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332 results about "Subsoil" patented technology

Subsoil is the layer of soil under the topsoil on the surface of the ground. Like topsoil, it is composed of a variable mixture of small particles such as sand, silt and clay, but with a much lower percentage of organic matter and humus. Below the subsoil is the substratum, which can be residual bedrock, sediments, or aeolian deposits. As it is lacking in dark humus, subsoil is usually paler in color than the overlying topsoil. It may contain the deeper roots of some plants, such as trees, but a majority of plant roots lie within the topsoil.

Method for consolidating subsoil through microorganisms in circulating grouting mode

A method for consolidating subsoil through microorganisms in a circulating grouting mode includes the steps that a, grout injecting pipes and grout extracting pipes are inserted into the subsoil to be consolidated at intervals; b, microorganism bacterial liquid is circularly injected into the subsoil through the grout injecting pipe (I) and the grout extracting pipe (I'); c, a cement solution is circularly injected into the subsoil through the grout injecting pipe (II) and the grout extracting pipe (II'); d, the extraction and injection functions of the grout injecting pipe (I) and the grout extracting pipe (I') are interchanged, and the microorganism bacterial liquid is made to circularly injected into the subsoil in the opposite direction; e, the extraction and injection functions of the grout injecting pipe (II) and the grout extracting pipe (II') are interchanged, and the cement solution is circularly injected into the subsoil in the opposite direction; and f, the steps b, c, d and e are repeated until the subsoil meets the consolidation requirement. A grouting system with integrated extraction and injection, alternation of positive circulation and negative circulation and orthogonal streamlines is formed in the subsoil through the microorganism circulating grouting mode, the microorganism bacterial liquid and the cement solution can be rapidly and uniformly injected into the subsoil and react to generate calcium carbonate sand or powder with loose cementing, and a composite subsoil with high bearing capacity is formed.
Owner:NANJING FORESTRY UNIV

Method for controlling salt and saving water of nutritional soil for planting crops on mudflat saline-alkali land

The invention discloses a method for controlling salt and saving water of nutritional soil for planting crops on a mudflat saline-alkali land. The method comprises the following steps of: determining a salt control target value according to a salt-tolerance threshold of planted crops; restraining salt content and making moisture by irrigating soil moisture water into the mudflat saline-alkali land; performing deep plowing and deep tillage after the soil is dry; paving crushed crop straws under the surface of the soil; seeding after leveling the land; and finally returning the crop straws into the land for covering a sown land surface. Due to the adoption of the technical scheme, water resource is saved; and the irrigation amount can be reduced in the growth and development stages of the crops. When the soil moisture water is irrigated before sowing, because a four-electrode salt content sensor is adopted for monitoring a desalting process of the soil in real time, an irrigation salt control target and irrigation stop time are defined, and water resource loss is reduced; simultaneously, the straws are buried deeply and covered on the land surface, continuous damage caused by a capillary action is caused; an uplink surface congregation effect of the salt content in subsoil and underground water is prevented; soil salt return is inhibited effectively without irrigating for washing the salt in a dry season so that the water resource is saved; in addition, water loss is reduced because of the coverage on the surface of the land, the moisture keeping effect of the soil is improved and the irrigation amount in the growth and development stage of the crops can be reduced.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI

Stereo cultivation technology for interplanting tea tree in osmanthus fragrans lour woods

The invention relates to a space-planting cultivation technology with the tea plant interplanting in osmanthus fragrans woods, which is achieved through the following steps. (1) After the weeds clearance on the ground in July to August of the first year, the subsoil plowing and the soil aging are implemented. From February to March of the second year, the deep ditches spaced every two meters are dig, in which the inside is laid with grasses, soil, organic fertilizers and soil. (2) The osmanthus fragrans tree seedlings with 2.5 to 3cm diameter, 1.7 to 2m height and 60-80cm crown width are planted on the ditches. (3) The shallow furrows are dig on each deep ditches to grow the annual clone cuttage propagation tea plant seedling. (4) The tea plants are not planted within the 50-60 cm range around the osmanthus fragrans tree. The advantages of the invention is that a space-planting cultivation technology with the interplanting of short stalked plant tea plant in the high stalked crop osmanthus fragrans woods is provided. With the use of the cultivation technology, the full use of the gap in the middle of the osmanthus fragrans woods is achieved, and the workload of cultivating and weeding is also reduced. Thus the greater economic benefits can be generated within the limited land resources.
Owner:溧阳市芳芝林生态园

