110 results about "Soil sealing" patented technology

The invention relates to an open high-strength concrete prefabricated pile in the field of pile foundation engineering, a pile form thereof, and a centrifugal manufacturing method. 1) The outer high-strength concrete prefabricated pile body (2), and on the side of the high-strength concrete prefabricated pile body (2), there is a concave surface (3) with a centrifugally formed cross-section and an arc-shaped cross-section, depending on the shape of the cross-section. , proposed pile types such as H-type piles, groove piles, corner piles, open cylindrical piles, star piles, etc., and then put forward the pile mold and forming method of one-time centrifugal forming multi-section piles, and proposed open high-strength concrete precast piles and cement The structural composition and construction method of the PMW earth-retaining and water-stop pile combined with soil piles, the open high-strength concrete prefabricated pile of the present invention has high material strength, good flexural performance, small pile driving effect, and can greatly save the cost of pile foundation engineering. , the environmental protection benefits are outstanding.

The invention discloses a primary state soil sampler for loose sandy soil, comprising inner and outer sleeves, wherein, the front end of the outer sleeve is a cone cutting edge, the inside of the cutting edge is provided with a guiding inner cone, the front end of the inner sleeve is provided with a plurality of elastic cap liners matched with the guiding inner cone, the central section of the inner sleeve is provided with sockets of soil separators, the front end of the inner sleeve is provided with a socket of a soil sealing plate, and the rear portion is provided with a jack of a synchronous positioning pin. The usage comprises the following steps that: before collecting soil, the inner sleeve is inserted into the outer sleeve and inserted into the synchronous positioning pin, the outer sleeve is pressed in soil by force application, then the inner sleeve is pressed to push the elastic cap liners to come together with the guiding inner cone for close up; the outer sleeve is lifted,the soil sealing plate is inserted into the socket, and then the inner sleeve is pulled out; the soil separators are respectively inserted into the sockets, and then the soil sealing plate and the soil separators are successively pulled out, the soil flowed out with each plate are collected and weighed to get a value, and the value is divided by the volume between the soil separators to get the soil bulk density of different depths.

The invention relates to a method for strengthening the soft foundation with dual-vacuum self-load coupled prestress and power compress, wherein said method comprises: building coffer around the ground; blowing slurry into coffer; laying working cloth and bamboo rods on the slurry surface; the bamboo rod is inserted with plastic discharge plate, vacuum horizontal tube network, vacuum prestress system, and thick soil sealing layer, while the vacuum prestress system vacuums; the mud sealing layer is arranged with vacuum well precipitation system; the electroosmosis tube is inserted at the inner side of vacuum well tube, and mounting electroosmosis system to connect the vacuum well tubev and the cathode of electroosmosis system, and connect the electroosmosis tube and the anode of electroosmosis system to form direct-current loop, and starting the vacuum electroosmosis precipitation; when the vacuum electroosmosis precipitation is end, taking away the electroosmosis tube and the vacuum well tube, and laying one layer of stuff on the ground, to start the first low-energy concrete strengthen, and after two or three times of said process, ending the low-energy concrete strengthen; vibrating and milling, flattening the ground. The invention can process the soft foundation and the slurry layer synchronously, with low solidify period.

The invention discloses a method for comprehensively recovering molybdenum-containing polymetallic gold ore resources, which comprises the following steps: firstly, crushing and grinding molybdenum-containing gold ores first, performing floatation on useful metallic elements to obtain bulk concentrate by a complete mixing floatation method, and discarding tailings; secondly, leaching out and recovering gold and silver from the bulk concentrate by CCL carbon paste wet-method gold leaching technology, and using tailings after gold leaching for preferred selection of molybdenum in the next step; thirdly, performing preferred separation and floatation of the molybdenum on the gold leaching tailings to obtain qualified molybdenum concentrate; fourthly, activating molybdenum-selecting tailings, and performing separation and floatation of lead to obtain lead concentrate; fifthly, performing separation and floatation of copper on lead-selecting tailings to obtain copper concentrate; and sixthly, performing floatation of sulfur on copper-selecting tailings to obtain sulfur concentrate, performing filtration and backwater circulation on sulfur-selecting tailings, and applying the sulfur-selecting tailings to the carbon paste wet-method gold leaching technology for recovery of the gold and the silver. The method greatly improves the grade of separated metals. The following products can be obtained by utilization of the method: more than or equal to 95 percent of alloyed gold, more than or equal to 45 percent of the molybdenum concentrate, more than or equal to 40 percent of the lead concentrate and more than or equal to 35 percent of the sulfur concentrate. The tailings after floatation are filtered by a ceramic filter (the moisture content is less than or equal to 15 percent), subjected to dry-type stacking, and used for soil sealing and land rehabilitation in late stage.

