123 results about "Photosynthetic capacity" patented technology

Provided are isolated polypeptides which are at least 80% homologous to SEQ ID NOs: 710-1153 and 9276-15726, isolated polynucleotides which are at least 80% identical to SEQ ID NOs: 1-709 and 1157-9275, nucleic acid constructs comprising same, transgenic cells expressing same, transgenic plants expressing same and method of using same for increasing yield, abiotic stress tolerance, growth rate, biomass, vigor, oil content, photosynthetic capacity, seed yield, fiber yield, fiber quality, fiber length, and / or nitrogen use efficiency of a plant.

The invention relates to the field of planting of crops, in particular to a method for reducing content of cadmium in crops. According to the method for reducing the content of the cadmium in the crops, an organic water-soluble fertilizer prepared from plant source organic matters, humic acid, citric acid, amino acid, vitamin and monosaccharide is applied to the crops mainly in an irrigation manner; through a specific amount of organic water-soluble fertilizer applied in an irrigation manner before planting, a specific amount of organic water-soluble fertilizer applied in an irrigation manner after planting and a specific amount of leaf fertilizer applied in a spraying manner in a growing period of the crops, nutrition can be supplied for the crops while cadmium absorption of roots of the crops is reduced, photosynthetic capacity of the crops is improved, stress resistance is improved, and an effect of improving the yield of the crops is also improved effectively. The method plays an important role in guaranteeing safety of agricultural products.

The invention provides a method for culturing a vegetative shoot of rosa hybrida. The method includes: cultivating rosa hybrida cutting seeding, growing and trimming a first-class branch, enabling a second-class branch to sprout on the first-class branch trimming position, growing and trimming the second-class branch, twisting the first-class branch portion 3-4cm away from a base portion when the second-class branch is matured to damage the inside of the branch in a mode that the cortex cannot be damaged and the branch cannot be broken, enabling the twisted portion of the branch to be bent and drop naturally due to the fact that no supporting exists, performing medicine prevention on the twisted position, enabling the vegetations to grow until a sprout grows on the base portion of the first-class branch and obtaining the vegetative shoot. By means of the method for culturing the vegetative shoot of rosa hybrida, the sprouting time of rosa hybrida branches is shortened by utilizing the sprouting characteristics of the rosa hybrida branches, the problem of difficult pest management and high cost caused by multiple layering and branch overlapping can be solved, continuous photosynthetic capacity can be provided to growing of the branches, and quality and yield of the rosa hybrida can be improved.

The invention belongs to the technical field of crop breeding, specifically relates to a method for sieving high-temperature adaptive resources of paddy rice and for evaluating and authenticating high-temperature stability of photosynthetic capacity of breeding material. The invention comprises the characteristics of: adjustment for the heading stage of the material to be authenticated via seeding period, selection for natural conditions of photosynthetic rate determination, confirmation for growth period and determination time of paddy rice, setting of parameter values of artificial light and temperature, processing and analysis of data and the like. During the specific period for growth and development of the paddy rice, conditions including natural high temperature in summer and artificial light and temperature are utilized to implement definite-time and constant-temperature determination on net photosynthetic rate of paddy rice leaf, and the obtained result can relatively accurately analyze differences of photosynthesis among testing varieties of the paddy rice in high-temperature stability. The invention provides convenient and feasible evaluation indicators and methods for the selection of parent and the sieving of breeding progeny in high-temperature adaptive ecological breeding and in high photosynthetic efficiency physiological breeding.

