam, the selenium content of the Chinese yam is increased, and the nutrition and medicinal value of the Chinese yam are increased. A plurality of U-shaped planting grooves are arranged for planting the Chinese yam, the Chinese yam can transversely grow along the U-shaped planting grooves and is easy to plant and harvest, labor intensity is relieved, and production cost is reduced. Meanwhile, the planting grooves are made of materials with mesh holes, palm bark is laid inside the planting grooves, the breathability and water permeability of the planting grooves can be effectively improved, and waterlogging and droughts are both effectively prevented. A double-layer planting method is adopted, the utilization area of land is effectively increased, and production and income are both increased largely.

The invention relates to a planting method of selenium-rich passiflora edulis. The variety of the planted passiflora edulis is Tainung No1. The planting method comprises steps as follows: land selection, land preparation, field planting, shelving, training and pruning, fertilizer and water management, field management and pest control. According to the planting method of the selenium-rich passiflora edulis, a selenium-rich fertilizer fermentation broth obtained through fermentation of inorganic selenium fertilizer is sprayed to leaf surfaces and fruits of the passiflora edulis, the average single fruit weight of the produced passiflora edulis is 63 g, the maximum single fruit weight is 125 g, the fruit juice is reddish yellow and has strong fragrance, the acidity is 2.14%, the highest selenium content can reach 12 mu g/kg, the sweetness reaches 23% Brix, the fruit juice rate is up to 34%, the color and luster are bright, the yield is high, pollution is prevented, and five crops are harvested every year.

The invention discloses a farmland planting method of high-selenium crops. The method is characterized by comprising the following steps: (1) uniformly mixing a nano selenium plant nutrient with a base fertilizer, applying the mixture to the surface of farmland soil and plowing so that the nano selenium plant nutrient is uniformly distributed on a plowing layer; (2) uniformly seeding on the farmland soil according to the crop types, and wetting and irrigating the soil surface layer 5-10 days after the crop seedling emerges; and (3) performing conventional field management on the crop according to different crop types until the crops are mature. According to the invention, the high-selenium crops can be cultivated, the selenium content is stable, and the proportion of organic selenium is high.

The invention discloses a hot pepper rich in organic selenium and a production method thereof. The total selenium content in the hot pepper rich in organic selenium is 10-300 micrograms per kilogram and the content of the organic selenium is equal to or more than 80% of the total selenium content. The method comprises the following steps: using a selenium-enriched seedling culture matrix of hot pepper to culture the seedlings of the hot pepper rich in organic selenium; transplanting the seedlings together with soil into a land; and finally harvesting the hot pepper rich in organic selenium, wherein a selenium-enriched seedling culture matrix of hot pepper contains nanometer selenium plant nutrient agent, garden soil, organic fertilizer, pond sludge and plant ash, and the mass ratio of the nanometer selenium plant nutrient agent to the garden soil to the organic fertilizer to the pond sludge to the plant ash is (0.001-0.1): (2-8):(1-4): (1-4): (0.5-1). The hot pepper is rich in selenium element and the whole content is uniform. By using the method, the proportion of organic selenium is increased, the problem of the prior art of the stability of selenium content in the hot peppers grown in different batches is solved, the uniform selenium content in the hot pepper is ensured, and the standard mass production can be realized.

The invention relates to a fertilizer formula and further relates to an application method of the fertilizer. A selenium-rich organic/inorganic fertilizer for producing selenium-rick rice is prepared by mixing selenites, nitrogenous fertilizers, phosphate fertilizers, potash fertilizers, rotten organic fertilizers and silicon fertilizers according to a certain ratio and pelletizing the mixture. The selenium-rich organic/inorganic fertilizer for producing the selenium-rick rice comprises the following components in parts by weight: 0.004-0.010 parts of the selenites, 15-33 parts of the nitrogenous fertilizers, 12-24 parts of the phosphate fertilizers, 10-17 parts of the potash fertilizers, 30-50 parts of the rotten organic fertilizers and 5-8 parts of the silicon fertilizers. The fertilizer not only includes selenium element but also includes other nutrition enhancing matters requested by crop growth. As the fertilizer can be used for supplying the selenium element and the other nutrition enhancing matters requested in growth for crops simultaneously, the application of the fertilizer is good for the crop growth, so that the absorption rate and the conversion rate of selenium are improved, and the selenium-rick rice reaching a selenium-rick rice standard can be produced by applying less selenium.

