166 results about "Soil volume" patented technology

A device for computing an excavated soil volume using structured light is disclosed. A control sensor unit is provided at the hinge points of an excavator arm, and is configured to detect and output the location and the bent angle of the excavator arm. A microcontroller is configured to output a control signal so as to capture the images of a work area of a bucket, provided at one end of the excavator arm, using the output of the control sensor unit, convert the captured images into 3-Dimensional (3D) images, and compute an excavated soil volume. An illumination module is configured to include at least one light source that is controlled by the control signal and radiates light onto the work area. A structured light module is configured to capture the work area in response to the control signal.

The instant invention relates to compositions and methods for the control of nematodes and soil borne diseases using compositions comprising high terpene containing oils and one or more surfactants. The invention also relates to methods for increasing the wetted soil volume available for water utilization by plant roots using the disclosed compositions.

Provided is a method for treating contaminated soil. The method includes providing contaminated soil in a soil chamber that has at least one wall, and at least one floor, at least one heater coupled to or inside of at least one of the walls and at least one substantially elongated floor heater coupled to or in the floor. At least one of the walls at least partially includes a thermally conductive material configured to transfer heat from at least one of the heaters to an interior of the soil chamber. At least one of the walls at least partially encloses an interior of the soil chamber. At least one of the walls can move between a closed position during heating of the soil chamber, and an open position that allows a soil moving vehicle to access an interior of the soil chamber to provide or remove soil to and from the soil chamber unencumbered by piping located within the soil volume. The method also includes heating the contaminated soil within the soil chamber to substantially reduce the level of contaminants in the contaminated soil.

The invention provides a biomass charcoal-containing fertilizer assistant, being prepared from 0.5wt percent to 10wt percent of crop growth active factor, 0.5wt percent to 3wt percent of high molecular material and the balance of biomass charcoal. By adding the components and adjusting contents thereof, a fertilizer utilization rate can be increased, the crop yield can be improved, soil volume-weight can be lowered, air permeability and water permeability are enhanced, the forming of soil aggregate is promoted, soil cation exchange capacity is improved, and then soil moisture and fertilizer retention capacity is enhanced; heavy metals, residual pesticide and antibiotics fixed in soil can be adsorbed and can be absorbed less by crops, and crop quality is promoted; in conclusion, the fertilizer assistant has the characteristics of improving soil environment and increasing the fertilizer utilization rate.

The invention discloses a moisture measurement method and device of a vertical section of farmland soil. The device is characterized by comprising a mounting pipe sleeve, a hollow cylindrical electrode, an insulating pipe column, a base band coaxial cable, a liquid-phase hollow water column, a resisting plate and a core processor; the moisture measurement device of the vertical section of the soil is controlled by a voltage-controlled oscillator to generate a high-frequency oscillation signal; a low-frequency square wave signal is obtained through silicon epitaxy high-frequency and low-noise amplitude amplification, and shaping and frequency division of a dual-modulus prescaler; accurate sensing of the volume moisture content of the soil is realized through a mathematical model between the frequency and the volume moisture content of the soil. A cylindrical stereoscopic type multilayered structure is adopted, and a moisture dynamic determination fitting and quantitative inversion technology of the vertical section of the farmland oil is integrated, so that the volume moisture convent of different heights of the vertical section of the farmland oil and the moisture supply amount of the soil of the vertical section are dynamically sensed in real time by utilizing the fewest layers; the moisture measurement method and device has the greatest advantages that the moisture condition of the vertical section of the soil can be continuously sensed in real time, the space integrity is strong and real-time calibration can be realized.

The invention discloses a convenient earth-taker which can be used for testing the bulk density of deep soil, which comprises a base, an auger rod, a geared lifting rod, and a sampling tube; wherein, the base is fixedly connected with the ground, and a top of the base is installed with a For the pull rod with gear, the auger rod is fixed between a pair of pull rods with gear to form a gear system; the thread on the auger rod meshes with the gear on the pull rod with gear to form a lever system; the sampling tube is installed on the auger The bottom end of the drill pipe; the up and down movement of the auger drill pipe is realized by pressing down or lifting the gear pull rod, and the use of the spiral and lever principles can make the earth taker in the present invention more labor-saving, quickly enter the soil and pull out the soil, reducing Soil disturbance improves the accuracy of soil scientific research, while reducing the labor intensity of the sampling process and improving work efficiency.

