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4311 results about "Paddy field" patented technology

A paddy field is a flooded parcel of arable land used for growing semiaquatic crops, most notably rice and taro. It originates from the Neolithic rice-farming cultures of the Yangtze River basin in southern China, associated with pre-Austronesian and Hmong-Mien cultures. It was spread in prehistoric times by the Austronesian expansion to Island Southeast Asia, Madagascar, Melanesia, Micronesia, and Polynesia. The technology was also acquired by other cultures in mainland Asia for rice farming, spreading to East Asia, Mainland Southeast Asia, and South Asia.

Seed coating agent special for direct seeding rice

InactiveCN101310582AEfficiently regulate changes in moisture contentRegulating changes in moisture contentSeed coating/dressingDiseaseAdditive ingredient
The invention discloses a seed coating agent specially used for direct seeding rice, which is characterized in that the seed coating agent mainly contains the following ingredients by weight: 2 to 8 percent of super absorbent resin, 1 to 5 percent of oxygenates, 0.1 to 0.5 percent of sparrow and rat destruction agent , 0.5 to 2 percent of bactericide, 0.5 to 2 percent of pesticide, 0.02 to 0.2 percent of plant growth regulator, 3 to 10 percent of trace element fertilizer and the margin is special type mineral clay. The powder raw materials are crushed to more then 100 meshes and are mixed evenly, the mixture is coated on the surfaces of rice seeds by a seed-coating method for direct sowing, thus clay sacculus integrating 'a small water reservoir, a small oxygen reservoir, a small drug storage and a small fertilizer storage' are formed around the rice seeds and at the roots of seedlings; the seed coating agent has the effects of preserving and providing water, ventilating and providing oxygen, promoting seedling emergency, preventing diseases and killing pests, preventing mice and destructing sparrows, strengthening seedlings and roots and increasing production. The seed coating agent is also characterized by low dosage, low cost, simple and convenient operation, and the like, thereby being applicable to coating rice seeds which are directly sowed both on flooded paddy fields and dry paddy fields.

Method for comprehensively raising various types of aquatic livestock and cultivating paddy in paddy field

InactiveCN103348890AReduce stocking densityPromote small sizeClimate change adaptationAnimal feeding stuffCarassius auratus gibelioIngested food
The invention relates to a method for comprehensively raising various types of aquatic livestock and cultivating paddy in a paddy field, in particular to the raising of Chinese soft-shelled turtles, crawfish and carassius auratus gibelio in the paddy field and the cultivation of paddy. The method comprises the steps of paddy field preparation, aquatic plant transplantation, live food feeding, paddy transplantation, young aquatic livestock placement, bait feeding, daily management, aquatic livestock fishing and paddy harvest. The method for comprehensively raising various types of aquatic livestock and cultivating paddy in the paddy field has the advantages that the various types of aquatic livestock can be raised and paddy can be cultivated in the same field comprehensively, the difference between the period for paddy cultivation and the period for raising aquatic livestock is small, the use rate and the comprehensive efficiency of the field can be effectively improved, and economic benefit can be improved to a large extent; meanwhile, any chemical fertilizer, herbicide and insecticide are not used in the process of production, the produced products can meet the standard of organic food, and finally, edible safety of the products is achieved; the whole process of production is beneficial to conservation of water and soil of the field and the surrounding environment and effectively facilitates the protection of natural ecology.

Rice field-fishpond planting and breeding compound system

The invention relates to a rice field-fishpond planting and breeding compound system, which belongs to the technical field of comprehensive utilization of agricultural ecological aquaculture. The compound system comprises a rice field, a fishpond, a simple ecological ditch and a strengthened ecological ditch, wherein the rice field is arranged at one end of the fishpond; the strengthened ecological ditch and a water collecting tank are respectively arranged on one side of each of the fishpond and the rice field; the simple ecological ditch is formed in the rice field; a small overflow port is formed in the simple ecological ditch; the rice field is communicated with the water collecting tank by a large overflow port; the fishpond is communicated with the simple ecological ditch by a water suction pump. According to the rice field-fishpond planting and breeding compound system disclosed by the invention, the rice field planting and the fishpond breeding are organically combined by the ecological ditches, so that the fishpond breeding water is refluxed to a new circulating water planting-breeding mode after being purified by the rice field and the ecological ditch. Moreover, the problems that an existing rice-orientated planting-breeding mode with the fish breeding has rice-fish contradictions including field drying, fertilizer applying, pest controlling and the like in the production process, and is limited in yield and inconvenient for large-area popularization are solved.

