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45 results about "Intermittent irrigation" patented technology

Saline-alkali soil irrigation and drainage ecological improvement method

The invention relates to a saline-alkali soil irrigation and drainage ecological improvement method, comprising two parts, namely a composite gridded underground drainage brine discharging system and a water-saving irrigation washing system. The composite gridded underground drainage brine discharging system is formed by the way that a gridded drainage brine discharging network composed of a water absorption tube (branch drain pipe) and a blind drain is arranged below a saline-alkali soil layer, and salty underground water and washing influent seepage are discharged outside an improved region by virtue of two paths, namely the blind drain, the water absorption tube (the bran drain pipe), a collector pipe (main drain pipe) and the water absorption tube as well as the collector pipe; and the water-saving irrigation washing system is in charge of washing salinity in soil by adopting one or more than two measures of partition irrigation, estuarine rotation irrigation and intermittent irrigation. By adopting the method provided by the invention, the saline-alkali soil can be uniformly and efficiently improved, water resource can be saved, improvement time can be reduced, and better social, ecological and economic benefits can be achieved.
Owner:TIANJIN TEDA GREEN GRP CO LTD

Medical perfusion type irrigator

The invention discloses a medical perfusion type irrigator, belonging to the technical field of medical equipment. The medical perfusion type irrigator comprises a microprocessor module and a peristaltic pump, wherein the microprocessor module sends signals to the peristaltic pump to control the liquid outlet pressure and liquid outlet flow speed of the peristaltic pump; the microprocessor module is connected with a keyboard module, a pressure sensor, a flow speed sensor and a display module. The medical perfusion type irrigator disclosed by the invention can provide irrigation fluids with two flow speeds and four pressures, and can accurately control the temperature of the irrigation fluids and realize continuous irrigation as well as intermittent irrigation; with human-machine interaction, the irrigator is friendly and convenient to operate; moreover, in a special situation, the irrigator can give an alarm through sound and light to remind the medical personnel to handle exception in time. The medical perfusion type irrigator disclosed by the invention is applicable to multiple operations and the irrigation of multiple operative sites or tissues.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Compartment trench controlled irrigating paddy rice water-saving culturing method

The invention discloses a compartment trench controlled irrigating paddy rice water-saving culturing method. The culturing method comprise she following steps of ploughing the soil, digging trenches, forming compartments, direct broadcasting or transplanting paddy rice, managing moisture and managing the field. A compartment and trench mode is employed for paddy rice plantation; based on different paddy rice growth periods, a circulating irrigation process with humid compartment surface soil and formed by full trench water-half trench water or full trench water-dry trench is achieved; paddy field compartment trench water level can be visually tested and compartment surface soil humidity can be determined, so irrigating time and amount can be determined and present intermittent irrigation technology can be optimized; irrigation water can be conserved; rain water and irrigation water utilization rate can be improved; and paddy rice yield can be maintained or improved.
Owner:HUAZHONG AGRI UNIV

Agricultural greenhouse ecology regulation system

The invention discloses an agricultural greenhouse ecology regulation system. The system comprises a greenhouse body and is characterized in that two water storage boxes are fixedly connected to the outer wall of the greenhouse body, two mounting boxes are fixedly connected to the inner wall of the greenhouse body, multiple dust removing mechanisms are arranged inside the two mounting boxes, and awater supply mechanism is arranged inside the water storage box and the mounting box which are fixedly connected to the same lateral wall of the greenhouse body; each water supply mechanism comprisesa magnetic plate, the lower wall of the magnetic plate is elastically connected with the inner bottom of the corresponding mounting box through multiple memory metal sheets, iron sliders are fixedlyconnected to the two lateral walls of the magnetic plate, the inner wall of the corresponding mounting box are provided with two first slide grooves, and the iron sliders are respectively located in the two first slide grooves. The agricultural greenhouse ecology regulation system has the advantages that intermittent irrigation can be automatically performed on crops in the greenhouse body according to temperature change, a large amount of time and vigor are saved, the light permeability of the greenhouse body is increased, and the photosynthesis of the crops is benefited.
Owner:齐晗利