The invention relates to the field of a soft soil curing agent, and particularly provides a barium-containing sulphoaluminate soft soil curing agent and a preparation method thereof. The sulphoaluminate soft soil curing agent comprises components in percentage by weight as follows: (1), 50%-80% of sulfoaluminateclinker containing barium; (2), 25%-40% of calcined gypsum; (3), 10%-12% of lime; (4), 0.5%-2% of a water-retaining agent; and (5), 0.5%-5% of a retarder. The preparation technique process comprises the steps of calcinating natural gypsum, preparing ingredients, mixing and grinding. The soft soil curing agent has the characteristics of quick condensation, high strength and no shrinkage of curing soil volume, total strength can be formed after the curing for 1-3 days, and the soft soil curing agent is particularly suitable for quick maintenance and reinforcement of road foundations; and besides, under the same additive amount, the unconfined compressive strength of compacted soil adopting the soft soil curing agent is apparently higher than that of compacted soil adopting P.C 32.5 ordinary Portland cement, and the reinforcement effect is remarkable.

The invention relates to a sensor for measuring soil moisture and a measuring method thereof. The soil moisture sensor sends out high frequency signals through a high frequency signal source; a detection circuit converts change of a dielectric constant into direct current voltage to output; and the outputted direct current voltage and soil moisture content determine mathematical relation, so as to achieve accurate measure of water content of soil volume; and the measurement accuracy is +/- 2 percent. Because the detector head of the sensor adopts a probe type, the sensor can be embedded in a soil section to measure continuously and can also be matched with a special measuring instrument to measure in a movable circulation mode; as the circuit is relatively simple, the measuring method has low cost which is much lower than that of a TDR soil moisture tester; , and the measuring method is convenient to debug, and ensures consistency of batch production of sensors.

The invention belongs to the soil humidity inversion method and particularly relates to the soil humidity inversion method aiming for the ultra wide band radar echo. The soil humidity inversion method aiming for ultra wide band radar echo comprises steps of obtaining near-real-time echo data by using the characteristics of short pulse, strong penetrability, and anti-interference of the ultra wide band radar, utilizing a fuzzy logic system to study and extract characteristic parameters of a membership function from the echo data, and inverting soil volume water content through performing template matching on the membership function. The method provided by the invention is accurate and fast and low in cost, and can monitor the changing of the soil humidity in unattended operation for long time. The low cost of the invention is applicable to generalization and applicable to the assembled radar sensing network performing real time monitoring on the big area soil humidity, and, as a result, the invention provides a reliable mean to realize the accuracy agriculture.

A wind driven generator base anchor pile construction technology taking rock as a bearing stratum comprises the following steps: (1) excavating rock and soil volume in designed diameter, pouring concrete subslab after removing to the designed depth of excavation, and arranging anchor pile hole sites, (2) starting up an air compressor and downhole drill to drive an impacter to rotate and vibrate for punching, forming an anchor pile hole, (3) lifting a prefabricated reinforcing cage into the anchor pile hole, pouring concrete, and forming at least two circles of vertical pile and one circle of batter pile after the concrete strength reaches the standard, (4) putting a reinforcement mat rack into a base pit, fixedly connecting the reinforcing cage and the reinforcement mat rack and then pouring concrete, and (5) arranging a base embedded part above the concrete foundation and poring concrete. The invention has the advantages of less excavated rock and soil volume, no need of blasting operation, few amount of reinforcing steel bar and pouring concrete, no pollution to environment and soil, high construction efficiency and safety, small occupied area, low construction cost, high foundation strength, and strong pulling-out resistant and shearing resistant capacity.

