64results about How to "Enhance cold and drought resistance" patented technology

The invention discloses a selenium-enriched rice planting method. The method includes the following steps of land selecting, field finishing, seed treatment, sowing and seedling raising, seedling transplant, fertilizer management in the later period, irrigation treatment and selenium-enriched rice harvesting. Before seedlings are transplanted, selenium-enriched base fertilizer in a complex state is applied in the rice field, and a certain selenium source is provided for rice; at the beginning of panicle emergence and flowering of rice and grouting, the selenium-enriched compound fertilizer is applied in the rice field again, the selenium-enriched fertilizer is evenly distributed around roots of the seedlings in the growth process, the selenium in a complex state from soil is absorbed by the roots of the plants and then enters the inner cycle systems of the plants and participates in synthesis of protein through the path from stems to leaves to flowers and fruits, and finally, the selenium in an ionic condition from soil is stored in the seeds in the form of selenoprotein. The selenium-enriched rice tastes good and is high in nutrient matter content, and the content of the selenium of the rice can reach over 0.2 mg / kg and meets the national selenium-enriched standard.

The invention relates to the field of environmental protection and discloses a soil conditioner, as well as a preparation method and application thereof. The soil conditioner comprises raw materials in parts by weight: 50 to 60 parts of wood fibers, 14 to 18 parts of biochar, 25 to 30 parts of humus, 3 to 6 parts of polysaccharide, 1 to 3 parts of seaweed essence, 0.001 to 0.005 part of Trichoderma and 0.001 to 0.005 part of nitrogen fixation bacteria. The invention also discloses a preparation method, the application and a using method of the soil conditioner, the soil conditioner has the advantages of improving soil physical and chemical properties and promoting the turf forming performance of plants, and the preparation and application methods are simple and convenient, so that the popularization and application are facilitated.

The invention discloses a livestock and poultry feces organic fertilizer fermentation compound functional package, which comprises a compound functional package A and / or a compound functional packageB. The compound functional package A comprises a compound microbial agent, a compound enzyme preparation, humic acid, white spirit vinasse powder and zeolite powder; the compound functional package Bcomprises isomaltooligosaccharide, molasses meal, monopotassium phosphate, magnesium sulfate, ferrous bisglycinate, manganese bisglycinate, bamboo vinegar powder and citric acid. The package A and thepackage B are combined, the fermentation speed can be greatly increased, quick heating deodorization and thorough decomposition can also be achieved in the low-temperature season, diseases and insect pests and antibiotic residues can be effectively removed, the quality is stable, the quality guarantee period is long, and practicability is high. The invention further discloses a preparation method and application of the compound functional package, the compound functional package is used for livestock and poultry feces organic fertilizer fermentation, the harmless treatment efficiency is high, resource utilization is high, an obtained organic fertilizer product is high in functionality and comprehensive in nutrition, and has no toxicity, stink, harm and pollution, and the organic fertilizer use standard requirement is met.

The invention discloses a planting method for organic rice in a mountainous area. The planting method includes the following steps of address selecting, field preparing, seed processing, sowing and seedling raising, seedling transplanting, insect pest treating, later-stage fertilizer managing, irrigation processing, harvesting and straw and rice husk processing. According to the planting method for the organic rice in the mountainous area, fertilizer and pesticides are not used in the planting process for preventing insect and diseases, a solar insect killing lamp is mainly adopted, and ducks, frogs and fishes are stocked in a paddy field. The solar insect killing lamp integrates energy conservation, environmental friendliness, safety, illumination and the function of inducing and killing mosquitoes and other insects, and the insect killing function is high. According to the planting method, ducks, carps and frogs are stocked into the field, not only insects are removed, and particularly, a biologic chain wherein mutualistic symbiosis of species and cyclic utilization are achieved is formed in the field. Duck manure is used for fertilizing the field so that fodder organisms are multiplied to be fed to ducks, and meanwhile the rice growth is also promoted. The organic rice is good in taste and high in nutrient content, and the organic rice in the mountainous area is full in seed and low in chaff and hull rate.