The invention discloses a planting method of selenium-rich mangoes. The planting method is characterized by comprising steps as follows: land selection, seedling culture, field planting, pruning and trimming, nutrient and water management, orchard management and pest control. The planting method adopts a fertilizer technology such as selenium-rich bio-organic fertilizer, selenium-rich organic-liquid active fertilizer, organic fertilizer and the like, so that soil environment is effectively improved, the content of organic matters and selenium in soil is greatly increased, the selenium content of the planted mangoes is high, the mango yield is high, the detection indicates that the selenium content of the mango is 0.40-0.45 mg/kg, furthermore, according to the insecticide technology adopting botanical insecticides and botanical fungicides, the better insecticidal efficacy is realized while nutrition is guaranteed, and the economic benefit is very obvious.

The invention discloses a selenium-rich nutrient solution for a pear. The nutrient solution comprises, by weight, 20 to 30 parts of magnesium sulfate, 5 to 15 parts of zinc sulfate, 10 to 15 parts of copper sulfate, 10 to 25 parts of iron sulfate, 10 to 25 parts of urea, 8 to 15 parts of potassium sulfate, 10 to 15 parts of potassium dihydrogen phosphate and 25 to 40 parts of sodium selenite. Through application of the nutrient solution provided by the invention, selenium content of the pear can be substantially increased, production of the pear is promoted, net weight of fruit is increased, resistance of the pear to insect attack is enhanced, and attack by diseases and insect pests is reduced.

The invention discloses a farming method of the selenium-enriched Yellow River carp and relates to the field of rearing technology. The Yellow River carp is used as parent fish. Except the period of normal feeding, the Yellow River carp is drugged continuously in 10-100 days before slaughter. The drug applied is selenium-containing preparation and is applied for once or many times each day, 0.4mg/kg.b.w-30mg/kg.b.w each day by selenium. Drug application is performed by mixing the selenium-containing preparation into feed to allow the fish to eat naturally. The farming method has the advantages that a large dose of the selenium preparation is applied to the Yellow River carp before slaughter, and accordingly the fishes of the Yellow River carp high in selenium content can be obtained; products of the Yellow River carp can meet the daily requirements of people for selenium; and the farming method of the Yellow River carp is further applicable to crucian carp, silver carp, catfish, grass carp and other freshwater fishes.

The invention discloses tomatoes rich in organic selenium and a production method thereof. The tomatoes rich in organic selenium have an organic selenium content of 10-240 microgram/kg, with organic selenium accounting for over or equal to 80 percent of the total selenium content. The method comprises the following steps: applying selenium-rich nutrient into nursery medium or nursery ridges during tomato seedling raising phase, transplanting with soil, i.e., brining selenium-containing medium at the roots of tomato seedlings into a farmland, and finally harvesting tomatoes rich in organic selenium. The selenium-rich nutrient comprises nano-selenium plant nutrient, microbial fertilizer and boiler ash residue which have a weight ratio of (1-4): (1-4): (1-4), with a selenium content of 100-1000 mg/kg. The invention have the advantages that the tomatoes are rich in selenium, the overall selenium content is uniform, and the ratio of organic selenium in the method is improved, thereby solving the problem of selenium content stability in different batches of tomatoes in the prior art, ensuring uniform selenium content in the tomatoes, and realizing standardized scale production.

The invention provides an aquaculture method of a high-quality and high-yield clear water grass carp. The aquaculture method comprises the following concrete steps: (1) building a pond; (2) carrying out pre-treatment on the pond; (3) stocking fries; (4) feeding feed; (5) regulating and controlling water quality; (6) preventing and treating diseases; and (7) fishing in good time. By adopting the aquaculture method provided by the invention, fish flesh quality of the grass carp is improved after the grass carp is cultured for two years, content of fibers and proteins in the fish flesh is greatly increased, the fish flesh is tender and crisp, and the fish flesh is boilproof and does not break and taste is delicious and refreshing, so that high-quality grass carp with crisp flesh is obtained; besides, by virtue of reasonable distribution of feed, on one hand, the fish flesh quality of the grass carp is hard, crisp and tasty and the fish flesh is delicious and refreshing in taste, and on the other hand, the feed adopts Se-enriched feed, organic selenium content of a feedstuff fish is increased, digestive absorption of the grass carp to selenium is promoted. Compared with common grass carp, selenium content of the grass carp cultured by adopting the method is 10 times that of the common grass carp, health function is obviously enhanced, and immunity of a human body can be enhanced.

