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646 results about "Crop production" patented technology

Fertilizer special for tea trees

The invention applies to the tea crop production, which can improve the soil structure and provide adequate moisture, oxygen and nutrition to improve the yield and quality in tea crop cultivation. The invention relates to a liquid fertilizer containing microorganisms, organic matters and inorganic matters. The fertilizer adopts biological technology and electrolysis technology which complement each other, takes micro-organisms and mineralized substances as additive, as well as combines with nutritional formula (nitrogen, phosphorus, potassium, sulfur, magnesium, calcium, silicon, boron, zinc, iron, molybdenum, bacterial protein, amino acid, humus, plant nucleic acid, B vitamins, active enzymes and unknown factors which promote crop growth), so as to provide adequate nutrition for crops and improve soil to make the soil conducive to tea crop cultivation. Through biotechnology, the micro-organisms in a dormant state are added to the fertilizer and are activated under favorable environmental conditions to decompose the animal and plant residues, pesticides, fertilizers, heavy metal residues and minerals in the soil so as to change the contents of nitrogen, phosphorus and potassium. Through electrolysis technology, the mineralized substance additive enables the soil to produce a chain reaction to moisture and oxygen supply, so as to gradually change the ion charge in the soil, increase the soil oxygen supply amount, improve the moisture infiltration capacity and strengthen the conditions for microbial activities.
Owner:XINJIANG PUDESHI BIOLOGICAL

Intelligent measurement and control system of greenhouse based on internet of things

InactiveCN102789222AReflect real-time statusScientific planting decision-making basisTotal factory controlSimultaneous control of multiple variablesEngineeringCrop production
The invention relates to an intelligent measurement and control system of a greenhouse based on internet of things, comprising at least one set of monitoring modules and a central control system. The monitoring modules are connected with the central control system, and the central control system is connected with a user terminal through a remote interactive module. Each monitoring module comprises an environment induction module and an environment control module, wherein the environment induction module comprises a temperature and humidity sensor, a light sensor and a pyroelectric infrared sensor, and the environment control module comprises a heater, a humidifier, a fan and respective execution unit. The intelligent measurement and control system also comprises a camera which is connected with a gateway. Compared with the prior art, the intelligent measurement and control system of the greenhouse has the advantages that automatic information detection and control are realized in the greenhouse, the image monitoring of the production environment and real-time acquisition of growth images of plant leaves and the like are realized by utilizing the video network technology, the real-time state of the crop production is intuitively reflected, and more scientific cultivating decision accordance can be provided for farmers comprehensively.
Owner:SUZHOU CHIEN SHIUNG INST OF TECH

Method for reducing content of cadmium in middle rice

The invention discloses a method for reducing the content of cadmium in middle rice. The method includes the following steps that after middle rice of the first year is harvested, middle rice straw is returned to the field directly, and tillage is conducted so that the middle rice straw can be evenly mixed with soil; hyperaccumulation plants are planted in a paddy; after the hyperaccumulation plants are removed from March to May in the second year, soil heavy metal passivator is scattered on the surface of soil of the paddy; tillage is conducted, and base fertilizer is applied 3-5 days later; tillage is conducted, and rice is transplanted; during planting of rice, a foliar resistance control agent is sprayed in the later tillering stage and the booting stage of rice respectively, wherein spraying time interval is 5-10 days; field drying is conducted in the later tillering stage, natural drying is conducted in the maturation stage, and flooding irrigation is conducted in other development stages. According to the method, crop production and straw resource utilization are not affected, the dual targets of reducing the paddy soil cadmium content and reducing the rice cadmium content are achieved under the combined action of plant extraction, soil passivation, foliar resistance control and water management, and effects are more remarkable compared with other combination technologies.
Owner:HUNAN YONKER ENVIRONMENTAL PROTECTION RES INST

Crop yield estimation method based on scale transformation and data assimilation

ActiveCN104134095AOvercoming scale mismatchHigh precisionForecastingData assimilationEstimation methods
The invention belongs to the field of agricultural remote sensing, and relates to a crop yield estimation method based on scale transformation and data assimilation and application of the crop yield estimation method to the guiding of crop production. The method comprises the following concrete steps that: 1, parameters are collected for completing spatialization of a WOFOST crop model; 2, a crop type distribution map and a purity percentage map of the crops to be tested are obtained; 3, TMLAI in a range of 30m is obtained; 4, a secondary scale conversion model is built, and a time sequence scale regulating LAI is generated; 5, the crop model error and the remote sensing observation error in a key phonological period of the crops to be tested are obtained; 6, a four-dimensional variation cost function is built, and an optimized crop model parameter is obtained; and 7, the per unit yield of the crops to be tested in a county region is output. The method provided by the invention has the advantages that the problem of scale mismatching between a remote sensing observation picture element and a crop model simulation unit is solved; the precision of a data assimilation model is improved; and the method is suitable for the crop yield estimation in the county region scale, and is particularly suitable for the winter wheat yield estimation in the county region scale.
Owner:CHINA AGRI UNIV

