43results about How to "Increase soluble sugar" patented technology

The invention discloses a soil conditioner for treating saline-alkali soil, and belongs to the technical field of agricultural production. The soil conditioner is prepared by diatomite, attapulgite, halophilic bacteria, humic acid, fulvic acid and biological floras, 300 kilograms of water is added into fungi in the biological floras to prepare an aqueous solution, and the diatomite, the attapulgite and the halophilic bacteria are added into the aqueous solution; then the humic acid and the fulvic acid are mixed to be added into the aqueous solution to be mixed, and therefore particles are obtained. In tillage, the soil conditioner is applied along with bottom fertilization in soil turning, and can promote rapid growth of crops and increase the yield and incomes, and the quality of fruits is remarkably improved.

The invention relates to application of chitosan oligosaccharide aqueous solution to improve crop quality and usage of the chitosan oligosaccharide aqueous solution. The application of the chitosan oligosaccharide aqueous solution to improve crop quality is characterized in that the chitosan oligosaccharide aqueous solution contains, in weight percentage, 0.001%-0.01% of chitosan oligosaccharide, polymerization degree of the chitosan oligosaccharide is 2-20, and molecular weight of the chitosan oligosaccharide ranges from 500Da to 10000Da, and crops can be vegetables or fruit trees. The usage of the chitosan oligosaccharide aqueous solution to improve fruit quality includes: spraying the chitosan oligosaccharide aqueous solution to leaves of a vegetable crop with a short growth period about 3-5 months for three times every 7-10 days in the middle and late growth period; and spraying the chitosan oligosaccharide aqueous solution to leaves of a tree crop with a long growth period for three to five times every 10-15 days from a young fruit stage. The chitosan oligosaccharide belongs to natural extract, is harmless to crops and human bodies after application to the crops, is environment-friendly, and is simple in usage and easy in popularization.

The invention relates to a fertilizer, in particular to a Chinese medicinal residue biological organic fertilizer. The Chinese medicinal residue biological organic fertilizer is prepared from the following raw materials in parts by weight: 50 to 75 parts of Chinese medicinal residues, 15 to 35 parts of bran, 10 to 20 parts of charcoal and 0.05 to 1 part of enzyme microorganism. The living bacteria count in the biological organic fertilizer is more than or equal to 0.2 hundred million / gram, the weight percentage of organic matters is more than or equal to 45 percent, the weight ratio of total oxygen of nitrogen phosphorus and potassium is more than or equal to 5 percent, medium trace elements comprise calcium, magnesium, silicon, sulfur, iron, manganese, copper, zinc, boron, molybdenum and the like, and nutrient elements are abundant. A preparation method is simple in operation; experiments show that by applying the Chinese medicinal residue biological organic fertilizer on the basis of conventional fertilization usage, the yield of tomatoes can be improved, diseases and insect pests are reduced, the foundation is laid for high yield of the tomatoes, and the yield increasing rate is 6.98 percent; the fertilizer disclosed by the invention is applied on the basis of the conventional fertilization usage, the yield of cucumbers can be improved to different degrees, the yield increasing rate is 7.81 percent, and the foundation is laid for high yield of the cucumbers.

The invention discloses a bag-controlled sustained release fertilizer for a mango tree and an application method thereof. The bag-controlled sustained release fertilizer for the mango tree specifically involves preparation of a fertilizer bag, compositions of a fertilizer, and a fertilizer application method. According to the bag-controlled sustained release fertilizer for the mango tree and the application method thereof, a package bag is made of paper; the package bag is started to decompose spontaneously two years after the fertilizer is applied; soil and air are not polluted, and a soil loosening effect is achieved. Meanwhile, the fertilizer efficiency of the bag-controlled sustained release fertilizer is long; the nutrient utilization rate is high. The effects of improving crop yieldand improving crop quality can be achieved. The manpower and material resources used for applying the fertilizer can also be saved effectively; the fertilizer is really applied quantitatively and accurately according to the requirement of the mango tree; meanwhile, the concentration of quick effective nutrients of the soil can be kept stable; the defect that the nutrient concentration of fertilizer applied soil fluctuates greatly is overcome; the nitrogen utilization rate is improved by 10 percent. In addition, the effects of protecting oil and reducing environment pollution are also achieved.By promoting and applying the bag-controlled sustained release fertilizer, safety and environment friendliness can be achieved; the bag-controlled sustained release fertilizer has long-term ecological benefits and remarkable social and ecological benefits, benefits the nation and the people, and has a very broad prospect.