The invention relates to an inorganic-organic nutritional soil improver which is characterized by being prepared from the following raw materials in percentage by weight: 50-80% of attapulgite clay, 10-30% of an active humic acid organic fertilizer, 2-8% of hydrolyzed polyacrylonitrile ammonium salt, 2-8% of potassium polyacrylate, 1-5% of Nanmu powder and 1-5% of sodium hexametaphosphate. The soil improver provided by the invention can be suitable for same soil texture or same power of hydrogen of different soils such as sandy soil, clayey soil and loam, so that not only can the volume of soil and the total porosity inside the soil be effectively reduced, but also the granular structure of the soil can be further remarkably improved. The soil improver has a certain adsorption effect to moisture and fertilizer in the soil, so that evaporation of water and the loss of the fertilizer in quantity are alleviated, the production cost is low and the application rate is small.

The invention provides a paraplesia cutting seedling raising and planting method which comprises the step of seedbed settling, soil scarifying and fine grinding, weed removing, bio-organic fertilizer adding, and bio-organic fertilizer and surface layer soil even mixing and further comprises the following five steps of cutting shoot selecting, cutting pretreatment, cutting, ecological bag seedling raising and planting. According to ecological bag seedling raising, an ecological bag is filled with seedling raising soil, and a rooted paraplesia seedling with a soil ball is transplanted into the ecological bag to be cultivated for one to two months. According to the paraplesia cutting seedling raising and planting method, the technology of combining land cutting and ecological bag cultivating is adopted, the survival rate and the preserving rate of paraplesia planting are increased, the cultivated ecological bag seedling is a whole-root seedling and provided with the soil ball, the root is not damaged in the planting process, and the survival rate of planting reaches more than 90 percent. It is shown by a field test in a black river village in the Maixi village of the Zoige county, the survival rate obtained after a paraplesia cutting bare-rooted seedling is planted is 72 percent, the preserving rate obtained after one year is 56 percent, and according to the paraplesia cutting seedling raising and planting method, the paraplesia planting survival rate is 95 percent, and the preserving rate obtained after one year is 88 percent.

The invention relates to a polyaspartic acid bacterial fertilizer and a production method and application thereof. The polyaspartic acid bacterial fertilizer comprises polyaspartic acid or salts thereof, bacillus megatherium, colloid bacillus, bacillus licheniformis, bacillus subtilis, humic acid, and amino acid. The polyaspartic acid bacterial fertilizer can be used for improving the soil, helping crops to absorb nutrient elements including nitrogen, phosphorus, potassium and trace elements, promoting the growth of roots, reducing contamination to environment, activating the soil and reducing the use amount of the fertilizer.

The invention discloses an all-nutrition multivitamin organic fertilizer, belonging to the technical field of organic fertilizers. The all-nutrition multivitamin organic fertilizer comprises the following substances in percentage by mass: 1-30% of active carbon, 1-90% of organic carbon, 1-50% of fermented animal manure, 1-90% of feather meal, 1-40% of monosodium glutamate pulp, 1-30% of starch pulp, 1-45% of sugar pulp, 1-10% of kaolin and 1-30% of zeolite powder. The all-nutrition multivitamin organic fertilizer is green and environment-friendly, all-around in fertilizer nutrition and easy to store, can be decomposed and absorbed within a short time and can retain soil moisture.

The invention relates to the technical field of agricultural planting, in particular to a tomato grafting culture planting method. The tomato grafting culture planting method specifically comprises the steps of culturing stocks, culturing and selecting scions, carrying out scion processing before grafting, selecting the stocks to carry out grafting, carrying out seedling management after grafting and carrying out field management. By reasonable technical processing, influence of diseases and insect pests can be reduced and cold resistance and drought resistance of tomato plants can be reinforced, so that the fruit setting rate is improved, fruit setting quality is promoted, planting cost is saved and incomes of farmers are increased.

The invention belongs to the field of agricultural fertilizer, relates to a foliage fertilizer, in particular to a foliage fertilizer for a longan tree and a production method of the foliage fertilizer. The foliage fertilizer is prepared from the following raw materials in parts by weight: 7 to 10 parts of biochemical fulvic acid potassium, 12 to 15 parts of urea, 5 to 7 parts of washing powder, 7 to 13 parts of monopotassium phosphate, 8 to 14 parts of amino acid-chelated copper and boron, 6 to 13 parts of sucrose-complexed manganese and calcium, 8 to 12 parts of diaminoferric xanthohumate, 1 to 2.5 parts of sophocarpidine, 14 to 20 parts of magnesium sulfate and 6 to 10 parts of zinc sulfate. The foliage fertilizer prepared by the production method disclosed by the invention is good in fertilizer efficiency, is rich in multiple medium trace elements required by the longan tree, and meets nutritional requirements of longan; after application, the foliage fertilizer has a significant prevention effect for physiological yellow coloring, small leaf, mottled leaf, roll leaf and the lime of the fruit tree; by using the foliage fertilizer, toot system development of the fruit tree can be promoted, disease invasion is prevented, and disease resistance, drought resistance and cold resistance of crops are improved; the foliage fertilizer has effects of improving the growth speed of longan, promoting fruiting and swelling, improving the yield and the quality of longan, improving the resistance of the fruit tree and sterilizing.

