56results about How to "Drought relief" patented technology

The invention discloses a water-retaining and slowly-release compound fertilizer and a preparation method thereof. The water-retaining and slowly-release compound fertilizer is prepared from the following components in parts by weight: 60-75 parts of chemical fertilizers, 1-6 parts of a water-retaining agent and 19-39 parts of filler, wherein the chemical fertilizers are at least two of a nitrogen source fertilizer, a phosphorus source fertilizer and a potassium source fertilizer; the water-retaining agent is at least one of polyacrylamide, sodium polyacrylate and sodium carboxymethylcellulose; the filler is at least one of bentonite, attapulgite, kaolin, talcum powder and gypsum powder. The preparation method comprises the following steps: 1) mixing the chemical fertilizers, the water-retaining agent and the filler to obtain a mixture; 2) adding water in the mixture and granulating; stopping adding water when small particles are formed, then adding the filler powder, granulating, and finally drying to obtain the water-retaining and slowly-release compound fertilizer. The water-retaining and slowly-release compound fertilizer disclosed by the invention has a water-retaining property and a slowly-release property, and is capable of reinforcing the water-retaining and water-holding capacities of soil, increasing the utilization rate of water resources, increasing utilization rate of the fertilizers, reducing nutrient loss, resisting drought, and reducing the pollution of fertilization to an ecological environment; the preparation method is simple and easy to process and produce.

A high-activity drought-resistant nutrescin is prepared from ammonium humate, coated urea, P, ammonium phosphate, chitin, kurarinol, bentone, water, organic substance, bone powder, RE and Chinese medical stone through choosing raw materials, extracting, concentrating complexing reaction, chelating, mixing and drying particles. Its advantage is high effect to resist drought and increase yield of crops.

A nano-class fermented active organic fertilizer is prepared from ammonium humate organonitrogen, ammonium polyphosphate, ammonium phosphate, calcium potassium pyrophosphate, organopotassium, additive and water through screening raw materials, grinding, biochemical reacting, adding additive, granulating, compounding, drying, cooling and coating. Its advantages are no poison and environmental pollution, and multiple functions including improving soil and crops, regulating growth of plant, increasing yield of crops, resisting diseases and bacteria, etc.

A kind of slope-face roof lawn comprises waterproof layer, slope-face roof fixation tray, moisture self-restraint layer, level ground bed matrix layer and lawn plant. The waterproof layer is paved above the slope-face roof, on the waterproof layer pave the slope-face roof fixation tray which is shaped as the inside concave-like step-type, to the under side is the straight surface, to the up side is the flute formed by turn-up arc-surface, on the fixation tray pave the self-restraint layer formed by water-contain material, on the moisture self-restraint layer pave the level ground bed matrix layer, on which grow the lawn plant. The invention has the simple structure and can be achieved easily, the special design of the slope-surface roof fixation tray can effectively induce the leakage of the moisture in the earth matrix and give the matrix a effective support, and can also contain the slope-face roof level ground bed matrix and the moisture distributed evenly, and ensure the growth of the roof lawn.

The invention discloses a double-layer sand inclusion planting method, comprising the following steps: putting tree seedlings into tree wells; keeping the tree seedlings under a vertical state; covering the roots of the tree seedlings with sands; filling soil until to be near to the earth surface; treading down; well watering; after leaking the water, repeatedly covering a layer of sand; filling the tree wells until to be parallel to the earth surface; and stacking soil to have the shape of mound around the bases of the tree seedlings and tightly beating. The method creates a soil environment of good water retention property, good ventilation property and stable moisture condition at the rooting zones of the new planted trees, so as to greatly promote the growth of the roots of the trees, improve a property that the plants fast absorb moisture and nutrient, and improve survival rate and growth rate. The double-layer sand inclusion planting method is especially fit for regions with the higher consistency of soil.