The invention discloses a plant cytolemma regulator solution. The plant cytolemma regulator solution comprises the following effective components in parts by weight: 1-10 parts of choline chloride, 20-50 parts of amino-oligosaccharin, 10-20 parts of fulvic acid potassium, 5-10 parts of vitamin C, 15-20 parts of an amino acid stock solution, 5-10 parts of rare earth nitrate, 5-10 parts of flavescent sophora roots, 1-5 parts of citric acid, 1-6 parts of trace elements and 0.5-3 parts of sorbitol. The regulator solution disclosed by the invention can be used in the fields such as crops, fruits, vegetables and the like, has unique physiological effects, and has important effects of exploiting the normal functions of plant cells. The plant cytolemma regulator solution can activate the autologous life vitality of plants, can improve the autologous physiological activity of the plants, can excavate the autologous life potential and the productive capacity of the plants to the maximum extent, can improve the photosynthetic capacity of leaves, can improve the capacity of the plants to adapt to adverse environment, can obviously improve the cold resistance and the drought resistance of the plants, and can increase yield, so that the plant cytolemma regulator solution has better development prospects.

The invention provides a preparation method of an anti-aging, long-acting and multifunctional phosphate fertilizer. The method comprises the following steps of: (S1) mixing a mixture, which includes one or more of medium trace elements desired in the crop, with a phosphate solution so as to form a spare solution; and (S2) adding ammonia to the spare solution so as to generate ammonium phosphate double salt. The phosphate fertilizer prepared by using the preparation method of the anti-aging, long-acting and multifunctional phosphate fertilizer, which is provided by the invention, has the advantages of uneasiness for fixing the phosphate, long fertilizer action, aging resistance, multiple medium trace elements, comprehensive nutrients, speed lowering interdependence and convenience in use; the crop root development can be promoted; and the crop photosynthetic capacity can be improved.

The invention discloses a vegetable active organic calcium nutrient solution and a preparation method thereof. The nutrient solution is prepared by dissolving active components in water. The nutrient solution comprises 10-100g / L of calcium lactate, 10-40g / L of HBO3, 10-100g / L of polypeptide urea, 1-30g / L of potassium humate, 1-30g / L of agricultural amino acids and 1-10g / L of NaHSO3. The vegetable active organic calcium nutrient solution of the invention uses calcium lactate as main raw material and also contains nitrogen, phosphorus, potassium, potassium humate and various trace elements according to the plant nutrition balance principle, thus the hardness of fruit and the toughness of peel can be increased and fruit crackings, sun burns and pest / disease attacks can be reduced; by adopting the nutrient solution of the invention, the yield can be increased, the quality can be improved, the storability of fruit can be increased, the respiratory intensity of the plant leaf can be lowered, the nutrient consumption can be reduced, and the photosynthetic capacity, the stress resistance of plant and the like can be increased.

The invention provides a preparation method of a multifunctional light-conversion thin film added with rare earth and relates to the technical film of thin films. The multifunctional light-conversion thin film is composed of low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), metallocene polyethylene, a rare-earth light conversion agent, an anti-ageing agent and an antifogging agent. The preparation method is characterized by particularly comprising the following steps of: (1) mixing the LDPE, the rare-earth light conversion agent, the anti-ageing agent and the antifogging agent; carrying out drying treatment on the mixture; after drying the mixture, extruding and granulating through a granulating machine; and drying and sieving grains to obtain a master batch; (2) mixing the LDPE, the LLDPE, mLLDPE and the master batch; mixing, and extruding and carrying out film blowing through an extruding machine; drawing and winding after cooling by an air ring to obtain a finish product; and (3) checking and packaging the finished product, and storing to obtain the multifunctional light-conversion thin film added with the rare earth. The multifunctional light-conversion thin film added with the rare earth can improve the photo-thermal effectiveness, enhances the photosynthetic capacity of crops, and increases the accumulation of dry substances; the content of chlorophyll, starch and sugar in the crops is improved and the absorption capability of nitrogen is improved, the yield of the crops is increased and the quality is improved; and meanwhile, the multifunctional light-conversion thin film added with the rare earth has the properties of long service life, antifogging property and the like.

The invention relates to a method for increasing the photosynthetic capacity of drought mixed matrix lawn plants by adopting rare-earth cerium. The method comprises the step of sowing seeds of the lawn plants on a mixed culture matrix for lawn planting, wherein 200mg / Kg-800mg / Kg of rare-earth cerium is contained in 1.5-2kg of mixed culture matrix soil and the mixed culture matrix is the compost of soil and municipal solid waste in a weight part ratio of 4:(1-2). According to the method provided by the invention, a certain amount of rare-earth cerium is applied, so that the photosynthetic rate of the lawn plants can be obviously increased. The application of the technology is expected to realize a high-efficiency and low-cost operating mode in large-area urban lawn planting.