The invention provides a green planting method for blueberries. The method comprises the steps of (1) garden selection; (2) soil improvement; (3) preparation for planting; (4) planting; (5) water and fertilizer management; (6) disease and pest prevention and control; (7) pruning; (8) timely harvesting and overwintering protection. Compared with the prior art, the method can better improve soil in an economical manner and is a highly-efficient green cultivation method. The method can better adjust the pH of soil, enables the pH of soil to be kept at 4.3-4.8, which is most suitable for the growth of blueberries, can increase the organic matter content of soil to more than 8%, can improve the soil structure and maintain the soil moisture content, and can achieve the effects of green planting and high yield. The method effectively increases the fruit setting rate of blueberries and increases the yield.

The invention relates to the field of environment protection, and discloses a dangerous slope reinforcing and green returning device and method. The device comprises a steel wire net, anchor rods, outsoil, a soil improving fiber mixture, first vegetation seeds, second vegetation seeds and anti-erosion fiber mixture. After being mixed, the out soil and the soil improving fiber mixture are placed on the surface of a primary dangerous slope structure to form a secondary dangerous slope structure; the anti-erosion fiber mixture is placed on the surface of the secondary dangerous slope structure to form the dangerous slope reinforcing and green returning device. The invention further discloses a dangerous slope reinforcing and green returning method. The technical defects that during present dangerous slope reinforcing and green returning, cost is high, construction is complicated and complex, time and labor are wasted, and landslide easily happens during repairing can be effectively overcome.

The invention provides a humic acid biofertilizer and a preparation method of the humic acid biofertilizer. The organic raw material includes humic acid, ammonium bicarbonate, rapeseed meal, tung oil cake, rice bran, chicken blood, ethanol and soybean. The method comprises weighing humic acid, rapeseed meal, tung oil cake, rice bran and soybean according to weight parts, pulverizing, respectively, mixing with chicken blood and ethanol, and stirring; delivering the mixture to a fermentation tank, adding a proper amount of an enzyme agent, and fermenting to obtain fermented substances; and pulverizing the fermented substances to obtain a humic acid biofertilizer free of an inorganic fertilizer. The humic acid biofertilizer in the invention has significant yield increase effect compared with the other fertilizers. Meanwhile, the humic acid biofertilizer can effectively improve the sugar content of various crops and increase the content of vitamin C; can enhance the cold resistance and drought resistance of crops, and has certain effects of preventing rot disease of fruit trees and downy mildew of vegetables; can improve the emergence rate of crops, promote development and growth of root systems, and increase absorptivity; and can enhance the respiration rate and photosynthesis of crops, and improve the bidirectional regulation effect of enzymes in crops.

The invention relates to slow-release compound fertilizer with drought resisting, water retention and soil improvement functions and a preparation method thereof and belongs to the technical field ofcontrolled-release fertilizer. The slow-release compound fertilizer provided by the invention is prepared by taking urea, monoammonium phosphate, potassium fertilizer, a medium and trace element mixture, a filling material, a urease inhibitor, celestine powder, weathered coal, epoxy resin, corn starch, a water retention agent and a compound microorganism bacterium agent as raw materials through arotary drum steam granulation technology. The water retention agent is used as a carrier of fertilizer nutrients and organic and inorganic harmful substances are not remained; moisture evaporation iseffectively inhibited and water and soil loss is prevented; meanwhile, the fertilizer nutrients can be adsorbed and combined and release of the fertilizer nutrients is delayed, so that the loss of thefertilizer nutrients of soil is reduced. The added celestine powder contains rich strontium element, has a promotion effect on the growth of crops and also has a killing effect on harmful bacteria inthe soil; the celestine powder is mutually matched with the compound microorganism bacterium agent, so that the disease-resisting capability of the soil is effectively improved and a soil structure is adjusted.