The invention discloses a well and a water collection well. The well comprises a bottom plate, a well chamber, a well cylinder adjustment block, a well ring and a well lid which are connected in sequence from bottom to top, wherein the lower parts of the bottom plate and the well chamber are integrally formed by pouring; and a water inlet is formed in a side wall of the well chamber. The water collection well comprises a sand sediment well and a water intake well which adopt the well, wherein a first water collection well chamber is connected between the sand sediment well and the water intake well; the sand sediment well is communicated with the first water collection well chamber through an upper water-passing hole; the first water collection well chamber is communicated with the water intake well through a lower water-passing hole and the water inlet of the water intake well; and vent holes are formed in the sand sediment well, the water intake well and the side walls at the upper part of the first water collection well chamber. The well and the water collection well are connected with a drainage pipeline of a drainage system, so that rainwater can be collected on a rainy day and urban water logging is avoided; and when the soil is droughty, the rainwater stored in the well can be pumped out for irrigating greenbelts to relieve the drought, so that wastes are turned into wealth and water resources are saved for cities.

The invention discloses an integrated machine for farmland planting management, belonging to farmland management machines. The integrated machine comprises high patterned paddy wheels, a traveling system, a power system, a steel structure platform, a sowing fertilizer applicator, a pesticide spraying device and a water spraying device, wherein the steel structure platform is connected with the high patterned paddy wheels through the traveling system, and the power system, the sowing fertilizer applicator, the pesticide spraying device and the water spraying device are connected to the steel structure platform. The integrated machine has the advantages that the multiple agricultural implements are integrated in a whole body, and the integrated machine can move leftwards, rightwards, forwards and backwards in various fields; seeds are uniformly sown in a scattered mode without damage through wheeled full-coverage sowing and fertilizing; a spray head and a blade surface can be arbitrarily adjusted according to wind power, pesticides are saved, the effect of the pesticides is improved, the harms caused by drifting to the environment are reduced, the pesticides can be quickly applied, and the labor force is saved. The water spray is used for preserving the soil moisture and keeping a full stand of seedlings, water is saved, farmers can easily, quickly and efficiently finish the whole operation process of crops with high quality without stepping into croplands, the operation amplitude is large, and farmlands are managed and operated in a factory-like mode, so that resources are saved and pollutants are reduced.

The invention discloses a fertilizing method for tobacco in a manner of drip irrigation under a plastic film. A drip irrigation system is used for sending a water fertilizer mixed solution required by each stage of the tobacco growth to a tobacco root zone soil; the water fertilizer mixed solution is one or more of compound fertilizer aqueous solution special for tobacco, phosphate fertilizer aqueous solution, potassium nitrate aqueous solution and potassium sulfate aqueous solution; and the compound fertilizer special for tobacco and the phosphate fertilizer are applied as base fertilizers in a transplanting process, the dosage of the compound fertilizer special for tobacco is reduced and the application time of the potassium sulfate is delayed in stages. The invention positively responds to the double reduction plan established by the Ministry of Agriculture, the dosage of nitrogen and phosphor is greatly reduced and the agricultural non-point source pollution is reduced. Compared with the conventional fertilizing, the invention has the advantages that the drip irrigation under the plastic film is adopted for fertilizing, the dosage of the potash fertilizer is not changed, the total dosage of the nitrogen and phosphor fertilizer is respectively reduced by 15kg / hm<2> and 18kg / hm<2>, and meanwhile, the obvious output reduction is not caused and the output value is basically not changed. Various chemical components in the tobacco leaves are close to harmonious and balanced state and are approximate to the suitable content scope of high-quality tobacco leaves.

The invention provides a multifunctional ecological channel applied to a water conservancy project building slope. The multifunctional ecological channel comprises supporting backup plates, a water suction groove and a planting box supporting plate; four inclined supporting plates are arranged and supported between bottom plates of two precipitation channels and the left and right inner walls of achannel body at equal distances, the supporting backup plates are arranged on one sides of the top ends of the inner side walls of the two precipitation channels in a protruding molding manner, and backup plates are arranged on the top ends of the left and right side walls of the channel body in a protruding molding manner; a whole frame of a metal filter net is arranged in a perpendicular bending manner, and two lifting handles are symmetrically arranged on frame plates on the left and the right of a transverse part frame. Due to arrangement of the precipitation channels, sediment included in rainwater flow can be precipitated in the precipitation channels and is precipitated on the bottom plates of the precipitation channels, most sediment in the rainwater flow is precipitated and filtered, and the phenomenon that due to the fact that that the sediment is discharged into the channel body directly along with the water flow to generate sedimentation, and cleaning is not convenient isavoided.