Provided are isolated polypeptides which are at least 80% homologous to SEQ ID NOs: 202-219, 221-292, 295-327, 4064-4175, 4177-4210, 4212-4580, 4582-4603, 4605-4749, 4751-4778, 4780-5223, 5225-5493, 5522-5807, 5812, 5815-5816, 5828-6679, 6689-6690, 6708-6785, 6792-6892 or 6893, isolated polynucleotides which are at least 80% identical to SEQ ID NOs: 1-91, 94-201, 328-2317, 2320-2321, 2323, 2326-3835, 3838-3840, 3842-3843, 3848, 3850-3852, 3854, 3856-3953, 3955-4061 or 4062, nucleic acid constructs comprising same, transgenic cells expressing same, transgenic plants expressing same and method of using same for increasing yield, abiotic stress tolerance, growth rate, biomass, vigor, oil content, photosynthetic capacity, seed yield, fiber yield, fiber quality, fiber length, and / or nitrogen use efficiency of a plant.

Provided are isolated polypeptides which are at least 80% homologous to SEQ ID NOs: 182-184, 186-202, 204-216, 219-223, 225, 227-232, 235-236, 238, 240-260, 262-268, 270-275, 277-287, 289-297, 3651-3671, 3686, 3720-3721, 3724, 3727, 3735, 3754, 3774, 3795-4304, 4316, 4374, 4425, 4464, 4481-4813, 4824, 4833, 4843-4844, 4867-4869, 4888, 4890-4891, 5005-5050, 5053-5070, 5093, 5217, 5231, 5233, 5239, 5246, 5255, 5257-5296, 5412, 5415-5429, 5447-5456, 5465-5673, 5675-5686, 5688-5695, 5697-5698, 5700, 5702-5707, 5709-5715, 5717-5785, 5831, 5869, 5980, 6010-6043, 6045-6053, 6055-6093, 6132, 6383, 6405, 6493, 6523, 6533-6537, and 6563-6589, isolated polynucleotides encoding same, nucleic acid constructs comprising same, transgenic cells expressing same, transgenic plants expressing same and method of using same for increasing yield, abiotic stress tolerance, growth rate, biomass, vigor, oil content, photosynthetic capacity, seed yield, fiber yield, fiber quality, fiber length, and / or nitrogen use efficiency of a plant.

Provided are isolated polypeptides which are at least 80% homologous to SEQ ID NOs: 496-794, 2898-3645, and 3647-4855, isolated polynucleotides which are at least 80% identical to SEQ ID NOs: 1-495 and 795-2897, nucleic acid constructs comprising same, transgenic cells expressing same, transgenic plants expressing same and method of using same for increasing fertilizer use efficiency, nitrogen use efficiency, yield, growth rate, biomass, vigor, oil content, photosynthetic capacity, seed yield, fiber yield, fiber quality, fiber length, and / or abiotic stress tolerance of a plant.

Provided are isolated polypeptides which are at least 80% homologous to SEQ ID NO: 474-643, 645-679, 681-755, 757-760, 4806-6390, 6395-6396, 6401-6895, 6897-7249, 7251-7685, 7687-7693, 7695-7700, 7702-7708, 7710-7796, 7798-7816, 7818, 7820-7837, 7839-7840, 7842-7861, 7863-8134, 8136-8163 or 8164, isolated polynucleotides which are at least 80% identical to SEQ ID NOs: 1-170, 172-267, 269-424, 426-473, 761-2486, 2489-2494, 2496-4803 or 4804, nucleic acid constructs comprising same, transgenic cells expressing same, transgenic plants expressing same and method of using same for increasing yield, harvest index, abiotic stress tolerance, growth rate, biomass, vigor, oil content, photosynthetic capacity, seed yield, fiber yield, fiber quality, fiber length, and / or nitrogen use efficiency of a plant.