The invention discloses a tea flower beverage and a preparation method thereof. The tea flower beverage is characterized in that every 100 parts of the beverage is made from the following raw materials in parts by weight: 5-10 parts of tea flowers, 0.015-0.03 part of sodium D-erythorbate, 0.05-0.1 part of sodium bicarbonate and the balance water. The preparation method mainly comprises the two steps of making a tea concentrate and making the tea beverage. The reasonable preparation method is adopted, so that the original taste of the tea flowers is maintained.

Disclosed is a supplementing lighting method for improving cultivating quality of peonies for the Lunar New Year. The supplementing lighting method includes that different light rays are adopted in different growing stages of the peonies for supplementing lighting; for the germination stage, composite light with lighting intensity of 150-180Lux and formed by blue light and yellow light according to a proportion of 3-1:2-1 is adopted; for the squaring stage, composite light with lighting intensity of 160-210Lux and formed by red light and blue light according to a proportion of 3-1:2-1 is adopted; for the small wind bell stage, composite light with lighting intensity of 170-200Lux and formed by red light, blue light and yellow light according to a proportion of 3-1:2-1:2-1; for the big wind bell stage, composite light with lighting intensity of 170-200Lux and formed by red light, blue light and yellow light according to a proportion of 3-1:2-1:2-1; for the garden-peach color transparency stage, composite light with lighting intensity of 170-200Lux and formed by red light, blue light and yellow light according to a proportion of 3-1:2-1:2-1; for a week before the flowering stage, composite light of red light, blue light and yellow light according to a proportion of 3-1:2-1:2-1 is adopted; for a week after flowering, composite light of red light and blue light according to a proportion of 3-1:2-1 is adopted. By the supplementary lighting method, influences are generated on biological characteristics of peony plants, and nutritional growing and flowering quality of the peonies for the Lunar New Year is improved remarkably.

The invention discloses a compound reagent for improving the fruit-bearing rate and the calyx-removing rate of a Korla bergamot pear, comprising the following steps in w / w: 3%-8% of multi-effect triazole, 0.5%-1.5% of kinetin, 20%-25% of ethephon, 20%-25% of boric acid (H3BO3), 45%-50% of calcium nitrate (Ca(NO3)2 4H2O) and the balance of water. The calyx-removing rate, the false mother pear rateand the form mother pear rate of the Korla bergamot pear processed by the compound reagent provided in the invention are high, the compound reagent can obviously improve the single fruit weight of the bergamot pear and the contents of soluble solid-state materials and soluble sugars, reduce the index of a fruit shape and the contents of organic acids and inhibit the growth of fruit stems, the contents of the soluble sugars in the processed bergamot pear are sequentially reduced nearby peel, middle pulp and nearby kernels, and the contents of the organic acids are sequentially improved, thereby the fruit quality is improved, and the compound reagent has wide application and generalization value.

The invention discloses a humic acid fertilizer composition and application thereof, and a humic acid soluble fertilizer and application thereof. The humic acid fertilizer composition comprises, by weight, 4-10 parts of potassium fulvic acid, 0.4-20 parts of sugar alcohol and 4-12 parts of organic potassium acid. The technical threshold of application of the humic acid fertilizer is reduced, fertilization mode is simplified, and safety and convenience in agricultural production are both guaranteed. With synergistic effect of the humic acid fertilizer composition, growth of plant roots is improved, content of vitamin C and soluble sugar is increased, yield and quality of plants are both increased, and yield increasing effect keeps stable.

