1141 results about "Growing region" patented technology

The invention discloses an agricultural drought grade monitoring method based on a temperature vegetation drought index (TVDI). The method comprises the following steps of: 1, data preparation; 2, land surface temperature (LST) data reconstruction; 3, construction of crop plantation area normalized difference vegetation index-land surface temperature (NDVI-LST) feature space; 4, TVDI calculation; and 5, drought grade monitoring based on the TVDI. The invention brings forward an LST data reconstruction method based on multi-year background values and area fluctuation values, a cultivated land area multi-year NDVI-LST feature space is constructed for crops, the TVDI is calculated, a crop drought grade monitoring model based on a supervision classification idea is designed for drought grade remote sensing monitoring, the model can quite accurately reflect drought threat degrees of the crops under difference conditions in real time, and the method has great significance in monitoring, early warning and prevention of agricultural disasters.

The invention relates to a wheat special fertilizer. The wheat special fertilizer is a compound fertilizer or complex fertilizer containing nitrogen, phosphorus and potassium, wherein the weight ratio of N to P2O5 to K2O is (22-26): (18-20): (4-6). The wheat special fertilizer provided by the invention is reasonable in formula and has complete nutrients, a soil nutrient condition in North Henan is comprehensively considered, proportions of nutrient elements and raw materials of the fertilizer are selected, a ratio of nitrogen to phosphorus to potassium in the fertilizer is reasonable, nutrient releasing rate accords with wheat nutrient demanding rule in a wheat growing region in the North Henan, pertinency is high, operation is convenient, utilization rate of the fertilizer can be improved, application amount of the fertilizer can be reduced (application cost per Mu can be greatly reduced), yield can be increased, and crop quality can be improved; the wheat special fertilizer provided by the invention is applicable to a wheat producing area in North Henan, can be taken as a base fertilizer and can be applied in one step, once fertilizing on one batch of crops can be realized, and labour and time can be saved.

The invention discloses a tobacco stalk biochar soil conditioner capable of reducing the content of heavy metals in tobacco, improving the tobacco quality and improving the soil environment, as well as an improvement method for tobacco field soil. The tobacco stalk biochar soil conditioner is prepared by mixing the following raw materials in parts by weight: 40-60 parts of tobacco stalk biochar and 40-60 g of a passivant. The tobacco stalk biochar soil conditioner is easy to obtain raw materials, simple in preparation method and low in cost, can effectively reduce the content of heavy metals in tobacco, and can improve the quality of tobacco field soil; a large number of waste tobacco stalks generated in tobacco growing areas are adopted as the raw material, the resource recycling of waste materials is realized, the sustainable development of the tobacco industry is facilitated, and the tobacco stalk biochar soil conditioner is suitable for large-scale popularization and application in the field of tobacco growing.

The invention provides a fertilizer special for eucalyptus and a fertilizer application method. The fertilizer special for the eucalyptus is characterized in that: a eucalyptus base fertilizer consists of the following fertilizers in percentage by mass: 12 to 30 percent of nitrogen fertilizer, 55 to 70 percent of phosphate fertilizer, 8 to 20 percent of potassium fertilizer, 0.5 to 2 percent of boron fertilizer and 0.2 to 0.5 percent of zinc fertilizer; and a eucalyptus additional fertilizer consists of the following fertilizers in percentage by mass: 20 to 35 percent of nitrogen fertilizer, 50 to 65 percent of phosphate fertilizer, 10 to 30 percent of potassium fertilizer, 0.5 to 2 percent of boron fertilizer and 0.2 to 0.5 percent of zinc fertilizer. The fertilizer special for the eucalyptus contains nitrogen, phosphorus, potassium, boron, zinc, calcium and magnesium which are essential to the growth of eucalyptuses, reduces the waste of fertilizers caused by volatilization, loss and soil absorption and fixation, increases the utilization rate of the fertilizers, improves the growth amount and physiological disease resistance of the forest, develops the fast-growing advantage of the eucalyptuses, realizes the cultivation of short-cycle industrial raw material forest of the eucalyptuses, greatly shortens the circulation period of industrial raw material forest of the eucalyptuses, can also remedy mineral substances and nutrient components which are taken away by hacking the eucalyptuses at the same time to ensure the nutrient balance of the soil, brings maximum economic benefits with minimum fertilizer investment, and realizes the sustainable production of eucalyptus planting areas.

