216 results about "Soil depth" patented technology

The invention discloses a hydraulic deep and rotary cultivation powdery ridge machine which comprises a traveling gear, a cab, an engine, a powdery ridge machine and a framework. The cab and the engine are arranged on the framework, the traveling gear is mounted on the lower portion of the framework and is driven by the engine, a cutting disc which is driven by a hydraulic motor is arranged on the front lower portion of the framework, and the powdery ridge machine is connected to the rear of the framework by hinge seats and hydraulic cylinder supports. The hydraulic deep and rotary cultivation powdery ridge machine has the advantages that the hydraulic deep and rotary cultivation powdery ridge machine can travel stably, is simple and practical, is high in soil smashing efficiency and favorable for growth of roots of crops, deep soil loosening, surface soil loosening and soil lump smashing functions are integrated, deep soil drilling effects can be realized, and the oxygen contents of deep positions of soil and the yield of the crops can be increased.

The invention discloses a layered remediation method for chromium contaminated soil. The method comprises the following steps: detecting the actual chromium contamination condition of soil, determining the boundary of severe and mild chromium contaminated soil on soil depth, performing remediation on the severe chromium contaminated soil by adopting a chemical reduction stabilization method, performing remediation on the mild chromium contaminated soil by adopting a chemical or biochemical reduction stabilization method, performing soil conservation, balancing the soil acidity and alkalinity and performing later-stage tracking and monitoring. An actual chromium contaminated field serves as a support, the combined remediation methods are selected aiming at the current situation that the contamination degrees of the upper soil and the bottom soil are different, the severe chromium contaminated soil on the surface layer is subjected to remediation by adopting the chemical reduction stabilization method, the mild chromium contaminated soil on the deep layer is subjected to remediation by adopting the chemical or biochemical reduction stabilization method, the defects that the soil properties are not distinguished and a same remediation method is adopted in a unified mode in the previous research are overcome, and ex-situ remediation and in-situ remediation are combined to be used, so that the remediation method is reasonable in application under the condition that the remediation effect is guaranteed, the remediation cost is reduced, and the method can be applied to actual soil remediation on a large scale.

The invention discloses a method for calculating dynamic water storage capacity runoff yield in soil freeze-thaw process, and belongs to a hydrological science category in geophysical science categories. The method comprises the following steps of: calculating frozen soil depths at different times in grids of a watershed according to soil temperature distribution; analyzing day-by-day spatial distribution conditions of the frozen soil depths so as to obtain field capacities, distributed along with time, of aeration zones in different grids of the watershed; finding out the maximum field capacities in different grids of the watershed, and calculating the maximum water-holding capacity of the watershed; and calculating a soil freeze-thaw runoff yield of the watershed according to the obtained maximum field capacities in different grids and the maximum water holding capacity of the watershed. According to the method disclosed by the invention, the day-by-day soil freeze/thaw, frozen soil depths and soil temperatures can be simulated according to observed air temperatures, and the day-by-day process of thaw/rainfall runoff can be calculated according to rainfall observation, so that the runoff simulation precision in soil thaw periods in spring is improved, scientific basis is provided for the spring flood prevention decisions, and the gap of frozen soil area runoff yield calculation in the existing home and aboard hydrological models is filled.

A modular planter system is comprised of high density polyethylene plastic propagation flats, geotextile fabrics, plastic inserts, soil capable of supporting plant, shrub and tree growth, and plants for use on impermeable surfaces. The planter system comprises four similarly constructed units with progressively deeper soil depths achieved through the use of plastic inserts and grouped according to a pre-arranged design. More particularly the planter system is comprised of modules each with its own blended soil, plant material, soil, root retardant, and water retentive non-woven geotextile and inserts. Planters are not connected but installed side by side. Each planter may be moved from its place without having to move other planters. Planter units are assembled ahead of use and transported to the installation site on wooden palettes or via similar conveyance. The planter system can be used with or without edging, and has optional apparati including irrigation and walkable functionalities.

