185 results about "Slope field" patented technology

The invention relates to the technical field of water environment ecological restoration, in particular to a system for restoring bio-ecological environment of a micro-polluted riverway, wherein a biological contact oxidation module adopts elastic three-dimensional packing or combined packing, the riverway coastal area is provided with emergent aquatic plant floating floors or floating plant floating floors, the upstream and the downstream of the riverway are provided with floating plant purification zones, and the water surface coverage of the floating floors is between 15 and 20 percent; both coasts of the riverway are plated with emergent aquatic plants and the water surface is planted with floating plants, and water areas with more than two times of transparency are plated with submerged vegetations; and sloping fields on both sides of the riverway are planted with un-germinated poplar or willow branches through cottage; and simultaneously, the poplar or willow branches are embedded into sloping banks shallowly and horizontally according to contours in a mode of being bundled up into a bunch of fascines at different positions of the sloping fields. Compared with the prior art, for the ecological restoration and construction, the system achieves self-purification, self-regulation and self-sustaining of pollutants within certain concentration range, and is an effective path for improving water quality under the condition that basin-wide pollutant cutoff cannot be performed at present.

The invention discloses a method for restoring vegetation on barren mountains and sloping fields in arid and semi-arid regions. The method comprises the following steps of: building a horizontal ditch in an arid and semi-arid barren mountain / sloping field region along a contour line; building semi-arc-shaped water collecting ridges in the horizontal ditch in an earth furrow spacing way, wherein a ditch is formed in the two water collecting ridges and is taken as a seedling planting region; and planting arid and semi-arid region greening trees in a seedling planting region and covering a covering layer. The technical scheme of the invention is suitable for arid and semi-arid regions, and has the advantages of easiness for operating, low cost, high wood survival rate, quick vegetation growth and good water and soil holding effect.

The invention relates to the fields of environmental engineering and ecological engineering. An ecological check dam prevention and control system for three gorges reservoir region hilly land ravine agricultural non-point source pollution is characterized in that multiple levels of ecological check dams are in trapezoidal distribution with natural fall from high to low along with the hilly land; each level of ecological check dam consists of a water storage regulating pond, a constructed wetland and a check dam main body, which are arranged sequentially according to the water flow direction; the water storage regulating pond is communicated with an overflow port in the previous level of the check dam main body. The system can effectively intercept and control the hilly land ravine agricultural non-point source pollution of the drainage basin, can reduce water and soil loss, can perform water-harvest irrigation, can reduce attenuation of channel nutrients before and after rainfall on sloping fields, and can realize ecological interception of agricultural non-point source pollutants.

The embodiment of the invention provides an unmanned aerial vehicle obstable avoidance control method, flight controller and unmanned aerial vehicle. The method includes the steps of: obtaining distance between an unmanned aerial vehicle (100) and a front object in a flight direction of the unmanned aerial vehicle; and controlling the flight height of the unmanned aerial veilce (100) according to the distance. Through the distance between the unmanned aerial vehicle (100) and the front object, the flight height of the unmanned aerial vehicle (100) is controlled, as the flight height increases, the distance between the unmanned aerial vehicle (100) and the front object inceases therewith, and as the unmanned aerial vehicle (100) flies forward, when the distance between the unmanned aerial vehicle (100) and the front object is smaller than a safe distance, the flight height of the unmanned aerial vehicle (100) is increased, so that an agricultural unmanned aerial vehicle can increase the flight height as terrain rises in environments of hills, sloping fields and terraced fields, thereby ensuring that the agricultural unmanned aerial vehicle can work normally.

The invention relates to a rainwater collection and water-saving irrigation pollution control system and method for a sloping field, wherein contour no-tillage straw mulching and contour plant hedgerow measures, rainwater collection cellars and gravity trickle irrigation equipment are comprised. The rainwater collection and water-saving irrigation pollution control method comprises the following steps of: designing 2-4 rainwater collection cellars from a slope top to a slope bottom according to the terrain of a river basin sloping field, wherein the sloping fields which is positioned above the rainwater collection cellars and subjected to the contour no-tillage straw mulching and contour plant hedgerow measures are taken as rainwater collection surfaces, and the rainwater collection cellars are mainly built in a semi-underground way, provided with two rainwater outlets along the ground and cellar bottoms and respectively connected with 2-4 gravity trickle irrigation equipment; and carrying out partitioning gravity trickle irrigation on sloping farmlands positioned below the rainwater collection cellars. The invention can effectively reduce the pollution of water losses and soil erosion on a water body by carrying out space-time integrated regulation and control on the water losses and soil erosion of the sloping field and the redistribution of collected rainwater according to the change of raining time and the characteristics of the sloping field, and solve the problem that the sloping field can not be irrigated in a dry season through the redistribution of the collected rainwater, thereby enhancing the multiple-cropping index and the output of crops of the sloping field; and in addition, the invention can be widely used for the integrated management and control of therainwater for the sloping fields in the southwest regions in China.