The invention provides a three-dimensional floating bed for purification of black and odorous rivers and a building method for the three-dimensional floating bed. A fence formed by PVC pipes and polyvinyl net is divided from top to bottom into an upper layer of floating plant growing region, a middle layer of artificial medium region and a lower layer of artificial medium region, wherein water plants with relatively developed root systems are planted on the upper layer; a biological membrane is formed on the middle layer by hanging pieces with rough surfaces and acts together with the root region of the plants on the upper layer, and organic substances are decomposed by oxygen generated by the plants; floating filler net is hung on the lower layer, and is filled with anaerobic bacteria according to different forming reasons of the black and odorous rivers, wherein the anaerobic bacteria are attached to an artificial hanging membrane, and domesticated to achieve high tolerance and degradation capability to pollutants. The three-dimensional floating bed provided by the invention has the advantages as follows: the manufacturing method of the floating bed is simple and convenient, the cost is lower, and the three-dimensional floating bed has an enhanced improvement effect on black and odorous rivers with high pollutant burdens.

The invention discloses a method for automatically extracting a paddy rice growing region based on a MODIS. The method is characterized by subjecting MODIS data to preprocessing such as index calculation, cloud mask, time series synthesis and the filtering; eliminating different types of typical ground features by using a threshold value method based on a normalized difference vegetation index; detecting a normalized difference vegetation index curve of a pixel element by using an extremum detection method to find out pixel elements likely to be the paddy rice, and performing paddy rice heading stage inversion; and finally extracting the paddy rice pixel elements by using a relationship between a land surface water index and the normalized difference vegetation index during a paddy rice transplanting period. The method can extract the paddy rice pixel elements accurately, has strong applicability in different regions, and can distinguish single-cropping rice and multi-cropping rice, and can provide fast and accurate paddy rice spatial distribution for land, mapping, and agriculture departments, and provides support for the scientific decision of different departments.

The invention relates to an ecological-floating-bed-based water body ecological restoration method which comprises the following steps: 1) establishing an ecological floating bed, adding biological activated carbon into each growing basket, and suspending rope-shaped carbon fiber ecological grass on the bottom of the floating bed; 2) growing emerging plants in a first aquatic plant growing region, wherein the emerging plants are composed of more than two of Canna generalis, Thalia dealbata, Iris wilsonii, calamus, purple loosestrife, bamboo reed, reed, cyperus altrnlifolius and Pontederia corda; growing a floating leaf plant or submerged plant in a second aquatic plant growing region, wherein the floating leaf plant is Ludwigia stipulacea, and the submerged plant is watermilfoil; and 3) reaping: carrying out periodical reaping according to the growth condition of the aquatic plants. The multiple ornamental plants and plant species with higher synergic decontamination capacity are reasonably blended and grown to establish a stable floating bed phytocommunity, thereby enhancing the synergistic actions among organisms, enhancing the restorability of the ecological floating bed for the water ecological environment, effectively enhancing the purifying effect of the ecological floating bed, and having stabler purifying effects.

The invention discloses a new medium for floating seedling raising of flue-cured tobacco, and relates to the flue-cured tobacco growing technology in the technical field of agriculture. The new medium is prepared by mixing 10 to 30 volume parts of peat, 30 to 50 volume parts of carbonized chaff, 10 to 30 volume parts of expanded pearlite and 20 to 30 volume parts of river sand. The new medium has the characteristics of reducing the influence on ecological environment, reducing production cost of the flue-cured tobacco and the like, and is suitable for floating seedling raising of flue-cured tobacco in flue-cured tobacco growing regions across the country.

The invention relates to a greening method for dredger fill, which is characterized by comprising the following steps of: reforming a planting zone; paving a percolating layer; paving a blind pipe, paving sand or stove ash on the periphery of the blind pipe, and leading to a drainage sump or a drainage ditch; blending and mixing 1/4 to 1/3 of cow dung or straw with the dredged dredger fill, and refilling; performing irrigating and saline drainage, namely irrigating by flood water to reduce the salinity of soil; and regulating and controlling a microzone, namely dredging a planting cave or a planting ditch, and blending and mixing original soil and river sand, the cow dung and turfy soil in a ratio of 4:2:2:1 to improve the environment of the microzone in which nursery stocks grow and improve the survival rate of the nursery stocks. The greening method has the advantages that: the percolating layer and the blind pipe are paved, and the original soil and the straw or the cow dung are blended and mixed to be refilled so as to improve the voidage and permeability of the dredger fill and provide the possibility for further desalination; the salinity of the soil can be reduced effectively by flood-water irrigating, so that saline water is discharged from the percolating layer and the blind pipe; the regulation and control of the microzone is favorable for desalination and salt restraint, and can provide the environment and nutrient substances which are required by plant growth, so that the survival rate of the nursery stocks is over 90 percent.