The invention relates to the field of water-saving irrigation, in particular to a land irrigation quota determining method. The land irrigation quota determining method mainly comprises the steps that film mulching is conducted on soil of an experimental field after the soil of the experimental field is fully irrigated; three experimental points are randomly selected in the experimental field to obtain soil samples; 20 g-30 g of each soil sample are weighed, and a field water-holding ratio of the soil and a soil volume-weight are obtained; management and calculation are conducted on the obtained data of the water-holding ratio and the volume-weight of the soil layer with the same depth of the three experimental points to obtain average values; scatter points of the obtained data are drawn on a coordinate system, computer software is utilized to draw an H-gamma, H-alpha fitting function curve chart, according to the fitting function curve chart, a maximum water volume M of one-time irrigation of the soil is obtained through formulas. The land irrigation quota determining method can greatly reduce the waste of agricultural water, and the land irrigation quota determining method is economical and practical.

The invention provides a macadam slope vegetation recovery structure and a construction method, and relates to the technical field of slope restoration. According to the macadam slope vegetation recovery structure, by means of matched arrangement of a covering soil layer, a first protection layer, a base layer, a planting layer and other specific structures, the slope stability can be effectivelyenhanced, ecological restoration on a macadam slope is achieved, the needed covering soil is greatly reduced, and the technical problem that the covering soil layer is large in thickness, the soil volume is large, and a soil source cannot be guaranteed due to the fact that direct soil covering is adopted for plant cultivation in the prior art is relieved. In addition, the macadam slope vegetationrecovery structure can control the macadam slope locally, macadam clearing and carrying expenses are saved, the cost is greatly reduced, and the technical problem that due to the fact that in the prior art, a machine is adopted for clearing and carrying the macadam slope in the prior art, the stacking place is limited, the transportation distance is long, and the clearing and carrying cost is highis relieved. The construction method of the macadam slope vegetation recovery structure is further provided.

The invention discloses an irrigation decision-making method and an irrigation decision-making device based on weather forecast. The method includes determining a field water holding point and an irrigation compensation point according to a soil moisture content accumulation curve, wherein the soil moisture content accumulation curve is a curve showing time-dependent changes of the soil volumetricwater content corresponding to a specific soil depth; determining a predicted value of reference crop evapotranspiration ET0 according to weather forecast data; predicting a predicted value of actualcrop evapotranspiration ETc in the future according to the predicted value of the ET0 and a crop coefficient Kc; and predicting the number of irrigation days according to the predicted value of the ETc in the future, the field water holding point and the irrigation compensation point. By the method and the device, the problem of complexity of related irrigation forecasting ways is solved.

The invention discloses a preparation method of a salinization soil improving agent. The method comprises the following steps of fermenting corn stalks; preparing an organic ecological fertilizer; preparing and modifying charcoal; compounding the improving agent. The method has the beneficial effects that the used major raw materials are all from industrial and agricultural production byproducts or wastes; the environment is protected; the comprehensive utilization is realized; the cost is reduced; the improving agent can effectively enhance the organic matter content in the soil; the content of mineral substance elements in the soil solution is increased; the soil fertilizer effect is enhanced; the water holding performance is enhanced; the soil volume weight is reduced; the porosity is increased; the soil structure is improved; through the ion replacement effect of the soil improving agent, the contents of salt base ions such as sodium ions and potassium ions in the soil solution can be effectively reduced; through the rinsing effect, the salt base ions are settled to the soil bottom layer; the harm of the salt base ions is reduced; the pH value of the soil solution can be reduced; the salinization soil is fundamentally improved, so that high economic values and social values are realized.