The invention discloses a fertilization method of Chinese jujube trees planted on a hill land and a sloping field in a drip irrigation way. The method comprises the following steps: arranging a slow-release fertilization tank just below a water outlet of a drip irrigation belt or a drip irrigation tube which is arranged around the jujube tree; putting fertilizer into the slow-release fertilization tank while fertilizing, then covering the fertilizer with powdered straw so that irrigation water flow from the drip irrigation belt directly drips into the slow-release fertilization tank, passes through the powdered straw layer and dissolves the fertilizer and the fertilizer slowly infiltrates into a root layer of the jujube tree around the slow-release fertilization tank along with the water. In addition, bottom of the slow-release fertilization tank is impervious, which reduces infiltration speed and infiltration depth of fertilizer water and has the function of the upper straw on preventing evaporation, can improve utilization ratio of the fertilizer and reduce consumption of the fertilizer, and benefits to increase yield of the red jujubes. Compared with the traditional fertilization method, the present fertilization method helps increase the fertilization efficiency by 2-3 times and improve the fertilizer efficiency by 26%. The fertilization method has very important actual meaning and use value for promoting a high-efficiency water-saving drip irrigation technology and developing economic forest industries of China, especially fruit industries and forest industries in areas in an acute shortage of water of a mountainous region.

The invention relates to a power station arrangement method, in particular to a mountain land photovoltaic power station arrangement method. According to the mountain land photovoltaic power station arrangement method, Google globe software and ArcGIS software are used for completing sloping field modeling, a TIN topographic map is generated, and therefore manpower consumption and material resource consumption are reduced; analogy computation is carried out on the TIN topographic map of a mountain land area through sunlight analysis software so that the generating-capacity computing accuracy can be improved; the mountain land trend is sufficiently depended, photovoltaic arrays are arranged along a mountain, the amount of steel used in supports and the occupied area are reduced, the construction difficulty is reduced, a large amount of capital is saved, and influences on the generating capacity are not serious; shadow contour analysis is carried out on the TIN topographic map of the mountain land area through the sunlight analysis software, locating points of the arrays are determined, and the effective method which is rapid and convenient to use is provided for northern hemisphere sloping field photovoltaic arrays.

An automated deflectometry system and method for assessing the quality of a reflective surface for use in a concentrating solar power plant. The deflectometry system comprises a holding fixture for mounting a heliostat reflector opposite a target screen having a known pattern. Digital cameras embedded in the target screen take pictures of the known pattern as reflected in the surface of the reflector. Image processing software then detects the features of the pattern in the reflector images and calculates the slope profile of the reflective surface. The slope field can be calculated by comparing the images of the reflective surface to those of a reference surface. Based on the slope profile of the reflective surface, a ray tracing calculation can be performed to simulate flux as reflected from the reflective surface onto a receiver and a quality metric can be ascribed to the heliostat reflector. The result of the quality assessment can displayed using a graphical user interface on an automated assembly line.

The invention discloses a composite method for controlling the rill erosion of slope farmlands, which realizes soil and water conservation of the slope farmlands by utilizing comprehensive engineering measures and plant measures, and relates to the fields of the improved utilization of sloping fields and the prevention and control of soil erosion. By means of the theory that rills are eroded by sloping surfaces to form critical slope length, terrace banks are constructed by separation distance which is less than or equal to Lc among the sloping surfaces along a contour line according to the critical slope length formed by the rill erosion by the sloping fields, namely the rills are eroded under the condition that the specific slope farmlands are less than the current gradient to generate the separation distance with critical slope length values, the terrace banks are designed and constructed along the contour line, and vegetation zones are planted on the constructed terrace banks to form a layout mode that small units of the sloping surfaces, the terrace banks of the sloping surfaces and the vegetation zones coexist; and the critical slope length Lc formed by the rill erosion by the sloping fields can be obtained by measuring on site in a mode of natural rainfall or artificial rainfall, and also can be obtained by theoretical calculation.

