96 results about "Premature senescence" patented technology

A comprehensive dietary supplement of bioavailable minerals, vitamins, phytonutrients, herbs, antioxidants, and enzymes for ameliorating the effects of stress and premature aging, for enhancing natural cellular rejuvenation and regeneration, and for fortifying the immune system of a warm-blooded animal or human, comprises, in parts by weight (a) about 100–500×10−3 of a blend of vitamins, (b) about 200–800×10−3 of blend of minerals wherein said minerals are present as amino acid chelates formed from an amino acid ligand and said minerals, wherein the mole ratio of amino acid ligand to mineral in said chelate is at least 1:1, (c) about 250–750×10−3 of a blend of phytonutrients, (d) about 50–500×10−3 of a blend of herbs, and (e) about 30–500×10−3 of a blend of enzymes.

The invention discloses a biological salt-degrading bacterial fertilizer consisting of the following components by weight proportion: 0.0013 to 0.0045 portions of gibberellin, 0.00002 to 0.0002 portions of cytokinins, 15 to 35 portions of bacillus megaterium, 50 to 80 portions of salt-degrading flora, 5 to 15 portions of amino acid and 2 to 10 portions of humic acid. The materials are evenly mixed and air dried. The bacterial fertilizer is formed by being extracted from marine microorganisms, rejuvenation, expanding propagation and being remixed with a plurality of trace elements. The bacterial fertilizer is scientific in formulation and very strong in activity, can be widely applied to salt lick improvement and a secondary salinization treatment, improves and optimizes soil environment and improves the deteriorated soil environment caused by the long-term use of chemical fertilizers and salt containing organic fertilizers (dungs). The bacterial fertilizer can facilitate the development of the roots of crops and can improve the ability of absorbing night soil. By applying the biological salt-degrading bacterial fertilizer, the fertilizer can facilitate the even seedling, uniform seedling and strong seedling at the earlier stage of crops, the strong nutrient transmission capacity at the middle stage and no premature senescence at the later stage.

A diagnostic plot derived from the measurement of 82 assays which characterize two key parameters which significantly contribute to an individual's health status. These two parameters are oxidative stress profile (OSP) and antioxidant profile. Each of the assays which constitute the 82 assays are complimentary with other assays of the profile, thus providing either confirmation information or the synthesis of new information. The diagnostic plot, developed to interpret the assay data which provides information about oxidative damage and antioxidant protection, consists of four quadrants, each with noticeable characteristics. By visually assessing the position of a patient's OSP status, in comparison to reference OSP values in the four quadrants constituting the diagnostic plot, physicians and other health care professionals can provide sound advice to their patients regarding dietary and life style changes one need to adhere for prevention of oxidative stress-related diseases as well as postponing premature aging processes.

The present invention provides stem cell feeder layer cell lines that contain are readily triggered to differentiation. The expression vector encodes the senescence-triggering factors (STFs) consisting of Cip / Kip, INK4A, Cy protein or ankyrin-binding protein motifs. Each expression vector also contains an inducible transcription regulation element for conditional expression of the STFs.

The manufacture and use of compounds of formula (Ia) or a pharmaceutically acceptable salt thereof for preventing, inhibiting or treating cancer, AIDS and / or premature aging. The compounds of formula (Ia) being:where:R independently represents a hydrogen atom, a halogen atom, a (C1-C3)alkyl group, a —CN group, a hydroxyl group, a —COOR1 group, a (C1-C3)fluoroalkyl group, a —NO2 group, a —NR1R2 group, or a (C1-C3)alkoxy group;R′ is a hydrogen atom, a halogen atom, a (C1-C3)alkyl group, a —NO2 group, a (C1-C3)alkoxy group, or a —NR1R2 group; andR1 and R2 are a hydrogen atom or a (C1-C3) alkyl group.