Herbicidal compositions are disclosed comprising an effective amount of flufenacet, pendimethalin and diflufenican. A method of controlling harmful plants is disclosed. The compositions may be used flexibly, e.g., in post-emergent and/or pre-emergent applications. The compositions may be used prior to sowing a crop. The compositions may provide enhanced compatibility with crops. The compositions may be used on different soil types, e.g., with high-organic matter soils and/or at different soil depths, e.g., at shallow soil depths. The compositions may be used against herbicide-resistant plant species, for example EMR and TSR-resistant species and/or may be used for resistance management. The compositions may be used with various irrigation techniques.

The invention relates to a filling reclamation method for reclaiming coal mining subsidence lands by Yellow River sediment and belongs to the technical field of mine environment protection. The filling reclamation method includes: confirming trends and sizes of Yellow River sediment filling strips according to the sizes and the shapes of a subsided basin to be filled; draining accumulated water in the subsidence land via existing drainage ditches around the subsidence land, and building a field path and drainage ditches along the vertical filling trend in the central area of the subsidence land; confirming the soil stripping depth of every strip according to the sediment depth, the available soil depth and reclamation elevation of every strip to be filled, stripping surface soil from subsoil in a strip-separated and layered stripping manner, and piling the surface soil and the subsoil on two sides of every strip; filling along a direction from two ends of the strips perpendicular to the central drainage ditches to the drainage ditches, covering the strips by the subsoil and the surface coil sequentially in a reasonable thickness after drainage consolidation of the filled sediment, and finally leveling the land to form a reconstructed soil profile. The filling reclamation method provides technical supports for filling reclamation of the coal mining subsidence lands by the Yellow River sediment.

The present invention discloses a mobile measuring device and a measuring method for grade-change runoff components. The device comprises a square groove to hold soil for experiment. The upper part of the square groove is provided with a rainfall recorder. One end of the bottom face of the square groove is connected to a drive device through a support rod. The drive device controls the inclination degree of the square groove. The left side of the square groove is provided with a control area. Between the square groove and the control area are provided a grade-change slope runoff guiding pipe and a soil middle layer guiding pipe. The invention adopts the hydraulic drive device to drive the square groove to rotate to achieve the function of grade adjustment. For the guiding pipes arranged at the lower end face of the square groove and at different heights, it is possible to simultaneously measure and calculate, under the condition of different rainfall intensities and slope grades, the components of surface runoff which is concentrated on the same soil slope in a non-uniform manner and the components of runoff at different soil depth levels. And based on water balance equation, the vaporization of soil and plants can be further calculated.

The invention provides a rice water-saving irrigation method. According to the method, the soil depths buried in water at different growth periods in different soil types can be monitored through a monitoring device, and an appropriate soil depth buried in water is taken as the irrigation index to confirm the irrigation water volume, so that the water supply meets the water demand for the growth and development of rice. The method solves the problems that in the conventional rice water-saving irrigation method, the instantaneous soil water content condition cannot be monitored based on the measurement index for soil water content, the monitoring is limited to soil types, the cost is high and the technical difficulty is huge, and the collaborative improvement on yield and water content use efficiency is realized.

The invention provides a plain area soil organic carbon three-dimensional space distribution simulation method. The method comprises the steps of (1) fitting a soil organic carbon profile change optimal depth function and determining function parameters; (2) analyzing influence factors of soil organic carbon profile depth function parameters; and (3) constructing and calculating a three-dimensional space distribution simulation model. According to the invention, environment auxiliary variables for simulating soil property spatial distribution in a smooth terrain area are constructed; a soil depth transfer function and a regression Kriging method are used to establish a soil organic carbon three-dimensional space distribution simulation model in the smooth terrain area; the three-dimensional space distribution simulation method research of the soil organic carbon in the region is carried out; a reliable simulation method can be provided for accurately mastering soil organic carbon three-dimensional space-time evolution information under the high-strength agricultural utilization background of the terrain smooth area, and a method reference can be provided for accurately estimating the organic carbon reserve of the area and guaranteeing the soil safety and the grain safety.