The invention relates to an artificial culturing method of a wild animal, in particular to a high-density culturing method of andrias davianus (giant salamanders). The high-density culturing method of the andrias davianus (giant salamanders) is characterized by comprising the following steps of: building 5-10 indoor stepped culture ponds on a sloping field with an angle of 5-10 degrees, wherein water used for circulating over flows is adopted in each culture pond; strictly filtering and purifying water quality, and keeping the temperature of the water at optimal growth temperature between 19 DEG C and 22 DEG C; and culturing the andrias davianus (giant salamanders) in a pond separation and classification way. The invention can provide optimal growth conditions for the culture of the andrias davianus (giant salamanders) and also save a large amount of energy, enhances the culture density and the survival rate, reduces the cost and increases the culture benefits.

The invention discloses a cane harvester, comprising a frame, a cutter, a transfer mechanism, a servo mechanism, a power hydraulic system and a corresponding control system, characterized in that: a lifting mechanism is set on the front end of the cane harvester. The lifting mechanism comprises a roll shaft, a hydraulic motor, wherein the roll shaft is mounted on the frame by a connection-rod mechanism and the connection-rod mechanism is driven by a hydraulic device mounted on the frame and the top end of the roll shaft is connected with the hydraulic motor by a connection axle device and a triangle wedge block is set on the lower end of the roll shaft and the hydraulic motor is driven by the power hydraulic system. The cane harvester can be used in sloping field, highland, cane lodging and bending occasion, with good cane-lifting effect and stable running and can normally work for 50-100m.

The invention discloses a control system of agricultural non-point source pollution based on hedgerows and multilayer percolation ponds. The control system comprises hedgerows, grass ditches, multilayer percolation ponds and denitrification walls, wherein the hedgerows are planted along terrace edges on a sloping field and used for wind prevention and sand fixation and water and soil erosion prevention; the grass ditches are excavated along lower edges of the sloping field and are further used for sediment precipitation and reserved water reuse; the multilayer percolation ponds are arranged between natural water areas and the grass ditches and in parallel with the grass ditches and used for absorbing phosphorus and nitrogen in water overflowing from the grass ditches; and the denitrification walls are arranged outside the natural water areas and on convergence paths of shallow surface water and used for denitrificating nitrate nitrogen in the shallow surface water into nitrogen. According to the control system and a technology of agricultural non-point source pollution based on hedgerows and multilayer percolation ponds, technologies of the hedgerows, grass ditches, multilayer percolation ponds and denitrification walls are combined, and simultaneously, a same surface runoff of non-point source pollution is processed differently in different periods in an actual application process, so that processing loads can be reduced, and nutrient substances and water resources can be recycled.

The invention aims to solve a technical problem of providing a cultivation technique by which the land can be effectively saved and the grape quality can be managed and ensured more precisely and rapidly. For solving the problem, the invention provides a grape cultivation arrangement, which comprises a planting arrangement, a tree form arrangement and a leaf curtain arrangement, wherein the planting arrangement is implemented by arranging grapes in a mode of alternately distributing large and small rows, the line spacing between small lines is controlled to 40-60cm, and the line spacing between large lines is controlled to 250-300cm. In the invention, the grape cultivation arrangement is implemented by organically integrating the tree form arrangement, the leaf curtain arrangement and theoverall cultivation arrangement of plates in a grape yard, thus, a good synergistic effect is achieved, and a formed cultivation arrangement can greatly improve the photosynthetic efficiency of the grape leaf curtain; the quality consistency and the stability of the annual output can be kept better; the raising of fruiting parts can be inhibited effectively; the degrees of normalization and standardization are high; and the grape cultivation arrangement is suitable to be applied to the cultivation of vinifera, especially suitable to be applied to the cultivation in sloping fields of a mountainous area, and the grape cultivation arrangement is also convenient for being opened to be a sightseeing grape yard.