The invention relates to a method for preparing an organic fertilizer by bean meal microbial fermentation and application of the method. The method comprises the following step: S101: uniformly mixing bean meal with water, and adding a fermentation strain for fermentation; and S102: processing a product obtained in S101 to obtain the organic fertilizer, wherein the product obtained in S101 is digested by use of a leach liquor, then filtering is performed, a filtrate is collected to obtain a liquid organic fertilizer, and after digestion by use of the leach liquor, a solid obtained after filtering is dried to obtain a solid organic fertilizer. According to the method, pure bean meal is adopted as the raw material, and the organic fertilizer is prepared by use of microbial fermentation, is rich in such biomass ingredients as organic enzymes and bioactive peptide, is suitable for various crops, and belongs to green, healthy, nutritional and safe organic fertilizers. The prepared organic fertilizer can promote fruit enlargement, coloring and accumulation of dry substances in fruit, improves the utilization ratio of the crops to medium and large trace elements to increase the yield of the crops, and is a first-choice organic fertilizer for producing the pollution-free, environment-friendly and green organic crops.

Provided is a seedling growing and filling method for potatoes. The invention relates to a seedling growing and filling method for potatoes. An objective of the invention is to provide a seedling growing and filling method for potatoes. The seedling growing and filling method for potatoes comprises: 1, accelerating germination: placing cut sprout tubers in a mixed composite reagent, soaking for 15 min, taking the sprout tubers out, piling up the sprout tubers and wet sand in a layered manner (that is, placing a layer of sprout tubers on a layer of wet sand), keeping stacking temperature be about 18-20 DEG C, to make sprouts grow to 2-3 cm, and processing the sprouts under scattered light for 2-4 days; 2, bedding: putting the accelerated sprouts uniformly in a compound substrate at an interval of 1 cm, and then covering 10-12 cm wet compound substrate, and building an arched shed to cover; 3, cutting sprouts and transplanting: after sprouts come up out of ground, gently pushing aside the covered substrate, cutting a 5-6 cm sprout with roots, planting the sprout on the position which needs filling the gaps with seedlings, adding required amount of water; then covering the pushed aside compound substrate again, after about 7-8 days, performing next sprout cutting and seedling filling, and so forth.

The invention discloses a wine grape industrialized hard-twig graft seedling cultivation method. The method includes steps: S1, seedling collection and storage; S2, seedling treatment; S3, a process of selecting stock and graft twigs uniform in thickness, adopting a Germany omega one-time forming graft machine for grafting, and quickly dipping a graft union in molten union wax solution to seal the graft union, wherein the wax solution temperature is kept in a range of 76-80 DEG C; S4, electric hot bed based root growth promotion; S5, greenhouse seedling cultivation. The method is simple and easy in operation, time saving and land saving are realized, cultivation of more than 1,500,000 grafted seedlings per hm<2> can be realized, graft union combination is superior to that of traditional hard-twig grafting, seedling cultivation cost is lower than that of traditional graft seedling cultivation, cold resistance and drought resistance of seedlings can be improved by greenhouse seedling hardening, high seedling quality and high survival rate are realized, grape seedling cultivation and output in the same year can be realized, and fruiting in the next year of orchard construction to acquire benefits can be realized.

The invention discloses a pleurotus nebrodensis residue culture base material and a preparation method thereof. The preparation method comprises the following steps of: weighing the following materials in parts by weight: 55 to 65 parts pleurotus nebrodensis residue, 35 to 40 parts of feces of livestock and poultry, 0.5 to 1.5 parts of ammonium sulfate, 1 to 1.5 parts of phosphorus pentoxide, 1 to 2 parts of Potassium polyphosphate, 1.5 to 2.5 parts of lime, 0.5 to 1.5 parts of saccharose, 2 parts of calcium superphosphate, 0.5 to 1 part of bagasse, 1 to 2 parts of castor cake, 0.5 to 1 part of kelp residue, 1 to 1.5 parts of peanut shell powder, 1.5 to 2 parts of soya bean meal and 0.5 to 1.5 parts of various wood chips; and building up a pile; and overturning the pile four times. When the culture base material is for culturing shitake mushroom, the fruiting period of shitake mushroom arrives 8 to 10 days early, the harvesting period of the shitake mushroom is prolonged by 12 to 16 days, the output of the shitake mushroom is increased by 35 to 40%, the spawn running speed of the shitake mushroom is 1.16 to 1.18cm per day, and the spawn running of the shitake mushroom needs 14 to 18 days; and therefore, the pollution of the pleurotus nebrodensis residue to environment is reduced; and the biotransformation efficiency of the culturing raw material is improved.