The invention discloses a tea tree transplanting and cultivating method. The method includes the steps that firstly, a land parcel with much humus and deep soil texture is selected to be reclaimed in a southern mountainous area, with the altitude of 500-3000 m, in Anhui Province, after the land parcel is smoothed, 20-centimeter humus is used for covering the land parcel, the width of a seedbed is 1.2 m, the height of the seedbed is 20 cm, and the furrow width is 30 cm; secondly, ditching and ridging are conducted on the seedbed, crop straw organic fertilizer is laid on the bottom layer, then ridging and soil sealing are conducted, and a tea sapling is transplanted to a ridge; thirdly, after the tea sapling grows to 30 cm in height, night soil is dressed in time; fourthly, in the second year after the tea tree survives, a conventional tea tree pruning method is used for pruning the tea tree, and the height of the tea tree is controlled; fifthly, the fertilize applying time is in the range from the middle ten days of September and the first ten days of October, shallow trenches which are 10 cm in depth are dug in positions away from the tea tree by 30 cm, and organic fertilizer is evenly applied in rows in a furrow mode, then soil covering is conducted, fertilizer application only needs to be conducted at a time, and watering is not needed; sixthly, green tea is picked in the vigorous stage of growth of tea leaves in spring but not the initial period of spring tea, and the picking time is 15-20 days after the spring tea sprouts.

The invention discloses a combined operation machine and relates to the technical field of agricultural machines. The combined operation machine comprises a frame and a farming bracket installed at the tail of the frame through a lifting pull rod. A subsoiler, a rotary blade, a grading dragging plate and a furrow opener are sequentially arranged on the framing bracket from front to back. A fertilizer storage box is installed on the farming bracket and provided with a soil feeding pipe and a planting feeding pipe, wherein the soil feeding pipe extends to the position between the subsoiler and the rotary blade, and the planting feeding pipe extends to the position behind the furrow opener. A seed discharge box is arranged at the position, behind the planting feeding pipe, of the farming bracket, and a soil sealing roller is arranged behind the seed discharge box. A straw smashing device is installed at the front end of the frame. Compared with the prior art, the combined operation machine can complete straw smashing and returning, land subsoiling, rotary tillage, flattening, furrow opening, fertilizer applying and seeding at a time, so that production efficiency is improved substantially; through the combined operation machine, soil is prevented from being compressed repeatedly, so that the ventilation and water permeability of the soil are maintained, and seeds are promoted to sprout and grow.

The invention discloses a biologic green fertilizer, which aims at solving the defects that the existing fertilizers and compound fertilizers are easy to cause soil sealing, degradation of soil fertility, soil pollution and the like which affect the development of ecological agriculture. In the invention, 30 weight portions of garbage, 30 weight portions of organic matter, 5 weight portions of sheep manure, 2 weight portions of chicken manure, 3 weight portions of duck manure, 5 weight portions of pig manure, 5 weight portions of pressed tea seed, 8 weight portions of pine leaves, 5 weight portions of raw bone meal, 4 weight portions of straws, 0.9 portion of human hair as well as the materials like microelements and rhizobium are cracked and mixed; then 12 percent of water, 0.2 percent of rice vinegar, and 0.1 percent of mold culture are added for fermentation for 2 to 3 days under the temperature condition between 45 and 50 DEG C; then rhizobium, azotobacter, phosphor bacterium, silicate bacteria and 5406 bacteria are added and arranged in an environment of 25 to 28 DEG C for 5 to 7 days and then packaged. The invention is used as a crop fertilizer, is easy to obtain the materials, has high fertilizer efficiency, does not harden and pollute soil, and is green without pollution, and the yield is improved by more than 11 percent.