The invention discloses a high-yield anti-fruit-cracking cultivation method for jujube, which includes selection of a proper land, closely spaced planting, dwarfing, grafting of an improved variety, covering with a greenhouse, reasonable fertilization, pesticide use with caution, and manual fruit picking. Sloping fields in hilly areas are modified into terraced fields for planting jujube trees to form a first defensive line for controlling loss of water and soil, and jujube forests are planted in a closely spaced manner and dwarfed to facilitate fruit picking and covering with plastic films for preventing autumn rain and fruit cracking. A greenhouse framework used in the method is fixed and is covered with a plastic film only on the top and the upper middle of the greenhouse framework only in rain days, sunlight and temperature difference are more sufficient than those of planting using the greenhouse only, air ventilation is facilitated, accumulation of natural nutrients is facilitated, and the one-off investment is capable of serving for a plurality of years. The method is simple in operation and easy in popularization.

The invention relates to a rare earth element (RRE) tracing method for the sediment transporting capacity of water erosion in a sloping field. The rare earth element tracing method comprises the steps: arranging an RRE tracing element consumption and a sloping field, and calculating the sediment transporting capacity by applying an REE concentration. According to the RRE tracing method, a response relationship between a sediment runoff and a length of the sloping field on the basis of an RRE method is only established, and the sediment transporting capacity under any hydrodynamic condition can be calculated. According to the RRE tracing method disclosed by the invention, the sediment runoff of any section of the sloping field can be conveniently and rapidly estimated by only arranging different RREs on the sloping field, and the accuracy and the convenience of obtaining sediment runoff data with space distribution characteristics are improved.

The invention belongs to the technical field of animal husbandry, and particularly relates to an ecological breeding method of Zhoushan white geese. The White Goose Farm selects hillsides and woodlands including mountain streams, sloping fields, paddy fields, and fishponds. The mountain streams pass through the sloping fields, run into the paddy fields, and then flow to the fishponds, and goose nests are built near the fishponds; tall and thick fast-growing plants are grown around the Farm to form living fences, and different functional regions are separated by the living fences; the different functional regions comprise a grassland grazing region, a paddy field grazing region, and a fishpond region. White geese produced with the method have better quality, and meanwhile ecology and water resource are protected from damage. The functional regions of the White Goose Farm have their respective different small ecological environments with their own features, are closely associated with one another and interdependent, and provide a good ecological environment and a rich food chain for the growth of white geese. Scientific feeding of white geese, high yield and high quality, zero emission of waste water and sewage, and ecological breeding of white geese consistent with sustainable development are realized, and more remarkable economic, social and ecological comprehensive benefits are created.

The invention introduces a method for greening areas with barren side slopes. The method comprises the following steps: (1) by studying greening suitable planting conditions of a slope body(8), a greening plan is worked out; (2) the slope body(8) is cleaned and dressed; (3) ecological anti-sliding tenons (5) or systematic ecological anchor rods (3) or bar screens (10) and systematic ecological anchor rods (3) are arranged; (4) porous degradable ecological bags (1) are evenly arranged, and link buckles(2) of ecological bags and porous degradable plastic blind pipes (4) are arranged between the porous degradable ecological bags(1); and (5) grass and bushes (6) are planted. The method has the advantages that: 1. the method can effectively resolve the problem of restoring ecological environment in the areas with the barren side slopes and make an individualized ecological design; 2. the method can avoid water loss and soil erosion; 3. the method can greatly prolong ecological duration; and 4. the method is simple in construction, low in cost and wide in application range.

The invention relates to a method for planting Chinese herbal medicine, in particular to a method for planting radix bupleuri. The method comprises the steps of soil selection and preparation, seeding, topdressing, watering, pest control and harvesting. The method is characterized in that firstly, loose and fertile sandy soil or silty loam good in water drainage is selected for planting the radix bupleuri, people base fertilizer is applied in the soil preparation process, raking and leveling are carried out after deep tillage, beds with the width of about 1.3 m are made, only drainage ditches are formed in sloping fields, and the beds are not made; secondly, seeding is carried out, seed propagation is carried out, spring seeding is carried out in March to May, autumn seeding is carried out in July to August, winter seeding is carried out in November, drill seeding spacing is about 20 cm, hole seeding hole spacing is 15 cm to 20 cm, seeding depth is 2 cm to 3 cm, 8 kg to 10 kg of seeds are used per mu, the seeds and the sandy soil are stirred evenly and are evenly scattered in the ditches or holes, the soil is pressed slightly after seeding, the soil can be covered with mulching films after being watered in spring seeding and autumn seeding, seeding is carried out while film breaking from now on, and the soil is covered with crop straw after seeding.