The invention provides a repair method for semi-soil and semi-matrix cultivating soil. The method comprises the following steps: filling the lower part of a cultivating groove with nutritional soil; filling the upper part with a matrix; adding a disinfectant into the cultivating groove uniformly; adding a film to cover the cultivating groove for 7-10 days; uncovering the film to ventilate; detecting residues by means of a germination test; adding a soil reducer and the like to prepare the semi-soil and semi-matrix cultivating soil. The method can repair the matrix effectively, optimizes the physical and chemical characteristics of the matrix, balances nutrients in the matrix and solves the problems of secondary salinization and massive accumulation of soil-borne pathogenic bacteria and thelike. The method can reduce the incidence rate of the soil-borne diseases effectively and promote growth of plants positively.

The invention discloses a method for processing minor grains by adopting a nano technology and application of the method. The method comprises the following steps: farmyard manure applied according toa usage amount of 500-1600 kg / mu is adopted as a base fertilizer; corn, wheat, rice, cotton, watermelons and muskmelons are used as minor grains; the row spacing of the corn, the wheat, the rice, thecotton, the watermelons and the muskmelons is 30 cm; and the sowing depth of the corn, the wheat, the rice, the cotton, the watermelons and the muskmelons is 5 cm. According to the method for processing the minor grains by adopting the nano technology and application of the method, grains are subjected to electromagnetic radiation, excitation of an electromagnetic field, and bombardment of negatively charged particles, an enzyme is added for softening, soluble sugar and soluble proteins are increased, and gene expression is promoted. The technology is a physical and chemical comprehensive agricultural technology, causes no chemical pollution, is suitable for various crops, and has the characteristics of improving seed vitality and crop resistance; and seed disinfection is realized, crop growth is promoted, crop yields are improved, and quality is improved.

The invention provides a microbial agent including ensifer adhaerens, acinetobacter calcoaceticus and flavobacterium chungangense. The invention also provides a compound fertilizer including the microbial agent, humic acid and an inorganic fertilizer, wherein the number of the microbial agent is 1-500000000 / g, and the mass ratio of humic acid to the inorganic fertilizer is 7:3. The inorganic fertilizer contains three elements of nitrogen, phosphorus and potassium, and the ratio of N, P2O5 and K2O is 8:30:4. The microbial compound fertilizer is rich in nutrition and comprehensive in functions, and can significantly improve the yield and quality of cucumber. Compared with a common chemical fertilizer, under a condition of the same amount of input, the microbial compound fertilizer can allows the yield to be increased by 10-60% and the soluble sugar to be increased by 10-20%.

The invention discloses a muskmelon seedling growing substrate, and belongs to the technical field of seedling growing substrates. The muskmelon seedling growing substrate is prepared from thoroughly-decomposed maize straw, thoroughly-decomposed chicken dung, turfy soil, vermiculite, antagonistic actinomycetes and chitosan, and the mass ratio of thoroughly-decomposed maize straw to thoroughly-decomposed chicken dung to turfy soil, vermiculite to antagonistic actinomycetes to chitosan is 1:(0.08-0.12):(0.8-1.2):(0.8-1.2):(0.04-0.06):(0.06-0.1). According to the muskmelon seedling growing substrate, the substrate contains antagonistic actinomycetes, the antagonistic actinomycetes has the good colonization capability in rhizosphere soil, the good inhibiting effect is achieved for greenhouse soil-borne diseases, and the continuous cropping obstacle can be effectively repaired; the PPO activity of muskmelon seedling stage leaves and roots is improved, and the muskmelon plant disease resistance is improved; the substrate is a compound substrate, the substrate is loose and good in water binding capacity, the total-P, total-K, quick-acting N, quick-acting P and quick-acting K contents arehigh, the fruit quality can be improved, and the fruit yield can be increased.