The invention provides a method for planting selenium-enriched rice at a high yield. The method comprises the following steps: 1), preprocessing seeds; 2) plowing the soil and fertilizing; 3) culturing seedlings; 4) transplanting the seedlings; 5) additionally fertilizing; 6) harvesting. According to the method provided by the invention, a seed processing step is additionally adopted to sterilize and disinfect the seeds, and meanwhile, the seeds are soaked with sodium selenite to increase the selenium content in rice seeds. A long-acting selenium-enriched coated controlled release compound fertilizer applied for rice planting comprises a core fertilizer and a coated layer coating the surface of the core fertilizer. The core fertilizer adopts sulphur coated urea to form a three-layer structure, such that the controlled release efficiency is remarkable, and the fertilizer efficiency is long. Only a little amount of fertilizer needs to be applied additionally after planting to save time and labor. Both the core fertilizer and the coated layer are prepared from organic degradable materials, such that the fertilizer efficiency can be kept in the degradation process. The core fertilizer is rich in microelements, thus promotes the nutrimental value of rice, and the soil quality can also be improved on the premise of degradability. The ingredients of the fertilizer are friendly to soil, low in production cost, beneficial for market promotion and good in economic benefits.

The invention discloses a plantation method of selenium-rich edible canna. The method comprises the following steps: establishing a water irrigation and drainage system; applying mineral powder and a selenium-rich base fertilizer; carrying out breeding edible canna cutting and breeding; spreading fine sands and wood chips before sowing; digging plantation pits, and planting the breeding edible canna; and sprinkling a selenium-rich nutrient solution when the height of edible canna seedlings reaches 10-15 cm, and applying a selenium-rich fertilizer after the edible canna seedlings are germinated for 30-35 d. Scientific cultivation management is carried out, the selenium mineral powder and the selenium-rich base fertilizer are applied to the plantation field in the soil preparation process, and the selenium-rich nutrient solution and the selenium-rich fertilizer are applied in the plantation process, so harvested edible canna stem tubers have high output, are rich in the selenium element, and have extremely high nutrition values and economic values.

The invention relates to production of selenium-rich organic fertilizer, and is applied to the field of agriculture and forestry production. Yeast is introduced in a culture medium consisting of cassava starch, corn starch, urea, monopotassium phosphate and ammonium sulfate; needed nutrient substances of inorganic selenium and the yeast are added through the batch feeding method; the inorganic selenium is converted into organic selenium. Then sugar alcohol and nutrient elements needed by a plurality of plants are added to prepare sugar alcohol high-efficiency organic selenium-rich fertilizer. The product has excellent water solubility and spreadability, can quickly promote the plant growth, and can improve the plant yield and quality, in particular improve the selenium content of agricultural products.

The present invention features that the selenium-rich rice is produced with selenium-rich rice grain, which is produced via spraying once selenium-rich agent during the earing up and flowering period of rice. The selenium-rich agent consists of selenium-containing inorganic compound and phosphate in the weight ratio of 10-20 to 0.5-3. The selenium-rich rice has high selenium content and the said planting process has no obvious influence on the yield of rice while raising the content of selenium.

The invention belongs to the technical fields of selenium-containing fruit stem smears for fruits and vegetables, preparation processes and use methods thereof and discloses a selenium-containing fruit stem smear for f fruits and vegetables as well as a preparation process and a use method thereof. The selenium-containing smear is characterized by comprising the following materials by weight: 100kg of refined wool oil, 6.5-13 kg of refined food-grade compound amino acid powder, 0.06-0.6 kg of pure selenium contained in selenite or selenic acid and 10-13.5 kg of water. The materials are chelated and homogeneized, so that the selenium-containing fruit stem smear for fruits and vegetables can be attached to the fruit stems for a long term and can not be taken away by wind and rain; since theselenium element is directly absorbed by fruits without being consumed by other parts of plants, absorption rate is improved so that the fruits and vegetables which have stems contain high selenium contents; and the preparation method and use method are convenient for operation and are beneficial to popularization.