The invention discloses a compound biofertilizer. The compound biofertilizer is characterized by comprising the following components in percentage by weight: 9-18% of soil organic matter, 1-2% of a plant growth regulator, 6-12% of a microbial agent and the balance of chemical elements required for the plant growth. The preparation technology of the compound biofertilizer is characterized in that a twice sectional-type baking technology is adopted so as to guarantee that the condition the activity of the biofertilizer is lowered due to the high-temperature process is avoided. According to the invention, soil can be provided with beneficial microorganisms and the required nutritional elements by the compound biofertilizer, and the microorganism activity of soil can be enhanced, so that the fertility of soil can be improved; the pesticide residue can be degraded; the quality and stress resistance of crops can be improved; the physical character of soil can be improved.

The invention discloses a hericium erinaceus dreg culture base material and a method for cultivating mushroom by using the hericium erinaceus dreg culture base material. The mushroom, which is produced from 40-65 parts of hericium erinaceus dreg, 35-40 parts of cow dung, 0.5-1 part of rice bran, 1-1.5 parts of urea, 1.5-2 parts of ammonium nitrate, 1.5-2.5 parts of lime, 1-2 parts of gypsum, 2 parts of calcium superphosphate, 0.5-1 part of grain stillage, 0.5-1.5 parts of wheat straw hood, 1-1.5 parts of oil residue and 1-2 parts of potassium oxide through a series of steps such as piling, fermenting, sowing, covering soil, fruiting and harvesting, has the advantages of a fungus running speed ranging from 1.16 to 1.18 centimeters per day, fungus running time ranging from 16 to 20 days, advancing of a fruiting period by 5-8 days, prolonging of a mushroom harvesting period by 10-15 days, and increase of the mushroom yield by 30%-50%. The hericium erinaceus dregs are recovered and utilized, and the pollution on the environment caused by the hericium erinaceus dregs is reduced.

The invention discloses a flower water culture nutrient solution and a preparation method thereof. The flower water culture nutrient solution comprises the following raw materials by weight: 15-25 parts of urea, 25-35 parts of potassium dihydrogen phosphate, 3-8 parts of copper sulfate, 2-5 parts of calcium carbonate, 2.5-4.5 parts of ferrous sulfate, 1-3 parts of EGTA, 3-8 parts of medical stone, 20-50 parts of a steroid saponin solution, 3-7 parts of polyoxyethylene amide, 3-5 parts of fruit peel, 0.8-1.5 parts of a rare earth compound, 2-5 parts of a Chinese herbal mixture, 0.5-1.3 parts of bio-enzyme, 1-2 parts of rooting powder, and a proper amount of water. By controlling the raw material variety and ratio, the flower water culture nutrient solution meets the demand of flowers for nutrients at the growth period, and has the functions of prolonging the flowering period, improving flower immunity, preventing diseases and pests, and improving the cold and drought resistance ability of flowers.

A composite organic fertilizer special for fruit trees belongs to the field of fertilizers, and is prepared from the following raw materials in parts by weight: 20-60 parts of a potassium sulfate type composite fertilizer, 40-55 parts of crop straw, 20-30 parts of livestock and poultry excrements, 0.01-0.03 part of VT-1000 type fermentation bacterial strain, and 0.1-0.3 part of an anti-caking agent. A preparation method of the composite organic fertilizer comprises: mixing livestock and poultry excrements, crop straw and VT-1000 type fermentation bacterial strain according to a ratio, putting into a fermentation tank and performing once fermentation, and then performing stacking fermentation; mixing the materials subjected to biological fermentation with the potassium sulfate type composite fertilizer according to a ratio, stirring, crushing, and performing granulation, baking, cooling and screening, so as to obtain a compound organic fertilizer primary granule; and finally adding the anti-caking agent and performing coating processing to obtain the product. The provided composite organic fertilizer special for fruit trees contains a large amount of organic matters and microbes, has relatively high fertilizer utilization rate during usage, and helps to improve fruit tree quality and yield and improve soil structure.