Method of planting ecological paddies to produce ecological rice

The invention relates to a method of planting ecological paddies to produce ecological rice. The method comprises the following steps of: treating seeds, that is to say, soaking rice seeds at the water temperature of 50-53 DEG C for 10 minutes, and then soaking at the water temperature of 15-25 DEG C for 5-7 days; preparing a seedling nutrition matrix, that is to say, carrying out biological fermentation on crushed rice hulls, and adding a plant water planting nutrient solution and fungi microorganisms containing decomposing cellulose after fermentation; ecologically fertilizing soil, wherein a fertilizer is formed by mixing and compounding the following fertilizers in parts by weight: 20-50 parts of organic fertilizers, 0.15-0.3 part of biological fertilizer, 8-12 parts of mineral fertilizers and 40-70 parts of chemical fertilizers; managing a water layer, that is to say, keeping the water layer for 6-8 cm during the period of rice transplanting and heading by a water conservation irrigation manner, and adopting an intermittent irrigation method after heading, wherein the irrigated water layer is 8-10 cm deep; and ecologically weeding. According to the method provided by the invention, high yield of the paddies is ensured, and safety quality and nutritional quality of the paddies are kept.
Owner:BEIJING JINDAO YUKANG RICE IND

Automated irrigation control method, server and computer readable storage medium

The embodiment of the invention relates to the technical field of agriculture, and discloses an automated irrigation control method and device. The automated irrigation control method comprises the steps of starting intermittent irrigation, wherein when the radiation accumulation amount is larger than or equal to a preset radiation threshold value, irrigation is started, after every time of irrigation, the radiation accumulation amount of irrigation is controlled to return to zero, and calculation of the radiation accumulation amount of irrigation is restarted; detecting whether or not a firstfeature value is larger than or equal to the preset threshold value, and if yes, stopping the intermittent irrigation, wherein the first feature value is used for representing the un-absorbing degreeof liquid by plants; calculating the difference value between the stopping time of the intermittent irrigation and the sunset time, and if the difference value is larger than a first preset duration,restarting irrigation once before the sunset time. By means of the automated irrigation control method and device, crops are reasonably irrigated, it is guaranteed that the irrigation amount meets the growth requirements of the plants, and it is also prevented that resources are wasted when irrigation is excessive.
Owner:SHENZHEN SPRINGWOODS HLDG CO LTD

Novel intermittent drop irrigation method

The invention relates to the field of plant irrigation, in particular to a novel intermittent drop irrigation method. A pulse generator serving as a pulse water pressure adjusting device is arranged at a water inlet of a drop irrigation system and is tightly combined with a day-parting intermittent irrigation method to form an irrigation system with pulse pressure adjusting and day-parting intermittent irrigation to be combined. The novel intermittent drop irrigation method can accurately control the water amount according to different plant types and characteristics and different soil types. Thus, the water using efficiency of plants is improved, and water is saved. The drop irrigation method effectively combines a pulse technique with the day-parting intermittent drop irrigation method. The water dropping speed and the intermittent time can be controlled by adjusting the pulse pressure. Thus, the water using amount can be accurately controlled, the water content of plant root soil under water dropping openings can be in the optimal state, and the problems of water resource waste and salt accumulation of soil can be effectively solved. Meanwhile, plug of the water dropping openings can be reduced.
Owner:SHENYANG YUANDA INTELLIGENT AGRI

Black glutinous rice planting method

The invention discloses a black glutinous rice planting method in the technical field of black glutinous rice planting. The planting method includes the steps: first, spreading quick lime to a rice field before or after tillage, and applying farm manure to the rice field 15-20 days after spreading the quick lime; second, sunning black glutinous rice seeds before seedling raising, soaking the rice seeds in 25% prochloraz and 10% imidacloprid mixed with water, and spraying paclobutrazol mixed with water to each rice seedling with one leaf and one core during seedling raising; third, transplanting the raised seedlings to the rice field; fourth, applying nitrogen-phosphate-potassium compound fertilizers into the rice field 4-5 days after transplanting the rice seedlings, keeping the water depth in the rice field at 2.5-3cm, applying nitrogen-potassium compound fertilizers into the rice field and spraying ferrous sulfate water solution to the rice seedlings when starting heading filling of the rice seedlings, keeping the water depth in the rice field at 5-6cm at the earlier stage of heading filling of the rice seedlings; performing intermittent irrigation from the later stage of heading filling of the rice seedlings to the yellow ripening stage of rice grains. Both the yield and the quality of black glutinous rice planted by the method are greatly improved.
Owner:湄潭县宫廷香米业有限责任公司