A Se-enriched liquid fertilizer is prepared from barnyard manure through proportionally mixing it with water, natural stacking for at least 6 months, filtering, proportionally mixing the filtrate with sodium selenite, and natural fermenting for 15-35days. It can be used to culture Se-enriched agricultural crops and obtain the Se-enriched agricultural products by diluting it with water and spraying it on the plants of agricultural crops.

The invention relates to organic selenium-rich pear special nutrient, preparing method and applications thereof. The organic selenium-rich pear special nutrient is prepared from the following components in percentage by weight: 2-8% of nanometer selenium plant nutrient, 1-3% of organic fertilizer, and 0.1-0.4% of microorganism fertilizer, wherein the selenium concentration of the nanometer selenium plant nutrient is 2000-13000mg/kg. The nutrient is prepared by the step of uniformly mixing and crushing the components. When the organic selenium-rich pear special nutrient is used, a ditch with the circle radius of 50-70 cm and the depth of 10-20 cm is dug by taking the root of the pear tree as a circle, and the organic selenium-rich pear special nutrient is applied, wherein the applied selenium total amount is 20-200g/mou.

The invention belongs to the technical field of agricultural fertilizer and particularly relates to a preparation method of selenium-rich organic fertilizer by waste recycling. The preparation methodcomprises the following steps: mixing selenium-rich crop leaves and stems with animal waste and corn straw, adding compound microorganisms, performing fermentation under a closed environment, pulverizing fermented products, and then adding humate and linoleic acid to obtain selenium-rich organic fertilizer powder; and uniformly mixing the selenium-rich organic fertilizer powder with nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, a urease inhibitor, an ammonia stabilizing agent and a granulating agent, and performing granulation to obtain selenium-rich biological controlled-release organic fertilizer. The preparation method of the selenium-rich organic fertilizer by waste recycling, provided by the invention, is used for preparing the selenium-rich organic fertilizer by utilizing agricultural waste, the selenium-rich organic fertilizer can be absorbed by crops and converted into biological organic selenium to be enriched in the crops, the selenium content of seeds andfruits of the crops can be increased by 5-20 times, and common people can eat the selenium-rich agricultural products to supplement selenium required for human bodies, thereby achieving the purposes of preventing diseases, enhancing physique, keeping healthy and prolonging life. The organic fertilizer is scientific and reasonable in formula, simple and convenient in production and use methods, lowin cost and safe and effective.

The invention belongs to the technical field of paddy rice cultivation. A cultivation method of selenium-enriched rice comprises the following steps: (1) selecting a variety; (2) treating seeds; (3) sowing the seeds and cultivating seedlings; (4) transplanting the rice seedlings; (5) reasonably applying fertilizer; (6) irrigating. By adopting the cultivation method of the selenium-enriched rice, provided by the invention, the problem that the content of selenium in rice produced by a traditional paddy rice planting method is not enough is solved; inorganic selenium is biologically transformedinto organic selenium, which is easily absorbed by human bodies, through paddy rice and the selenium content of the rice is improved.

A Se-enriched yield-increasing chemical is prepared proportionally from chicken droppings, silkworm dung, cotton seed cake or rapeseed cake, and cultured Em bacteria liquid through mixing, fermenting, adding sodium selenite and water, stirring, fermenting, filterint to obtain mother liquid, adding xanthonic acid and stirring. It can increase the Se content and yield of agricultural crops.

The invention discloses a method for carrying out rich-selenium culturing of plelmtus eqngiu by utilizing sodium selenite. The method provided by the invention is characterized by comprising the following steps: mixing a rich- selenium culturing material additive the weight of which accounts for 1-10% of the total weight of a culturing dry material into the culturing dry material; culturing according to a common culturing method, thus obtaining rich-selenium plelmtus eqngiu, wherein the content of the selenium in the rich- selenium culturing material additive is 0.5-100mg/kg, the numerical values of the particle sizes of the particles of the rich-selenium culturing material additive are distributed in multiple different numerical vaue intervals within a range from 0.005mm to 5.0mm, the particles with the particle size of 1.0-5.0mm accounts for 10wt% of the total additive, and the particles with the particle size of 0.005-0.1mm at least accounts for 40wt% of the total additive; and the rich-selenium culturing material additive is prepared from the following raw materials in parts by weight: 100 parts of corn cob powder and 0.0011-0.022 part of sodium selenite. The plelmtus eqngiu cultured by the method has the advantages of high selenium utilization ratio and stable selenium content in batches; and the method ensures no hidden selenium contamination trouble and is convenient to operate and easy to popularize.