The invention discloses a drought resisting and rainwater collecting and water and fertilizer integration drip irrigation system in hilly and mountain areas. The system comprises a rainwater collecting system, a power generation system and a water and fertilizer drip irrigation system; the rainwater collecting system comprises a rainwater collecting surface laid between ridges and a rainwater collecting tank arranged below the rainwater collecting surface, and the rainwater collecting surface is formed by laying a degradable nano water retention mulching film; the power generation system comprises a solar cell panel, a wind driven generator, a biogas power generation device and a power battery device; the water and fertilizer drip irrigation system comprises a drip irrigation pipe and water and fertilizer irrigation equipment. Accordingly, the system is novel in design and safe and reliable in operation, rainwater is converted on the spot, natural rainfall is used for resisting drought, and the rainfall resource is effectively utilized; the degradable nano water retention mulching film has the using features of an ordinary mulching film and can be degraded, residues obtained after degrading can be absorbed and utilized by soil microorganisms, crop growth is effectively promoted, secondary pollution is avoided, damage of unreasonable irrigation and fertilization to soil structure is avoided, the water and fertilizer resources are effectively saved, the cost is lowered, and precise irrigation and fertilization are achieved.

The invention provides a method for using cruciferae crops as wheat field green manure and relates to the technical field of crop planting. According to the method, soil fertility can be improved andphysical and chemical characteristics of soil can be improved; in addition, the application amount of inorganic fertilizer can be effectively reduced, soil moisture is increased and drought is alleviated. The method comprises the following steps: S1, carrying out soil preparation; S2, sowing oilseed rape green manure; S3, carrying out field management on the oilseed rape green manure; S4, ploughing and burying the oilseed rape green manure into the soil; S5, sowing afterreap winter wheat. The technical scheme provided by the invention is suitable for the perennial cultivation process of wheat.

The invention provides a coastal saline-alkali soil ecological improvement system. The system comprises an ecological regulation pond, a culture pond, a platform field, an alkali discharge ditch and a shallow groundwater extraction system, the ecological regulation pond and the alkali discharge ditch are connected with the alkali discharge ditch and a river through ditches, the ecological regulation pond performs rainy season fresh water accumulation and individual rainy year water draining, and the culture pond performs underground water or fresh water supplementing and aquaculture. The platform field is paved with different kinds of straw according to different distances with the pond, the shallow groundwater extraction system provides power by means of blending of wind energy and solar energy to extract shallow groundwater continuously day and night. The invention further provides a matched high-yield cotton planting method. Accordingly, adversity stress of saline-alkali, drought and water logging of coastal saline-alkali soil is significantly changed, and normal growth and development of cotton are promoted; meanwhile, the pest and disease damage is significantly lowered, management is conducted more conveniently, the cotton yield is significantly increased, the cotton quality is significantly improved, and the cotton planting earnings of farmers are directly increased.

The present invention provides a method for fertilizing tobacco leaf, nutrient absorption content of flue-cured tobacco during growth process is different, the whole growth period is divided into two stages for fertilization, and the method comprises the following steps: a, during transplanting of the flue-cured tobacco, 7.5kg of nitrate ammonium phosphate with the nitrogen content of 30%, 2.5kg of calcium superphosphate with the phosphorus content of 16% and 27.5kg of a potash fertilizer are applied to a field by row fertilization as a base fertilizer; and b, in about 30th d of the growth of the flue-cured tobacco, topdressing of 6kg of the potash fertilizer is performed while earthing; during the whole growth and development period of the flue-cured tobacco, in each mu of the field, total amount of 25-35kg of the potash fertilizer, total amount of 7.5-8.0kg of the nitrate ammonium phosphate with the nitrogen content of 30%, and total amount of 2.5-3.0 kg of the calcium superphosphate with the phosphorus content of 16% are applied. The method improves the baking quality and drought resistance of the flue-cured tobacco, infection rate of wildfire disease and tobacco mosaic disease of the flue-cured tobacco are reduced respectively by 50% and 23%, and the method meets potassium absorption in the growth period of the flue-cured tobacco, and has very strong practicability.