The invention discloses a soluble silicon fertilizer, which is prepared by the following raw materials by weight: 10-90 parts of potassium metasilicate; 10-90 parts of monopotassium phosphate; 2 parts of boron sulfate and 2 parts of zinc sulfate. The soluble silicon fertilizer which is prepared by the raw materials based on part by weight, the solubility is good, the absorption utilization rate is high, and the effects of increasing both production and income, lodging resistance, diseases and insect pests resistance and premature senescence resistance are remarkable, besides, the fertilizer contains various nutritional ingredients which are required by crop growth and is convenient to widely popularize and apply, and the pollution for the earth can be reduced.

The invention provides an acidic soil conditioner, a preparation method and application thereof. The acidic soil conditioner is formed by compounding of industrial waste, mineral raw materials and anSE functional material in certain proportion. The SE functional material comprises a glucoamylase treatment substance and amino acid biochar, as well as one or more of alginic acid, polyaspartic acid,polyglutamic acid and potassium fulvate. The acidic soil conditioner provided by the invention can effectively adjust the soil pH value, neutralize free acid, passivate activated aluminum, and solvethe problems of "acidity and toxicity" of soil; being rich in humic acid and organic matters, the acidic soil conditioner can effectively improve soil, restore the granular structure, increase the content of organic matters, and improve the water retention, fertility increasing and breathability of soil; the acidic soil conditioner can improve the rhizosphere soil microenvironment, enhance root activity, and promote nutrient uptake and utilization, also can improve the crop stress resistance and effectively prevent crop premature senescence, thus being a conditioner having the efficacy of improving soil and promoting crop growth.

The grafting cultivation of cucumbers has the advantages of improving the soil-borne disease resistant capacity of plants, enhancing the cold resistance of the plants, overcoming continuous cropping obstacles, improving yield and the like, and has a great significance for the cultivation of protected areas of cucumber facilities. The invention provides a method for cultivating strong root systems of grafted cucumbers. In the method, field planting is performed after roots of rootstocks of the grafted cucumbers are cut off, and the rootstocks are induced to generate new strong root systems while grafting union, so in the production, rejuvenation is quick after the field planting, the low-temperature resistance performance and early-stage growth potential of seedlings are high obviously, the seedlings are resistant to premature senescence in the later stage, the rate of fruit setting is greater than that of the conventional seedlings, and the weight of a single cucumber is heavy. Contrast tests indicate that compared with the conventional graft seedlings, the fruit bearing peak period of the grafted cucumber seedlings subjected to root-cut cultivation is prolonged by 3 to 5 days, so the yield is improved by over 5 percent.

The invention provides a cotton root regrowth-type growth promoter and a preparation method thereof. The promoter is prepared from following main components: a rooting conditioning agent, a cell excipient and gibberellin with the aid of a water-retaining agent, an adhesive, high-concentration ethanol, tap water and dry sand. The rooting conditioning agent is one or more selected from sodium naphthalene-1-acetate and sodium 3-indolebutyrate. The cell excipient is one or more selected from sodium nitrophenolate and potassium nitrophenolate. The promoter is capable of regaining cotton root activity, promoting root regrowth, promoting extension of newborn root, increasing the fertilizer utilization rate, promoting growth of the overground part, preventing premature senescence and increasing the output.

The invention relates to a method for constructing a soil ploughing layer of a south-Xinjiang oasis drop-irrigation continuous-cropping middle-low-yield cotton field. The method includes the steps that before sowing in the cotton field, straw of last crops is smashed and returned to the field; farmyard manure and chemical fertilizer are applied; deep ploughing, cotton field flattening and super-deep scarification are conducted; irrigation is conducted before sowing; sowing is conducted; furrows are dug in the cotton field, and anti-salt plants are planted; a windbreak tree belt is built on the periphery of the cotton field; a water-irrigation and drainage trench system is built; field management is conducted. After the method is adopted, the surveying result shows that the soil water content in the seedling stage is increased by 0.5%, rapidly-available potassium of the ploughing layer is increased by 35.2%, the temperature of soil 5 cm lower than films is increased by 0.6 DEG C, the thickness of the ploughing layer in the seedling period is increased by 7.1 cm, the salt content of soil is reduced by 2.1 g / kg, the soil porosity is increased by 8.5%, the soil penetration resistance (PSI) is reduced by 130, the soil bulk density is reduced by 0.11 g / cm<3>, the pH value of soil is reduced by 0.4, the residual film content of soil of the ploughing layer is reduced by 11.3 kg per mu, premature senescence of the cotton field is avoided, the yield of seed cotton is increased by 57.5 kg per mu, and therefore the method has the soil-improving and yield-increasing effects and can meet production requirements.

