Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

92results about How to "Guaranteed stable production" patented technology

A kind of early-maturing cultivation method of small watermelon

The invention belongs to the technical field of agriculture, and discloses a cultivation method for premature small watermelon. The method comprises the following steps of: (1) grafting and raising seedlings: the sowing time of stocks is the first ten days and the middle ten days of December, and scions are sowed in 7 to 12 days later than the stocks; (2) planting grafted seedlings, and performing heat insulation and temperature rise by adopting four-layer coverage of a big shed, a medium shed, a small shed, a mulching film and an electric heating wire; (3) controlling the temperature; (4) pruning with a double-vine or three-vine pruning method; (5) performing artificial pollination and leaving fruits: performing artificial pollination when the second female flower of the main vine and the first female flower of the side vine come out; and (6) harvesting. The harvesting time of the premature small watermelon cultivated by using the method is advanced to the middle ten days and the last ten days of April and advanced by 20 to 30 days compared with the conventional greenhouse cultivated watermelon, and the harvesting time is kept away from the plum rain season of the southern district, so that high yield and stable yield are ensured. Not only the market demand is met, but also the yield and the economic benefit are greatly improved.
Owner:NANJING INST OF VEGETABLE SCI

Plunger device for gas well online measurement and plunger type drainage gas recovery system

The invention provides a plunger device for gas well online measurement and a plunger type drainage gas recovery system. The plunger device comprises an instrument working barrel assembly, a plunger central barrel, a plunger sliding sleeve and a damper assembly, the instrument working barrel assembly is positioned at the top of the plunger device, the plunger central barrel and the plunger sliding sleeve form a main body of the plunger device, the damper assembly is positioned at the bottom of the plunger device, and a measuring instrument and a communication module are arranged in the instrument working barrel assembly. When used for gas well production, the plunger device goes back and forth between a well mouth and a well bottom and uninterruptedly transmits data measured by the underground measuring instrument to the ground for analysis in a wireless data transmission manner by the aid of the communication module at the well mouth. The plunger type drainage gas recovery system comprises a blowout prevention pipe assembly and a plunger, the measuring instrument and the communication module are arranged in the plunger, and the plunger uninterruptedly transmits the data measured by the underground measuring instrument to a communication module internally arranged in the blowout prevention pipe assembly by the aid of the communication module at the well mouth. The plunger device for gas well online measurement and the plunger type drainage gas recovery system are capable of meeting online measurement requirements of natural plunger gas-lift wells.
Owner:PETROCHINA CO LTD

Double cropping rice nitrogen-saving high-yield production method

The invention relates to a double cropping rice nitrogen-saving high-yield production method. A double cropping rice planting region is selected; 15 to 30 days before late rice is harvested, astragalus sinicus planting is carried out; after the late rice is harvested, ditching is carried out according to an astragalus sinicus planting technology; 30 to 50kg of calcium magnesium phosphate fertilizer is applied per mu; 1 to 2kg of potassium chloride used as a base fertilizer is applied per mu; 10 to 15 days before early rice is transplanted, dry tillage and plowing pressing are carried out; land preparation is carried out according to the early rice planting requirements; azolla is bred; and after shoal water of field water, which has a height of 1.5 to 3.5cm, is kept for 8 to 10 days, the base fertilizer is applied to carry out early rice transplanting. During growth of the early rice and the late rice, duckweed utilization is naturally carried out; before the late rice is transplanted, a sustained-release nitrogen fertilizer is applied in one step as the base fertilizer; and on mid-to-late September in the next year, circulation operation of farming of planting astragalus sinicus green manure crops and the like is carried out. According to the invention, astragalus sinicus green manure is planted during the slack winter season of double cropping rice planting, the azolla is bred during growth of rice, the rice special sustained-release nitrogen fertilizer is applied to the late rice in a decreasing manner, the astragalus sinicus and the azolla are utilized to fix nitrogen and adsorb carbon, the land is maintained by the land, organic materials and an organic nitrogen source are provided for rice, nutritive substances in the double cropping rice field, which are easy to loss, are adsorbed, non-point source pollution is reduced and fertilizer supply and the fertilizer requirement of rice are coordinated and consistent.
Owner:CHANGSHA ENVIRONMENTAL PROTECTION COLLEGE +2

Method for removing sulfate radical from injected water in oil field for anti-scaling

A method for removing sulfate radical from injected water in oil field for anti-scaling is applied in anti-scaling of oil fields and oil-water wells. The method is characterized by firstly pumping injected water into a coarse filtration system by a high-pressure pump for carrying out the coarse filtration treatment and then into a fine filtration system for treatment; and further pumping the injected water after the two-stage filtration by the coarse filtration system and the fine filtration system into a nanofiltration system for treatment. The injected water after the treatment is divided into clear water and condensed water. The clear water is directly re-injected to the underground target layer position. A ternary complex scale cleaning agent is added before the injected water enters the fine filtration system. The method has the effects that a nanofiltration film is adopted to remove sulfate ions in the injected water, thereby solving barium and strontium scales generated by incompatibility of the injected water and formation water, and the anti-scaling rate can be more than 80 percent; the ternary complex scale cleaning agent is added in the injected water before the injected water enters the fine filtration system, thereby leading the clear water after the treatment to be capable of reducing the formation scales and further reducing the scales of the nanofiltration film of the nanofiltration system.
Owner:PETROCHINA CO LTD