The invention discloses a rainwater collecting and seepage guiding embedded rod for soil drought control, and belongs to the technical field of soil improvement. The rainwater collecting and seepage guiding embedded rod for soil drought control comprises an embedded cylinder, wherein a water inlet hole is formed in the middle of the top end of the embedded cylinder, a rainwater collecting hopper is fixedly connected to the top end of the embedded cylinder, and a plurality of supporting pipes are fixedly connected to the two sides of the embedded cylinder. Rainwater can be automatically collected, a specially-made water guiding assembly is arranged, along with the loss of rainwater in surrounding soil, the water guiding assembly can guide the rainwater and enable the rainwater to permeate into the soil, the standing time of the rainwater in the soil is effectively prolonged, the soil is moisturized, and the drought of the soil is greatly relieved; and a specially-made slow-release blocking ball is arranged in a matched mode, a soil conditioner filled in the slow-release blocking ball can permeate into the soil along with the rainwater, the conditioner can be automatically applied toimprove and repair the soil while the soil is moisturized, and the practicability is greatly improved.

The invention relates to the technical field of ecological management, and provides a reservoir tail hydro-fluctuation belt wetland restoration method based on forest habitat. The method comprises the following steps of S1, selecting saplings: selecting a flooding-resistant large arbor with the height that the tree top can exceed the highest water level by 20-80cm after the tree top is submerged in the highest water level after planting, the large arbor comprises one or more of pond fir, Chinese tipping, taxodium zhongshanha and taxodium falcatum; and S2, planting, wherein planning small-sized trees resistant to water logging along a riparian zone of a reservoir tail hydro-fluctuation belt, and planning the large arbors below small arbors at a certain distance. According to the method, the spatial heterogeneity of the reservoir tail hydro-fluctuation belt is improved, and the original vegetation condition can be quickly and completely recovered after the reservoir tail hydro-fluctuation belt goes through a long-time highest water level environment.

The invention relates to a fertilizing method for lowering the infection rates of wildfire disease and mosaic disease of tobacco leaves and improving drought resistance of flue-cured tobacco. The method comprises the steps of applying 25-35 kg of pure potassium, 7.5-8.0 kg of pure nitrogen and 2.5-3.0 kg of pure phosphorus to each mu of land; in the transplanting process, applying 7.5 kg of pure nitrogen, 2.5 kg of a phosphatic fertilizer and 27.5 kg of a potash fertilizer in a furrow-application mode; when flue-cured tobacco grows to the about 30 day, dressing a potash fertilizer, wherein the pure potassium content is 6 kg, and conducting ridging at the same time; applying a base fertilizer in a furrow-application mode, wherein the depth is 20-25 cm below the soil layer, the combined application ratio of a citrate-soluble potash fertilizer to a potash fertilizer special for tobacco is 3: 1, the combined application ratio of woody peat to carbonized flue-cured tobacco straw is 9: 1, and the woody peat content of the dressed potash fertilizer is 9%. According to the flue-cured tobacco planted through the fertilizing method, the infection rates of wildfire disease and mosaic disease are lowered by 50% and 23% respectively, the drought situation under the drought condition is mitigated to a certain extent, and great practicability is achieved.

The invention discloses a multifunctional light fire engine. The multifunctional light fire engine comprises a cab and a carriage of a vehicle; a water tank and a high-pressure water pump system are arranged in the carriage; the high-pressure water pump system is mounted on a frame between the cab and the water tank; the water tank is connected with one end of a water inlet pipe; three ports of a three-way valve are respectively connected with the other end of the water inlet pipe, one end of a water sucking pipe and a water pump in the high-pressure water pump system; the other end of the water sucking pipe is communicated with the water pump; a water pump shaft is mounted in the water pump; an impeller is mounted at one end of the water pump shaft; the other end of the water pump shaft is connected with a driven belt wheel; the driven belt wheel is connected with a driving belt wheel through a belt; the driving belt wheel is mounted on a power output shaft; the water pump is connected with a water gun through a water pipe; the cab and the carriage are mounted on the frame; the power output shaft is mounted below the frame; and a vehicle engine supplies power. The multifunctional light fire engine has the beneficial effects of small size, high power, good cross-country ability, fire control, watering, afforestation, drought resistance and disaster relief.