Organic rice cultivation method

The invention discloses an organic rice cultivation method, which comprises the following four steps of: 1) rice seedling raising, 2) fertilizer application; 3) reasonable close planting and 4) field management. The organic rice cultivation method is characterized in that the step of fertilizer application comprises the following two sub-steps of: 1) preparing and applying composted farmyard manure: evenly spraying microbial manure into farmyard manure, covering the farmyard manure with a plastic film, processing for 21 days to obtain the composted farmyard manure and then applying the composted farmyard manure in a paddy field; and 2) applying microbial manure: applying the microbial manure in the paddy field with water depth being less than 3cm and transplanting rice seedlings 15 days later after the microbial manure is applied. The organic rice cultivation method has the advantages that the heavy-metal ions and the chemical residues thereof in soil can be eliminated; the caking and the desertification of the soil can be gradually eliminated, the content of organic matters is improved, the pH (potential of hydrogen) is regulated, the granular structure is optimized and the breeding of harmful pathogenic bacteria is inhibited; the nutrients are sufficient; and a large quantity of nitrogen elements in air and various intrinsic elements in the soil are fully utilized, and low-carbon, environmental-friendly, sustainable, circular and high-efficiency agricultural economy is formed.

Heavy metal composite passivating agent used for paddy soil and preparation method thereof

The invention discloses a heavy metal composite passivating agent used for paddy soil and a preparation method thereof. The heavy metal composite passivating agent is prepared from three raw materials, namely meerschaum mineral powder, iron and manganese oxides and quicklime, in proportion by the following steps of: A, preparing the meerschaum mineral powder; B preparing the iron and manganese oxides; and C, uniformly mixing the raw materials prepared in the steps A and B with the quicklime to obtain the composite passivating agent. The heavy metal composite passivating agent has a reasonable formula, the method is easy and simple to operate; and the heavy metal composite passivating agent can reduce 70.5 to 95.0 percent of the content of the effective components of meerschaum with heavy metal activity, the iron and manganese oxides (Fe2O3+MnO2), calcium oxide (CaO) and the like in the soil, and also has multiple functions of passivating soil heavy metals, restoring acidified soil and the like, can reduce the contents of active cadmium and lead in the soil of a polluted paddy field by 39.7 to 53.8 percent and 49.9 to 59.1 percent respectively, lower the contents of the cadmium and the lead in agriculture products by 35.1 to 46.9 percent and 35.3 to 53.1 percent respectively, and simultaneously improve the pH value of the soil by 0.22 and 0.43. The heavy metal composite passivating agent is mainly used for paddy production of extensive heavy metal pollution zones, and can also be used for the productions of corns, vegetables and the like planted in paddy fields.

Rice field ecological planting and breeding method

The invention relates to a rice field ecological planting and breeding method. By means of the rice field ecological planting and breeding method, Procambarus clarkii are bred and rice is planted in a rice field circularly. The rice field ecological planting and breeding method includes the steps of preparation of the rice field, putting of shrimp seeds, feeding of shrimps, rice cultivation, management of the rice field, fishing for shrimps and reservation of parent shrimp seeds. Circular grooves of the rice filed are disinfected and grass is planted in the circular grooves immediately after the circular grooves of the rice field are finished, the reservation of parent shrimp seeds is mainly carried out in the later period of finishing, and parent shrimps are guaranteed to be reserved in the field for breeding parent shrimps of the next year. The rice field ecological planting and breeding method has the advantages that the Procambarus clarkii are reserved after rice is harvested, and the rice field does not need to be turned over, ploughed or harrowed, planting and breeding are jointly carried out continuously and the utilization rate of farmlands is high; fertility of the farmlands is uniform; worm eggs are eaten by the shrimps so that diseases and insect pests of the rice can be prevented; the survival and breeding environment of the shrimps is stable, and the yield is high; the structure of the rice field is favorable for breeding and growth of the shrimps; chemical inorganic fertilizer and chemical pesticides are not used, so that the natural ecological environment is effectively protected.

