414 results about "Fertigation" patented technology

A system and a method of computer controlled irrigation and fertigation composed of one or more sensors positioned in order to quantify the amount of water and/or nutrients that a plant is consuming. By controlling the fertigation, the plant or a part thereof, has improved yield and quality,

The invention provides an intelligent water-saving fertigation system and method. The intelligent water-saving fertigation system comprises a management control unit, a core processing unit, a soil environment detecting unit, a water detecting unit, a fertilization control unit and an irrigation control unit, wherein the management control unit is used for receiving a remote/local instruction of a manager and forwarding the instruction to the core processing unit; the core processing unit is used for sending a state parameter collecting instruction to the environment detecting unit and the water detecting unit; the soil environment detecting unit is used for obtaining the soil environment information of an irrigation field; the water detecting unit is used for obtaining the water quality information and water pressure information of water used for fertigation; the fertilization control unit is used for controlling the type and the using amount of fertilizer dissolved in water used for irrigation; and the irrigation control unit is used for filtering the water used for fertigation and adjusting the irrigation amount and the water pressure of an irrigation pipeline. The intelligent water-saving fertigation system can achieve the functions of energy and water conservation, remote control, unattended operation, automatic alarming, fertigation instruction, geographical information query and browsing, and the like.

The invention provides a bypass automatic fertigation device which comprises a mixed fertilizer unit, an EC/PH detection unit, a control unit and an execution unit; the mixed fertilizer unit comprises a plurality of fertilizer injection pipelines, a pH regulating pipeline which are parallelly connected with the fertilizer injection pipelines, and water inlet pipelines and mixed fertilizer pipelines which are respectively arranged on the front end and the rear end of the parallel pipelines; the EC/PH detection unit is used for detecting the EC and the pH of the mixed fertilizer solution in the mixed fertilizer pipelines; the control unit controls the proportion of the fertilizer solution in the mixed fertilizer pipelines by respectively controlling the fertilizer injection and the conditioning solution injection of the fertilizer injection pipelines and the ph regulating pipeline, so that they meet the set values; and the execution unit responds to the fertilizing instructions of the control unit, and leads the fertilizer solution in the mixed fertilizer pipelines into a farmland irrigation network. The device can precisely control the fertilizing concentration, the fertilizing proportion and the fertilization in the fertilizing process, and can be simply and quickly connected with an irrigation system with a certain scale and an irrigation head with a certain size, so as to reduce the equipment cost.

The invention relates to a system and method for integrally and intelligently controlling water and fertilizer in a field based on multi-source information fusion. The system comprises a weather forecast inquiry receiving subsystem, a weather real-time data collecting control subsystem, a cloud computing platform, a central control unit, an irrigation and fertilization control subsystem, an irrigation and fertilization state monitoring system and an online fault detection system. The system provided by the invention is an automatic control system integrated with the functions of weather forecast inquiry, crop cloud computing platform inquiry, farmland weather real-time collection, solid fertilizer rapid solution, mother solution real-time monitoring regulation, irrigation and fertilization state monitoring, online fault detection, irrigation and fertilization and remote intelligent control. According to the invention, the factors, such as, weather forecast, cloud computing platform, weather real-time collection and growth vigor of the crops in the growth process can be comprehensively considered, corresponding irrigation and fertilization decisions can be made, and thus precise irrigation and precise fertilization can be accurately realized; and the growth vigor of the crops can be described in real time, and the irrigation and fertilization can be performed according to the growth vigor of the crops.

A method and components for the hydroponic cultivation of plant materials. The components include confined containers, a confined irrigation/fertigation system, field and plant sensors, a plant support system, and an overcovering structure. Each of these components used singularly or in combination with each other enhances the growth and yield of plant material decreases the associated costs of cultivation, and decreases adverse environmental impacts.