The invention discloses pelleted seeds and a preparation method thereof and belongs to the technical field of agriculture. A seed coating agent of the pelleted seeds is prepared from components in percentage by mass as follows: 5%-20% of dry compound microbial powder, 50%-60% of zeolite powder and 20-45% of bentonite, the seed coating agent can promote early growth of seeds, and the mass ratio ofthe seeds to the seed coating agent is (1:12)-(1:7). The raw materials are fully stirred and mixed, and granules convenient to sow are processed with a low-temperature granulation method. The seed coating agent is simple to prepare, the raw materials are cheap and easy to obtain, and the pelleted seeds have wide application range and diversified functions.

The invention discloses a silt loss preventing device for river ecological restoration. The silt loss preventing device comprises a river channel, wherein a silt conveying device for intercepting andconveying silt is arranged in the river channel; a flow control device positioned on the lower side of a filter screen is arranged in the river channel; the flow control device can adjust the silt conveying amount according to the water flow speed; and a storage device for storing redundant silt is arranged on the right side of the river channel. According to the silt loss preventing device, the silt in the river channel is intercepted through the intercepting filter screen arranged on the river channel, meanwhile, a water turbine positioned on the upstream of the intercepting filter screen drives a conveying mechanism to convey the intercepted silt into a conveying channel, water flow containing the silt is guided into a downstream farmland to be improved through the conveying channel, and therefore water and soil loss in the river channel is intercepted and guided, and the downstream farmland can be irrigated and improved; and meanwhile, a flow adjusting mechanism can automatically adjust the water conveying amount of the conveying channel according to the rainfall, the drought condition of the downstream farmland can be relieved, and the downstream flood disaster can be reduced.

The invention discloses a farmland irrigation system. The system comprises a main channel and a plurality of branch channels connected with the main channel; each branch channel comprises a channel body and channel protection embankments on the two sides of the channel body, and a plurality of water injection parts are arranged on the channel protection embankments; each water injection part comprises a drainage part on the outer side of the corresponding channel protection embankment and a flashboard for controlling water outflow of the drainage part in the corresponding channel protection embankment; a water storage unit is arranged beside each water injection part and comprises a base platform, a water storage part and a supporting base on the base platform; each water storage part comprises a water storage part base body, a water storage part pipe body and a water pipe communicated with the water storage part base body, and when in a horizontal state, the water storage part pipe bodies are connected with the drainage parts of the adjacent water injection parts. According to the structure of the farmland irrigation system, the water storage units are added, the moisture evaporation loss can be avoided by water stored in the water storage units, drought conditions of farmland can be relieved in drought seasons, and the farmland irrigation cost is reduced.

The invention discloses a water regulating and storage structure for a road between green belts. The water regulating and storage structure comprises the road between the green belts, a curb is arranged at the junction of the road and the green belts, and a drain sink is arranged on the position, close to the curb, of the road; a pervious concrete layer is arranged at the bottom of the curb, the curb and the pervious concrete layer serve as the side walls of the drain sink, a gravel layer is arranged on the lower part of a soil layer of the green belts, the edge of the gravel layer is locatedon the lower part of the pervious concrete layer, a first water storage tank is arranged on the lower part of the gravel layer, a second water storage tank is arranged on the lower part of the first water storage tank, a communicating pipe communicating with the second water storage tank is arranged on the upper part of the first water storage tank, a plurality of water absorbing pipelines are arranged between the first water storage tank and the soil layer of the green belt, and the second water storage tank is provided with a drainage pipeline. According to the water regulating and storage structure, rainwater of the green belt and the road can be effectively drained in time, the situation that plants are soaked by the rainwater for a long term is avoided, stored water can further be fedback to the plants during drought, and the rainwater is filtered and purified.