An annual cultivation method for coprinus comatus sequentially comprises the following production methods: the technological processes of culture production, fermentation treatment of culture medium, sterilizing inoculation, hairy fungus culture, soil sealing, mushroom production, and the like, are carried out; the culture is produced by a liquid seed production method; reed residues and needle mushroom leftovers are used as culture medium for fermentation treatment; cultural bags adopts open type inoculation, and a two-stage type cultural method is used; the inoculation and the hairy fungus culture are carried out in ordinary steel tube greenhouse; the soil sealing and mushroom production are carried out in the environment of civil air-defense construction. The invention utilizes idle civil air-defense facilities, does not need refrigeration plants without energy consumption and can always keep the environmental temperature of mushroom production at 18-22 DEG C, thereby being capable of not only ensuring coprinus comatus to grow normally but also controlling the generation of important disease palmatum bacteria of coprinus comatus so as to efficiently realize annual production of coprinus comatus; in addition, the mushroom production time can be freely controlled by controlling the soil sealing time so that the biological conversion rate is more than 80% and the yield can be improved more than 25% compared with ordinary cultivation.

The invention discloses a connecting structure of assembling type prefabricated columns and a construction method thereof, relates to an assembling type concrete structure, and aims to provide the connecting structure of the assembling type prefabricated columns, which has the advantage of enhancing the connecting strength between the prefabricated columns and a prefabricated base layer. The mainpoints of the technical scheme are that the connecting structure of the assembling type prefabricated columns comprises the prefabricated columns which are arranged on the prefabricated base layer; aplurality of reinforcing steel bars which extend out of the prefabricated base layer are arranged at the connecting position between the prefabricated base layer and each prefabricated column; the reinforcing steel bars penetrate through the prefabricated base layer; prefabricated holes for the reinforcing steel bars to insert are formed in each prefabricated column; a soil sealing layer is arranged at the connecting position between the outer wall of each prefabricated column and the prefabricated base layer; a grouting hole which communicates with the prefabricated holes and a plurality of mortar outlet holes which extend to the lower ends of the prefabricated holes are formed in the lower end of each prefabricated column; the grouting hole is positioned in the upper end of the mortar outlet holes and the mortar outlet holes are positioned in the upper end of each soil sealing layer; rubber plugs which are used for sealing the grouting hole and the mortar outlet holes are arranged oneach prefabricated column.

The invention discloses a composite weed killer special for a sugarcane field, taking agroxone, diuron and ametryn as main active components, and manufactured by fully mixing following materials in a mixer according to mass percent: 10-20% of agroxone, 5-15% of diuron, 40-60% of ametryn, 1-5% of wetting agent, 1-5% of dispersant and the balance of filler. According to sugarcane weed occurrence regularity, combined with the pesticide mixing principle, the composite weed killer has wide herbicide controlling spectrum, high effect, fewer dosing times, low use cost and safety to sugarcanes; and the composite weed killer has more than 90% of annual single-dicot weed prevention effect, plays a role in soil sealing after being applied, inhibits germination of later weeds, is safe for the sugarcanes and can effectively ensure health growth of the sugarcanes.

The invention relates to a small-sized rice liquid fertilizer deep applicator. A charging basket is arranged above a frame of the fertilizer deep applicator; support legs are arranged below the frame; the lower end of each support leg is connected with a carriage which is provided with a slot; the slot is movably provided with a copying opener which is provided with a fertilizer applying channel; the outlet of the fertilizer applying channel is formed on the rear lower part of the copying opener; after the copying opener is cut in the soil, fertilizer solution is applied to the deep part of the soil through a fertilizer delivery pipe and the fertilizer applying channel; and the fertilizer solution is sealed in the field soil by a soil sealing block so as to supply nutrients to rice. The fertilizer deep applicator can effectively avoid the wastage of the fertilizer caused by field water overflow due to rain, or artificial drainage when the fertilizer is directly spread in field water, so that the effects of improving fertilizer efficiency, reducing area source pollution and increasing both production and income are achieved.

