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310results about How to "Improve photosynthesis efficiency" patented technology

Outdoor self-irrigating flowerpot

The invention discloses an outdoor self-irrigating flowerpot which comprises an outer flowerpot body and an inner flowerpot body. The inner flowerpot body is connected with the inner bottom of the outer flowerpot body through a plurality of adjusting springs, a water storage cavity is formed in the lower portion of the outer flowerpot body, a water discharging and storing mechanism is arranged inthe water storage cavity, a starting groove is formed in the inner wall of the outer flowerpot body, a propelling spring is fixed at the inner bottom of the starting groove, a propelling block is fixed at one end, close to the inner flowerpot body, of the propelling spring, a pushing groove is formed in the upper end of the propelling block, and a partition plate is slidably connected in the innerwall of the pushing groove. The flowerpot has the advantages that a certain amount of irrigating water is stored in the water storage cavity and ejected under pushing of an extruding plate, ejectionof irrigating water flow is controlled by the weight of the inner flowerpot body, and the irrigating water flow can be timely supplemented and to irrigate plants after moisture in the flowerpot is lost according to a relationship between the weight of the inner flowerpot body and moisture in the inner flowerpot body, so that the plants are timely and effectively irrigated when in water shortage.
Owner:BINZHOU POLYTECHNIC

Special water-retaining and synergistic seaweed fertilizer rich in medium trace elements for chilli, and preparation method thereof

The invention discloses a special water-retaining and synergistic seaweed fertilizer rich in medium trace elements for chilli. The special water-retaining and synergistic seaweed fertilizer comprises the following raw materials in parts by weight: 100-360 parts of seaweed extract, 100-360 parts of ammonium nitrate phosphate, 100-380 parts of urea, 100-450 parts of monopotassium phosphate, 0-100 parts of calcium-magnesium phosphate fertilizer, 0-60 parts of EDTA chelated trace elements, 0-30 parts of biological synergist and 5-300 parts of filler. The special water-retaining and synergistic seaweed fertilizer disclosed by the invention is capable of promoting the root development of chilli, enhancing the disease-resistant capacity of the roots, stems and leaves of crops, increasing the content of chlorophyll, increasing the efficiency of photosynthesis, improving the photosynthesis of the crops, and increasing the activity of enzymes because an appropriate amount of trace elements necessary to the growth of chilli, and alginic acid are added; and meanwhile, absorption and utilization for the nutrients and water of soil are improved, the yield is greatly increased, and the quality is improved.
Owner:STANLEY AGRI GRP CO LTD

Rice leaf color control gene heme oxygenase2 (HO2) and application thereof

The invention discloses a rice leaf color control gene heme oxygenase2 (HO2) and an application thereof. A gene which is cloned from a rice leaf control mutant ho2 and is proved to have the effect of controlling the color of a rice leaf is named after HO2. A transgene functional complementation assay proves that the HO2 is the gene which controls the color of the rice leaf. Comparative analysis on amino acid sequences shows that HO2 protein belongs to a hemeoxygenase protein family. Phenotype observation and biophysical analysis prove that the cloned gene has the effects of regulating and controlling the development of chloroplasts and then controlling the color of the leaf. The invention also discloses an application of the rice leaf color control gene HO2 in fine seed breeding and cross breeding by taking a green yellow leaf character as a marker character by using genetic engineering. The rice leaf color control gene HO2 is obtained by using a map-based cloning technology, and the effects of the gene is tested through the transgene functional complementation test. Therefore, the rice leaf color control gene HO2 has the effect of ensuring rice to keep an appropriate leaf color, so that the photosynthetic efficiency of the rice is improved, and finally the rice yield can be improved.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES

Preparation method and application of leaf vegetable nano leaf fertilizer

The invention discloses a preparation method of a leaf vegetable nano leaf fertilizer. According to the method, raw materials are smashed and decomposed into nano-scale materials through high-temperature stirring, electron beam irradiation and ultrasonic treatment based on lignin containing a net structure and active radicals in papermaking black liquid, and the adsorptive property of the lignin is increased, so that a phosphate fertilizer, a nitrogen fertilizer, a potash fertilizer, imino disuccinate chelated microelements, two conditioners such as rapin and biochemical fulvic acid and nanometer titania are adhered and bonded together to prepare the leaf vegetable nano leaf fertilizer. The preparation technology is simple, low in cost and high in controllability, the prepared leaf vegetable nano leaf fertilizer is scientific in proportioning of the raw materials and high in total nutrient content, the product is mixed with water, the mixture is sprayed and applied onto leaves of leaf vegetables, so that on one hand, nutrients of the leaf fertilizer can be fixed on the leaves, drifting, leaching loss and evaporation of the fertilizer are reduced, on the other hand, nutrient absorption and movement inside the leaves of the leaf vegetable fertilizer can be promoted, and the absorption and utilization rate is high.
Owner:DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD

Greenhouse CO2 gas fertilizer increasing method, device and system

The invention relates to a greenhouse CO2 gas fertilizer increasing method, device and system. The method comprises the following steps that: environment information and the photosynthetic rate value of crops in a greenhouse are acquired; with the environmental information and the photosynthetic rate value respectively adopted as an input variable and an output variable, an SVM-based photosynthetic rate prediction model can be established; a relation curve graph between CO2 concentration and photosynthetic rate under the interaction effect of various environmental factors can be obtained through analysis; a CO2 concentration saturation point corresponding to a maximum photosynthetic rate value under combined conditions of specific environmental factor variables is obtained from the relation curve graph; a CO2 increase adjustment and control model is established; and CO2 supply quantity is calculated, and CO2 is increased in the greenhouse under control. The device comprises a data acquisition unit, a photosynthetic rate prediction model establishment unit, an analysis and processing unit, a CO2 increase calculation unit and an execution control unit. With the CO2 gas fertilizer increasing method, device and system of the invention adopted, optimal CO2 supply quantity can be calculated fast and accurately, and fine adjustment and control of CO2 gas fertilizer increase can be realized, and the photosynthetic efficiency and yield of the crops can be improved.
Owner:CHINA AGRI UNIV

