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373 results about "Land leveling" patented technology

Agricultural multifunctional cultivator

The invention discloses an agricultural multifunctional cultivator. The agricultural multifunctional cultivator comprises a mounting plate, a cultivating device, a sowing and fertilizing device, a land leveling device and a water spraying device, the cultivating device comprises an electric push rod, a first supporting plate, a furrow plough and a rotary tillage plough, the sowing and fertilizingdevice comprises a seed box, a fertilizer box, a feeding roller, a discharging roller and a land digging hoe, and the water spraying device comprises a water box, a water pump, a second motor, a firstgear, a second gear and an L-shaped pipe. The agricultural multifunctional cultivator is provided with the cultivating device, the furrow plough turns soil up, the rotary tillage plough smashes largebulky soil, by controlling a telescopic rod of the electric push rod to extend or retract, the height of the furrow plough and the height of the rotary tillage plough can be adjusted, and then the cultivating depth can be adjusted to meet different agricultural requirements; the cultivator is provided with the sowing and fertilizing device, sowing and fertilizing are conducted while cultivating is conducted, the work efficiency is improved, and the labor intensity of staff is lowered; the cultivator is provided with the water spraying device, the spraying range is expanded, and the work efficiency is improved.
Owner:ANHUI HUARUI PHARMA TECH DEV CO LTD

Reclamation method for rural residence lands on coastal saline land region

The invention discloses a reclamation method for rural residence lands on a coastal saline land region. The method includes the first step that building rubbish of the waste residence lands is cleared out; the second step that land leveling is performed on a reclamation area; the third step that water-salt control is performed, according to road planning, the treated reclamation area is divided into land blocks, new irrigation and drainage projects are constructed, and subsurface drainage pipes, water-collecting pipes and water-collecting wells are laid; the fourth step that biological improvement projects are constructed, organic fertilizer and planting green manure are applied to increase the content of organic materials and microorganisms in soil, improve the activity of the soil and complete soil reclamation of the residence lands. According to the method, the residence lands wasted in rural districts are reclaimed into cultivated lands, the utilization rate of the lands is improved, the agricultural acreage is increased, the technologies of land arrangement, water-salt control and biological improvement are organically integrated, and therefore the soil productivity of the residence land can be effectively recovered and farm land ecological environment can be improved. Thus, the reclamation method for the rural residence lands on the coastal saline land region is a practical technology method.
Owner:TIANJIN AGRICULTURE COLLEGE

Channel drainage basin renovation planning simulating method and system based on OSG

ActiveCN105760581AIntuitive Decision SupportSpecial data processing applications3D modellingTerrainLandform
The invention provides a channel drainage basin renovation planning simulating method and system based on an OSG. The method comprises the following steps that a three-dimensional channel drainage basin terrain model based on a digital elevation model (DEM) is constructed, the soil landform layers and the landform characteristic lines of the channel drainage basin are extracted, recognized and visually simulated, the two-dimensional section and the three-dimensional section of the channel drainage basin terrain are dynamically extracted and drawn and rendered in real time, land levelling rendering is performed through the earth volume calculated by the DEM, multiple crop and plant models, basic farmland farming modes and engineering facility models are built, and dynamic loading, replacing, moving and deleting of the models are controlled through a man-machine interaction mechanism. According to the method, the problems of extracting, recognizing and visual stimulating on the important landform features and the soil landform layers of the channel drainage basin and extracting and drawing on the terrain sections are effectively solved, the true conditions of the natural terrain of the channel drainage basin are presented, and a visualization decision making support method for performing man-machine coordination design in the channel drainage basin renovation planning process is supplied.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS

Main valve of small type hydraulic excavator with energy-saving excavation and high-efficient land leveling

The invention discloses a main valve of a small type hydraulic excavator with energy-saving excavation and high-efficient land leveling, an inlet of a land leveling mode selecting valve (4) is connected with a bulldozer shovel linkage (3), one outlet of the land leveling mode selecting valve (4) is connected with a moving arm 2/breaking hammer linkage (5), the other outlet is connected with an oil return passage T2, one end of a passage (12) is connected with a dipper handle 1 linkage (6), and the other end is connected with a bucket linkage (10). The land leveling mode selecting valve (V4) is increased in the main valve, when the pilot pressure is acted on the land leveling mode selecting valve, the land leveling mode is started, and oil of a P3 pump can be supplied for a dipper handle and a bucket, thereby accelerating the land leveling speed and realizing the high efficiency; when in the excavation mode, the main valve can change the way of leading the traditional P3 pump to participate in confluence, use a P1 pump and a P2 pump for realizing the confluence to the dipper handle, and supply the oil to the dipper handle and the moving arm, thereby avoiding the excess flow loss of the P3 pump and achieving the energy-saving effect.
Owner:SUNWARD INTELLIGENT EQUIP CO LTD