The application discloses a composite nutrient solution for adjusting the growth of crops, a preparation method and an application thereof. The composite nutrient solution comprises the following main active components in parts by weight: 0.05-5 parts of kinetin, 0.05-5 parts of 6-benayl aminopurine, 0.05-5 parts of zeatin, 0.01-1 part of diethyl aminoethyl hexanoate and 0.001-0.1 part of brassinolide. The composite nutrient solution disclosed by the application is used for the reproductive growth stage of the crops and can be used for carrying out high-efficiency adjustment on the crops; the composite nutrient solution has the beneficial effects that not only can the set flowers and set fruits be increased and can the effective pollination be improved, but also the stress resistance can be effectively improved, the premature senescence of the crops can be prevented and finally the purpose of increasing the yield of the crops is achieved. The composite nutrient solution has the advantages that the functions are diversified, the use efficiency is high and the use cost is effectively reduced.

The invention discloses application of rice genes OsVHA1 in delaying senility of plant leaves and improving plant salt tolerance. A nucleotide sequence of the rice genes OsVHA1 is shown in SEQ ID NO.1; the application comprises the processes that the rice genes OsVHA1 are joined with an expression carrier to construct and obtain a recombinant expression carrier; the recombinant expression carrier is converted into a receiver plant. Base on a tula cloning technology, the cloning from a rice premature senescence mutant osvha1 is carried out to obtain genes OsVHA1; a functional complementary experiment proves that the genes OsVHA1 can delay the senility of plant leaves while a salt processing experiment proves that the genes OsVHA1 can improve the salt tolerance capability of the plant; the genes OsVHA1 can be applied to the field of plant breeding and are significant in screening and selective breeding of plant varieties with senescence resistance and salt tolerance.

The invention relates to a special biological slow-release compound fertilizer for cotton and a preparation method thereof. The special biological slow-release compound fertilizer for cotton is prepared from the following raw materials: 280-310 parts of urea, 300-350 parts of potassium chloride, 150-200 parts of monoammonium phosphate, 70-120 parts of biological humic acid, 10-15 parts of chelation medium and trace elements, 30-50 parts of double superphosphate, 4-10 parts of sodium borate, 15-75 parts of nano carbon and 0.2-0.5 part of an auxiliary slow-release agent which is polyvinyl alcohol or urea formaldehyde and is selectively used according to different areas. The invention also relates to a preparation method of the compound fertilizer. The special biological slow-release compound fertilizer for the cotton is complete in nutrients; nitrogen and potassium nutrients have slow-release properties; the compound fertilizer can conform to the nutrient absorption law of the cotton, has effects of promoting and regulating growth of the cotton, and is capable of improving cotton yield and fiber quality and effectively reducing occurrence rates of cotton premature senescence and greensickness; the cotton planting benefit is increased; meanwhile, the utilization rate of the slow-release fertilizer is increased.

The invention relates to a machine-transplanted rice cultivation method, in particular to a machine-transplanted rice cultivation method with the balanced fertilization function. According to the machine-transplanted rice cultivation method with the balanced fertilization function, a nitrogenous fertilizer application method with the process of promotion in the early period, control in the middle period and stabilization in the later period is applied, the application amount of tillering fertilizer is reduced, the ratio of the tillering fertilizer accounting for the total nitrogen application rate is controlled to be about 5%, the requirement that early tillering in the early period of machine-transplanted rice seedlings happens, and high-yield groups are formed early is met, the number of the groups in the middle period is effectively controlled, effective tillering and ear bearing are promoted, the maximum leaf area index ranges from 7.5 to 8.0, the effective leaf area in the later period decreases slowly, premature senescence of the groups is effectively avoided, and the yield structure of rice is optimized. Compared with an existing machine-transplanted seedlings, the seedling age is controlled to be about 18d through the technology, the seedling height is controlled to range from 13 cm to 18 cm, the leaf age is controlled to range from 3.2 to 4.0, the prolonged time of the seedling age is smaller than or equal to 25d, and the leaf age is smaller than or equal to 4.2. Compared with the prior art, after the technology is applied, the seedlings are orderly, the difference between plant individuals is small, vain growth does not happen, yellowing does not happen, and growth is exuberant.