The invention provides a biogas slurry fertigation system, which can effectively utilize biogas slurry as an organic liquid fertilizer, thus realizing reclamation of waste and performing aftermanuring on organic crops. The fertigation system comprises a biogas slurry sedimentation tank, a filter and a drip irrigation device, wherein the biogas slurry sedimentation tank is filled with unfiltered biogas slurry stock solution; the filter is composed of a biogas slurry filter and a water filter; and biogas residue in the biogas slurry stock solution in the biogas slurry sedimentation tank sedimentates at the bottom part of the biogas slurry sedimentation tank, a water pump is used to feed the biogas slurry after sedimentation to the biogas slurry filter for filtering via a delivery pipeline, solid matters capable of blocking the drip irrigation device in the biogas slurry are filtered out, and the filtered biogas slurry and the clean water which is obtained after being filtered by the water filter and can not cause the blockage of the drip irrigation device are mixed at a required ratio and then fed in the drip irrigation device to perform drip irrigation on the crops.

The invention provides an intelligent precise fertigation device with real-time nutrient proportioning and a control method. The device comprises a user operation unit, a fertilization scheme generating unit, a sensor data collection unit, an intelligent fertilizer preparation unit and a water-fertilizer integral irrigation unit, wherein the user operation unit is a touch control screen and can beused for account registering login; after the login is successful, a user selects or inputs basic information such as the geographic position, soil property, crop types, crop varieties, plant date, land parcel area, irrigation modes and target yield; the site irrigation data can be displayed and checked; the automatic irrigation in turns of different crops in a plurality of land parcels can be completed through real-time fertilizer proportioning. The nutrient real-time proportioning according to different crop types, different crop production periods and soil nutrient contents can be realized; the precise fertilization is realized; the water and the fertilizer are saved; the time and the labor are saved; the fertigation efficiency is improved; good growth environment is provided for crops.

An agricultural fertigation method includes the in situ manufacture of one or more fertilizers within the irrigation upstream of the agricultural field being irrigated. Co-reactant raw materials, namely sulfuric acid, phosphoric acid, nitric acid, potassium hydroxide, urea, ammonium hydroxide, ammonia, calcium nitrate and/or magnesium nitrate, are intermixed with each other and with the stream of the flowing irrigation water. The stream of flowing irrigation water dampens the resultant dissolution and reaction exotherms. A system wherein raw materials are efficiently fed to the irrigation system main line or a side-arm reactor efficiently implements the method.

The invention discloses a tower-type stereoscopic cultivation frame and a tower-type stereoscopic cultivation device. The tower-type stereoscopic cultivation frame comprises at least two vertical supporting tubes; a plurality of transverse planting tubes are arranged from top to bottom among the vertical supporting tubes; the transverse planting tubes are of tubular body structures with openings along the axial direction. The bottom portion of the transverse planning tubes is covered by an arc plate; the inner side of the arc surface of the arc plate forms a drainage channel with the inner sides of the arc surfaces of the bottom portions of the transverse planting tubes; and the drainage channel is communicated with the drain holes reserved on the vertical supporting tubes. The transverse planting tubes incline a certain angle relative to the horizon so as to facilitate drainage of redundant irrigation water and nutrient solution in the tubes. Stereoscopic cultivation systems include a fertigation system and a water storage system except the stereoscopic cultivation frame. Operation cost of stereoscopic cultivation is greatly reduced; the tower-type stereoscopic cultivation frame and the tower-type stereoscopic cultivation device are easy to accommodate, low in cost and capable of facilitating promotion and application of the stereoscopic cultivation.

The invention relates to a pesticide-added fertilizer containing avermectins and oligosaccharide and a preparation method thereof. The pesticide-added fertilizer which is used for preventing and controlling underground pesticides and wireworms comprises the following components in percentage by weight: 0.1 to 1 percent of avermectins, 0.1 to 1 percent of oligosaccharide, 5 to 20 percent of macroelement fertilizer and 0.5 to 2 percent of microelement. The fertilizer is mainly processed into granules and soluble powder for preventing and controlling the underground pesticides and the wireworms of the corn, wheat, soybean, peanut and vegetable crops in the modes of seed dressing, spraying, seed fertilization, fertigation, leaching fertilization and the like and has the effect of increasing the crop yield.