Greening method for coastal saline-alkali land after soil improvement

The invention discloses a greening method for coastal saline-alkali land after soil improvement. The formula of improved coastal saline-alkali soil includes the original soil, 35% of hill-skill sand,20% of corn straw, 1.2% of desulfurized gypsum, 30kg of an organic fertilizer and 20kg of peat. Tree holes with the depth of 1m and the diameter of 1.2m are dug, a salt barrier layer is arranged around each tree hole, the bottom of the tree holes is buried with blind holes which are communicated with three tree holes, and there are a stone chip leaching layer with the height being 10cm, a fillinglayer with the height being 70cm and an irrigation layer with the height being 20cm in sequence on the blind pipes. The irrigation of the tree holes takes tap water as a water source and adopts a quantitative and intermittent irrigation mode, 200kg of tap water is irrigated into the tree holes once a day, and the irrigation is stopped after 7 days. The greening method determines the saline-alkalisoil improvement formula in allusion to main physical and chemical properties and soil structure of the river saline-alkali soil, and provides technical support and engineering experience for greeningthe river saline-alkali land.
Owner:AOWEI TIANJIN ENVIRONMENTAL PROTECTION TECH

Water quality detection, separation and recycling system and method

A water conservation and recycling system where an integrated automated system comprising a sensor housing with at least one sensor, a diverting valve and controller, the system used to separate water based on quality parameters (for example, temperature, acidity (pH), dissolved oxygen, electrical conductance and / or turbidity). In one example, physical bio-filtration is used to remove debris particles from clean water and ultraviolet light and ionization is used for bacterial eradication of clean water. Separated clean water is stored and recycled for agriculture and toilet purposes resulting in up to 40% reduction in residential and commercial water consumption. Municipal water supply line pressure is used to pressurize storage tanks to provide intermittent irrigation water supply.
Owner:UPADHYAY SHIVANI +1

Fertilizer deep application and cultivation method for increasing no-tillage middle-season rice yield and improving nitrogen use efficiency

The invention discloses a fertilizer deep application and cultivation method for increasing the no-tillage middle-season rice yield and improving the nitrogen use efficiency. The method comprises thesteps of 1, field pretreatment, wherein an amides systemic herbicide is applied after preceding crops are harvested and before seedling slinging; 2, dry rice-nursery, wherein hybrid rice is selected,seeds are aired on a clear day before sowing, and the seeds are placed in flowing clear water and soaked in the daytime and are fished out, spread and aired in the night; 3, fertilizer deep application, wherein deep application is conducted on a base fertilizer, broadcasting is conducted on an additional fertilizer, the base fertilizer is a nitrogen-phosphorus-potassium mixed fertilizer, deep application can also be conducted after nitrogen, phosphorus and potassium fertilizers are mixed, and the later additional fertilizer is mainly urea; 4, filed seedling slinging, wherein the fertilizer deep application is completed, irrigation field steeping is conducted before seedling slinging; 5, water management, wherein at the seedling stage, a shallow-water layer is kept, at the tillering stage,intermittent irrigation is conducted, and at the yellow ripening stage, air-drying is conducted after the dough stage; 6, filed management. The fertilizer deep application and cultivation method for increasing the no-tillage middle-season rice yield and improving the nitrogen use efficiency is easy to conduct and convenient to operate, effectively reduces ammonia volatilization and nitrogen loss of a no-tillage rice field, improves the nitrogen use efficiency of the no-tillage rice field, and increases the yield of the no-tillage rice field.
Owner:HUAZHONG AGRI UNIV

Self-balancing slurry harrowing and soil flatting operation machine for paddy field