The invention discloses straw mushroom dreg cultivation base stock and a method for cultivating white mushroom by utilizing the same. The straw mushroom dreg cultivation base stock comprises the following components in parts by weight: 40-70 parts of straw mushroom dreg, 25-35 parts of chicken excrement, 1-2 parts of calcium carbonate, 1-1.5 parts of urine, 0.5-1 part of ammonium bicarbonate, 1-1.5 parts of lime, 0.5-1.5 parts of phosphorus pentoxide, 2 parts of calcium superphosphate, 1-1.5 parts of potassium chloride, 1-2 parts of straw, 1.5-2.5 parts of magnesium sulphate, 0.5-1 part of cassava dreg and 0.5-1.5 parts of plant ash. The white mushroom is produced by steps of piling, fermenting, sowing, earthing, fruiting and harvesting, mushroom growing speed is 1.15-1.16cm per day, mushroom growing time is 15-20 days, fruiting period is 5-8 days ahead, harvesting period is prolonged by 12-15 days, yield of the white mushroom is increased by 30-35%, the straw mushroom dreg is recycled, and pollution of the straw mushroom dreg to the environment is reduced.

The invention provides straw fermented fine organic fertilizer and a preparation method of the straw fermented fine organic fertilizer. The straw fermented fine organic fertilizer is prepared by mixing a straw fermented material, soybean cakes, ammonium sulfate, calcium magnesium phosphate fertilizer, manganese sulfate, boric acid, zinc sulfate, ferrous sulfate, a conditioning agent, ammonium molybdate and copper sulfate according to a certain ratio. According to fertilizer demanding characteristics of crops at different growth periods, the organic fertilizer provides fertilizer efficiency persistence for the crops and three demanded elements including nitrogen, phosphorus and potassium and a plurality of medium and trace elements for the crops; soil is improved by utilizing good microorganisms in a farm-oriented microorganism bacterium agent material fermented by corn straw, soil acidification is reduced, the soil fertility is increased and the utilization rate of the fertilizer is improved; advantages of the two types of fertilizer are combined; meanwhile, calcium and magnesium and other medium and trace elements, which are needed by melon and fruit crops, are added, so that physiological diseases caused by later-period element deficiency of melons and fruits are effectively solved.

The invention discloses a plant extract, a plant fertilizer containing the plant extract and application of the plant fertilizer, wherein a preparation method of the plant extract comprises the following steps of adding plant kernels into a dry distillation kettle; when materials are heated to 135 DEG C, performing constant temperature for 1 hour; then, raising the temperature to 220 DEG C; maintaining the temperature for 1 hour; collecting dry distillation liquid in each time period; performing mixing and still standing for 70 hours; performing sedimentation and separation; separating out a transparent layer by a siphonage method; adding 15 percent of active carbon into the separated transparent layer liquid; heating to the materials to 95 DEG C; maintaining the temperature for 50 minutes; performing filtering; collecting filter liquid; putting filter liquid into a distillation kettle; performing distillation for 2.5 hours at 120 DEG C; collecting distillation liquid; obtaining a product. Through the plant extract, the plant fertilizer and the application provided by the invention, the soil damage problem due to the use of the chemical fertilizer is solved; the plant fertilizer containing the plant extract is used; the crop leaf and root nutrition environment can be regulated; the soil ecological balance is recovered; the soil substance conversion function is promoted; the plant leaf and root system development is facilitated; the crop photosynthesis is enhanced.

The invention discloses a celery high-yield biological regulation cultivation method, and relates to a vegetable cultivation method. The method belongs to the field of vegetable cultivation. The method is characterized in that celery seeds are soaked continuously for 10-12h in warm water with a temperature of 5-10 DEG C; the seeds are washed and wrapped by using a cotton cloth, and are shaken loose; the seeds are placed for 10-12h in air under a room temperature; the above steps are repeated for 5-7 days; after the seeds are sowed on seedbed soil, the seeds are covered with a black shading mesh; conventional management is carried out; and when each celery seedling has 5-6 true leaves, seedling transplanting and field planting is carried out. The method has the following advantages: selected seedbed soil and transplanting and field planting soil are suitable for celery growth, and the seeds are subjected to germination treatment before sowing, such that seed germination rate and celery yield are greatly increased, seed cold resistance and drought resistance are enhanced, pesticide and chemical fertilizer doses are reduced, and celery quality is improved; planting investment is low, and planting benefit is high; considerable social economic benefit can be brought in, and great ecological and environmental benefits can be produced.