The invention belongs to the technical field of pesticides and discloses a weeding composition for a wheat field and a medicinal preparation of the weeding composition. The weeding composition for the wheat field provided by the invention is composed of following ingredients in parts by weight: 20-80 parts of isoproturon, 2-20 parts of diflufenican and 2-20 parts of flufenacet. By utilizing different acting mechanisms of three weedicides including isoproturon, diflufenican and flufenacet, the weeding composition for the wheat field has the advantage that isoproturon, diflufenican and flufenacet are compounded to have a synergistic effect; a ternary mixture can be used for carrying out soil sealing treatment before wheat seedlings grow and carrying out steam-leaf treatment before winter; the weeding composition has a good prevention effect and a long lasting effect, can be used for preventing and treating weeds of the wheat field and can be prepared into a suspending agent, wettable powder or water dispersible granules.

The invention discloses a cultivation method for lodging-resistant and high-yield corn. The method comprises the specific steps of soil ploughing, application of base fertilizer, soil sealing and soilpreparation before sowing, fine selection of seeds, sowing at the proper temperature, regular leaf and seedling management, topdressing of hole applied fertilizer at the right time, reasonable irrigation, prevention and treatment of insect pests and diseases and prevention and removal of weeds. According to the cultivation method for the lodging-resistant and high-yield corn, corn plants plantedby the method are developed in root system, and the activity of the root systems is enhanced; corn stems are short, strong and tough, corn lodging is greatly reduced, and the effect of preventing cornlodging is obvious; the color of corn leaves is deepened, photosynthesis of the leaves is enhanced, and the corn yield is greatly increased.

The invention relates to a first water discharge and then sealing and blocking plate carrying type road embankment, which is in a trapezoidal shape from bottom to top and sequentially comprises a plastic water discharge plate, a water discharge pad layer, slurry seepage prevention isolation layers, a shallow layer curing cement soil plate, a road embankment filling material and a pavement, wherein the top of the plastic water discharge plate is arranged in the water discharge pad layer, temporary side trenches are arranged at the two sides of the shallow layer curing cement soil plate, the slurry seepage prevention isolation layers are paved in the temporary side trenches, in addition, the temporary side trenches are filled with cement soil sealing and blocking bodies, and the bottom elevation of the cement soil sealing and blocking bodies is lower than the bottom elevation of the water discharge pad layer after the pre-pressure period completion. The first water discharge and then sealing and blocking plate carrying type road embankment has the advantages that the manufacturing price is low, the construction speed is high, the soil body water discharge solidification is accelerated, the sedimentation after the construction is small, and the like. The invention also discloses a construction method of the first water discharge and then sealing and blocking plate carrying type road embankment.

The invention discloses a refuse landfill sealing top layer and a preparation method and application thereof, and belongs to the technical field of landfill. The sealing top layer comprises at least three functional layers, the functional layers comprise a water storing layer, a guiding discharging layer and a low-permeability layer which are successively stacked from outside to inside, and the water storing layer is mainly composed of recycled fine aggregates with the particle size less than 5 mm; the guiding discharging layer is mainly composed of recycled coarse aggregates with the particlesize between 10 mm-40 mm; the low-permeability layer is mainly composed of natural soil; the processing of building rubbish is conducted to obtain the recycled fine aggregates and the recycled coarseaggregates. The sealing top layer is composed of the above particle size combinations of the recycled building rubbish aggregates and the natural soil, the seepage-proofing and leakage stopping functions are effectively achieved, rubbish is filled with rubbish, the recycle of the building rubbish is achieved, the capacity occupied by the building rubbish in a landfill is released, and compared with a traditional soil sealing top layer, the refuse landfill sealing top layer has the advantages that the consumption of soil resources is greatly reduced, the construction is simple, raw materials can be conveniently obtained, the cost is low, and the durability is good.