The invention relates to the technical field of soil conditioners, and particularly relates to a garden waste biomass carbon based soil conditioner and a preparation method thereof. The garden waste biomass carbon based soil conditioner consists of the following raw materials in parts by weight: 50-100 parts of garden waste biomass carbon, 10-15 parts of fermented soybean residues, 10-15 parts ofplant ash, 1-5 parts of chitin, 10-15 parts of sodium bentonite, 5-10 parts of sodium lignin sulfonate and 1-5 parts of nano titanium dioxide. The garden waste biomass carbon based soil conditioner and the preparation method thereof provided by the invention have the beneficial effects that the garden waste biomass carbon is adopted as a basic raw material, the characteristics of the garden wastebiomass carbon as biomass carbon are fully utilized, and then the raw materials such as the fermented soybean residues, the plant ash, the chitin, the sodium bentonite, the sodium lignin sulfonate andnano titanium dioxide are selected to be matched with the garden waste biomass carbon, so that the gas permeability of soil can be effectively improved, the soil volume weight is reduced, contaminated soil is repaired, the soil microbial activity is promoted, and the soil fertility and the water permeability are enhanced.

The invention relates to a carbon-based biological potassium fertilizer which is a fertilizer prepared by mixing biochar with a potassium fertilizer, a beneficial bacterial agent and a synergistic agent. The carbon-based biological potassium fertilizer can reduce the curing rate of a potassium nutrient element in soil, promote the dissolution and the release of cured potassium, improve the absorption utilization rate of crops, reduce the fertilizer investment cost, improve the total amount of potassium decomposition bacteria in soil, promote the activity of the potassium decomposition bacteria, covert a fixed potassium element in the soil to a soluble effective potassium nutrient element which can be directly absorbed and utilized by the crops, alleviate a soil hardening phenomenon, increase the soil aggregate structure, reduce the soil volume weight, improve the soil biological activity, improve the soil environment, reduce the dependence on imported potassium fertilizers, reduce application amounts of traditional potassium fertilizers, and safeguard the Chinese agriculture and food safety.

The invention discloses a novel method for reducing nitrogen loss in composting process of perishable garbage. According to the novel method, biochar prepared at the high temperature of 800 DEG C canwell adsorb ammonium ions, so that volatilization of NH4 <+> in the composting process is reduced, and the nitrogen preservation process is promoted; the biochar is doped with certain iron ions, and iron-based biochar is added in the composting process, so that the generation of catalase in the aerobic biological reflection process can be promoted; the biochar adsorbs NH4 <+> in the reactor, the dissolution of NH4 <+> is inhibited, the formation of hydroxyl ions is prevented, and the increase amplitude of the pH value of the compost is effectively reduced; and by virtue of biochar, the nitrogen discharge in the composting process can be improved, and after the composting is finished, the biochar and the decomposed material after composting are applied to soil, so that the soil volume weight can be effectively reduced, the porosity is increased, the water holding capacity of the soil is improved, the field climate is improved, the field water holding rate is adjusted, the structure of the soil can be improved, the soil is loosened, the three-phase proportion of the soil is stabilized, and the pH value of the soil is improved.

The invention belongs to the technical field of oil improvement, and especially relates to a soil improvement agent. The soil improvement agent is prepared from, by weight, 20 to 25 parts of dolomite powder, 19 to 22 parts of flyash, 13 to 16 parts of powdered rock phosphate, 12 to 15 parts of peat, 8 to 10 parts of food residue, 7 to 9 parts of polypropylene glycol, 6 to 10 parts of humic acid, 5 to 8 parts of livestock manure, 4 to 8 parts of leguminous green manure, and 0.5 to 1 part of dendrobium. The soil improvement agent is reasonable in formula, is capable of improving soil physical structure effectively, reducing soil volume weight, improving soil water content, changing soil chemical properties, adjusting all conditions or a part of conditions including soil water, fertilizer, gas, and heat, and improving soil fertility.