Land leveling system for paddy field rotary cultivator

The invention discloses a land leveling system for a paddy field rotary cultivator. The land leveling system comprises a left-side pull rod, a middle pull rod, a right-side pull rod, a land leveling unit, a driving unit, a hydraulic operation mechanism and a controller, wherein the hydraulic operation mechanism is used for manipulating the land leveling unit; the controller is used for controlling the hydraulic operation mechanism. The land leveling system for the paddy field rotary cultivator has the advantages that a land leveling device with an automatic leveling function is additionally arranged on a rotary cultivator according to agronomic requirements of rice cultivation, so that a land leveling plate is positioned in a horizontal plane all the time in the cultivating and land-leveling processes, therefore the influence to the land leveling device from a tractor due to different mud foot depths and own vibration during a proceeding process is reduced, and the land leveling precision is further improved. The land leveling system for the paddy field rotary cultivator can be used with the existing paddy field rotary cultivator for performing rotary cultivation and soil preparation on paddy fields in a matching manner, so that the land leveling effect of the paddy field rotary cultivator is improved; meanwhile in comparison with a paddy field laser land leveler, the land leveling system for the paddy field rotary cultivator has the advantages of low cost and convenience in popularization and application.
Owner:HUAZHONG AGRI UNIV

Variable-amplitude foldable land leveler for dry land

The invention discloses a variable-amplitude foldable land leveler for a dry land. The variable-amplitude foldable land leveler for the dry land comprises a traction frame, a machine frame, a land leveling shovel and a walking mechanism. The traction frame is connected with the machine frame. The land leveling shovel and the walking mechanism are arranged on the machine frame. The land leveling shovel comprises a main shovel blade, two auxiliary shovel blades and two variable-amplitude shovel blades. Each end of the main shovel blade is sequentially connected with one auxiliary shovel blade and one variable-amplitude shovel blade. The main shovel blade is hinged to the auxiliary shovel blades. A folding power mechanism is arranged between each auxiliary shovel blade and the corresponding variable-amplitude shovel blade and pushes the auxiliary shovel blade to conduct folding movement towards the front of a shoveling surface. Each folding power mechanism is located on the back side of the shoveling surface. Each folding power mechanism comprises a telescopic cylinder, wherein a cylinder block of the telescopic cylinder is hinged to the main shovel blade, and a telescopic rod of the telescopic cylinder is hinged to the corresponding auxiliary shovel blade. Each auxiliary shovel blade and the corresponding variable-amplitude shovel blade are connected through a detachable structure. The amplitude of the land leveling shovel of the land leveler can be adjusted, and therefore transportation is convenient.
Owner:SOUTH CHINA AGRI UNIV

Leveling control system and method of land leveller scraper

The invention discloses a leveling control system of a land leveller scraper. The system comprises a hydraulic system, and also comprises a detection sensor, a microcontroller and a proportional flow valve driving circuit which are connected in sequence, wherein the detection sensor detects the real-time horizontal tilt angel theta of the scraper; the microcontroller computes angular speed omega according to the horizontal tilt angel theta of the scraper through an I-PD control algorithm, which is taken as a reference value and is transmitted into a nonlinear limit curve; if the value omega exceeds the working range of the nonlinear limit curve, the practical output control angular speed omegaref is equal to omegaMAX, wherein omegaMAX is the maximum angular speed provided by the hydraulic system; otherwise omegaref is equal to omega; omegaref is taken as a PWM duty cycle value, obtained control voltage U0 is sent to the proportional flow valve driving circuit comprising a PWM switching voltage controlled constant flow source circuit, and a proportional flow valve is driven, so that the hydraulic system levels the scraper. The system and the method can effectively eliminate the phenomenon of overshoot of the scraper, improve the response speed and the control accuracy of the scraper, reduce system power loss and mechanical wear, and improve the land leveling efficiency.
Owner:SOUTH CHINA AGRI UNIV