A water-soluble fertilizer for purple leaf lettuce is characterized by being composed of the following components in parts by mass: 13 parts of urea, 18 parts of diammonium phosphate, 40-50 parts of potassium sulfate, 83 parts of calcium nitrate, 25 parts of magnesium sulfate, 0.2 part of zinc sulfate, 0.02 part of copper sulfate, 1 part of ammonium ferric ethylenediamine tetraacetate, 0.3 part ofboric acid, 0.02 part of manganese chloride and 0.1 part of molybdic acid. The water-soluble fertilizer provides sufficient nutrition for the purple leaf lettuce, has stable fertility, and can guarantee nutrients for the whole process of the purple leaf lettuce planting. Compared with the conventional control, the yield is increased by 53%, the content of vitamin C is increased by 10%, the content of soluble sugar is increased by 13%, the content of anthocyanin is increased by 20%, and the content of nitrate is decreased by 20%. The yield and the quality of the purple leaf lettuce are greatlyimproved.

The invention discloses a reduction phyllostachys praecox forest fertilization method, and belongs to the technical field of plant nutrition management. The method is characterized by comprising the following steps that 1), a phyllostachys praecox forest high-yield stand structure is constructed, the density of standing bamboos is 15000-18000 plants / hm<2>, the diameter at breast height of the standing bamboos is 3-5 cm, and the number ratio of one-year-old standing bamboos to two-year-old standing bamboos to three-year-old standing bamboos is 4: 4: 2; 2), plant hole fertilizing is carried out, fan-ring-shaped grooves are formed at the position, being outward by 10 cm, of base parts of two-year-old phyllostachys praecox, and compound fertilizer is applied; and 3), after fertilizer is evenly applied, soil covering and compaction are carried out. According to the method, the use amount of the fertilizer can be reduced by 30-40%, the utilization rate of the fertilizer is increased to 50% from about 35%, and the quality of the bamboo shoots is improved.

The invention belongs to plant cultivation methods and particularly relates to a method for interplanting hericium erinaceus in a pear orchard. The method comprises the steps of woodland cleaning, mushroom stick production, under-forest seeding, management and harvesting. By interplanting of hericium erinaceus in the pear orchard, by combination with suitable mushroom sticks and by using mixed solution to treat the land and maintain the humidity of the growth of hericium erinaceus, the content of microorganisms in soil increases, the number of soil microorganisms and bacteria is the most, organic matter in the soil is added, the soil fertility is increased, the weight of pears obtained by culture is added, the average weight of a single fruit is as high as 338.4 g, the yield increase of hericium erinaceus is also achieved, the conversion rate is as high as 94.3%, the high quality mushroom proportion is as high as 96.3%, and the yield per square meter is as high as 368. 1 yuan.

The invention discloses a processing method of high-brightness black tea. The processing method comprises the following steps: (1) selecting a tea tree variety of medium and small leaflet varieties suitable for preparing black tea as a raw material; (2) picking and preparing fresh leaves of the tea trees of the medium and small leaflet varieties suitable for preparing the black tea from the last ten-day period of March to the first ten-day period of May or from the first ten-day period of August to the last ten-day period of September; (3) withering the fresh leaves in a continuous withering system to obtain withered leaves; (4) performing variable-frequency short-time low-pressure cold rolling to obtain rolled leaves; (5) performing low-temperature, high-humidity and short-time dynamic fermentation to obtain fermented leaves; (6) carrying out medium-temperature short-time color fixing operation to obtain microwave color fixing leaves; (7) carrying out thin-spreading short-time primarydrying operation to obtain primary dried leaves; (8) conveying the primarily dried leaves treated in the step (7) to a spreading and cooling room by using a conveying belt, and removing broken leavesand yellow leaves by using a winnowing machine to obtain spread and cooled leaves; (9) carrying out low-temperature medium-humidity sufficient baking operation to obtain a tea sample; and (10) performing temperature-controlled humidity-controlled far-infrared fragrance enhancing treatment on the tea sample obtained in the step (9) to obtain the high-brightness black tea.