The invention discloses a method for predicting potential photosynthetic capacity of plants based on characteristic wavelengths. The method comprises the following steps: setting culture environmentswith the same temperature, humidity and CO2 concentration under six illumination gradients, randomly selecting plant leaves as experimental samples when plants under different illumination treatmentsare different, and respectively measuring dark fluorescence parameters and visible-near infrared reflection spectra of the plant leaves as sample data; rejecting abnormal samples by adopting a Monte Carlo method, and randomly dividing a training set and a test set according to a ratio of 4: 1; extracting characteristic wavelengths by adopting a correlation coefficient method and a continuous projection method; establishing a plant potential maximum photosynthetic capability prediction model by taking the reflection spectrum corresponding to the characteristic wavelength as an input and takingthe plant potential maximum photosynthetic capability as an output and utilizing a radial basis function neural network optimized by a genetic algorithm. The potential maximum photosynthetic capacityof the plant is predicted, and a theoretical basis is provided for rapid, lossless and low-cost monitoring of the potential maximum photosynthetic capacity of the plant.

The invention belongs to the technical field of vegetable preservation, and especially discloses a method for inhibiting leaf senescence and quality decline of picked green-leaf vegetables on basis of red light irradiation. The red light signals are used for inhibiting the leaf senescence and quality decline processes in the method. The method particularly comprises the following steps: irradiating the picked green-leaf vegetables by utilizing a red LED cold-light source at a temperature condition of 10-20 DEG C for 6-10 hours per day, wherein intensity of the LED cold-light is 10-35 micromoles / m2.s; and preferably, continuously irradiating the picked green-leaf vegetables by utilizing the red LED cold-light source of which the intensity of the LED cold-light is 35 micromoles / m2.s for 8 hours per day. A novel preservation method is provided for transportation, storage and sales of a large amount of the picked green-leaf vegetables by the invention. The method is capable of very obviously slowing down reduction rates of chlorophyll, photosynthetic capacities, vitamin C and soluble proteins in the leaves of the picked green-leaf vegetables; moreover, the method is convenient to use, simple in equipment and low in energy consumption.

The invention relates to a fertilizer synergistic agent. The fertilizer synergistic agent consists of a calcium silicon fertilizer, mixed raw ore powder and an activating agent. When in use, the fertilizer synergistic agent is mixed with a nitrogen, phosphorus and potassium composite fertilizer to form a base fertilizer or an additional fertilizer so as to comprehensively provide needed nutrients for the growth and development of crops. The fertilizer synergistic agent can improve the functions of physiological activity, nutrition and metabolism of plants, promote the formation of growth hormone and adjust the activity of enzyme. The product has strong capability of adsorption, chelation and ion exchange, can enrich nutritive elements of soil and the fertilizer and is slowly released according to the requirement of the needed fertilizer of the crop, thereby improving utilization rate and effective utilization period of the fertilizer, improving bioavailability of the fertilizer, reducing use amount of the fertilizer and the times of fertilization, promoting development and activity of a root system, strengthening photosynthetic capacity and immunity of the plant, improving the capability of adverse resistance, improving comprehensive quality of the product, increasing yield, purifying soil environment and improving ecological condition.

The invention discloses a soil conditioner for improving acidification and salinization of soil. The soil conditioner is composed of biochar and vinegar lees at a mass ratio of (0.8-1.2):(0.8-1.2). The soil conditioner is added to the soil at a weight ratio of 3-5%, and can be used for improving acidified and / or salinized soil. Through the soil conditioner, the pH value of the soil can be increased, the EC value of the soil can be reduced, the urease and phosphatase activity of the soil can be improved, and the physical and chemical properties can be improved; and in addition, the photosynthetic ability of lettuce can be improved, the lettuce quality can be improved, and the lettuce yield can be increased. Above all, the soil acidification and secondary salinization hazards can be reducedthrough the method, the crop quality and yield can be increased, resources can be recycled, and environmental protection and high efficiency, cost saving and significant effects can be achieved.