The invention relates to a biological chain constructing method suitable for improving the water quality of a shallow lake. In the method, biological combinations of different trophic levels are configured optionally, a shrimp-fish-shellfish-submerged plant biological chain with the ecological functions of reducing nutrient salt and controlling the growth of algae is constructed, and the water quality regulating and controlling functions of biological components are brought into full play on different levels. Through absorptive utilization and metabolic activity of nutrient elements, the nitrogen and phosphorus levels the lake are lowered effectively, the transparency of an aquatic plant growing region is increased, and the water quality is improved. The biological chain constructing method has the characteristics of economic efficiency, convenience, low energy consumption, remarkable water purifying effect, good economic benefit and short treatment period, and plays an important role in maintaining the health of a shallow lake ecological system for a long time.

The invention relates to a special fertilizer for peanut. The special fertilizer for peanut is a composite fertilizer or a compound fertilizer containing nitrogen, phosphor and potassium and has a mass ratio of N to P2O5 to K2O equal to 15-20:20-25:4-5. A formula of the special fertilizer for peanut is reasonable and comprehensive in nutrients, and takes in to integrated consideration on soil nutrition status in Huanghuaihai Region to carry out nutrient element proportion and selection of fertilizer raw materials; the special fertilizer for peanut has a reasonable ratio of nitrogen, phosphor and potassium, satisfies wheat fertilizer requirement rules in a peanut plantation zone in Huanghuaihai Region, has strong pertinency, is easy for operation and can raise fertilizer utilization rate, reduce fertilizer application amount (saving 50-60 yuan for per mu), increase output and improve quality of the crop. After usage of the fertilizer product, double kernel peanut is increased from an original 60-70% to more than 80%; and the special fertilizer for peanut has advantages of reducing agriculture investment, increasing peanut output and raising economic benefit.

The invention relates to a plant cultivation system which comprises an enclosed growing region, a central control system and a sub-control system, wherein the growing region is independent from outside and utilizes natural light sources, the central control system controls the environment in the growing region and the sub-control system is connected with the central control system. The sub-control system comprises a light source detection system, an artificial light source system, a light shading system, a carbon dioxide system, an oxygen system, an irrigation water system, a temperature system and a humidity system. By means of scientific control of the growing environment of plants, the plant production is enabled to be improved.

The invention discloses crop yield estimation technology based on a GEE comprehensive remote sensing image and a deep learning method. The crop yield estimation technology comprises the following steps: S1, performing spatial matching on remote sensing data and meteorological data in a research time period and geographic spatial data by utilizing a GEE platform; S2, extracting a grid planting area of crops every year in the research time period in the research area; S3, extracting a monthly value influence factor and a soil attribute factor in the key growth period of the crops by utilizing aGEE platform; S4, calculating the particle space position information of each county crop grid; S5, building a machine deep learning yield prediction model by utilizing a deep learning framework keras platform, and realizing localization of the model; and S6, predicting the crop yield of the year to be predicted in the research time period by using a localized model.

The invention discloses a crop rotation and no-tillage method for reducing chlorine iron content of tobacco leaves in a field tobacco planting area, which adopts tobacco, autumn potato, winter potato, rice, broad bean and flue-cured tobacco circular rotation planting and no-tillage direct seeding and no-tillage interplanting, and comprises the technologies of transplanting flue-cured tobacco and ridges for no-tillage interplanting autumn potatoes, planting winter potatoes, planting rice and no-tillage direct seeding of broad beans and fertilizing. The method provided by the invention can reduce water soluble chlorine ion content in tobacco planting soil in which the water soluble chlorine ion content is as high as 144.23 mg/kg by 68.88-69.26%, the chlorine ion content of the tobacco leaves produced in the soil is originally as high as 19.75g/kg and can be reduced by 70.51-76.05%, the potassium content and the ratio of potassium to chlorine of the tobacco leaves are increased, the ratio of the potassium to chlorine can reach 4.69, the standard of high-quality tobacco leave production can be met, the chemical contents of the tobacco leaves are more compatible, and therefore the quality of the tobacco leaves is improved. Meanwhile the labor cost is reduced by 240 yuan per mu.