Recycle mixing type rice field culture method

Provided is a recycle mixing type rice field culture method. According to the method, a rice field and fresh water resources are utilized for culturing. The method comprises the following steps of arrangement of the rice field, installation and adjustment of facilities, disinfection of the clean field and water fertilizing, rice planting, loach and Chinese soft shell turtle stocking, edible frog throwing, loach and edible fog harvesting, rice harvesting, water entering to flood the field, freshwater shrimp autumn seedling stocking, freshwater shrimp multiple fishing and coming into the market of freshwater shrimps, freshwater shrimp and Chinese soft shell turtle capturing, and ploughing and field drying, wherein the arrangement of the rice field comprises the excavation of culturing ditches, and trimming of field ridges. By the adoption of the method, rice-fish culture and freshwater shrimp autumn seedling and Chinese soft shell turtle mixed culture are organically and cyclically combined, the problems that an empty rice field in winter is not utilized, a water-phase food chain is simple, the mutually beneficial level of rice and fish is low and the bird prevention and the pest removal are low are solved thoroughly, the recycle and safe and efficient output of the rice field are ensured, the significant increasing of the benefits of rice field culture is achieved, and the method has the advantages that the culture process is easy to operate, the culture cost is low and the culture safety is high.

Method for treating kitchen waste

The invention relates to a method for treating kitchen waste. The method comprises the following steps: (1) removing non-organic impurities which can not be treated and are of black soldier fly larvae in the kitchen waste, and then measuring the oil content, salinity, water content and carbon nitrogen ratio of the black soldier fly larvae; (2) adding rice field straw or / and rotten fruit, vegetables and the like for adjusting the content of carbon element, and adding poultry and livestock manure such as chicken manure or / and pig manure for adjusting the content of nitrogen element; (3) crushing the obtained mixture, putting into a homogeneous pool, stirring and fermenting to obtain a mixed organic waste which is in accordance with the growth indexes of the black soldier fly larvae; (4) inoculating the black soldier fly larvae; (5) treating the mixed organic waste under the conditions that the temperature is 26-28 DEG C, the relative humidity is 40-50% and the illumination intensity is lower than 25 lx; (6) separating out treatment residue and black soldier fly bodies; (7) treating the residue by means of natural compost to obtain an organic fertilizer. After the method is used for treating the kitchen waste, the treatment efficiency of the kitchen waste is improved, and the yield of the black soldier fly bodies is increased.

Weeding robot with adjustable center of gravity for paddy fields

InactiveCN102696294ALower center of gravityReal-time monitoring of distributionSoil-working equipmentsWhole bodyPaddy field
The invention relates to a weeding robot with the adjustable center of gravity for paddy fields. The weeding robot comprises a hub driving type caterpillar track device, a caterpillar track lifting device, an extension movement device and a slider balance device. The hub driving type caterpillar track device is used for driving a hub through a hub motor, thereby driving caterpillar tracks to run, enabling the robot to walk between rice seedling lines, pressing weeds into mud and even cutting off or pulling out weeds; the caterpillar track lifting device and the extension movement device are used for realizing the lifting and extension of the caterpillar track device so that line changing walking and field ridge crossing walking can be carried out; the slider balance device is matched with the caterpillar track lifting device and the extension movement device and is used for adjusting the center of gravity of the robot and realizing the self balance of the whole body of the robot in the line changing process and the field ridge crossing process and the self-restoring function after the robot sinks into a pit in a paddy field environment with pits; and the weeding robot has the advantages of simple structure, small volume, light weight, convenience in carrying and high universality.