Carbon dioxide acidification blocking remover and process of not reversely discharging raffinate after acidification

ActiveCN103937475AEasy to store and absolutely safeEasy to transport and absolutely safeCleaning apparatusFluid removalActive agentSurface-active agents
The invention relates to a carbon dioxide acidification blocking remover and a process of not reversely discharging raffinate after acidification. The blocking remover comprises a reagent A which is prepared by directly mixing hydrochloric acid, hydrofluoric acid, glacial acetic acid, polyoxyethylene alkyl phenol ether, citric acid, a corrosion inhibitor, a mutual solvent and a clay stabilizer to form a homogeneous solution and a reagent B prepared by mutually mixing carbonate, a surfactant, an iron ion complexing agent, a demulsifier and clean water which are stirred for 1 hour at normal temperature. The process of not reversely discharging raffinate after acidification comprises the following steps: when an oil well is deblocked, first, injecting a medicament A into an oil layer; then, isolating the clean water by layers; then, injecting a medicament B into the oil layer; and finally, injecting clean water to extrude a mixture in a shaft to the stratum, then, injecting an acidizer into a loop space to a perforated interval, closing the well for 4-6 hours, opening the well, observing the pH value (control range from 6-7), periodically injecting the acidizer till raffinate is fully discharged out of the stratum, and finally, injecting clean water to extrude the mixture in the shaft into a dryline.
Owner:DAQING ZHONGYOU TAIKE PETROLEUM TECH SERVICE

Ecological rice-planting frog-breeding method through combination of planting and breeding

The invention discloses an ecological rice-planting frog-breeding method through combination of planting and breeding. The method comprises the following steps: (1) management at a stage of a rice seedling bed; (2) management at a stage of a field; and (3) stocking management of tiger frogs in the rice field. According to the ecological rice-planting frog-breeding method through combination of planting and breeding, no chemical fertilizer and chemical pesticide are applied in the whole process. Adopted fertilizer in the rice field is mainly rapeseed cakes and other organic fertilizer, Astragalus sinicus which is planted in a previous crop is adopted as green manure, and control of pests, diseases and weeds in the rice field is mainly achieved through agricultural control, biological control and physical control, such as frog breeding in the rice field, Trichogramma introducing in the field and insecticidal lamp placing in the field; matrine, azadirachtin and other bio-pesticide are applied to field blocks with serious pests, field weeds are controlled through artificial weeding assisted by nitrogen-fixing cyanobacteria which is bred in the field, and weeds at ridges are controlledthrough film mulching at the ridges. Through the ecological rice-planting frog-breeding method through combination of planting and breeding, environmental protection and field fertilization are achieved, and the produced rice has abundant nutrients and good quality.
Owner:文智光

Method for planting rice through waterlogged direct seeding

The invention discloses a method for planting rice through waterlogged direct seeding, and belongs to the field of rice planting. The method comprises the steps of land preparation before seeding, seed selection, prevention and control of weeds, calculation of the seeding amount, germination accelerating, seeding, water management, fertilizer management and prevention and control of diseases and insect pests. The method mainly comprises the following steps that treatment before seeding comprises field surface finishing and ditching for compartment finishing; a rice material with a germinationrate of 80% or above is selected, and germination is accelerated until rice husks are broken and radical buds are grown for standby application; after seeding, the compartment surface is kept waterlogged, wherein the waterlogging depth is 3-5 centimeters; after a three-leaf one-core stage, a water layer of the compartment surface is drained, and it is maintained that water exists in a ditch; in atillering stage, an earing stage and a grain-filling stage, shallow-water irrigation is maintained on the compartment surface. The method can effectively increase the emergence rate and planting percent of directly seeded rice, provides a guarantee for 'one-seeding whole-seedling' of the directly seeded rice, is beneficial to the high and stable yield of the directly seeded rice, can solve the problems such as seedling burnt caused by bird damage, rat damage, crop smothering and local high-temperature waterlogging, and provides a theoretical basis and technical reference for the large-scale popularization and application of the directly seeded rice.
Owner:广东省金稻种业有限公司

Drought-resisting and water-saving winter wheat spring irrigation and fertilization method