The invention discloses a method for planting water chestnuts. The method includes seedling growing, land preparation and fertilizer application, colonization, field irrigation, inter-cultivation and weeding, additional fertilizer application and harvesting. The method for planting the water chestnuts has the advantages that natural plant extract liquid is applied, and accordingly pollution residues in soil can be adsorbed and removed without destroying soil matrixes; basic fertilizers and synergistic granulated fertilizers are supplied according to growth rules of the water chestnuts, accordingly, physiological requirements of crops can be met, premature senescence can be reduced, accumulation of dry matters, particularly, accumulation of dry matters in later periods, can be promoted, the root activity of the crops can be improved, nutrient absorption can be promoted, the nutrient utilization efficiency can be improved, and the method is favorable for forming high-yield population; the purposes of high quality and high yield of the water chestnuts can be achieved by the aid of optimized management technologies and appropriate water, fertilizer and temperature control.

The invention discloses an annual double-season planting method for lotus roots in a paddy field. The annual double-season planting method for the lotus roots in the paddy field comprises the following steps: seed selection, soil preparation and fertilizer application, planting of lotus roots in the spring, topdressing, water layer management in the spring, harvesting of the lotus roots in the spring and planting of lotus roots in the summer, water layer management in the summer, pest control, and harvesting of the lotus roots in the summer. According to the annual double-season planting method for the lotus roots in the paddy field, through natural plant extract liquid, pollution residue in soil can be adsorbed and removed under the condition that the matrix of the soil is not damaged, base fertilizers and synergistic grain fertilizers are provided according to the growth rhythm of the lotus roots to meet physiological needs of crops, premature senescence is reduced, accumulation of dry matters, particularly dry matters in the later stage, is promoted, root activity of the crops is increased, absorption to nutrients is promoted, the utilization efficiency of the nutrients is improved, a high-yield group can be formed, and meanwhile, by an optimized management technology and suitable water, fertilizer and temperature control, the purpose of high quality and high yield of double-season lotus roots is achieved.

Provided is a method for improving the yield of vitamin B12 based on regulation of an ammonia nitrogen index. In the fermentation process of vitamin B12, stage-by-stage batch feeding is carried out; in the earlier stage of fermentation, a yeast extract juice is refilled, so a certain content of ammonia nitrogen is maintained at a certain stage, so as to ensure the nitrogen source needed for growthand metabolism of bacteria. The stage-by-stage batch feeding is carried out in the fermentation process, the yeast extract juice is refilled in the earlier stage of fermentation, the concentration ofammonia nitrogen is controlled, the contradiction between the growth of the bacteria and biosynthesis of high-concentration ammonia nitrogen in the fermentation of vitamin B12 is solved, the nutritional components required for the growth and metabolism of the bacteria are ensured in the early stage of fermentation, the growth of bacteria is promoted, the phenomena of premature senescence and metabolic stagnation in the later period are avoided, and the fermentation unit of vitamin B12 is increased.