The invention relates to the technical field of agricultural production and provides a water-fertilizer integrated irrigation system control method and a water-fertilizer integrated irrigation system.The control method includes steps: S1, acquiring crop image information, soil information of a crop growth area and meteorological environment information of the crop growth area, and analyzing moisture supply conditions, fertilizer supply conditions and growth and development stages of crops on the basis of a ResNet-101 deep network model; step S2, controlling operation of a water-fertilizer integrated irrigation device on the basis of the moisture supply conditions, the fertilizer supply conditions and the growth and development stages. The control method has advantages that automatic, accurate and real-time determination of the moisture supply conditions, the fertilizer supply conditions and the growth and development stages of the crops can be realized aiming at different crops, and accordingly irrigation and fertilization as needed can be realized aiming at different crops, the problem of traditional experience based irrigation and fertilization decision making is effectively avoided, and real-time irrigation and fertilization as required can be realized.

The invention relates to a fertigation control system for planting crops. The fertigation control system comprises a fertilizer container, a water source device, a control system and the like, wherein the control system comprises a controller and control branches, the controller is used for respectively controlling startup devices of the fertilizer container and the water source device by the control branches, wherein a fertilizer outlet pipe of the fertilizer container is converged with a water outlet pipe of the water source device and is then branched into a plurality of irrigation pipes communicated to an irrigation region. The fertigation control system disclosed by the invention can provide a fine fertigation scheme according to program control and soil situations and growth requirements of different stages of crops, is capable of sufficiently absorbing moisture and nutrients and cannot cause soil pollution.

The invention belongs to the field of fertilizer, and particularly relates to slow release fertilizer comprising fly ash gel and a preparation method of the slow release fertilizer. The slow release fertilizer comprising fly ash gel is characterized in that fly ash which is solid waste of a fuel factory is taken as the raw material, modified through ion beam irradiation, and excited by an active exciting agent to form a gel solution with a three-dimensional network structure; and in a gel forming process, the surface energy of the fly ash is increased, the adsorbability is enhanced, a large amount of chemical fertilizer can be adsorbed after the fly ash is mixed with a chemical fertilizer solution, the chemical fertilizer is fixed in the network structure of the gel after adsorption, so that the release and decomposition speed of the chemical fertilizer is effectively slowed, and the slow release purpose is achieved. The slow release fertilizer can be dispersed in an aqueous solution to form the gel and can be used for irrigation and fertilization with water, water and fertilizer integration is facilitated, the raw material source is wide, the production technology is simple, and the slow release fertilizer has positive significance on increase of crop yield.

The invention discloses an irrigating and disinfecting integrated testing device. The irrigating and disinfecting integrated testing device mainly comprises a centrifugal pump, a pressure sensor, a flow sensor, an ion concentration sensor, a control system and the like, has comprehensive functions of fertigation, micro-sprinkling and dropping irrigation load simulation, water and fertilizer parameter detection, fertilizer absorbing channel parameter detection, backflow channel parameter detection and the like; furthermore, on the aspects of irrigation, nutrient solution dynamic preparation, nutrient solution disinfecting and the like, the detection of nutrient solution nutrient iron concentration information is combined effectively, therefore the high-precise nutrient solution dynamic preparation and irrigated area load simulation are realized very well, the requirements on a test system during a research and development process of a fertigation are satisfied. The irrigating and disinfecting integrated testing device is applicable for research of facility agriculture precise irrigation and nutrient solution accurate preparation technology and development of system.

The invention provides an irrigation and fertilization system with fertilizer water branching control. The system comprises three sets of pipelines namely a water supply pipeline, a fertilizer supply pipeline and a gas supply pipeline, wherein the fertilizer supply pipeline comprises a fertilizer supply device, the fertilizer supply device is connected with a fertilizer supply main pipe, and a fertilizer supply branch pipe is arranged on the fertilizer supply main pipe; the gas supply pipeline comprises a gas source device, the gas source device is connected with a gas supply main pipe, a gas supply branch pipe is arranged on the gas supply main pipe, the gas supply branch pipe is connected to the top of a material batching bucket, and a material batching branch pipe is inserted into the material batching bucket; and the material batching branch pipe, the water supply branch pipe and the fertilizer supply branch pipe are combined in a field branch pipe, the field branch pipe extends to field facilities, and the field facilities comprise a drip irrigation branch pipe, a water spray and mist spray branch pipe and a micro-spray branch pipe. The irrigation and fertilization system provided by the invention can meet the unified irrigation and fertilization requirements of modern agricultural parks, and can meet the individual application requirements of the parks so as to ensure that different users can more flexibly control the periods and quantities of irrigation and fertilization according to the water and fertilizer demand characteristics of different crops and different crop growth stages, can apply different fertilizers, and can freely apply the fertilizer in farms after freely batching.