The invention discloses a self-balancing slurry harrowing and soil flatting operation machine for a paddy field. The self-balancing slurry harrowing and soil flatting operation machine comprises a rotary support and a slurry harrowing machine body, and is characterized in that a bearing pedestal is installed below the middle of a front cross beam of the slurry harrowing machine body, a three-pointsuspension is welded to the front end of the rotary support, the front end of the rotary support is connected with a tractor, and rotating shafts are welded to the middles of a front cross beam and arear cross beam below the rotary support. The self-balancing slurry harrowing and soil flatting operation machine has the advantages that during operation, the left-and-right and horizontal inclination angle of the slurry harrowing machine body can be automatically adjusted, rotary tillage depth is free of influences of unevenness of the paddy field surface, slurry harrowing, stub burying and soil flatting operation can be completed at a time, and grinding pressure of the tractor on the paddy field is reduced. After the operation, the height differential value of paddy field blocks is small,the utilization rate of water resources can be increased, water consumed for irrigation can be saved greatly, intermittent irrigation is easy, accurate water consumption is realized, and the efficiency of irrigation reaches 90%. Meanwhile, fertilizer loss and fertilizer shortage are reduced, and the utilization rate of chemical fertilizer is increased by 10% or more. Fundamentally, the ecologicalenvironment of whole countries is protected, and discharging of harmful substances is controlled.
Owner:HUAIHAI INST OF TECH

Water and fertilizer management method for whole growth duration of rice

The invention discloses a water and fertilizer management method for whole growth duration of rice. The method comprises the steps of 1 field management, wherein soil is turned at the depth of 30 cm to 40 cm, base fertilizer is applied at 150-200 kg / mu, irrigation and wet tillage are conducted, and after soaking is conducted for 1 d to 2 d, furrowing and transplanting are conducted; 2 transplanting-green returning period, wherein the state that a water layer in a field does not submerge uppermost completely-leafed auricles of rice seedlings is kept; 3 green returning-tillering period, wherein intermittent irrigation is conducted; 4 tillering-ear breeding period, wherein tillering fertilizer topdressing is conducted, and watering is conducted until the water layer height is 3 cm to 4 cm; 5 ear breeding-earing period, wherein earing fertilizer is sprayed on the leaf surfaces, and meanwhile intermittent irrigation is conducted; 6 filling period, wherein the earing fertilizer is sprayed on the leaf surfaces, intermittent irrigation is conducted, and water draining for field drying is conducted 5-7 days before harvesting. According to the method, the fertilizer and the water are scientifically managed, the fertilizer is regulated by the water, shallow and frequent irrigation is conducted, promotion and control are combined, qi is regulated by the water, roots are nourished by qi, leaves are protected by the roots, the yield is guaranteed by the leaves, therefore, the environmental conditions are improved, pathogenic bacterium reproduction and infection are controlled, the rice grows healthily and strongly, and the disease resistance is improved; in addition, the rice has the advantages of being high in effective tillering rate, long in ear and high in setting rate in the grow period.
Owner:JIANGSU SHENHE AGRI SCI & TECH DEV

Method and system of cooperative VOC biological treatment

The invention belongs to the technical field of domestic waste gas treatment, and discloses a method and system of cooperative VOC biological treatment. The method of cooperative VOC biological treatment comprises the following specific operation steps: (1) performing first treatment on VOC exhaust gas, spraying circulating water in the process of the first treatment, and injecting a nutrient solution into the circulating water while the circulating water is sprayed; and (2) performing secondary treatment on the treated VOC exhaust gas, and performing intermittent water spraying during the secondary treatment. The system of collaborative VOC biological treatment comprises a cooperative biological treatment system, a circulating spraying device and an intermittent irrigation device, and thecooperative biological treatment system comprises a biological drip filter unit and a biological filter unit which communicate with each other; and the biological drip filter unit is connected with the circulating spraying device, the biological filter unit is connected with the intermittent irrigation device, and the circulating spraying device is also connected with a nutrient solution injection device. Through the method and system of cooperative VOC biological treatment, saving of land occupation, reduction of investment, no secondary pollution and saving of a lot of operation cost achieved.
Owner:北京博阳环拓环保科技有限公司