Provided is a cultivation method for promoting growth of transgenic tomatoes and accumulation of astaxanthin. The cultivation method comprises the steps of taking the astaxanthin transgenic tomatoes as materials, sowing seeds of the transgenic tomatoes, transplanting seedlings growing for two months after emergency of seedlings, covering the transgenic tomato seedlings with nylon nets respectively to perform shading processing, measuring light intensity through a quantum illumination meter, performing processing respectively according to four light intensity gradients including shading 75 percent of light, shading 50 percent of light, shading 30 percent of light and performing full illumination, performing photosynthesis measurement respectively at a flowering phase and a fruit phase, harvesting the transgenic tomatoes for three times when the transgenic tomatoes are ripe, and measuring contents of the astaxanthin in the transgenic tomatoes. In the planting process, watering is performed in routine to ensure a good moisture state, cooling processing is performed through fans and wet curtains, and deinsectization and disease prevention are performed at regular intervals. According to the cultivation method, the astaxanthin transgenic tomatoes serve as cell factories to produce the astaxanthin efficiently, photosynthetic capacity of the transgenic tomatoes and astaxanthin contents in fruits are optimal under the conditions that the light intensity is 30 percent of sunlight, and the foundation is laid for establishing an artificial efficient astaxanthin-rich transgenic tomato cultivation technique system.

The invention relates to a plant furnishing method for water and soil loss prevention and control. According to the plant furnishing method for water and soil loss prevention and control, poplar nursery stocks are planted in bare land free of ground cover and having severe soil erosion, poplar trees are planted according to plant row spacing of 1.5*2 m or 2*4 m, oil sunflowers are inter-planted, ground cover is added, water and soil loss is decreased, and meanwhile economic benefit is increased; after poplar trees are 5 years old, intermediate cuttings is performed in planted land with the plant row spacing of 1.5*2 m or 2*4 m, the density is adjusted to be 3*4 m to increase ventilation and light transmission of the land, promote growing of ground portions, improve photosynthetic capacity of tree bodies, widen a root range, enhance the improvement effect of root systems to soil and play ecological and economic benefits of the trees to the maximum extent, and shallow-deep-shallow surface soil tillage is performed at a thinning stage, a final singling stage and a squaring stage respectively to decrease soil erosion caused by ploughing. By means of the plant furnishing method, the problems of poor soil property and poor ecological conditions in new reclamation areas of lli River Valley, low agricultural cultivation productivity and severe regional soil erosion are solved.

This invention is a detector for capability of the LED irradiation photosynthesis. It contains the dark room, excitation mount for visible light, detection mount for dim light,A-D converter .The setup of thr darkroom is for intravital ertrance. The excitation mount for visible light is LED mount. The detection mount for dim light contains optical fibre,electron-multiplier phototube. The fibre connects the dark room and the electron-multiplier phototube. The date handling mount is singlechip systerm. It is connected to the electron-multiplier phototube by the A-D converter as well as through the control interface. This product is light and small, it is easy to remove and can be carried easily. So it can perform as a out-door somatometer. It conquers the existing product's weakness--big inaccuracy made by used as a somatometer. The structure is simple and appropriate. It is easy to operate and is very cheap. It is do good to its extention.

The invention relates to a high-temperature drought stress resistance agent and application of the agent and belongs to the field of crop planting. In order to overcome the technical defects that thestress resistance effect is poor by applying glycine betaine alone in the prior art and corresponding substitute products fall short in the market, the provided high-temperature drought stress resistance agent is prepared from glycine betaine, urea and Tween-20. When the agent is applied to annual seedlings or annual or biennial or triennial plants, drop of the chlorophyll content under an adversesituation can all be alleviated, and the photosynthetic capacity of leaves is improved. Accumulation of superoxide radicals (O2 -) in the leaves is reduced, the relative electrolytic leakage and membrane lipid peroxidation level of the leaves are lowered, plant resistance to drought and other stress is improved, and the agent is suitable for application and popularization in the agriculture.