The invention relates to a fertilization method for preventing and controlling premature senescence of honey peach trees, the fertilization method comprises the following steps: 1, before leaves of the honey peach trees are fallen, a biological bacterial fertilizer, a compound fertilizer, calcium superphosphate and No. 1 microbial bacterial liquid are applied to roots; 2, before germination stage,No. 2 microbial bacterial liquid is applied to the roots; 3, before flowering, urea and a boron fertilizer are applied to the roots; 4, during fruit setting stage, No. 1 water soluble fertilizer andNo. 3 microbial bacterial solution are applied to the roots, and foliar fertilizer 1 is sprayed simultaneously; 5, in fruit swelling stage, water-soluble fertilizer 2 is applied to the roots; and 6, in fruit color turning stage, microbial bacterial solution 4 is applied to the roots, and foliar fertilizer 2 is sprayed simultaneously. The fertilization method can comprehensively delay the prematuresenescence of the peach trees from the aspects of improving soil of peach orchards, preventing and controlling peach tree gummosis disease, supplementing nutrients, and improving tree vigor. At the same time, the biological control of the peach tree gummosis disease and other diseases can be realized by applying microbial agents, the number of medications used throughout a year can be reduced by1-2 times, environmental pollution is reduced, and the quality and flavor of honey peaches can be improved.

The invention discloses a high-yield and high-efficiency sorghum cultivation method. By advanced covering of an arched shed and a film, the temperature of a nursery site is increased, sorghum sowing and seedling culture are advanced, sorghum growth and development progress is advanced, the growth period of first sorghum is advanced, double production is achieved in one season, and favorable temperature and light conditions are created for regenerated sorghum growth and development. Particularly, the requirement of sorghum growth for nutrition is met in terms of base charcoal fertilizer application and the like, biomass charcoal fertilizers can enhance soil carbon fixation effects, physical and chemical properties and the structure of soil can be effectively improved, soil quality and fertility are improved, the yield of sorghum crops is increased, fertilizing and watering are repeatedly performed in management to prevent premature senescence, axillary bud differentiation is promoted, early growth and quick tillering of regeneration seedlings are promoted by the aid of suitable stubble height, the density of low-position regeneration seedlings is timely determined, steady growth ofthe regeneration seedlings is promoted, and a solid foundation is laid for high yield. The cultivation method is simple, easy, high in economic benefits and worthy of popularization, and large-scale cultivation can be performed.

The method of treating delayed healing of a wound associated with diabetes includes administering to the wound a composition comprising an anti-senescence compound and a pharmaceutically acceptable carrier. The anti-senescence compound may be 18α-Glycyrrhetinic acid, a Caveolin-1 (Cav-1) inhibitory compound, or a Polymerase I Transcript Release Factor (PTRF-1) inhibitory compound. The anti-senescence compound may be effective in preventing and / or reversing premature cellular senescence. The anti-senescence compound may be effective in promoting healing of a wound, e.g., delayed or incompletely healed wound. The anti-senescence compound may be effective in promoting healing of a delayed healing wound or chronic wound of a diabetic patient, such as a diabetic ulcer or venous ulcer.

The invention belongs to the technical field of gene engineering and discloses a rice senescence control gene OsCKX11 and application thereof. An amino acid sequence of the rice leaf senescence control gene OsCKX11 and an amino acid sequence shown as SEQ ID NO.2 are homological by at least 70%. By site-directed mutagenesis of rice cytokinin oxidase coding gene OsCKX11 and mutant phenotypic changeanalysis, the fact that the gene functional deficiency results in rice leaf senescence delaying; in certain premature senescence cultivation varieties, knocking out OsCKX11 by the gene engineering technology enables purposive regulation of a plant senescence process, yield increasing is realized by regulation of a plant population development stage, and a significant application value is achieved.

The invention provides a two-stage cultivation method for rice.The method comprises the steps of soil preparation and fertilization, transplantation, water and fertilizer management, premature senescence prevention and the like.According to the two-stage cultivation method for the rice, on the basis of a two-stage cultivation technology for the rice, construction of populations is formed in the soil preparation and fertilization and transplantation processes, morphology construction is formed through water and fertilizer management and nitrogen element regulation, and function construction is formed in the premature senescence prevention process, so that the dosage of fertilizer and pesticides is reduced, the fertilizer utilization rate is increased, and meanwhile yield increasing and income increasing of the rice are achieved.