A method for intercepting soil nutrients by constructing composite grass strips in a red soil slope field comprises the following steps: (1), grass variety constitution and selection: seeds of at least two grass varieties having different functions and being capable of remaining rapidly available nitrogen, rapidly available phosphorus and rapidly available potassium nutrients in soil simultaneously and respectively are selected; (2), land preparation and fertilization: drilling strips are formed, and fertilization is performed in the strips; (3), presowing treatment of the seeds: the grass seeds are dressed before sowing; (4), sowing: the grass seeds after dressing are spread in the strips and covered with a fine soil layer or a fine sand layer; (5), field management: watering is performed before and after seedling emergence, seedling checking and reseeding are performed, weeds are removed, dressing of a hole applied fertilizer is performed, and cutting is performed. When the method is used, the nutrients of the red soil slope field can be retained substantially, nutrient loss is reduced, the soil fertility is improved, a water eutrophication process is slowed down, and environmental protection is facilitated.

The invention provides a method for preventing and treating the agricultural non-point source pollution of a sloping field, comprising the following step: applying chemical control agents to the agricultural crops in the sloping filed, namely applying 0.3-1.5kg of soil structure conditioner, 3-18kg of soil water-retaining agent and 1-3kg of plant anti-evaporation agent to the sloping field per mu. If the sloping field has the sloping angle of 5-10 degrees, 0.3-1kg of soil structure conditioner is applied to the sloping filed per mu, if the sloping field has the sloping angle of 10-15 degrees. 0.6-1.5kg of soil structure conditioner is applied to the sloping field per mu, and if the sloping filed has the sloping angle of more than 15 degrees, 1.0-2.0kg of soil structure conditioner is applied to the sloping field per mu. According to the method provided by the invention, a soil-crop system is taken as a whole pollution-prevention object, and the non-point source pollution is prevented and treated by adopting the technological means of chemical coordinated control, thus a better effect is achieved. Due to the adoption of the method, the purposes of reducing the application amount of the fertilizer and the pesticide, reducing the water and soil erosion of the slope and the loss of pollutants, preventing the deep leakage of the water and fertilizer, reducing the wasteful evaporation of crops, increasing the yield, conditioning and using the water and the fertilizer efficiently are achieved.

The invention provides an outdoor storage method of radix scrophulariae for planting. The method comprises the following steps of: 1) digging ditch-shaped storage pits on a surface soil layer of a sloping field in the transverse slope direction; 2) stacking radix scrophulariae buds in the storage pits in a tortoise back shape; 3) covering the radix scrophulariae buds with a protective soil layer and digging drainage ditches on the two sides of the storage pits; and 4) covering the protective soil layer with a covering material for rain-proofing and frost-proofing. The method has the following beneficial effects: not only are the losses of the radix scrophulariae buds low in the storage process but also the storage cost is lower than that in the traditional methods; and most importantly, the emergence rate and yield of radix scrophulariae are higher than the emergence rates and yields in the traditional methods by planting the radix scrophulariae buds obtained by adopting the new storage method.

The invention relates to a red-soil dry sloping field tobacco deep plowing, fertilization and level planting integrated planting method. Soil in a 50cm-deep soil layer is mixed through mechanical strip type deep plowing, fertilization is conducted in a matched manner, then ridges are leveled and finally tobacco is planted. The method is simple and feasible, the planting efficiency of tobacco in red-soil dry sloping fields in south China can be obviously improved, the production risk caused by insufficient rainwater is reduced and the problem of lack in fields for tobacco and staple food grain production is avoided.