The invention discloses an application method of eutrophic water irrigation in the improvement of photosynthetic capacity of lawn plants, wherein the eutrophic water is the eutrophic water with 25 percent-75 percent of the original concentration thereof; and the eutrophic water has TN of 9.7mg / L-13.1mg / L, TP of 0.6mg / L-0.9mg / L and pH value of 8.12-8.99. Results show that the photosynthetic performances of the stomatal conductance, the intercellular carbon dioxide concentration, the net photosynthetic rate, the transpiration rate, the water content utilization efficiency and the like are improved if the diluted 25 percent-75 percent eutrophic water is used in the irrigation, thereby achieving the purpose of improving the lawn quality characters and protecting environment.

The invention belongs to the technical field of crop cultivation, and particularly relates to a cultivation method for shortening the growth period of bitter gourds. The cultivation method comprises the following steps of (1) establishment of greenhouses, (2) seed soaking, (3) seedling raising, (4) land preparation and base fertilizer application, (5) planting, (6) artificial pollination, (7) topdressing and (8) harvesting. The cultivation method for shortening the growth period of the bitter gourds has the advantages that by establishing the greenhouses with three-film covering, electric heat coil heating and supplement lights, the cultivation of strong seedlings is earlier, the botanical morphology, chlorophyll content, photosynthetic capacity and root activity of the seedlings are all obviously improved, the cultivated strong seedlings are transplanted into the warm greenhouse and the ordinary greenhouse for planting separately, and male flowers in the warm greenhouse are utilized to pollinate female flowers in the ordinary greenhouse, so that the problem that the bitter gourds have few male flowers or even no male flowers in winter and spring cultivation can be solved, and the growth period of the bitter gourds is accordingly earlier, and appears on the market about 25 days earlier than the regular time, the early yield is higher, and is increased by 94.22% in average, and the economic benefits are significantly improved.

The invention discloses a kiwi fruit cultivation method, which comprises the steps of site selection, site preparation, seedling selection, seedling and topdressing, shaping, preventing pests and diseases, and harvesting. The method of the invention can increase fruit size, increase coloring, increase sugar content, improve fruit quality, and the yield of kiwifruit has been increased by more than 30%. Watering once a month can also promote the growth of the root system of kiwifruit plants, restore tree vigor, and enhance the growth of leaves. Photosynthetic ability, promote flower bud differentiation, and lay the foundation for the high yield of kiwifruit in the following year.

The invention provides a preparation method of a suspension liquid water-soluble fertilizer with amino acids, calcium and magnesium. The method comprises the following steps: (1) respectively preparing a mixed solution A and a mixed solution B in advance, adding raw materials according to a ratio, and stirring while adding the raw materials, wherein the mixed solution A is prepared from calcium nitrate, water, ammonium polyphosphate and an amino acid plant nutrient solution; the mixed solution B is prepared from magnesium sulfate, water, urea, potassium pyrophosphate and the amino acid plant nutrient solution; and (2) adding the mixed liquid A and the mixed liquid B into a liquid shearing machine, circularly emulsifying, successively adding a stabilizer and a penetrant while emulsifying, continuously emulsifying for 10-30 minutes, adding potassium hydroxide for adjusting to a proper pH value to form a mixed solution C, cooling, filtering and filling the mixed solution to form the suspension liquid water-soluble fertilizer. After the suspension liquid water-soluble fertilizer is subjected to double chelation of the amino acid plant nutrient solution and ammonium polyphosphate, calcium and magnesium elements in the product are not easily regulated by the soil; the suspension liquid water-soluble fertilizer is easily absorbed; the nutrient utilization rate is increased; the suspension liquid water-soluble fertilizer is capable of directionally complementing the calcium and magnesium elements and improving stress resistance and photosynthetic capacity of the crops.