The invention discloses a chemical regulation method for increasing the quality and resistance of sandalwood seedlings and belongs to the field of plant growth regulation. The chemical regulation method includes: selecting and preparing a growth regulation agent, isolating host plants, applying the growth regulation agent, performing seedling management and the like. The chemical regulation methodhas the advantages that the ground diameter and canopy growth of the sandalwood seedlings can be promoted evidently, biomass accumulation is increased, seedling quality indexes (QI) are increased, the synthesizing of leaf photosynthetic pigment is promoted, the content of soluble sugar and soluble protein in leaves is increased, the net photosynthetic rate of the leaves is enhanced, the activityof antioxidant enzymes (catalase, peroxidase and superoxide dismutase) is increased evidently, membrane lipid peroxidation is reduced, stress resistance is enhanced, and economic benefits are increased to the maximum degree; the method is simple to operate, quick in action, practicable and the like.

The invention discloses a foliage fertilizer special for banana and a preparation method thereof, and relates to the technical field of fertilizers. The foliage fertilizer is prepared from the following raw materials: potassium nitrate, ammonium phosphate, zinc sulfate, magnesium sulfate, ferrous sulfate, humic acid, orthoboric acid, vitamin B, tea polyphenol, Tween, an equisetum ramosissimum extracting solution and pineapple residue fermentation liquor. The foliage fertilizer provided by the invention can improve cold resistance of banana, prevent banana leaves from withering and plants from dying under low-temperature stress, the chilling damage loss is effectively reduced, the economic benefit is increased, the damaged tissues and various physiological functions of banana after cold wave can recover quickly, and the yield is increased.

The invention provides a bioactive preparation. The bioactive preparation is prepared from the following components in parts by mass: 20 to 30 parts of biochar, 40 to 50 parts of medical stone, 10 to20 parts of humate and 5 to 10 parts of polyacrylamide. The preparation method of the bioactive preparation comprises the following steps: carrying out anoxic pyrolysis on household garbage in a pyrolysis furnace at 300-600 DEG C for 1-2 hours, crushing the obtained biochar, medical stone, humate and polyacrylamide to 200 meshes, uniformly mixing according to a ratio, adding 15-20% of water, and carrying out extrusion granulation to obtain the bioactive preparation. The bioactive preparation provided by the invention can reduce the heavy metal Cr (VI) water-soluble state, exchangeable state and carbonate binding state of calcareous soil, can increase the organic binding state and residue state, and promote the conversion of the heavy metal Cr (VI) from an effective state to a slow / delayedstate. Meanwhile, the granular structure is easy to use; compared with the prior art, the adsorbing and fixing effect on Cr (VI) is remarkable, and good application and popularization prospects are achieved.

The invention discloses a tea flower and black tea beverage and a preparation method thereof. The tea flower and black tea beverage is characterized in that every 100 parts of the beverage is made from the following raw materials in parts by weight: 2-4 parts of tea flowers, 4-6 parts of black tea, 0.015-0.03 part of sodium D-erythorbate, 0.05-0.1 part of sodium bicarbonate and the balance water. The preparation method mainly comprises the two steps of making a tea concentrate and making the tea beverage. The reasonable preparation method is adopted, so that the original taste of tea is maintained; and the tea flowers are added to the tea beverage, so that the soluble sugar content of the tea beverage is increased, and besides, the fragrance of the tea beverage is enhanced.

The invention discloses a nitration-inhibiting slow-release compound fertilizer for dual purposes of basal application and topdressing. Components of the compound fertilizer comprise dicyandiamide, urea, potassium sulfate, ammonium Polyphosphate and an auxiliary material, wherein the dicyandiamide accounts for 2.2-3.7% of a total weight of the compound fertilizer, a weight proportion of nitrogen,phosphorus and potassium nutrients is (15-25):(6-10):(18-26), and calculated by a weight percentage, total content of the nitrogen-phosphorus-potassium nutrients is not lower than 40% of the total weight of the compound fertilizer. The compound fertilizer is capable of delaying conversion from ammoniacal nitrogen in soil to nitric nitrogen through using combined application of a nitrification inhibitor and a nitrogen fertilizer, remarkably reducing loss of farmland nitrogen, and effectively improving vegetable yield and quality, and has an ecological protection value.