Method for repairing beach wetland by papermaking wastewater irrigation

The invention discloses a method for irrigating and restoring a mudflat wetland through utilization of papermaking wastewater. The method comprises that: a first end wall and a second end wall are arranged on ground; water guide vertical walls are arranged between the first end wall and the second end wall; one end of the water guide vertical wall with an odd number is fixedly connected with the inner side of the first end wall, while the other end is the dissociative end; one end of the water guide vertical wall with an even number is fixedly connected with the inner side of the second end wall, while the other end is the dissociative end; the ground of the flow deflection part of the dissociative end of the water guide vertical wall which the papermaking wastewater flows through is provided with a filtering material rectification and distribution region; the papermaking wastewater is guided from the first water guide vertical wall and the second water guide vertical wall; the irrigation depth h is between 8 and 15 cm; hydraulic load is between 2 and 4 cm / d; an intermittent irrigation mode of each water inlet and irrigation between 6 and 10d and draining and dry-falling between 2 and 4d is adopted for irrigation; after wastewater is used for irrigation, the contents of Cl<-> and Na<+> of soil are reduced; the contents of total nitrogen, total phosphor and organic matter are improved; the respiratory intensity of the soil is improved; and the activity of microorganism of the soil is substantially improved.
Owner:BINZHOU UNIV

Ratoon rice directly-seeding cultivation method

The invention discloses a ratoon rice directly-seeding cultivation method. The method comprises the following steps: (1) selecting a medium and early-maturing fine variety; (2) finely preparing the soil; (3) directly seeding main rice crop by a precision machine at the appropriate period of the main rice crop from the last ten-day period of March to the first ten-day period of April, and arrangingthe heading and flowering phase of the ratoon rice ratooning season at the latest in the middle of September; (4) carrying out intermittent irrigation; (5) carrying out fertilization in the main cropping season; (6) applying a seedling fertilizer to the ratooning season; (7) harvesting the main rice crop by machine, wherein a low-pile machine harvesting mode is adopted for the main rice crop of ashort growth period variety and a high-pile machine harvesting mode is adopted for the main rice crop of a long growth period variety; (8) treating diseases and pests; and (9) removing weeds. According to the method, the agricultural production labor intensity is greatly reduced, the problems that the labor intensity for rice production is high and the benefit is low are solved. According to themethod, the rice production cost is reduced by 400 yuan per mu, and the labor for rice production is reduced by 70%, so that the production profits of the rice can be more than 500 yuan per mu, and the rapid improvement of the production mechanical level of the regenerated rice is realized.
Owner:福建省农业科学院水稻研究所

Lodging-free cultivation method of super high-yield rice

The invention discloses a lodging-free cultivation method of super high-yield rice. The lodging-free cultivation method of super high-yield rice comprises the following steps: (1) carrying out soil preparation, namely digging a plurality of gullies in the conventional paddy field, wherein the gullies are 20-35cm in depth and 30-55cm in width, a root-inducing and seedling-growing fertilizer is continuously stirred into the dug soil to form fertilizer soil during gulley digging, the fertilizer soil is laterally deposited between ditches to form long ridges at intervals, and the long ridges are 15-30m in width; (2) planting, namely planting rice seedlings on the long ridges by properly adjusting according to different variety densities; (3) irrigating, namely irrigating water into the gullies after transplanting rice seedlings, protecting the seedlings in deep water for 2-3 days after rice seedlings are transplanted, wherein the water in the gullies is 22-37cm deepth, the water in the gullies is 18-32cm in depth in a returning green stage and a tillering stage; drying the paddy field for 7-10 days at the beginning of July, carrying out intermittent irrigation by using phreatic water in the middle stage, the water in the gullies is 16-29 cm in depth in heading stage, intermittently drying and wetting after full heading, and draining water after yellow ripening stage; (4) harvesting, namely harvesting and threshing after ripening, and finally storing the rice in a warehouse. The lodging-free cultivation method of the super high-yield rice has the characteristics of high yield increase, no lodging and high quality of rice.
Owner:韦守国

Device for stool drainage

The invention is directed to a device for sealing a natural or artificial opening of the large intestine, or the rectum, of a patient, and for occluding same, and / or for removing stool therefrom, particularly for continuous, and / or intermittent irrigation, preferably into an external, bag-like collection container, comprising an inflatable balloon with an approximately annular structure formed from a flat, everted tube section, wherein the outer layer of the everted tube section is provided with a radially enlarged region for insertion into the rectum, and has a region that is tapered relative thereto, and that remains at least regionally outside the rectum during use, the intrarectal balloon section having no functional or spatial connection to the transanal balloon section.
Owner:ADVANCED MEDICAL BALLOONS GMBH