The invention discloses a multifunctional full-mulch seeder which is applicable to seeding and planting work of crops in dry farmlands and paddy fields and can finish work of groundbreaking fertilization, sowing, full mulching, laying, trickle irrigation and the like for one time. The multifunctional full-mulch seeder is dragged by a power machine. A fertilizer apparatus, an opener and ground wheels are arranged at the lower side of a rack; a fertilizer box and a seed box are arranged at the upper side of the rack; a speed changing box is arranged in the middle of the rack; symmetrical soil sealing boxes are arranged at the two sides of the speed changing box and are integrally provided with soil raising chains; the soil raising chains are provided with a plurality of soil digging devices; soil sealing covers and soil guiding boxes are arranged at the back sides of the soil sealing boxes; the soil sealing covers are internally provided with soil dividing devices; and hoppers are arranged at the lower sides of the soil sealing covers. Soil dug by the soil digging devices enters the soil sealing covers through the soil raising chains and is directly scattered to two side edges of a mulching film after passing through the soil guiding boxes; and the two side edges of the mulching film are pressed by the soil to realize full mulching. Millet seeds, such as foxtail millet seeds, can be sowed after being discharged from the seed box at the upper side of the rack pass through an opening ploughshare; and seeding wheels can precisely sow large-grain seeds of corns and the like and can sow two rows or a plurality of rows of seeds at the same time, so that the production efficiency is high.

The invention provides a short-rotation sprout forest drought-resistant anti-freezing cultivation and management method for paper mulberry. The method mainly includes the technical measures of seedling growing in a semi-underground nursery pond, planting in a planting furrow, stumping every year, stubble reserving for overwintering, soil sealing burying and the like. The planting region of the fast-growing paper mulberry is greatly extended towards the north and the west. The method provides a new technological support for building a large-area short-rotation fast-growing paper mulberry sprout forest pulp raw material site in dry and cold regions.

The invention relates to a Karst region ductile anti-collapse roadbed structure and a construction method of the Karst region ductile anti-collapse roadbed structure. Through the use of reticular gabion structures, the ductile anti-collapse capability of the roadbed structure is greatly improved. When small-size collapse pits with the diameter smaller than 1m appear on the ground, no influence is generated on the reticular gabion structures; and when small-size collapse pits with the diameter being 1m to 3m appear on the round, the gabion structures can fill and block Karst channels, so that the collapse slowly stops. When larger collapse pits appear on the ground, slumps occur at a small part of the gabion structures, and as the reticular gabion structures are mutually bound by steel bars, so that large-area slumps cannot occur; besides, a continuous arch structure has better capability of adapting to unfavorable geology, so that the roadbed structure still has good stability to support the pavement structure, thereby preventing collapse. Therefore the Karst region ductile anti-collapse roadbed structure is suitable to be popularized and used in a large area. The construction method comprises the steps of sequentially laying a cement soil sealing layer, the reticular gabion structures, a soil pad layer and the continuous arch structure, and the Karst region ductile anti-collapse roadbed structure is finally obtained.

The invention relates to the technical field of traditional Chinese medicinal material planting, in particular to traditional Chinese medicinal material seeding and watering integrated equipment. Thetraditional Chinese medicinal material seeding and watering integrated equipment comprises a vehicle frame, universal wheels, a drilling box body, a buffering mechanism, a feeding hole, a material hopper, a feeding hose, a motor, a lead screw nut seat, a ball lead screw, a lead screw fixing plate, a drilling rod, a soil expanding mechanism, a guide post, a sliding post, a water tank, a water inlet, a first air cylinder, a rotating shaft, a stirring mechanism, a stirring driven mechanism and a soil sealing and watering mechanism; the buffering mechanism is fixedly connected to the bottom of thevehicle frame; the universal wheels are hinged to the lower end of the buffering mechanism; the material hopper is hinged to the inner wall of the top end of the drilling box body; a seed feeding hole is formed in the top of the drilling box body and is positioned right above the material hopper. According to the traditional Chinese medicinal material seeding and watering integrated equipment, more soil in the hole which is drilled by the drilling rod can be transported to the ground through the soil expanding mechanism, which facilitates soil sealing after traditional Chinese medicinal material seeds are seeded; the traditional Chinese medicinal material seeding and watering integrated equipment is simple in structure, convenient to operate, high in planting efficiency and high in seed germination rate.