The invention discloses a high-quality high-yield fertilization method for continuous cropping of sweet potatoes. The method is used for fertilizing sweet potatoes planted in a continuous cropping mode, and belongs to the technical field of crop cultivation. The invention particularly relates to the high-quality high-yield fertilization method for continuous cropping of sweet potatoes to overcomethe problems of low yield and poor quality caused by existing continuous cropping planting of sweet potatoes. According to the invention, 150-200 kilograms of a balanced biological organic-inorganic compound fertilizer is applied to each mu of land in a bottom application manner; 30-50 kg of a high-concentration high-potassium humic acid complex organic-inorganic compound fertilizer is applied once to each mu of land through flushing in a potato block expansion period; high-content organic matter, humic acid and polyglutamic acid in the biological organic-inorganic compound fertilizer undergoa deep complexing reaction with nitrogen, phosphorus and potassium, so water retention and fertilizer retention are more efficient, bottom application effect is better, and fertilizer damage hardly occurs when an application amount is increased; in addition, the utilization rate of nitrogen, phosphorus and potassium can reach 70% or above, a base fertilizer is applied heavily, topdressing is conducted slightly, the yield of the continuously-cropped sweet potatoes can reach 4500-6500 kg per mu, the quality of the sweet potatoes is high, and continuous cropping harm and water, fertilizer and manual input are reduced.

The invention relates to the technical field of agricultural planting and discloses a seedling culture method for autumn-sowing soybeans. The method has the advantages that the drought and cold resistance of processed seeds can be increased, the root system of soybean seedlings can be optimized, the proportion of fibrous roots and lateral roots in total root length is increased, absorption of moisture and nutrition in soil is benefited, net photosynthetic rate is increased, and a sowing management method can guarantee high germination rate and neat seedling emergence; after the autumn and winter, the cultured soybean seedlings are simple in seedling management, robust seedlings can be cultured favorably, seed use amount can be reduced by 15-20%, yield can be increased by 18-25%, and accordingly labor productivity and economic benefits can be increased greatly.

The invention discloses a seed dressing agent applicable to paddy rice. The seed dressing agent is specifically prepared from the following components in parts by weight: 40 to 60 parts of plant-derived extract, 3 to 5 parts of imidacloprid, 2 to 5 parts of mefenoxam, 3 to 6 parts of salicylic acid, 0.06 to 0.2 part of ammonium citrate, 1 to 3 parts of auxiliary agent, 0.2 to 3 parts of macromolecular water-absorption resin, 3 to 5 parts of abscisic acid, 1 to 3 parts of Nashi 778, 3 to 5 parts of trace elements and 3 to 5 parts of fulvic acid. The seed dressing agent disclosed by the invention has the beneficial effects that all effective components in the seed dressing agent have a remarkable synergistic effect and also have effects of retaining water and preventing and controlling diseases and insect pests; the seed dressing agent has a very good conduction property and various acting sites; the activity of a defense enzyme in seeds can be improved, and the content of chlorophyll ofseedlings and the activity of root systems can be increased.

The invention discloses a regulating fertilizer for improving the medium-trace element content in corn kernels in a Huang-Huai-Hai region and the biological effectiveness of Zn and Fe and an application method and belongs to the technical field of effect improvement of chemical fertilizers. The regulating fertilizer is prepared from, by weight, 50-70 parts of fresh seaweed, 20-30 parts of cotton seed shells, 20-30 parts of peanut shells, 10-20 parts of soybean meal, 2040 parts of corn straws, 20-30 parts of animal waste and 2-4 parts of EM bacteria. A preparation method of the regulating fertilizer comprises the following steps that the fresh seaweed is minced into pulp, cell walls are broken to obtain seaweed liquid; the cotton seed shells, the peanut shells, the soybean meal and the corn straws are mixed with the animal waste and the EM bacteria, and wetting and fermentation are performed to obtain fermentation powder; the seaweed liquid and the fermentation powder are mixed and then are stirred evenly. It is found through contrast that after the regulating fertilizer is applied, the medium-trace element contents in all varieties of corn kernels can be remarkably increased, and the biological effectiveness of Zn and Fe in corns can be improved.