Filling reclamation method for reclaiming coal mining subsidence lands by Yellow River sediment

ActiveCN103283335AGuarantee the source of covering soilDrain fastSoil lifting machinesSoil-working methodsPondingSoil depth
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.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Method for raising golden camellia seedlings by cutting

The invention relates to a method for raising golden camellia seedlings by cutting. The method is specifically characterized in that: through constructing a small seedling raising greenhouse, an effect of both saving the investment on infrastructures and easily controlling the humidity of the seedling raising greenhouse is achieved; an aerial fog system consisting of a humidity control instrument, an ultrasonic humidifier and a water storage basin is established in a seedling raising yard, so that the environmental humidity, the disinfection and an action of supplying a nutrient solution for nursery stocks in the process of seedling raising can be precisely and automatically supplied by the humidifier controlled by the humidity control instrument, therefore, the degree of automation is high, and the work efficiency is greatly improved; a disinfectant prepared from carbendazim is absorbed by a high-absorption-power water-retaining agent and then solidified into a solid disinfectant, the solid disinfectant, yellow subsoil and fine river sand constitute a seedling raising medium, and the solid disinfectant can sustainably carry out nursing on cutting slips for 1-2 months; and the implementation process also comprises a method for collecting and treating branches of golden camellia, a seedling raising management method and a seedling raising management process. Through the implementation of the invention, the factorized, large-scale and intensified breeding production of nursery stocks of golden camellia is facilitated.
Owner:何寒

Compact vibrator and seismic monitoring or prospecting method using such a vibrator

Compact vibrator for emitting elastic waves in a material medium such as the subsoil. The vibrator comprises a baseplate (3) intended to be coupled in operation with a surface of this medium, an inertia mass (5) and at least a pair of electromechanical transducers (1, 2) comprising each one or more pillars (A, B) made for example of a piezoelectric or magnetostrictive material. Pillars (A) of first transducer (1) are interposed between baseplate (3) and a relay plate (4). Pillars (B) of the second transducer are interposed between relay plate (4) and inertia mass (5), on the same side of relay plate (4) as pillars (A) preferably, so that inertia mass (5) is positioned in the vicinity of baseplate (3), which contributes to the compactness and to the stability of the vibrator that can therefore be used on slightly sloping surfaces. An excitation generator (6) comprising phase shifting means (7) respectively applies to transducers (A, B) phase-shifted signals that are amplitude-modulable, so that their vibrations combine. The vibrator can be applied: notably for equipping an underground zone under development with periodic seismic monitoring means or for carrying out seismic prospecting operations.
Owner:GAZ DE FRANCE +2

Deep scarification high pressure blowing-in controllable fertilizer distributor

The invention relates to a deep scarification high pressure blowing-in controllable fertilizer distributor, which comprises a traction apparatus, an air compression device, a deep scarification device and a material dispatching device; wherein the traction apparatus moves by power; the air compression device comprises a compressed air collecting vat fixed on the traction apparatus, a compressed air conduit fixedly connected with the compressed air collecting vat, an air compressor fixed on a ration axis and an air compressor cooling roller; the air compressor is connected with the compressed air collecting vat by the conduit; the deep scarification device is fixedly connected with the material dispatching device, comprises a deep scarification pillar and a pellet component fixedly connected with one end thereof; the material dispatching device comprises a material box fixedly connected on a raiser and a material pipe fixedly connected with the material box; the material pipe is arranged on the side of the deep scarification pillar and is fixedly connected with the compressed air conduit on the pipe wall thereof. The deep scarification high pressure blowing-in controllable fertilizer can realize the mechanization operation of the soil subsoil application, has high working performance, good quality, can control fertilizing amount, increases the effective rate of utilization of the fertilizer, does not pollute environment and has good environmental protection effect.
Owner:YANTAI UNIV