The invention discloses a cultivation method of pitayas and belongs to the technical field of agricultural planting. The cultivation method includes screening varieties, raising seedlings by cutting, preparing soil and setting posts, planting, irrigating and fertilizing, controlling diseases and pests, performing field management and the like. The cultivation method has the advantages that the space of a pitaya planting base is optimized, pitaya cultivation racks in rows are utilized to increase pitaya planting density, an interval of 2.5-2.8m is reserved between every two planting ridges to serve as the passageway for manual and mechanical operation, manpower cost and management cost can be lowered, high pitaya yield and good pitaya quality are achieved, the produced pitayas are rich in selenium content and meet the requirements of selenium-rich fruits, and the method is suitable for being popularized and used in a large-scale manner.

The invention discloses a cultivating method for selenium-rich feed and a selenium-rich abalone. The total selenium content of the selenium-rich abalone is 200 to 1500 Mug/kg, wherein the organic selenium content is greater than or equal to 80 percent. The cultivating method for the selenium-rich abalone comprises the steps that the organic-selenium-rich feed is fed to the abalone every day, wherein the organic-selenium-rich feed comprises following components by weight part: 2 to 6 weight parts of ground high-selenium corn flour, 1 to 5 weight parts of ground high-selenium wheat flour, 1 to 5 weight parts of ground high-selenium soybean flour, and 89 to 98 weight parts of conventional abalone feed; and the selenium content of the organic-selenium-rich feed is in the range of 300 mu g/kg to 1000 mu g/kg. The abalone cultivated by using the cultivating method is rich in selenium elements and integrally has a uniform selenium content; and the cultivating method disclosed by the invention has the advantages that the selenium content and the organic selenium proportion of an edible part of the abalone are increased and standardized large-scale production can be realized.

The invention mainly relates to the technical field of breeding, and discloses a method for breeding selenium-rich Xinghua broilers. The method comprises the steps of hatching egg hatching, chicken water drinking, chicken feeding and adult chicken management. The method is simple, the hatchability is 91%, the survival rate reaches 94%, the organic selenium content of chicken is 21.34 microgram/100 g, the marketing period is shortened by 16-20 days, economic income is increased by 13.2%, meat is delicious, nutrients are balanced, absorption is easy, and the human body immunity is enhanced. When hatching eggs are hatched, a sodium selenite solution is sprayed to keep hatching humidity, the organic selenium content in chickens is increased, embryo vigor is enhanced, and the hatchability is increased. In the chicken breeding process, the chickens drink chicken liquid and fed with chicken feed, nutrition is rich, digestive absorption is promoted, the organic selenium content in the chicken is increased, the disease resisting capacity is improved, and the survival rate is increased. Adult chickens are fed with chicken feed and adult chicken water, nutrition is balanced, the organic selenium content is rich, digestive absorption is fast, the sick rate is reduced to 4%, and the economic income is increased.

The invention discloses a preparation method of a selenium-containing protein in a selenium-enriched yeast, which mainly comprises the following steps: (1) performing high-pressure homogenizing and crushing on a selenium-enriched yeast, and then centrifuging; (2) adding 75-90% (percentage by mass) of ammonium sulfate into the centrifuged supernatant, stirring, then centrifuging to collect precipitate, dissolving the precipitate in a buffer solution, dialyzing a dialysis bag, performing dewatering concentration with polyethyleneglycol to a smaller volume, and performing vacuum freeze-drying to obtain a crude protein; and (3) dissolving a little dry crude protein powder in a Tris-HCl buffer solution, passing through a 0.22 mu m microporous filtering film, then loading onto a Sephadex column, eluting under the conditions that the flow rate is 0.5-3 ml/min, the detection wavelength is 280 nm and the eluate is a 50-150 mmol/L Tris-HCl buffer solution, and collecting a protein component. Compared with the prior art, the preparation method achieves the advantages of high crushing ratio, sufficient crude protein extraction, high selenium content in the purified protein and high purity of the targeted selenium-containing protein.