Fertilizer injector wing for disc openers

Disc openers (14) for use with an air seeder (10), or other no-till drill and the like, configured for seeding and fertilizing a field (G) for crop production are disclosed. The representative opener (14b) broadly includes a drawbar assembly (16), a disc assembly (18) including a coulter disc (20) and a gauge wheel (22), a seed boot (24), a fertilizer injector wing (26), a firming wheel assembly (28), and a closing wheel assembly (30). The inventive fertilizer injector wing (26) is configured for fixed attachment to the seed boot (24) and broadly includes a body (48), including an angled outboard portion (56), a toxic fertilizer injector (50), and a non-toxic fertilizer injector (52). The opener (14b) with the unique fertilizer injector wing (26) is configured to place the seed row (S) and the dedicated fertilizer band (DB) at an optimum geometric positional alignment relative to the seed row (S), in a single, low soil disturbing planting pass without disrupting the seed bed (BS). The inventive wing (26) enables a toxic charge (TC) of the fertilizer (N,P)—a charge containing the optimum nutrient package to sustain season long growth of the crop—to be placed sufficiently close to the seed (S) while minimizing soil disturbance so that weed growth and moisture loss are minimized and crop yield is maximized.
Owner:EXACTRIX

Nutritional type plant health amendment

The invention relates to liquid type plant nutritional amendment capable of effectively improving plant health and prepared by blending and chelating plant amino acid, chitosan and major elements, middle elements, trace elements, beneficial elements and rare earth elements which are essential for plants. The manufacturing technique is simple, the production cost is low, and no harmful gas or sewage water is generated in the production process. The product of the amendment does not contain artificially synthesized hormone, agricultural chemical substances or any microbial preparation, but can effectively provide about ten nutritive elements and beneficial elements required for the growth of the plants and organic nutrition capable of being directly absorbed and utilized by the plants, and can obviously improve the utilization factor of fertilizer, thereby reducing the investment thereof; at the same time, the product can remarkably improve the health condition of the plants, thereby effectively controlling the happening of physiological diseases and soil-borne diseases of the plants and reducing the investment of the agricultural chemicals. The product can be widely used for the production of various crops, and can increase the yield by about 10% to 30%; simultaneously, the product quality is obviously improved, and the cost conservation and the benefit increase are remarkable.
Owner:仲元(北京)绿色生物技术开发有限公司 +1

Brand-new greenhouse soilless culture-fog culture technology

The invention provides brand-new greenhouse soilless culture-fog culture technology, which is mainly soilless culture technology for utilizing an atomizing device to atomize a nutrient fluid into fog drops and directly spraying the fog drops on root systems of crops to provide the moisture and the nutrient needed by the growth of the crops. The crops are suspended in an airtight culture device (tank, box, barrel, pipeline, bed or triangular tower), the root systems are bared inside the culture device, and the nutrient fluid is atomized by the atomizing device and then is directly sprayed on the surfaces of the root systems. The invention provides a proposal which most effectively solves the water-gas contradiction of the root systems in all soilless culture technology at present (the technology can ensure that pores of the root systems, stems and leaves of the crops are easy to absorb the moisture and the nutrient needed by the growth, avoid the respiratory difficulty of the root systems in soil culture and water culture, furthest satisfy the water, fertilizer, air, temperature, and light needed by the growth of the crops, can make the crops quickly grow, and improve the yield by several times to tens of times; the technology also has no problems of the change of the pH value and the deterioration of the nutrient fluid during the production; the technology is easy for automation control and stereoscopic culture, and improves the utilization rate of greenhouse space; and the fog culture isolates the soil, minimizes the probability of plant diseases and insect pests, is easier to achieve pesticide-free culture, and realizes real nuisanceless crop production).
Owner:孙宗桂

Crop rotation matching and fertilizing method capable of controlling accumulation of rice heavy metal cadmium

The invention relates to a crop rotation matching and fertilizing method capable of controlling accumulation of rice heavy metal cadmium and belongs to the technical field of rice planting. The crop rotation matching and fertilizing method provided by the invention comprises the steps of 1) selecting cruciferae or leguminous crop with high sulphur content as a previous crop; 2) applying sulphur base fertilizer with sulphur ratio of 0.25-5.0kg/666.7m<2> when the previous crop is planted, or spraying 0.05-1.0% of sulphate for at least 1-3 times in a reproductive stage; 3) taking the previous crop as green manure, smashing or directly turning the previous crop into soil to be mixed with the soil 5-15 days before rice transplantation, and carrying out waterflooding on the transplanted rice seedling; and 4) repeating the steps 1)-3) year over year. The previous crop matching mode adopted in the invention roots in the traditional peasant production mode, sulphur fertilizer is also taken as the traditional farming measure, an operation process is simple, price is low, usage cost is low, the crop rotation matching and fertilizing method provided by the invention is universally applicable to heavily, medially and mildly cadmium-polluted rice field and crop production lands in China, and cadmium content in rice can be obviously reduced.
Owner:CHINA NAT RICE RES INST
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