The invention discloses a special cold-resistant foliage fertilizer for bananas and a preparation method thereof, and relates to the technical field of fertilizers. The foliage fertilizer comprises the following raw materials: potassium nitrate, magnesium sulfate, ammonium phosphate, zinc sulfate, manganese sulfate, cysteine, vitamins, ferrous chloride, copper sulfate, salicylic acid, methyl jasmonic acid, fucoidan in laminaria japonica, soy isoflavone, chlorogenic acid, schisandrin, polydimethyl siloxane and soybean lecithin. The foliar fertilizer of the invention can improve cold resistance of bananas, prevent banana leaves from being withered or plants from dying under low-temperature stress, effectively reduces cold damage and improves the economic benefit. After the cold wave, damaged banana tissues and various physiological functions after the cold wave are restored quickly, and yield is raised.

The invention discloses a processing method for high-aroma annular-hook-shaped green tea and belongs to the field of green tea processing methods. The processing method for the high-aroma annular-hook-shaped green tea comprises the following steps that A, fresh leaves are tedded; B, fixation is conducted; C, fresh breezing and spreading for cooling are conducted; D, stacking and easing-back are conducted; E, original kneading is conducted; F, deblocking is conducted; G, rolling is conducted for the first time, specifically, rolling is conducted for the first time through a fixation machine at the temperature of 110-120 DEG C, and after a few minutes, when the green tea is rolled until the tea leaves have a slight hand prickling feeling, rolling can be finished; H, stacking and aroma storing are conducted, specifically, the green tea is stacked into multiple small piles with the thickness being 10+ / -1 cm, and a heat dissipation hole is poked in the center of each small pile; I, kneading is conducted again; J, deblocking is conducted again; K, second-time rolling, aroma raising and strip tightening are conducted, specifically, rolling is conducted for the second time at the temperature of 100-110 DEG C, when the tea leaves are in a ninety percent drying state, the temperature is increased to 280 DEG C-285 DEG C, aroma raising and strip tightening are carried out, tea strips pass through a roller twice rapidly, then the temperature is decreased to 80 DEG C, and rolling is continued until full drying is achieved; L, spreading for cooling is conducted; and M, aroma raising is conducted. According to the processing method, the high-aroma annular-hook-shaped green tea with tea strips curved like hooks and aroma spreading high can be produced.

The invention reLates to the fieLd of tea tree pLanting, in particuLar to a tea tree pLanting method. The pLanting method comprises the foLLowing steps of 1, Land seLection and preparation; 2, fruit tree interpLanting; 3, tea tree pLanting. According to the interpLanting mode, on the one hand, tea tree nutrient substances are not robbed, so that tea tree growth is not affected; on the other hand,resources are fuLLy utiLized, the benefit of a tea garden is increased, the tea garden organism diversity is enriched, the ecoLogicaL baLance of the tea garden is improved, and then disease and pest damage in the tea garden is reLieved.

The invention discloses a microelement seed soaking agent for potatoes, which includes the following components, by weight, 80mg to 120mg of Na2Fe-EDTA (ethylene diamine tetraacetic acid, 15mg to 25mg of MnSO4 7H2O, 0.6mg to 1mg of ZnSO4 7H20, 1mg to 5mg of Na2B4O7 10H2O, 0.01mg to 0.03mg of CuSO4 5H2O, 1mg to 5mg of Na2Mo4O7 2H2O and the balance water. The microelement seed soaking agent is rich in microelements, has effect for accelerating growth of seed potatoes and can improve activity of amylase, increase content of soluble sugar and cane sugar, boost decomposition of amylum and sprouting, growth and thickening of buds and improve budding. Further, the microelement seed soaking agent has the advantages that within 5 to 25 days after sprout of the seedlings, plant height of seedlings is increased and stems thereof are thickened, the content of chlorophyll in the seedlings and sound seedling index are increased, root activity is enhanced, accumulation of dry matters of the overground part and the underground part of the seedlings is accelerated, yield is improved, quality and character of the potatoes are improved.