Microalgae tube type reactor and system thereof

The invention provides a microalgae tube type reactor and a system thereof, and belongs to the field of bioengineering. The microalgae tube type reactor comprises a stirring and circulating mechanism, wherein the stirring and circulating mechanism comprises a stirring internal mechanism and a stirring external mechanism; the stirring internal mechanism comprises a fixed guide rod and a stirring ball; the stirring external mechanism comprises a guide rail, a traction belt and a guide magnetic block; a guided magnetic block is embedded in one side, which is tangent with the inner wall of a pipeline, of the stirring ball; and the guided magnetic block is arranged corresponding to the guide magnetic block and can realize magnetic guide movement by a pipeline. A microalgae tube type reaction system comprises the microalgae tube type reactor; and an automatic valve is arranged at a liquid discharge port. The microalgae tube type reactor realizes stirring and circulation of microalgae by utilizing movement of the stirring ball; compared with the prior art, mechanical damage to the microalgae caused by mechanical stirring is greatly reduced; the microalgae tube type reaction system further perfects the microalgae tube type reactor.
Owner:JIANGXI ELECTRIC VOCATIONAL & TECHN COLLEGE +1

Repairing device and repairing system for air replacing environment

InactiveCN102692909AOpen up new thinking on environmental protection and emission reductionFlexible choiceBatteries circuit arrangementsWatering devicesAutomatic controlIndoor air quality
The invention relates to a repairing device and a repairing system for an air replacing environment. The repairing system comprises at least one repairing device for the air replacing environment, and a central unit, wherein the repairing device has a function of repairing the environment; the central unit is connected with the repairing device for the air replacing environment; an onsite controller is connected with an accessing device of a control system through a communication line; and the accessing device of the control system is connected with a BACnet building automatic control system. According to the invention, carbon and oxygen replacement and energy storage are creatively combined and integrated; a plurality of scientific leading technologies, such as solar energy comprehensive utilization, plant cultivation, energy storage, wired and wireless intelligent control, BACnet intelligent system, wireless passive energy collection, air condition and energy conservation and wind energy, are combined; the environment repairing, air replacement and renewable energy source storage volume are designed according to local conditions; the repairing device can be used for commercial and civil indoor air environment IAQ (Indoor Air Quality) repairing, is connected with the present building automatic control system, is used for large-size urban environment repairing engineering, is used for automobile exhaust treatment and can be formed into a large-size environment repairing system.
Owner:江素霞

Device and method for automatic tobacco three-dimensional floating seedling raising

The invention relates to a device and method for automatic tobacco three-dimensional floating seedling raising. The device comprises a PLC control system and a nutrient liquid circulation system, a lighting system, a temperature and humidity regulation system and an air circulation system which are connected with the PLC control system, wherein the nutrient liquid circulation system is connected with a plurality of hydroponic racks, each hydroponic rack is provided with a plurality of layers of planting troughs, and each planting trough is provided with a seedling raising tray; a liquid inletand a liquid outlet are formed in each layer of the planting troughs, the height of the liquid outlets is adjustable, and each seedling raising tray comprises a plurality of hole cavities which are evenly formed and used for accommodating substrate sowing holes; and the bottom of each hole cavity is further provided with a bottom hole, and after a nutrient solution is added into the planting troughs, the seedling raising trays float on the planting troughs. The temperature, humidity, illumination time and other environmental parameters of the internal environment can be regulated artificially,so that the effects of illumination, season, temperature and humidity and other natural conditions on field floating seedling raising of tobaccos are eliminated, the uncertainty caused by weather isreduced, and the emergence rate of tobacco seeds can be increased significantly.
Owner:CHINA TOBACCO YUNNAN IND

Compound fertilizer for wheat production increase and preparation method thereof

The invention discloses a compound fertilizer for wheat production increase. The compound fertilizer is characterized by comprising the following raw material components in parts by weight: 50-60 parts of bran dregs containing 8-12% of bamboo shoot skin, 7-9 parts of pig manure, 2-3 parts of molasses, 1.2-1.5 parts of a fermenting agent, 8-12 parts of urea, 3-5 parts of calcium superphosphate, 3-5 parts of monopotassium phosphate, 3-5 parts of a micronutrient fertilizer, 4-6 parts of citrate soluble magnesite, 8-10 parts of fulvic acid containing 12-15% of turfy soil and 0.8-1.2 parts of a plant growth regulator. According to the compound fertilizer provided by the invention, the fermentation time is shortened, the prepared fermented fertilizer is high in loose degree, the organic content can reach 30% or above, the content of nitrogen phosphorus and potassium nutrients is 26-28 g/kg, the nutrients are abundant and can be quickly absorbed by crops, the soil moisture preserving and fertilizer retaining capacity is improved; the multi-element fertilizer is a nutrient substance necessary for crops, can be quickly absorbed, transferred and utilized by crops; with the advantage that acid radicals are neutralized and nutrients are provided by citrate soluble magnesite, as well as the promoting effect of the growth regulator on crop growth, the efficacies of enhancing drought resistance and stress resistance as well as promoting growth of crops are achieved.
Owner:QINGDAO XINRUNTU NURSERY STOCK SPECIALIZED COOP
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