Land leveling method based on GNSS

The invention provides a land leveling method based on GNSS (Global Navigation Satellite System). The method comprises the following steps: determining the general trend of a planned path through analyzing the terrain of the global planning of a target land parcel according to acquired terrain information and a terrain environment model of the target land parcel; then, carrying out local adjustment for avoiding the empty load and full load of ground leveling equipment through the calculation of excavation and filling earth volume based on the terrain environment model and the terrain information, namely, determining the target planned path of the traversing target parcel through the combination of the setting rule based on the calculation of the excavation and filling earth volume and thejudgment of empty/full load; and finally, guiding the ground leveling equipment to carry out target land parcel leveling operation according to the planned path. According to the method provided by the invention, through reasonable ground leveling path planning, the empty load, full load, repeated leveling and omissive leveling of the ground leveling equipment can be effectively avoided or reduced, the land leveling can be effectively guided, and thus the land leveling efficiency is improved.
Owner:CHINA AGRI UNIV

Vertical milling type land leveler

The invention relates to a vertical milling type land leveler which comprises a frame-shaped stand (1), a left front wheel (2), a right front wheel (3), a rear wheel (4) and a drive steering device, wherein the left front wheel (2), the right front wheel (3) and the rear wheel (4) are arranged on the stand (1); the stand (1) is also provided with a land leveling device and a leveling control device; the vertical milling type land leveler is characterized by further comprising a soil throwing device arranged on the stand (1); the soil throwing device is arranged behind the land leveling device; a soil inlet (5) at the lower end of the soil throwing device and the lower end of the land leveling device are arranged in an opposite way; and a soil outlet (6) of the soil throwing device is arranged above one side of the stand (1) and is arranged outward. The vertical milling type land leveler has the beneficial effects that the soil throwing device and the leveling control device are added onto the land leveler, so that land leveling operation and soil throwing operation are automatically carried out on the occasion with a narrow operating surface, the labor force is saved, and the working efficiency is improved; and furthermore, the vertical milling type land leveler is simple in structure and greatly improves the land leveling accuracy.
Owner:HEBEI UNIVERSITY

High-yield peanut planting method

The invention belongs to the field of agriculture and relates to a high-yield peanut planting method, in particular to a peanut planting method which is scientific and reasonable and realizes high yield. The peanut planting method comprises steps as follows: (1), application of a base fertilizer; (2), land leveling: requirements for the land leveling are higher than those for an open peanut field, and bedding leveling is required; (3), selection of good seeds: peanut pods are selected firstly before sowing; (4), seed drying before sowing: the seeds are dried before sowing, and germs on skin of the pods can be killed; (5), spraying of a herbicide: 150 g of 72% dual emulsion or 48% Lasso emulsion is used for each mu of land and blended with 50 kg of water after sowing and soil covering, and the mixture is uniformly sprayed to beddings; (6), covering of micro films: after spraying of the herbicide, the land is immediately covered with the films; (7), breaking of the films for releasing of the seedlings: the seedlings of the peanuts can emerge successively in 10-15 days after sowing, cross-shaped small holes are formed in the positions, corresponding to the seedlings, of the mulching films with fingers or blades, and the seedlings are guided out of the films; (8), exposure and hardening of seedlings: peanut leaves are exposed after full stand of the peanuts.
Owner:庄芳

Method for changing deserts into fertile land oases through ecological desertification control

InactiveCN108718584ASolve the problem of wind and sand damageEnsure safetyClimate change adaptationExcrement fertilisersWater sourceMicrobial agent
The invention belongs to the technical fields of desertification control and desertification agricultural development and creates technical principle and method for desertification control. Accordingto the method, on the premise of making regional planning and land leveling, measures of applying an I type improver with adsorbing, water-retaining, fertilizer-retaining and impermeable functions toa groove which is excavated according to a square grid, backfilling the groove to be flat as well as applying an II type improver to the surface layer of the desert, performing rotary tillage and thenleveling are taken well; the formulas of the improvers are prepared through scientific combination of various industrial and agriculture organic waste, an excellent organic carbon fertilizer and an agricultural composite microbial agent according to the circular economy development concept and the principle of reducing treatment cost as much as possible; moreover, the wind-proof and sand-fixing measures are taken well by building greenhouses in a staggered way and planting green barriers; and a water source and efficient water-saving irrigation scheme is formulated by combining the specific condition of water resources, high-quality agricultural scientific and technical resources at home and abroad are integrally utilized, and the economic and social benefits of changing the desert into the fertile land are greatly increased.
Owner:孙长清 +2
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