The invention, which belongs to the technical field of the electrical power engineering, particularly relates to a construction method of a resistance reduction and grounding device of a transformer station. The method comprises: a surveyor measures a soil resistivity, a frozen soil depth, and a soil layering situation in a site area of a transformer station to obtain surveying data; a soil model is established according to the surveying data; on the basis of the soil model, a grounding device inside the station is designed in the site area of the transformer station; safety verification is carried out on the grounding device designed at the last step so as to obtain a verification result; if the verification result meets the requirement, a next step is executed; if the verification result does not meet the requirement, a grounding device is arranged externally outside the site area of the transformer station and safety verification is carried out; the verification result is stored; a construction drawing is drawn; and construction is carried out by organizing people. Under the circumstances that no extra collected land is increased, the construction method of the resistance reduction and grounding device of the transformer station is provided. The construction method has characteristics of obvious resistance reduction effect, simple structure, convenient construction, and low cost and the like.

The invention discloses a soil sampling device for environmental monitoring which can detect soil at different depths, which comprises a sampling device main body, a rotating rod, a pushing rod, a cutting knife, a positioning hole and a fixing sleeve, and a sampling cylinder is arranged on the sampling device main body , and the two sides of the upper end of the sampling cylinder are connected with the grip rod, the rotating rod is arranged in the side wall of the sampling cylinder through the bearing, and the outer side of the sampling cylinder is set with a positioning plate, and the push rod is arranged inside the sampling cylinder , and the lower part of the push rod is connected with the push block, the cutting knife is arranged on the bottom end of the rotating rod through the cutting edge, and the upper end of the rotating rod is connected with the rotating handle, the fixed sleeve is arranged above the positioning plate, and The inside of the fixed sleeve is connected with the positioning rod through the compression spring and the fixed block. The soil sampling device for environmental monitoring capable of testing soil at different depths is provided with a positioning plate outside the sampling cylinder, which is beneficial to sampling and testing soil at different depths.

Herbicidal compositions are disclosed comprising an effective amount of flufenacet, diflufenican and metribuzin. A method of controlling harmful plants is disclosed. The compositions may be used flexibly, e.g, in post-emergent and/or pre-emergent applications. The compositions may be used prior to sowing a crop. The compositions may provide enhanced compatibility with crops. The compositions may be used on different soil types, e.g., with high-organic matter soils and/or at different soil depths, e.g., at shallow soil depths. The compositions may be used against herbicide-resistant plant species, for example EMR and TSR-resistant species and/or may be used for resistance management. The compositions may be used with various irrigation techniques.

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 method for measuring rice field profile soil bulk densities rapidly, simply and conveniently. The method comprises the particular steps that a soil auger is vertically driven into rice field soil, and when the acquisition soil profile depth is D, the soil auger is driven to a position of a same depth D cm; n layers are divided to take soil samples according to research requirements after the soil samples are taken out, and corresponding depths of the layers are 0-D/n, D/n-2D/n, 2D/n-3D/n, 3D/n-4D/n,... (n-1) D/n D. The taken soil samples are dried and weighed and the weighed soil samples are divided by corresponding volumes respectively to obtain soil bulk densities of corresponding soil layers. According to the method for measuring rice field profile soil bulk densities rapidly, simply and conveniently, the rice field profile soil bulk densities can be measured rapidly, simply and conveniently; soil depths can be adjusted according to requirements to measure soil bulk densities; and limits of fixed depths of cutting rings or the taking of intermediate depths merely to represent soil bulk densities of certain layer depths are broken through. Compared with traditional methods which use cutting rings to dig profiles to measure field profile soil bulk densities, the sampling related ground surface soil area is small, disturbed soil layers are small, and the labor force is saved for more than 400%.

Herbicidal compositions are disclosed, comprising an effective amount of flufenacet, pendimethalin and metribuzin. A method of controlling harmful plants is disclosed. The compositions may be used flexibly, e.g, in post-emergent and/or pre-emergent applications. The compositions may be used prior to sowing a crop. The compositions may provide enhanced compatibility with crops. The compositions may be used on different soil types, e.g., with high-organic matter soils and/or at different soil depths, e.g., at shallow soil depths. The compositions may be used against herbicide-resistant plant species, for example EMR and TSR-resistant species and/or may be used for resistance management. The compositions may be used with various irrigation techniques.