The technical invention belongs to the technical field of plant cultivation, and particularly relates to a method for promoting the growth of machilus chinensis seedlings. The method comprises the following steps: spraying a nitrogen fertilizer solution uniformly once every month to soil areas around annual machilus chinensis seedlings, wherein the nitrogen fertilizer solution is an NH4NO3 solution with the mass-volume concentration of the NH4NO3 being 25-45g / l and the nitrogen fertilizer solution is 10 ml in volume. The method for promoting growth of machilus chinensis seedlings, provided by the invention, has the benefits as follows: nitrogen fertilizer is sprayed into machilus chinensis seedling potting containers according to the optimal formula for different growing seasons and different growth periods of the machilus chinensis, the chlorophyll content is improved by scientifically and effectively utilizing a precisely quantitative nitrogen applying technology, the photosynthetic capacity of the machilus chinensis seedlings is improved, the adaptive capacity of the machilus chinensis seedlings to the environment is improved, the rapid growth of the machilus chinensis seedlings is promoted and the quality of the machilus chinensis seedlings is further improved.

The invention discloses a leaf fertilizer suitable for a cotton seedling stage and a preparation method and an application thereof; the leaf fertilizer is composed of urea, urea phosphate, ammonium sulfate, ammonium dihydrogen phosphate, monopotassium phosphate, potassium sulfate, potassium acetate, potassium fulvate, magnesium sulfate, sodium carbonate and lauryl sodium sulfate. The preparation method comprises the steps: A, firstly, respectively crushing urea and urea phosphate by using a pulverizer; B, mixing crushed and screened urea, ammonium sulfate, ammonium dihydrogen phosphate and 1 / 3of potassium sulfate into a premixed material by using a three-dimensional mixing machine; C, mixing potassium acetate, potassium dihydrogen phosphate, potassium fulvate, potassium sulfate and 2 / 3 ofpotassium sulfate into a premixed material by using the three-dimensional mixing machine; and D, mixing the premixed materials with the crushed and screened urea phosphate, sodium carbonate and lauryl sodium sulfate, to obtain the cotton seedling stage leaf fertilize. Through field validation, the formula is reasonable, the method is easy to implement, and the problems of nutrient absorption deficiency, slow growth retardation, poor resistance ability, weak seedlings and diseased seedlings caused by low temperature, insufficient root system development and relatively weak photosynthetic capacity at the cotton seedling stage are solved.

Provided are isolated polypeptides which are at least 80% homologous to SEQ ID NOs: 202-219, 221-292, 295-327, 4064-4175, 4177-4210, 4212-4580, 4582-4603, 4605-4749, 4751-4778, 4780-5223, 5225-5493, 5522-5807, 5812, 5815-5816, 5828-6679, 6689-6690, 6708-6785, 6792-6892 or 6893, isolated polynucleotides which are at least 80% identical to SEQ ID NOs: 1-91, 94-201, 328-2317, 2320-2321, 2323, 2326-3835, 3838-3840, 3842-3843, 3848, 3850-3852, 3854, 3856-3953, 3955-4061 or 4062, nucleic acid constructs comprising same, transgenic cells expressing same, transgenic plants expressing same and method of using same for increasing yield, abiotic stress tolerance, growth rate, biomass, vigor, oil content, photosynthetic capacity, seed yield, fiber yield, fiber quality, fiber length, and / or nitrogen use efficiency of a plant.

The invention relates to a method for improving the photosynthetic capacity of tall fescue by adopting saline soil filled with waste crumb rubber, which is characterized by comprising the following steps of: (1) substrate compound and preparation: placing 1000g of sand at a bottom layer, placing 20g of waste crumb rubber with the diameter of 0.5-1 mm on the bottom layer, placing 1500g of saline soil on the third layer and coating a layer of 100g loam soil on the topside, wherein the saline soil contains 0.2-0.8 percent of NaCl; after tall fescue on a lawn sprout fully and stably, transplanting the tall fescue to an experimental geobotany and deeply burying in soil by adopting a potting method; and (2) after grass on the lawn grows stably, selecting 10 grasses after 60d, measuring the photosynthetic capacity and the biomass liveweight on the ground and underground.