The invention discloses a method for breeding selenium-rich chickens in a hillside orchard. The method comprises steps as follows: a chicken house is built; chicken brooding is performed at the constant temperature; chicken house management is performed, insect-proofing mats prepared from wormwood, herba houttuyniae, leaves of melia azedarach, leaves of sassafras trees and selenium-rich soybean straw are laid on the ground of the chicken house, the insect-proofing mats which have been used are used for breeding earthworms, a Chinese herb medicine sterilization solution is sprayed once on the wall and the ground of the chicken house every 5-7 days, and the earthworms are bred in the specific method as follows: the insect-proofing mats which have been used are mixed with decayed fruits and leaves falling on the ground of the orchard, black soil, selenium mineral powder and a microbial agent in a flat and shade place of the orchard to be made into breeding compost, and earthworms are put into the breeding compost for breeding; chicken feed is prepared, chickens under three weeks are fed with first selenium-rich chicken feed, chickens which are 3-6 weeks old are fed with second selenium-rich chicken feed and chickens over six weeks are fed with third selenium-rich chicken feed; immune work is performed. With the adoption of the method, the survival rate of chicks and growing chickens and the content of selenium in chicken can be increased, and accordingly, the economic benefits of farmers can be increased.

The invention discloses a biological organic selenium-enriched fertilizer. The biological organic selenium-enriched fertilizer is prepared from the following main components in parts by weight: 50-60 parts of pig manure, 30-40 parts of pigeon manure, 10-20 parts of maize straw, 6-10 parts of nano carbon black, 10-16 parts of oyster shell powder, 4-6 parts of selenium-containing substances, 5-7 parts of green juice, 5-7 parts of calcium ammonium nitrate, 5-7 parts of silicon sulfate, 5-7 parts of strains and 20-30 parts of potassium humate. The manure of livestock and poultry and plant fibers are added into the biological organic selenium-enriched fertilizer; comprehensive nutrition is supplied to growth of crops; meanwhile, the strains are used for fermenting the plant fibers and the manure of livestock and poultry, decomposing organic compounds such as macromolecular proteins and the like in the plant fibers and the manure of livestock and poultry and degrading the organic compounds into nutritional components which are suitably absorbed by the plants; the absorption to nutritional substances of the crops can be increased.

The invention discloses a saline-alkali soil modifier prepared through vinegar residues, and relates to the technical field of soil modifiers. The modifier is prepared from, by weight, 10-15 parts of vinegar residues, 5-10 parts of distillers' grains, 4-8 parts of cane molasses, 90-100 parts of selenium-rich crop straw, 15-20 parts of coco coir, 10-15 parts of pomace, 10-15 parts of camellia oleosa seed oil, 8-12 parts of bean pulp, 6-10 parts of leaves of Illicium anisatum, 5-8 parts of yellow cinnamon leaves, 5-8 parts of maltodextrin, 4-6 parts of sanguisorba officinalis, 3-4 parts of silkworm chrysalis meal, 2-3 parts of bran-wax, 2-3 parts of zeolite powder, 1-2 parts of sodium silicate and 0.5-1 part of rare earth. Food leftovers including vinegar residues, distillers' grains, cane molasses, pomace and bean pulp serve as the raw materials, production cost is reduced, resources are reasonably utilized, and contained rich nutrients can sufficiently meet the growth requirement of crops.

The invention discloses a high-yield selenium-enriched rice planting method capable of efficiently reducing cadmium content in rice. The method comprises the steps of low-cadmium accumulation speciesselection, soil remediation and multiple agronomic measures. By means of the method, the cadmium content of planted rice on a piece of cadmium-polluting rice land can be significantly reduced, the method has the advantages of being simple, efficient and free from secondary pollution; rice yield is improved, rice quality is improved while the yield is improved, planting economic benefits are improved, and the method is suitable to low cadmium rice production in a cadmium-polluting rice planting region and has broad application prospects.