Undercurrent-surface current composite artificial marshland

The invention provides a subsurface flow and surface flow complex manmade wetland. The complex manmade wetland comprises a land, a subsurface reservoir and a surface reservoir, a surface collecting pool and a subsurface collecting pool. One side of the land is provided with the subsurface reservoir and the surface collecting pool, and the other side of the land is provided with the subsurface collecting pool and the surface collecting pool. The subsoil of the land is filled with a gravel layer, and the upper soil is covered with a pastoral earth; the filling depth ratio between the gravel layer and the pastoral earth is 3: 2. Emersed plant, floating plant and submerged plant are planted on the pastoral earth of the upper soil of the land; the subsurface collecting pool is communicated with the surface reservoir through a water pipe equipped with a valve. The invention combines the advantages of subsurface wetland and surface wetland such as high water purification efficiency, high water quality, high hydraulic load, low investment and operational charge, and good treatment effect; according to actual need, a plurality of measures can be used such as alternatively adopting subsurface flow and surface flow, subsurface flow and surface flow.
Owner:SHANDONG UNIV

Composite green nourishing soil for clivia minate flower and its use method

The invention relates to a composite green nutritional soil of kaffir lily flowers and the using method thereof. The invention is characterized in that the composite green nutritional soil is made of following raw materials: oak leaf mold, pine needles, grass peats, bark specks, egg shells, gravels, bone meals, Hemp seeds and castor seeds. The oak leaves are crushed to be in the shape of fragment; the Hemp seeds and the castor seeds are stir-fried by an iron pan, the bone meals are ground into fine grains, and the egg shells are carried out fermenting treatment in an airtight container after being crushed. The using method is as follows: the raw materials are taken according to the weight component, the oak leaves peats, pine needles, grass peats, bark specks, egg shells and gravels are mixed and evenly stirred so as to make the fabricated soil; a layer of fabricated soil is paved at the bottom of a flower pot; the subsoil is fertilized; then the fabricated soil is put in the flower pot, and the surrounding soil at the periphery of the flower pot is fertilized. The invention serves as both the nutritional soil of the kaffir lily and the fertilizer, can make the roots and the leaves of the kaffir lily luxuriant, and make the veins thereof raised, increase the brightness, the hardness and the thickness, and make the kaffir lily have long florescence, bright color and high disease resistance. The invention also can be applied to the cultivations of various orchids.
Owner:曹国英

Strip seeding production line for raising hybrid rice seedlings

The invention discloses a strip seeding production line for raising hybrid rice seedlings. The production line is composed of a front part, a rear part and various mechanisms, wherein a driving motor, a drive device, a fertilizer applying mechanism, a subsoil mechanism, a brushing and flattening mechanism and a groove rolling mechanism are arranged on a front rack; a driving motor, a drive device, a seeding mechanism, a water spraying mechanism and a soil covering mechanism are arranged on a rear rack; and all the mechanisms are driven in a stepless synchronization manner and are respectively provided with a regulating device, so that the capacity of each mechanism can be regulated according to different needs. After an empty seedling disk passes an inlet, the drive devices convey the seedling disk into the production line, and thus the seedling disk can be driven at the bottom of each mechanism, wherein the fertilizer applying mechanism applies a thin layer of seedling strengthening agent fertilizers at the bottom of the seedling disk; the subsoil mechanism spreads subsoil on the fertilizers distributed in the seedling disk; the brushing and flattening mechanism brushes the subsoil on the surface of the seedling disk so as to flatten the subsoil; the groove rolling mechanism rolls 18 trapezoidal grooves in the subsoil on the seedling disk; the strip seeding mechanism quantificationally sows sprout seeds into the grooves in time by virtue of a strip seeding device; the water spraying mechanism firstly sprays atomized water to position the seeds in the grooves and then sprinkles water for the secondary time so as to ensure that the water is completely permeated into the subsoil; and the soil covering mechanism overlays a thin layer of fine soil on the seeds to prevent the exposure of the seeds so as to ensure that the seeds are not influenced, so that the one-time seeding is finished by the production line. The production line provided by the invention is suitable for strip seeding in the raising of the hybrid rice seedlings.
Owner:ZHUJI LEYE AGRI MACHINERY
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