A center pivot light sprinkler irrigation system driven by solar energy belongs to the field of agriculture mechanical equipments. The center pivot light sprinkler irrigation system driven by solar energy includes a center supporting base, tower vehicles, a tail end cantilever, an electronic control synchronizing system and a plurality of trusses, wherein the center supporting base can rotate around the center pivot light sprinkler irrigation system, the tower vehicle is arranged on a rotating arm and a plurality of trusses are provided with sprinkler heads and have a flexible connection between each other so as to adapt to sloping field walking operations. The trusses which are provided with a span of dozens of meters and a connection between each other are supported on a plurality of tower vehicles and have a configuration of the opening and closing of the electronic control synchronizing system and motors and walking wheels arranged on the driving tower vehicle. A piece of large solar panel which connects with a power supply device which is capable of being charged is arranged on the upper portion of a center pivot base. The power supply device which is capable of being charged is arranged on the center pivot base. The other end of the power supply device which is capable of being charged is connected with a well pump of water supply and is connected with the sprinkler heads arranged on branch points of the trusses by a main water conveying pipe. The sprinkler irrigation device is capable of walking automatically relying on solar energy, saves energy, has a light structure, is environment friendly, is moved conveniently and is low in cost.

In one general aspect, an apparatus can include a channel region disposed in a semiconductor substrate, a gate dielectric disposed on the channel region and a drift region disposed in the semiconductor substrate adjacent to the channel region. The apparatus can further include a field plate having an end portion disposed between a top surface of the semiconductor substrate and the gate dielectric The end portion can include a surface in contact with the gate dielectric, the surface having a first portion aligned along a first plane non-parallel to a second plane along which a second portion of the surface is aligned, the first plane being non-parallel to the top surface of the semiconductor substrate and the second plane being non-parallel to the top surface of the semiconductor substrate.

The invention provides a method for planting polyporus umbellatus and humic acid for planting the polyporus umbellatus and belongs to the technical field of polyporus umbellatus planting methods, wherein the method is simple, is in favor of management and is low in cost. The technical scheme adopted by the invention is as follows: selecting round polyporus umbellatus with full water and multiple bacterium holes outdoors, and simultaneously, removing Yuanpei soil at the periphery of selected seeds; storing for 5-10 days at the temperature of 28 DEG C-35 DEG C at the pH value of 5-7 at the humidity of above 75%; selecting a sloping field which is shady and has sunlight and a sloping degree of 15 degrees-35 degrees as a plant field; excavating a kiln along terrain on the sloping field, wherein the length of the kiln is 1.3-1.6 meters, the width of the kiln is 1-1.3 meters, and the height of the kiln is 1-1.3 meters; and mixing 3-4 parts of Yuanpei soil with 5-7 parts of humic acid and then filling the mixture in the kiln, wherein the planting is carried out on the last ten-day of May or the first ten-day of October each year, the growth period is 13-15 months, and the humidity is maintained to be above 70% in the planting process. And the method is applied to the technical field of polyporus umbellatus planting on a large scale.

The invention provides a forest-medicinal material-ecological environment three-dimensional planting method. The method comprises the steps that slope land is subjected to slope and terrace formation,a slope field and a terrace field are obtained, ridging is conducted on the plane of the terrace field to obtain a ridging surface, and field planting pits are formed in the slope field at preset intervals of the field planting pits; forest or arbor medicinal materials are planted in the field planting pits; based on the influence of the growth vigor of the forest or arbor medicinal materials indifferent growth stages on the illumination condition of the terrace field, short-period medicinal materials corresponding to the growth stages are planted on the ridging surface of the terrace field.According to the method, three-dimensional planting of different medicinal materials and forests is achieved in limited land resources by using the terrain and environment conditions of mountainous areas, the requirements of the medicinal materials with different light demands are met, mechanical harvesting and digging of three-dimensional planting are achieved, and the efficiency is improved; inaddition, the forest or arbor medicinal materials are planted through mountains, the landslide is avoided, and the aim of balancing the ecological benefits and the economic benefits is achieved.

The invention discloses a mountain villa, which is a building built on a sloping field and comprises a living area and a processing area located below the living area, wherein multiple living buildings exist in the living area, each living building comprises a housing area located at the upper layer and a storage area located at the lower layer, the storage area comprises canchas and / or garages and / or farming tool houses, the storage area is provided with an entrance door and a stair connecting the storage area and the housing area, and the processing area is provided with a wastewater processing pool. The mountain villa also comprises a wastewater pipe arranged along the sloping field, the wastewater pipe is connected with blowdown facilities of the housing area and / or storage area of each house, and the wastewater pipe is also connected with the wastewater processing pool for directly discharging wastewater in the living area to the wastewater processing pool for processing. The mountain villa provided by the invention is suitable for farmers, and defects that the existing mountain building is not comfortable and can not meet requirements of the farmers can be solved.