A testing system capable of dynamically testing features of water content of soil in the dehumidification/freezing process comprises a pressurization dehumidification system, a temperature control system and an automatic data collecting system. According to the testing system, through the combination of the pressurization dehumidification system and the temperature control system, the constant-temperature dehumidification drying process and the constant-pressure cooling freezing process of a soil sample are achieved. By means of the testing system, the whole dehumidification process is conducted in a temperature-adjustable constant-temperature control box, testing of soil water content features is completed, error influences caused by potential factors such as temperature change, water evaporation, soil volume change and manual operation in the dehumidification process of soil are fundamentally reduced, and on the other hand, the cooling freezing process of soil under different pressure conditions is achieved through a pressurization device and effective methods and means are provided for soil freezing experimental investigation under the high pressure condition. The system can be used for the dewatering drying process of the soil sample under the set temperature condition and can also be used for the cooling freezing process of the soil sample under the set pressure condition, and the automatic real-time monitoring and collecting in the soil sample dynamic changing process are achieved.

The invention discloses a method for harvesting green Chinese onion. The method comprises the following steps: 1) while shoveling soil, forming two cutting slots by a soil-separating device; 2) backwardly moving the shoveled green Chinese onion, primarily removing the soil on the roots of the green Chinese onion by using a comb-shaped joint part and then leading a longitudinal conveying device; 3) vertically clamping the green Chinese onion in the longitudinal conveying device, using a soil-shaking device for shaking off the soil on the roots of the green Chinese onion in the conveying process, thereby realizing the secondary removing of the soil on the roots of the green Chinese onion; 4) after the soil is removed, moving the green Chinese onion from the longitudinal conveying device to the horizontal conveying device, and rotating the green Chinese onion through an inclined channel and gradually backward conveying; and 5) when the green Chinese onion is conveyed to the discharging end, correcting to the horizontal state by the guiding mechanism, thereby completing the secondary rotation, and then conveying to a stacking area and completing the packing. According to the method provided by the invention, the shoveling soil volume can be reduced, and meanwhile, the secondary removal for the soil on the roots of the green Chinese onion and the secondary rotation for the green Chinese onion are adopted, so that the stacking and packing operations can be conveniently performed.

The invention provides a method for estimating a soil erosion rate on a slope of a mine dumping site. The method comprises the steps that an unmanned aerial vehicle is used to acquire an image of the dumping site; accurate space position information of a ground control point of the dumping site is acquired; based on the space information of the control point and the high-definition image, a point cloud and orthographic projection data are generated; visual explanation is conducted to the orthographic projection image, erosion gully boundaries are generated, elevation point data in an erosion gully is screened according to the erosion gully boundaries, and an erosion gully DEM is generated according to the elevation point data; buffer area boundaries are obtained according to the erosion gully boundaries, elevation point data in the buffer area boundaries is screened, and a buffer area DEM is generated according to the elevation point data; a grid calculator tool is used to compute the difference between the buffer area DEM and the erosion gully DEM, so an average depth DEM of the erosion gully is obtained; and according to the average depth DEM of the erosion gully and the erosion gully area, an erosion soil volume of the erosion gully is obtained through computation; and a soil erosion modulus is computed. According to the invention, the soil erosion rate of the slope of the dumping site could be reckoned rapidly.

The invention is suitable for the technical field of saline-alkali soil improvement, and provides a method for improving the soil fertility of saline-alkali soil by planting sesbania. The method is characterized by comprising the steps of deep ploughing, irrigation and salt separation, wherein soil turning is carried out, weeds of the saline-alkali soil are removed, a compact soil layer is formedbelow the earth surface, and underground water high in salt content is prevented from moving upwards; sowing and fertilizing, wherein seeds need to be soaked or sand is added for wiping the seeds before sesbania sowing, a single sowing mode is used, phosphorus fertilizer is applied, the yield of sesbania is increased, and the content of nitrogen and phosphorus in sesbania is increased; harvestingand fertilizer retention, wherein after the sesbania is ripe, direct ploughing is conducted, straw and livestock manure can be heaped and applied to serve as base fertilizer or conduct topdressing, stalks need to be cut off, chopped and completely buried in the soil layer to prevent moisture evaporation, after sesbania is turned, the total quantity of water-stable aggregates of soil is increased,the soil volume weight is reduced, the porosity is improved, and the soil can be prevented against salt return. Therefore, the fertility of the saline-alkali soil can be improved, and conditions of the saline-alkali soil for planting crops are improved.