ActiveCN107135726AEasy to operateEasy to control and observeFertilising methodsHectarePotassium
The invention relates to a drought-resisting and water-saving winter wheat spring irrigation and fertilization method. The drought-resisting and water-saving winter wheat spring irrigation and fertilization method is implemented in winter wheat regeneration and jointing stages. The method comprises the following steps of (1) applying nitrogenous fertilizer and potash fertilizer in wheat fields; (2) performing water irrigation through a simple micro-spraying device; (3) starting irrigation from the far end of the wheat fields, after water sprayed by micro-spraying hoses rests on the field surface for 3-5 minutes, removing a section of the micro-spraying hoses to irrigate other areas in sequence until reaching the other end of the fields, and ensuring the irrigation amount to be 35-40 m3 per mu (=0.0667 hectares). The drought-resisting and water-saving winter wheat spring irrigation and fertilization method achieves water irrigation through the simple micro-spraying device, and accordingly is low in cost, simple in installation and field operation, assures years of service, avoids risks of ageing and loss and facilitates water amount control and observation; meanwhile, the drought-resisting and water-saving winter wheat spring irrigation and fertilization method is easy to accept by farmers during production, and by matching fertilization with water irrigation, saves water consumption as well as input of nutrient of nitrogen, phosphorus and potassium, ensures the yield of wheat and improves the utilization rate of nitrogenous fertilizer.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI

Air-ground cooperative pesticide application method and system

The invention provides an air-ground cooperative pesticide application method and system. The method comprises the steps that: target information of a to-be-operated orchard is obtained, wherein the target information includes geographic feature information and fruit tree feature information; according to the target information, a collaborative operation path of a plant protection unmanned aerial vehicle and a ground pesticide application unmanned vehicle is determined; and the plant protection unmanned aerial vehicle and the ground pesticide application unmanned vehicle are controlled to operate according to the collaborative operation path. According to the air-ground cooperative pesticide application method and system of the invention, the collaborative operation path is planned according to the feature information of orchards and fruit trees; on this basis, the plant protection unmanned aerial vehicle and the ground pesticide application unmanned vehicle are controlled to operate according to the planned collaborative operation path; the ground pesticide application unmanned vehicle is utilized to perform supplementary operation on an operation blind area of the plant protection unmanned aerial vehicle in an air-ground collaborative pesticide spraying mode, and therefore, pesticide liquid can fully cover the fruit trees, the pesticide utilization rate is improved to the maximum extent, negative effects caused by unreasonable pesticide spraying are reduced, environmental pollution is reduced, the pesticide spraying control mode and effect are optimized, fruit tree diseases and insect pests are effectively prevented and treated, and stable yield and yield increase of fruits can be effectively guaranteed.
Owner:BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI

Method for reducing vegetable field nutrient emission and improving vegetable commodity characters

The invention provides a method for reducing vegetable field nutrient emission and improving vegetable commodity characters, and belongs to the technical field of agricultural area source pollution control and vegetable production. Specifically, the wheat straw charcoal technology with reduced fertilizer application and moderate organic fertilizer application is adopted to achieve the effects of reducing the emission of nitrogen and phosphorus nutrients in vegetable field soil runoff, stabilizing the yield of vegetables and improving the commodity characters of vegetables. By adopting the technology, the nitrogen concentration and phosphorus concentration of vegetable field runoff water can be significantly reduced by 13.95%-23.68% and 34.81%-52.44% respectively, and the nitrogen loss by runoff and phosphorus loss by runoff in the vegetable growth period can be significantly reduced by 13.95%-23.68% and 34.81%-52.44% respectively; meanwhile, the risk of vegetable field nitrogen and phosphorus loss by runoff can be significantly lowered. Furthermore, by adopting the technology, the yield of vegetables can be maintained stable, the cabbage nitrogen partial productivity is significantly improved by 24.39%-28.98%, the sphericity index of cabbage heads is significantly increased by 6.17%-7.41%, and the commodity characters of vegetables are significantly improved.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Few-no-tillage-soil seeding and fertilizing method for wheat and corns under complete straw mulching condition

The invention relates to a few-no-tillage-soil seeding and fertilizing method for wheat and corns under a complete straw mulching condition. The seeding and fertilizing method comprises the following steps of: after wheat is harvested by a combined wheat harvester, covering straws on the surface of soil in a strip manner basically, and implementing subsoiling, shallow and deep fertilization and seeding of corns in one step in seeding lines by a no-tillage corn seeding and fertilizing machine; and after the corns are harvested by a combined corn harvester, cutting up corn straws by rotary blades of the combined corn harvester, uniformly covering the corn straws on the surface of the ground, and implementing subsoiling, rotary tillage of wheat seeding belts, seeding of wheat and shallow and deep fertilization in one step by a no-tillage wheat seeding and fertilizing machine. The few-no-tillage-soil seeding and fertilizing method has the advantages of alleviating disturbance on soil, ensuring the variety and stable quantity of microorganisms in surface soil, being beneficial to benign growth of roots of crops and eliminating the influence of crop straw mulching on the quality of seeding and seedling emergence of wheat and corns.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products