The invention discloses a fertilizer additive, a fertilizer composite containing the additive and application of the fertilizer composite and particularly relates to a water soluble fertilizer additive, a water soluble fertilizer composite containing the water soluble fertilizer additive and application of the water soluble fertilizer composite. The water soluble fertilizer additive comprises, by weight, 10 parts of urea phosphate, 1-2 parts of guar gum, 0.5-1 part of polyacrylamide, 0.5-1 part of potassium polyacrylate and 0.1-0.5 part of sodium of polyaspartic Acid. The water soluble fertilizer additive can effectively reduce the frequency of the phenomenon that a water dropper is blocked when water soluble fertilizer containing the water soluble fertilizer additive is applied to fertigation, and reduce the probability of the phenomenon that crops do not absorb the obtained water soluble fertilizer. Meanwhile, the water soluble fertilizer additive can effectively solve the problem that the use ratio of phosphorus fertilizer in the water soluble fertilizer is low.

The invention discloses a method for modifying the Tibet plateau alpine meadow grassland into mowing grassland. The method for modifying the Tibet plateau alpine meadow grassland into the mowing grassland comprises (1) a step of selection of the grassland, (2) a step of flattening of the ground, (3) a step of selection of resowing grass seeds and a mixing ratio, (4) a step of turf cutting and resowing, (5) a step of determination of fertilizer type and fertilizer amount, (6) a step of determination of irrigation method and irrigation amount, (7) a step of management, and (8) a step of mowing and harvest. The method for modifying the Tibet plateau alpine meadow grassland into the mowing grassland has the advantages that comprehensive modification measures can promote the growth of forage grass, especially irrigation and fertilization can promote the nutritional growth of the forage grass and restrain reproductive growth, so that the forage grass is tender in stalk and rich in foliage. Mowing can control the growth of noxious weeds, promotes compensatory growth or over-compensatory growth of fine forage. Through comparison, the height of a grass layer, and the yield and the quality of forage grass are all largely improved.

The invention discloses a water and fertilizer integration four-control irrigation fertilizing method. The method is composed of time control of fertigation, control of fertilizing amount, control of nutrient proportion and control of soil humidity. The method aims at moisture requirement and root depth of different crops for realizing accurate control of the soil humidity and irrigation depth, can limit the irrigation water and a fertilizer in a root zone scope, can avoid loss of volatilization and seepage due to excess fertilization, and realizes high efficiency utilization of water and fertilizer. The method can realize accurate fertilization and saves labor. The fertilizing control is carried out according to the crop nutrient requirement rules, and the method can control the time and space of the fertigation in scientific and reasonable mode, can guarantee good growth of crops, realizes high yield and stable production, can control the environment pollution due to fertilizer loss and volatilization due to excess fertilization, and mitigates the soil hardening and continuous cropping obstacles.

A water and fertilizer integrated system comprises a fertigation device, an irrigation water information acquisition module, a weather and farmland information acquisition module, a control device, and an irrigation remote information monitoring platform; the irrigation water information acquisition module is arranged in the fertigation device to acquire water and fertilizer information from the fertigation device; the weather and farmland information acquisition module is positioned in a land where crops locate so as to acquire weather information and soil information of the land whether crops locate; the irrigation water information acquisition module is electrically connected with the weather and farmland information acquisition module and the control device; the control device is alsoelectrically connected with the fertigation device; the control device is also in wireless communication connection with the irrigation remote information monitoring platform; the irrigation water information acquisition module comprises an EC (electrical conductivity) sensor, a PH sensor and a flowmeter; the EC sensor and the PH sensor are positioned at a water outlet of the fertigation device soas to detect EC value and PH value of irrigation water. The invention also provides an irrigating and fertilization method of the water and fertilizer integrated system.