Reclamation method for sunk paddy field caused by mining in mountainous regions

The invention relates to a reclamation method for a sunk paddy field caused by mining in mountainous regions and belongs to the technical field of improvement and utilization of environment, ecology and damaged fields. The method includes: performing topsoil stripping to fissured positions where fissures are created by mining sinking and lead to water leakage of the paddy field; covering water holding materials on fissured areas after topsoil stripping; compacting the covered water holding materials, pouring slurry and standing; performing topsoil backfilling and grinding to the fissured areas after slurry pouring and standing, and flattening to enable the fissured areas to be a whole with pieces of the paddy field around the fissured areas; and irrigating, nourishing and improving the paddy field after backfilling and grinding. By the method, the cultivation land where the fissures are created by mining sinking and lead to water leakage of the paddy field can restore the paddy field utilization mode and reach production level of a normal paddy field as soon as possible, a stable self-maintaining farmland ecological system can be formed, a paddy field protecting system can be formed, soil microbial content can be increased, physicochemical property of soil can be improved, and benign farmland ecological system circulation can be formed.

No-tillage seedling-throwing overall aerobic cultivation method for oil crop-medium rice fixed compartment ditch

The invention belongs to the field of rice cultivation, and particularly relates to a cultivation method suitable for no-tillage rice in a fixed compartment of an oil crop-medium rice field. The cultivation method comprises the following steps that: (1) rice seeds are coated by using dry-raised nurse, thick mud and dry fine soil serving as coating agents, wherein the components comprise 7.9 to 12.5 percent of dry-raised nurse, 25 to 26.3 percent of rice seeds, 12.5 to 13.2 percent of thick mud with 37 percent of water content and 50 to 52.6 percent of dry fine soil with 3 percent of water content in percentage by mass; the rice field is finished as required and the soil moisture is kept; and keeping the seedling age at 15 to 18 days; (2) the compartment width of the oil crop field is 1.2 meters, the width of the ditch is 0.3 meter, and the depth of the ditch is 0.25 meter; the rape seedlings are applied to the field; a ternary compound fertilizer of which pure nutrients comprise 15 percent of N, 15 percent of P2O5 and 15 percent of K2O is applied, and 30 kilograms of pure nitrogen is applied in each mu; 5.80 kilograms of zinc is applied in each mu; and 4.8 kilograms of boron fertilizer is applied in each mu, and the ditch is kept full of water; (3) rice seedlings with 50 to 100 grams of soil in each seedling in 15 to 18 days are directionally thrown according to a row space of 20 centimeters; and (4) the ditch is kept with water and the compartment surface has no water after throwing the seedlings till the heading stage, and dry and wet alternated cultivation is adopted from the grain filling stage to the maturation stage. Compared with the conventional method, the yield is averagely increased by 8.7 percent.

Complete wheat straw returning mechanical rice seedling planting method

The invention discloses a complete wheat straw returning mechanical rice seedling planting method, which comprises the following steps of: reserving stubbles of 10 to 30 centimeters when the wheat is harvested, cutting straws to the length of 5 to 8 centimeters, and uniformly scattering the cut straws on the surface of a field; applying a base fertilizer, irrigating water for 5 to 6 centimeters to soak the field for 2 to 3 days, and embedding grass and preparing the field for two times of transverse and vertical operations through a medium tractor and a grass embedding rotary cultivator, wherein the embedded depth of the wheat straws returned to the field is 5 to 10 centimeters; settling for 2 to 3 days after grass embedding and rotary tillage operations, and then mechanically planting seedlings, wherein the mechanical seedling planting water depth is 1 to 1.5 centimeters, and the seedling planting depth is within 1.5 centimeters; and after mechanical seedling planting, performing corresponding water, fertilizer and disease, insect and weed management at the early stage, the middle stage and the later stage respectively till the rice is mature. The straws are totally left in the rice field after the wheat is harvested, and the straws are totally changed into available fertilizer by natural decomposition, so the method avoids straw burning, purifies the air, protects the environment, improves the physical and chemical properties and aggregate structure of the soil and improves the organic substance content of the soil.
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