The present invention belongs to the field of vegetable cultivating technology, and is especially chili seedling water transplanting process without seedling revival. The chili seedling water transplanting process includes the following steps: 1. applying organic fertilizer, bedding and spreading mulching; 2. forming 10-20 cm deep funnel shaped hole for transplanting chili seedling with a wood rod of 3-4 cm diameter; 3. pouring water to the hole to reach local water saturation; 4. transplanting chili seedling in half an hour after watering and sealing the opening in the mulching with fine soil; and 5. checking the opening for well sealing to ensure the natural survival of the transplanted chili seedling. The process is simple, water saving, high in seedling survival rate, high in product yield and quality, and suitable for transplanting various kinds of vegetable.

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.

The invention relates to a weed control method of a mechanical hill-drop drilling paddy field and belongs to the technical field of paddy rice. The method includes the steps of firstly, leveling soil before sowing; secondly, processing seeds before sowing; placing the processed seeds in a direct sowing machine for sowing, and synchronously spraying soil sealing weed killer; spraying stem-leaf weed killer to control paddy field weeds about 30-40 days after sowing and before the five-leaf stage of paddy rice, irrigating water of 3-5cm one day after the spraying, and keeping 5-7 days, wherein the paddy field is free of a water layer during the spraying. By the arrangement, the method has the advantages that time and labor are saved, operation is facilitated, the weed killer does not restrain paddy rice seedlings, the stem-leaf weed killer is used to control the grassy weeds such as barnyard grass and moleplant at the 5-6-leaf stage of the paddy rice, broad-leaf weeds are controlled at the same time, and the method is high in weed removing efficiency, cost saving, convenient to use, and the like.

The invention discloses a combined treatment method for reclaiming land from the sea. The combined treatment method comprises following steps: A, extracting slurries and injecting slurries with flocculating agents and / or lime; B, inputting slurries into a stirrer for uniform stirring; C, inputting uniformly-mixed slurries into a vacuum pre-loading slurry pool; C, equipping the vacuum pre-loading slurry pool with vertical drainage boards, connecting upper ends of the vertical drainage boards to an drainage pipeline which is connected with the outside, covering the top of soil in the vacuum pre-loading slurry pool and the drainage pipeline with sealing cloth, adopting a sealing structure and soil sealing for the edge of the sealing cloth, connecting a vacuum pump with the drainage pipeline for extracting water in soil. The combined treatment method for reclaiming land from the sea has following beneficial effects: 1, the drainage boards are not easily blocked; 2, soil bearing capacity after processing is increased and sedimentation is reduced.

The invention discloses a combined treatment method for dehumidification and vacuum preloading of dredger fill and slurry flocculation. The combined treatment method comprises following steps: A, injecting slurries and adding slurries with flocculating agents and / or lime; B, conveying slurries to a separation device for soil-water separation and separating slurries processed by the separation device to form water and soil, extracting and discharge water and conveying soil into a vacuum-preloading water-reduction pool; C, equipped the vacuum-preloading water-reduction pool with vertical drainage boards, connecting upper ends of the vertical drainage boards with a drainage pipeline connected with the outside, covering the top of soil in the vacuum-preloading water-reduction pool and the drainage pipeline with sealing cloth, adopting a sealing structure and soil sealing for the edge of the sealing cloth, connecting a vacuum pump with the drainage pipeline for extracting water in soil. The combined treatment method for dehumidification and vacuum preloading of dredger fill and slurry flocculation has following beneficial effects: by means of chemical and physical methods, water-reducing operation is carried out to soil for two times; higher water-reducing efficiency is obtained and is up to more than 40%; processing capacity of slurries is large; and the great significance in actual operation is obtained.

