96 results about "Premature senescence" patented technology

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.

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 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 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 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 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 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 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 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.