The invention discloses a seedling strip weeding single body for conducting ultrasonic ranging and automatically regulating weeding depth, and belongs to agricultural machinery. A mounting shelf is fixedly installed on a rack cross beam, a single body shelf is hinged to the mounting shelf through a parallel four-bar mechanism A, the two ends of a bothway hydraulic oil cylinder are hinged to the mounting shelf and the single body shelf respectively, an earth surface profiling slide plate assembly is hinged to the lower portion of the front end of the single body shelf through a parallel four-bar mechanism B, a ranging projection disc is horizontally and fixedly installed at the upper end face of the earth surface profiling slide plate assembly, an ultrasonic ranging sensor is installed at the portion, located above the ranging projection disc, on the single body shelf, a wire makes the ultrasonic ranging sensor communicated with a hydraulic system control single-chip microcomputer, and a weeding tooth disc wheel assembly is assembled at the portion, located at the rear part of the earth surface profiling slide plate assembly, of the lower lateral part of the rear end of the single body shelf. The seedling strip weeding single body makes weeding in-soil depths keep consistent all the time, and has the advantages of being novel and reasonable in structure, high in automated degree, good in work quality, and high in adaptability.

The invention discloses a cultivation method for improving paeoniflorin content of red paeony root. A plurality of cultivation measures are adopted for producing area environments of the red paeony root, seeds, selection and preparation of land, field management, pest control and prevention and harvesting; the areas where the rainfall is 200-800 mm and the maximum frozen soil depth is greater than 20 cm are selected, loose and fertile sandy loam or sand-mixed soil is selected for planting, and the organic matter content of the soil is greater than 1 percent. According to the cultivation method, the quality for cultivation of the red paeony root can be improved; cultivation experiments at twelve areas such as several areas of Inner Mongolia, Heilongjiang, Jilin, Liaoning and Hebei show that the paeoniflorin content is 3.2-4.5 percent, the supply of the artificially cultivated red paeony root serving as a medicinal raw material can be guaranteed, and finally the red paeony root can be used in place with gradually exhausted wild red paeony root.

The invention discloses multifunctional soil sample collecting equipment. The equipment comprises a bracket, and a first sampling assembly and a second sampling assembly which are arranged on the bracket, wherein hydraulic supporting legs are mounted at four corners of the bottom end surface of the bracket; rolling wheels are mounted at the bottom ends of the four groups of hydraulic supporting legs; a horizontal cross beam is fixedly connected between the two groups of parallel hydraulic supporting legs, a screw rod is inserted between the two groups of cross beams, the screw rod is sleeved with a sliding block, the first sampling assembly is vertically mounted on the sliding block, a group of fixing plates are further welded to the outer side of the bracket, and the second sampling assembly is vertically mounted on the fixing plates. According to the multifunctional soil sample collecting equipment, two groups of samples can be sampled at the same time, the overall distance between the two groups of samples is adjusted, the multifunctional soil sample collecting equipment adapts to different sampling depths, sampling is convenient after sampling is completed, fixed-point sampling, soil depth measurement and other functional effects are achieved, the multifunctional soil sample collecting equipment adapts to ground supports with different gradients, and the diversity of the equipment is embodied.

The invention discloses an apricot tree soil testing and formulated fertilization method, which comprises the steps of: 1) soil nutrient detection: optionally choosing 667 square meters of fruit trees in an orchard, selecting several fruit trees in S shape from the 667 square meters of fruit trees to serve as sample trees, evenly setting several sampling points at any sample tree's crown drip line along the circumference, conducting soil sampling in two layers along the soil depth at any sampling point, mixing the soil samples taken from a same layer of the sample trees, then reserving the sample by a quartation method, and detecting the content of elements in soil to obtain a test value; 2) calculating the fertilizer preparation amount; and 3) conducting fertilization: according to the calculation result of step 3), performing fertilization in three times after fertilizer preparation. Compared with the traditional fertilization method, the method provided by the invention is more accurate and reliable, is simple and practicable, improves the utilization rate of the fertilizer, saves fertilizer, increases soil fertility, improves fruit quality, and reduces the soil pollution caused by improper fertilization.