The invention relates to a silymarin field herbicide and a preparation method and a use method thereof relates to a weeding composition and a preparation method and a use method thereof, and aims to solve the technical problem that an existing silymarin field herbicide is poor in long residual action. The silymarin field herbicide is composed of metolachlor, pendimethalin, dimethylbenzene, triethanolamine, farming milk 1601, NP-7, T-20, S-80, urea-formaldehyde glue, sodium dodecyl benzene sulfonate, ethylene glycol, organic silicon defoamer and deionized water. The preparation method comprises the following steps: firstly adding the pendimethalin, the metolachlor, the dimethylbenzene, the triethanolamine, the farming milk 1601, the NP-7, the T-20, the S-80 and the deionized water into a high shear kettle for shearing, adding the urea-formaldehyde glue into a reaction kettle for shearing, adding the sodium dodecyl benzene sulfonate for shearing, transferring to a stirring kettle, adding the ethylene glycol and the organic silicon defoamer, warming and stirring to obtain the herbicide. The use method is as follows: the soil sealing treatment is carried out after silymarin is planted and before seedlings grow.

The invention relates to a rice seedling transplanting device. A conical soil breaking device breaks the soil, and a seedling gripping device grips seedlings for transplanting after soil breaking, thereby avoiding the problem that the seedlings jetted or thrown cannot be inserted into the soil in the prior art; the soil breaking device and the seedling gripping and transplanting device are integrated, so that an additional trenching device is not needed; the bottom of the soil breaking device is closed by a soil sealing plate and a soil pressing device at the bottom of the soil breaking deviceto prevent the soil from entering a seedling box during soil breaking; after the soil is broken to a certain depth, the soil sealing plate is lifted up to transplant seedlings; and when the seedlinggripping device rises, an ejector rod ejects a seedling feeding plate to tilt so as to complete automatic feeding and gripping of seedlings.

The invention discloses a planting method for preventing sclerotinia rot of colza. The planting method is characterized by comprising the following steps: (1) selecting disease-resistant improved varieties and implementing seed sorting by salt water and seed dressing by agents; (2) selecting a seedbed and disinfecting; (3) performing paddy-upland rotation and soil deep cultivation; (4) sowing early in right time and carrying out rational close planting; (5) performing wide-line deep-furrowed cultivation, and reserving blank lines; (6) conducting scientific and reasonable fertilization; (7) performing intertillage ridging and carrying out soil sealing in spring; (8) developing prevention at critical time. The sclerotinia rot resistance of colza planted by the planting method can be remarkably improved, the yield and the quality of colza are improved, and the efficiency is improved significantly.

The invention belongs to the technical field of soil sealing machines, and provides a novel impurity removing soil sealing machine. The soil sealing machine comprises a machine frame; a soil shovelingdevice is arranged on the machine frame; a soil sealing groove is also formed in the machine frame; the soil sealing groove is divided to a soil sending groove and a soil discharging groove by a partition plate in the middle; a depth limiting wheel is also arranged at the bottom of the machine frame; the soil shoveling device comprises two rotary soil taking rakes separately arranged at two sidesof the lower part of the machine frame; a speed reducer is also arranged on the machine frame; an input shaft of the speed reducer is connected with a power source; two output shafts of the speed reducer are separately connected with the rotary soil taking rakes at the two sides; and the two rotary soil taking rakes are separately in transmission with a soil sending auger and a soil discharging auger through chain wheels and chains. According to the technical scheme, the problem that no soil sealing machine capable of automatically removing impurities and sealing soil exists in the prior artcan be solved.

The present invention relates to a maize stalk-cutting stub-breaking and field-returning machine. It adopts a shaving cutter to shave-cut the ground-surface portion of maize stalk, utilizes a conveying mechanism to convey the stalk into stalk-pulverizing cutter to cut the stalk, then adopts a stub-breaking rotary cutter to implement stub-breaking soil-sealing and moisture retention operation.