The invention discloses an ecological porcupine farm. The ecological porcupine farm is characterized in that the farm comprises an enclosure, an activity region, a cage region, a water drinking region and a drainage ditch. The height of the enclosure ranges from 1.8m to 2.5m, the area of the activity region is not smaller than 25m<2>, the depth of the water drinking region is not larger than 50cm, and the drainage ditch is 80-85cm in width and 55-60cm in depth. The water drinking region and the drainage ditch are connected and provided with a gate. The drainage ditch is provided with a protection net. Plant cultivation regions 8 are arranged in regions on the two sides of the drainage ditch. Toe walls 50-70cm in height are arranged around the plant cultivation regions. The cage region is arranged between the toe walls and the plant cultivation regions. A pergola is arranged above the cage region. A disinfecting spraying pipe and a nozzle arranged on the disinfecting spraying pipe are further arranged above the cage region. Heating lighting sets are arranged in cages respectively. The ecological porcupine farm has the advantages that difference between the ecological porcupine farm and the natural ecological environment is not obvious, the survival rate is increased, and farmed porcupines are robust and strong in disease resistance.

The invention relates to an intensive juvenile crab paddy field aquaculture mode, which comprises juvenile crab aquaculture paddy fields which are connected together. Each juvenile crab aquaculture paddy field comprises a canal, a water inlet pipe, a ridge, rice planting area, a waterweed planting area and paddy field crab ditches. The rice planting area is divided into a ring field rice planting area and inner rice planting areas. The ring rice planting area is of the shape of a rectangular ring. The paddy field crab ditches are arranged on the internal side of the inner ring of the ring rice planting area. The waterweed planting area is arranged between the paddy field crab ditches and the inner rice planting areas and is used for planting waterweeds. The ridge is arranged on the periphery of the rice planting area. The canal is arranged on one side of the ridge. The water inlet pipe is arranged between the canal and the paddy field crab ditches. The intensive juvenile crab paddy field aquaculture mode has the advantages that the aquaculture mode promotes the standard aquaculture of juvenile crabs, the time and the labor for feeding feed and the like are saved, the labor cost is saved, the uniform intensive aquaculture production is facilitated, the crabs can be effectively prevented from being stolen, escaping and being eaten by birds, and the economic benefits are obviously improved by improving values of crops, rice and juvenile crabs.

The embodiment of the invention provides a method for preventing and controlling weeds by planting forage grasses. The method is characterized by comprising the steps that grass type selection is performed, wherein the dwarf, high-density and creeping type forage grasses are selected according to local climate; weeding is performed, wherein the weeds in the land are uprooted, and glyphosate herbicide is sprayed so that remaining weed seedlings and seeds can be reduced; planting is performed, wherein mixture sowing is performed on forage grass seeds in gaps of planting areas. According to the scheme, the weeds are prevented and controlled by planting the forage grasses, in this way, the damage to the environment by chemical herbicide can be lowered, and the weeding effect is improved.

The invention relates to a cloud type dust removal system. The cloud type dust removal system is characterized in that a feeding hole is arranged at the most front end of the cloud type dust removal system and is sequentially communicated with a cloud-mist generator or an atomization box, a particle growing region or an expansion joint, a cloud type collection region or a cloud type dust removal device, a draught fan and an outlet concentration determination region in a sealing manner; a dirt discharge groove is communicated to the bottom of the particle growing region or the expansion joint; an ash discharge device is communicated to the bottom of the cloud type collection region or the cloud type dust removal device, and an outlet of the particle growing region or the expansion joint is in tangential communication with the cloud type collection region or the cloud type dust removal device. According to the cloud type dust removal system, the dust removal rate can reach 99.6%-99.9%, and the capture rate of fine particulate matter (PM2.5) reaches 95%.

The invention discloses a plant recognition system and method based on a geographical location. The method comprises the steps of receiving a plant digital image sent by a mobile communication terminal; receiving geographical location information sent by the mobile communication terminal, and determining a climate type of a plant growing region according to the geographical location information; selecting plant information databases corresponding to the climate type according to the climate type; comparing and matching the plant digital image with the plant sample pictures in the selected plant information databases; judging whether the plant digital image is successfully matched with the plant information or not; reading the plant information with the highest matching similarity to the plant digital image from the selected plant information databases when the plant digital image is successfully matched with the plant information, and sending the plant information to the mobile communication terminal for display. According to the system and the method, the growing climate type of a plant is determined through combination of the growing geographical location of the plant, and the plant recognition efficiency and accuracy are improved.