The invention discloses a dendrobium officinale traditional Chinese medicine composition with functions of maintaining beauty and keeping young and a preparation of the dendrobium officinale traditional Chinese medicine composition, and belongs to the technical field of preparation of traditional Chinese medicines. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 10-25 parts of saffron crocus, 10-25 parts of dendrobium officinale, 10-25 parts of lucid ganoderma, 8-25 parts of white atractylodes rhizome, 10-20 parts of honey-fried licorice root, 12-20 parts of peach kernel, 8-20 parts of red dates, 8-20 parts of codonopsis pilosula, 6-15 parts of mangosteen peel, 6-12 parts of wolfberry, 6-12 parts of hawthorn, 4-8 parts of blueberry and 3-6 parts of spina date seeds. The traditional Chinese medicine composition disclosed by the invention is prepared into the medicine and has the efficacies of replenishing qi, strengthening the spleen, activating blood circulation to dissipate blood stasis, enriching the blood, tonifying qi, resisting oxidation and resisting senescence, plays roles in nourishing bodies, maintaining beauty and keeping young, and has a significant curative effect on fatigue, premature senescence, wrinkles, patches and dull complexion caused by deficiency of qi and blood, deficiency of the spleen and stomach and the like.

The invention discloses a method for improving the yield of peanuts and belongs to the technical field of high-yield fertilization of peanuts. According to the technical scheme, the method for improving the yield of peanuts includes the steps that under field production conditions, whole peanut plants in the early stage of pod bearing are sprayed with exogenous NO sodium nitroprusside solution, and the other conditions are the same as those of an ordinary field production management method. The method not only can greatly improve the stress resistance of the peanut plants, but also can lower requirements for water and fertilizer planning and management in the middle and later stages of the peanuts, and therefore the method not only is favorable for preventing premature senescence of the peanuts and improving the yield of the peanuts, but also reduces peanut production cost and provides an important way for promoting peanuts and relieving cultivation.

The invention discloses high-yield high-quality sesame hybrid. The high-yield high-quality sesame hybrid is mainly characterized in that typical trematodon hybrid sesame seed is cultivated by the steps of: with selected variation single strain 2001A of yiyang white sesame as a female parent and selected D1-33 as a male parent, carrying out pure-breeding by mutation; carrying out distant hybridization; and carrying out selective breeding by a multi-year pedigree method. The single-plant hybrid sesame has a few branches, tall and strong plant, extra long capsules, short internodes, and psophocarpus capsules with the yield per unit area of 100 kilograms to 150 kilograms; the flowering stage is about 45 days and the overall growth period is about 100 days; the plant is eugenic, regular, strong, full of delayed effect, not provided with premature senescence, strong in disease-resistance, drought-resisting and strain-resisting; the seed coat is pure white; the oil yield is as high as 58%; the oil is thick and scented; the content of the crude fat is 59.2%; the content of crude protein is 26.4%. The high-yield high-quality sesame hybrid disclosed by the invention is awarded with the first prize of technological innovation by Qianjiang People's Government of Hubei Province in 2003.

The invention discloses a late-dense-simplified cotton cultivation method adopting chemical topping. The late-dense-simplified cotton cultivation method comprises the following steps of sowing in the first ten-day period of May, performing final singling at a 2-3-leaf stage, and controlling the density of reserved seedlings at 5,500 to 6,000 plants / mu; then spraying a chemical topping agent for three times: at the first time, spraying when 60 percent of plants in a cotton field reach 9 to 10 fruit branches, and spraying to tips of leaf branches and fruit branches by using a mixed liquid of mepiquat chloride and flumetralin according to the ratio of 2:1, at the second time, spraying when 60 percent of cotton plants in the cotton field reach 10 to 11 fruit branches, and spraying to top ends of cotton plant stems by using a mixed liquid of the mepiquat chloride and the flumetralin according to the ratio of 1:2; at the third time, spraying at the sixth to eighth day after second spraying, and spraying to whole plants by using a mixed liquid formed by adding the mepiquat chloride and flumetralin according to the ratio of 1:1, and 0.05 percent of urea. According to the late-dense-simplified cotton cultivation method disclosed by the invention, rotten bolls are reduced and premature senescence is alleviated by proper late sowing; density increasement and chemical topping are used to replace artificial pruning and topping, so that labor and time are saved, and net incomes are remarkably increased.