The invention discloses a design method for submarine cable burial depth requirement answering anchor damage. The method comprises the following steps: a, according to conditions of a submarine cable burial sea area and anchor tonnage, determining an anchor type and parameters of a boat anchor; b, according to the conditions of a submarine cable burial sea area, and the anchor type and parameters of the boat anchor, calculating speed of the boat anchor when contacting a water surface; c, calculating speed of the boat anchor when contacting a seabed surface layer; d, calculating in-soil depth of the anchor when the anchor passes through the seabed surface layer until the anchor stands still; e, according to seabed soil survey, determining whether an anchor dropping soil layer is a hard soil layer, if not, directly executing the next step, if yes, based on the in-soil depth of the anchor, increasing fluke downward holding length; f, calculating deep burying margin increased by sluicing influence; g, obtaining a design value of submarine cable deep burying. After the design method designs laying of a submarine cable, defects in the prior art can be effectively overcome, to eliminate damages which may cause to the submarine cable by anchoring of ships.

In one aspect, a method for creating a final graded soil surface may include controlling an operation of a grading implement of a work vehicle such that the grading implement removes a layer of soil from a current soil surface as the work vehicle is moved in a forward direction. The method may also include receiving an input indicative of the current soil surface being at an offset soil depth relative to the initial ungraded soil surface, with the offset soil depth differing from the final soil depth. When the current soil surface is at the offset soil depth, the method may further include adjusting a position of the grading implement to add or remove soil based on a depth differential defined between the offset soil depth and the final soil depth to create the final graded soil surface as the work vehicle is moved in the reverse direction.

A sewage processing apparatus for a depth-type underground soil percolation system. The sewage processing apparatus has a depth of 2-5 m, and mainly comprises an upper layer soil filling material with particle size of 0.10-0.30 mm, a middle layer soil filling material with particle size of 0.08-0.1 mm, and a lower layer soil filling material with particle size of 0.10-0.30 mm. A water inlet pipe is laid at the position with soil depth of 25-35 cm and a water outlet pipe is laid at a lowest layer. The apparatus provided by the invention has characteristics of high nitrogen removal efficiency, stable operation effect, no influence on ground landscape, low operation cost and simple management and maintenance, and can be applied to municipal sewage processing, rural centralized sewage processing and distributed household sewage processing.

The invention relates to the field of agricultural equipment, in particular to a plow harrow device for soil turning. The device comprises a rack and a plough plate arranged on the rack, front walking wheels and rear walking wheels are arranged at the front and rear ends of the rack respectively, and the front walking wheels are connected with a driving device through a speed reduction device; a link assembly for automatically adjusting the in-soil depth of a ploughing plate is fixed to the lower middle of the rack, the ploughing plate is connected with a link mechanism, and a soil crushing mechanism is fixed to the rear end of the rack and connected with the rear walking wheels; a shaking mechanism for hammering the ploughing plate is arranged in the upper middle of the rack and can be connected with the soil crushing mechanism. According to the plow harrow device for soil turning, after the ploughing plate comes across hard objects, the link mechanism is used for automatically adjusting the in-soil depth of the ploughing plate, human participation is not needed in the whole process, the ploughing plate does not need to be adjusted multiple times, time and labor are saved, the production efficiency is improved, and the labor intensity is lowered.

The invention discloses an assistant soil sealing mechanism used with seeder colter boot, which belongs to the technical field of agricultural machine. The technical scheme is that: the invention comprises two thumbwheels (13) and an earth-moving board (2) respectively positioned at two sides of the colter boot (25) of the seeding mechanism as well as a power transmission mechanism connected with the thumbwheels (13); wherein, the two thumbwheels (13) are arranged at inner side in front part of the earth-moving board (2). Compared with the traditional colter boot, the invention is unnecessary of mounting additional soil sealing mechanism; besides, with the rational design of the thumbwheels and the earth-moving board, the device can smoothly get back thee soil excavated by the colter boot without excavating the soil around, therefore, the device can preciously ensure the consistency of the soil depth after seeding and reduce the water lose due to the excavation of the soil during seeding by the machines and tools as less as possible, thus improving the crop seedling emergence and effectively facilitating the implementation of the seeding without ploughing.