The present invention discloses a tea flower and white tea drink and a preparation method thereof. Every 100 parts of the tea flower and white tea drink is characterized by consisting of the following raw materials in parts by weight: 2-4 parts of tea flowers, 4-6 parts of white tea, 0.015-0.03 part of sodium D-isoascorbate, 0.05-0.1 part of sodium bicarbonate and the balance water. The drink is prepared by the two main steps of tea concentrate preparing and tea drink preparing. The reasonable preparation method is used to maintain the original taste of the tea. The tea flowers are introduced in the tea drink, the soluble sugar in the tea drink is increased, and at the same time the aroma of the tea drink is increased. At the same time, the scientific method is used to maintain the original flavor of the tea drink.

The invention relates to a fertilizer, in particular to a biological fertilizer for promoting the pomegranate growth. The biological fertilizer comprises the following raw materials in parts by weight: 20-30 parts of earthworm casts, 16-23 parts of ammonium nitrate, 15-25 parts of sodium dihydrogen phosphate, 15-23 parts of coconut shells, 11-16 parts of wheat gluten, 10-22 parts of corncob comminuted substances, 10-25 parts of oil residues, 8-16 parts of mushroom wastes, 9-17 parts of calcium sulfate, 5-14 parts of itaconic acid, 5-9 parts of rare earth, 1.5-3 parts of pig blood hydrolysate and 1-5 parts of vinegar residues. The biological fertilizer provided by the invention can effectively promote the pomegranate growth and simultaneously improves the pomegranate quality.

The invention relates to the technical field of pesticides, in particular to a sugarcane cold-resistant composition. The sugarcane cold-resistant composition is prepared from the effective constituents of salicylic acid and ethylene with the mass ratio of (5-30):1. The sugarcane cold-resistant composition is sprayed before sugarcane is subjected to low temperature stress, the content of chlorophyll in the sugarcane can be increased, the number of green leaves is kept to be normal, and the content of soluble sugar and soluble protein is increased, the increase of the content of the biochemicalsubstances can improve the concentration of the cell sap, the water holding capacity of the cells is enhanced, and the freezing point is reduced; the over oxidation degree of the cytomembrane can alsobe reduced, so that the sugarcane leaf cytomembrane structure is stable, thereby improving the cold resistance of the body and facilitating the resistance to low temperature and disasters of the sugarcane.

The invention relates to the technical field of flue-cured tobacco seedlings, in particular to a flue-cured small strong seedling culture method. The method includes the following steps of sowing flue-cured seeds in a seedling bed to be cultured, adjusting the initial nitrogen concentration of a seedling bed nutrient solution to be 150-200 mg / kg when seedlings emerge, and spraying paclobutrazol onleaf surfaces in the culture process. In combination with other flue-cured floating seedling breeding technologies, the cultured flue-cured seedlings have a true green leaf color, the straw height of3-5 cm and the root dry weight larger than or equal to 0.04 gram per plant, and compared with a conventional seedling breeding mode at the same period, root vitality is improved by 4.85% or above, the net photosynthetic rate of a third visible leaf downward from the top is increased by 17.44% or above, the planting survival rate is increased by 3.16% or above, and the seedling recovery time is shortened by 48 h after transplanting.

The invention discloses an in-situ enrichment method for nematodes in soil. The method comprises the following steps: (1) weighing red soil from a test plot, adding agricultural organic wastes and a microbial agent, fully and uniformly mixing the materials, and carrying out adaptive culture on the nematodes in a natural field environment to obtain the nematodes preserved in an adaptive culture medium; wherein the nematodes are bacterial-feeding nematodes; (2) backfilling the culture medium rich in the bacterial-feeding nematodes into the soil of the test plot; and (3) performing field management on the soil of the test plot, and maintaining the soil moisture to be stable. According to the method, the in-situ growth environment of the nematodes is improved, and the reproductive capacity and the yield of the protorhabditis nematodes are improved; on the basis of a biological introduction long-term positioning test of the Yingtan Red Soil Ecological Experiment Station of Chinese Academy of Sciences, the total number of the soil nematodes in red soil and the number of the protorhabditis nematodes are increased; and field trials show that the red soil alkaline, activity of acid phosphatase and the content of available phosphorus are remarkably increased by adding the protorhabditis nematodes, and the growth condition and quality of corn are improved.