Double-cropping rice planting method based on newly remediated paddy yield improvement

ActiveCN109964767AShort-term recovery and improvement of productionRestore production capacityRice cultivationGreen manureIntermittent irrigation
The invention belongs to the technical field of planting, in particular to a double-cropping rice planting method based on newly remediated paddy yield improvement. After farmland remediation, green manure returning to field and straw returning to field are adopted, efficient water and manure utilization of rice is promoted through intermittent irrigation and fertilization optimization, and therefore, it is achieved that the yield of double-cropping rice in newly remediated farmland is restored and improved in a short time.
Owner:江西省赣抚平原水利工程管理局

Water-saving irrigation method in rice planting process

PendingCN111587765ATake advantage ofImprove the effect of water level monitoringWatering devicesMachines/enginesWater requirementWater saving irrigation
The invention relates to a water-saving irrigation method in a rice planting process. The method comprises the following steps: step 1, before transplanting rice in a seedling stage, observing the water level depth in a field; step 2, from the seedling transplanting stage to a turning green stage, enabling the water layer depth in the field to be 20-30mm; step 3, after a tillering stage, observingthe water layer depth, in a monitoring device every day, in the field in a shallow water layer drying stage, and recording the water layer depth; and step 4, according to the recorded data, determining irrigation requirements according to the water layer depth conditions of the rice in each stage. According to the rice water-saving irrigation technology, a shallow humidity regulation and controlirrigation technology is carried out according to the physiological water requirement stage of the rice, three irrigation methods of shallow water irrigation, wetting irrigation and intermittent irrigation are scientifically combined together, and according to the water requirement characteristics and growth rules of the rice, the principles of seedling transplanting with thin water, water storageand living, tillering promotion with shallow water, field drying under conditions of sufficient seedlings, spike growing with shallow wetness, wetting type grouting, and yellow ripeness and drying are provided, and the upper limit of the water layer of the rice field and the lower limit of the soil water content of the rice root system are controlled, so that the water-saving irrigation technology for the rice can save water by 25%-40%.
Owner:河北稻宇农业开发有限公司

Cultivation method for enhancing lodging resistance of Yexiangyou series high-quality hybrid rice

The invention discloses a cultivation method for enhancing lodging resistance of Yexiangyou series high-quality hybrid rice. The cultivation method comprises the following steps of: processing seed coatings, carrying out printed positioning sowing, carrying out root manure layered semi-dry rice seedling culture, carrying out proper-depth machine rice seedling transplantation, carrying out one-time balanced fertilizer application, carrying out intermittent irrigation, carrying out middle-period and later period two-time biochemical regulation and control, carrying out comprehensive preventing and curing of diseases, insect pests and weeds, carrying out moderate early harvesting, carrying out proper-temperature drying and machine storing and the like. The cultivation method disclosed by the invention clarifies a synergistic effect and an implementation method of the nitrogen, phosphorus and potassium one-time balanced fertilizer application, calcium, silicon and magnesium assorted fertilizer application and the middle-period and later period two-time biochemical regulation and control for controlling the lodging of the Yexiangyou series high-quality hybrid rice, so that the per unit yield of the high-quality hybrid rice is improved, and the lodging resistance capacity is obviously enhanced.
Owner:信隆现代农业科技有限公司

Water quality detection, separation and recycling system and method

A water conservation and recycling system where an integrated automated system comprising a sensor housing with at least one sensor, a diverting valve and controller, the system used to separate water based on quality parameters (for example, temperature, acidity (pH), dissolved oxygen, electrical conductance and / or turbidity). In one example, physical bio-filtration is used to remove debris particles from clean water and ultraviolet light and ionization is used for bacterial eradication of clean water. Separated clean water is stored and recycled for agriculture and toilet purposes resulting in up to 40% reduction in residential and commercial water consumption. Municipal water supply line pressure is used to pressurize storage tanks to provide intermittent irrigation water supply.
Owner:UPADHYAY SHIVANI +1