The invention discloses an artemisia selengensis water planting formula. The formula comprises the following components: calcium nitrate, potassium nitrate, monopotassium phosphate, magnesium sulfate heptahydrate, ammonium dihydrogen phosphate, boric acid, manganese sulfate, zinc sulfate, copper sulfate, ammonium molybdate and calcium chloride. The phenomenon that premature senescence easily occurs in the later stage of the growth cycle of artemisia selengensis is concerned in the formula, the content of Ca<2+> ions is increased in the formula, so that increase of anti-reverse related enzyme activity of plants can be promoted, the adversity stress resistance of artemisia selengensis can be improved, and insect attack can be effectively defensed.

The invention relates to a cultivation method capable of preventing and controlling the heat-forced maturity of flue-cured tobacco. The method comprises the combined cultivation steps that firstly, high ridging is combined with smash ridging; secondly, tobacco transplanting is conducted; thirdly, double covering is conducted; fourthly, a heat-forced maturity prevention and control agent is sprayed in the later growth period of tobacco plants, wherein the heat-forced maturity prevention and control agent comprises polyamine, sodium nitroprusside and sodium sulfite; fifthly, in the mature period, the relative water content of soil is kept to 60-80%. By means of the heat-forced maturity prevention and control method of the flue-cured tobacco, the development of root systems of the tobacco plants can be promoted, the premature senescence of the root systems is prevented, the respiration and the water desorption of leaves are fully inhibited, and a high photosynthetic rate of the tobacco leaves is maintained; meanwhile, the physiological metabolism activity and the stress resistance of the later tobacco plants are enhanced, and the chemical component coordination of the tobacco leaves is improved. According to the tobacco plants cultivated through the heat-forced maturity prevention and control method of the flue-cured tobacco, the phenomena of premature senescence, albino, burns and brown spot are mitigated obviously, the physiological indexes and the quality indexes are remarkably improved, the phenomenon of heat-forced maturity of the flue-cured tobacco can be effectively prevented and controlled, and the quality of the tobacco leaves is improved.

The invention discloses a composite conditioning agent for preventing premature senescence of corns and / or raising yield of corns. The composite conditioning agent per 1kg is composed of 200-400mg of succinic acid, 600-1200mg of choline chloride, 0.00002-0.00004mg of 1-(2-chlorine-4-pyridyl)-3-phenylurea, 15-25mg of N-tert-butyl-alpha-phenyl nitrone, and the balance being water. The composite conditioning agent can promote corn seed germination and seedling growth, can regulate and control corn root growth and development observably, can promote corn blade growth and development, can raise corn yield, and can improve corn ear characters. The ear length is increased by 0.56cm / ear averagely compared to the control group, the row grain number is increased by 1.76 grains / row averagely, the hundred-grain weight is raised by 1.83g averagely, and the average growth rate of corns is 7.30%.

The invention discloses a green bean growing technique. The green bean growing technique includes the following steps of (1), soil preparation, base fertilizer applying and ridging; (2), frame inserting, pinching and pruning, namely performing frame inserting after tendril throwing of frame beans, removing all branches below a first spike flower, pinching when a main tendril climbs to the top of a frame, and pinching after side branches pod at a later stage, where pinching of the main tendril can promote growing of the side branches, and pinching of the side branches can promote growing of green beans; (3), management, namely adhering to a principle of 'control first and promotion last' for field management to prevent steam leaves from overgrowing and premature senescence. By the green bean growing technique, labor force is greatly saved, green bean growing cost is lowered, green bean survival rate is increased, benefit of green bean growing is increased, disease resistance and pest resistance of the green beans are improved, and the objectives of high yield and excellent quality are achieved. The green bean growing technique has high popularization value.