Field management method for weakly basic rice

The present invention provides a field management method for weakly basic rice to effectively increase the yield of the weakly basic rice per mu. The field management method for weakly basic rice includes a water layer management method including: a seedling establishment stage at which the field water level is kept at 2 / 3 of seedling bodies to ensure that centers of seedlings are not flooded; a tillering stage at which the field water level is kept at 2.8-3.2 cm; a jointing-booting stage at which the field water level is kept at 3-5 cm; and a heading and grain formation stage at which a 3-5 cm shallow water layer is intermittently irrigated, wherein intermittent irrigation means that the 3-5 cm shallow water layer is irrigated once and is naturally drained until there is water in tracks,then, the 3-5 cm shallow water layer is irrigated once more, and the operation is repeated in such a way; and the heading and grain formation stage includes a filling stage, a milk-ripe stage and a dough stage, wherein at the filling stage, the time interval between the operation that the water is naturally drained until there is water in the tracks and the operation that the 3-5 cm shallow waterlayer is irrigated once is 1-2 d, and at the milk-ripe stage and the dough stage, the time interval between the operation that the water is naturally drained until there is water in the tracks and theoperation that the 3-5 cm shallow water layer is irrigated once is 3-5 d.
Owner:上海北禾水土环保科技有限公司

Method for reducing non-point source pollutants of farmland

The invention discloses a method for reducing non-point source pollutants of a farmland. The method comprises the following steps: S1, reducing nitrogen and phosphorus loss of the farmland through adopting a manner of combining intermittent irrigation and split application; S2, enabling water drained from the farmland to flow into an optimized water drainage grass ditch and filtering; S3, enabling water drained from the water drainage grass ditch to flow into a pond wetland and precipitating and absorbing the pollutants by water plants; S4, enabling water drained from the pond wetland to flow into a backbone ecological ditch and purifying the water drained from the wetland again.
Owner:GUANGXI COLLEGE OF WATER RESOURCES & ELECTRIC POWER

Automatic mechanical device for integrating sowing and irrigation of crops

The invention relates to the technical field of agricultural production equipment, in particular to an automatic mechanical device for integrating sowing and irrigation of crops, which comprises a platform, a connecting frame is fixedly connected to one side of the platform, a traction sleeve is arranged at the other end of the connecting frame, wheels are arranged at the bottom of the platform, a water tank and a plurality of supporting legs are fixedly connected to the top of the platform, the tops of the plurality of supporting legs are fixedly connected with the same seed box, two limiting pipes which are symmetrically arranged fixedly penetrate through the top of the platform, and V-shaped plates are fixedly connected to the interiors of the limiting pipes through limiting adjusting mechanisms. According to the automatic mechanical device, the linked intermittent irrigation and sowing integrated structure is arranged, sowing is carried out after watering, multiple agricultural production procedures are completed through one-time operation on the premise that the seed sowing quality is guaranteed, and the purposes of reducing manpower and material resource consumption, reducing production time, reducing water resource waste, reducing seed rotting and stuffy seed conditions and improving the seed germination rate are achieved.
Owner:WENZHOU VOCATIONAL COLLEGE OF SCI & TECH

Water-saving irrigation system for slope water and soil maintenance

The invention discloses a water-saving irrigation system for slope water and soil maintenance, which comprises a side slope, irrigation pipelines, a water discharge tank, a shielding assembly and a control assembly, wherein the three irrigation pipelines are laid on the slope of the side slope, the water discharge tank is arranged at the top end of the side slope, the shielding assembly is arranged in the water discharge tank, the control assembly is arranged on the front face of a partition plate, a water collecting tank is formed in the bottom of the side slope, a desilting pool is arranged on one side of the bottom of the water collecting tank, a rotating motor is started, the control assembly is used for driving the shielding assembly to move, the control assembly controls a baffle to shield a water discharge port, and therefore intermittent water drainage irrigation operation is conducted. The water-saving irrigation system has the beneficial effects that the water drainage tank is arranged at water source receiving ends of the irrigation pipelines, the shielding assembly and the control assembly are arranged in the water drainage tank, and the shielding assembly is controlled through the control assembly, so that the shielding assembly can intermittently shield and open the water drainage port, intermittent irrigation is achieved, and a good water-saving irrigation effect can be achieved.
Owner:NANCHANG INST OF TECH

Saline-alkali soil irrigation and drainage ecological improvement method

The invention relates to a saline-alkali soil irrigation and drainage ecological improvement method, comprising two parts, namely a composite gridded underground drainage brine discharging system and a water-saving irrigation washing system. The composite gridded underground drainage brine discharging system is formed by the way that a gridded drainage brine discharging network composed of a water absorption tube (branch drain pipe) and a blind drain is arranged below a saline-alkali soil layer, and salty underground water and washing influent seepage are discharged outside an improved regionby virtue of two paths, namely the blind drain, the water absorption tube (the bran drain pipe), a collector pipe (main drain pipe) and the water absorption tube as well as the collector pipe; and the water-saving irrigation washing system is in charge of washing salinity in soil by adopting one or more than two measures of partition irrigation, estuarine rotation irrigation and intermittent irrigation. By adopting the method provided by the invention, the saline-alkali soil can be uniformly and efficiently improved, water resource can be saved, improvement time can be reduced, and better social, ecological and economic benefits can be achieved.
Owner:TIANJIN TEDA GREEN GRP CO LTD

A self-balancing paddy field raking paddle leveling machine

ActiveCN109220014BGuaranteed free spinsConsistent rotary tillage depthSpadesAgricultural machinesWater useRotational axis
The invention discloses a self-balancing paddy field raking and leveling operation machine, which comprises a rotating bracket and a raking machine. Suspended and connected with the tractor, the middle part of the front and rear beams below the rotating bracket is welded with a rotating shaft. The advantages are: the self-balancing paddy field raking machine can automatically adjust the left and right horizontal inclination angle of the raking machine during operation, so that the rotary tillage depth is not affected by the unevenness of the field surface, and can complete the raking, stubble burying and leveling operations in one go, reducing the need for tractors. Rolling of paddy fields. After the operation, the height difference of the field is small, which can improve the utilization rate of water resources, greatly save irrigation water, facilitate intermittent irrigation, achieve precise water use, and the irrigation efficiency can reach 90%. At the same time, the phenomenon of fertilizer loss and defertilization is reduced, and the utilization rate of chemical fertilizers is increased by more than 10%. Fundamentally protect the ecological environment of the entire countryside and control the discharge of harmful substances.
Owner:HUAIHAI INST OF TECH

A cultivation method for deep application of fertilizers to improve yield and nitrogen utilization rate of no-tillage mid-season rice

The invention discloses a fertilizer deep application and cultivation method for increasing the no-tillage middle-season rice yield and improving the nitrogen use efficiency. The method comprises thesteps of 1, field pretreatment, wherein an amides systemic herbicide is applied after preceding crops are harvested and before seedling slinging; 2, dry rice-nursery, wherein hybrid rice is selected,seeds are aired on a clear day before sowing, and the seeds are placed in flowing clear water and soaked in the daytime and are fished out, spread and aired in the night; 3, fertilizer deep application, wherein deep application is conducted on a base fertilizer, broadcasting is conducted on an additional fertilizer, the base fertilizer is a nitrogen-phosphorus-potassium mixed fertilizer, deep application can also be conducted after nitrogen, phosphorus and potassium fertilizers are mixed, and the later additional fertilizer is mainly urea; 4, filed seedling slinging, wherein the fertilizer deep application is completed, irrigation field steeping is conducted before seedling slinging; 5, water management, wherein at the seedling stage, a shallow-water layer is kept, at the tillering stage,intermittent irrigation is conducted, and at the yellow ripening stage, air-drying is conducted after the dough stage; 6, filed management. The fertilizer deep application and cultivation method for increasing the no-tillage middle-season rice yield and improving the nitrogen use efficiency is easy to conduct and convenient to operate, effectively reduces ammonia volatilization and nitrogen loss of a no-tillage rice field, improves the nitrogen use efficiency of the no-tillage rice field, and increases the yield of the no-tillage rice field.
Owner:HUAZHONG AGRI UNIV
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