The invention discloses an LID (low impact development) type rainwater ditch and a design and calculation method for the same, and is applicable to various rainwater drainage ditches such as drainage ditches, farmland drainage ditches and floodwater drainage ditches on two sides of a slope and two sides of a road. The rainwater ditch comprises a ditch, storage dams, overflow ports, a rubble layer, a sandy soil layer, ecological slopes and the like. The sandy soil layer is laid on a bed of the ditch, the rubble layer is laid on the upper side of the sandy soil layer, and the storage dams are longitudinally continuously arranged along the ditch and are separated from one another by a certain distance, so that a series of reservoirs which are continuously distributed are formed along the ditch. The design and calculation method includes designing and calculating layout spacing of the water storage dams and the sizes of the overflow ports. The LID type rainwater ditch and the design and calculation method have the advantages that the LID type rainwater ditch has multiple functions of 'drainage, water storage, infiltration and decontamination', and is incomparable to a hard rainwater ditch only with a drainage function; the LID type rainwater ditch is high in water storage capacity and drainage speed which are deficient in a wetland bed type rainwater ditch; the rainfall flood runoff volume can be obviously reduced, the groundwater recharge can be improved, non-point surface pollutants of rainwater can be reduced, and environments can be beautified.

The invention discloses a greenhouse cultivation method for pumpkins at the early spring stage. The method comprises the following steps of 1 variety selection; 2 seedbed preparation, wherein a planting pit is dug in the land, hollow bricks are flatly laid at the bottom of the pit, and diatom ooze is adopted for coating processing; solid bricks are adopted int the length direction in the middle ofthe planting pit for building an accumulated temperature zone; after the planting pit is backfilled with thick preparation mellow soil, the pit is filled with thick straw powder, and enough water ispoured, the pit is backfilled with mellow soil to be flushed with the pit opening; the accumulated temperature zone is filled with straw powder, enough water is poured, and the pit is backfilled withgravel soil to be flushed with the pit opening; seedling growing zones are formed at the two sides of the accumulated temperature zone, and the seedling growing zones are filled with nutrient soil; 3,greenhouse building; 4, seed processing; 5, seed sowing; 6 seedbed management; 7, transplanting and planting; 8, later period management; 9, pest control and 10, harvesting. The method is adopted forplanting pumpkins, the seed sowing time can be about 15 days ahead of the schedule, the seedling emergence rate can be increased by 22.8% on the year-on-year basis, the seedling growth speed is higher, the planting time is about 3 d ahead of the schedule.

The invention discloses a method and a device for efficiently collecting karst region rock-soil interface water flow. The method comprises the following steps of: (1) thickness distribution of soil isdetected by using a marking pin: the marking pin is made of a steel bar, and is inserted into a underlying bedrock; the insertion depth of a soil layer is marked by a water color pen; and then a place where a slope surface is thicker relative to the soil layer is found by measuring the insertion depth using a measuring tape; 2) an equation for calculatinginstantaneous water flow potential at a rock-soil interface is predicted: the soil layer is in direct contact with a rock layer to form a rock-soil interface; a water flow at the rock-soil interface comes from gravity water flowing at the slope surface in the lateral direction, the rock-soil interface is connected with a gauze; a water-surrounding weiris connected with cement mortar; and a PVC pipe is separately connected with the water-surrounding weirand awater storage tank. According to the method and the device for efficiently collecting a karst region rock-soil interface water flow, the instantaneous water flow size atthe rock-soil interface ofa certain karst slope is obtained through a water flow potential prediction equation, so that the best position for building a rock-soil interface water flow collection device is determined. The method is easy to implement, and the operation is simple and efficient.

The invention discloses a greening system for a prefabricated arch body bearing-type vegetation concrete side slope. The greening system comprises a plurality of rows of arc body bearing devices laid along the surface of the side slope. The arc body bearing devices comprise a plurality of prefabricated arc bodies. Every two prefabricated arc bodies are connected through a stressing pier, and the stressing piers are built on the side slope through bolts embedded in the side slope. A water storage pool is installed at the top of the side slope. A plurality of multistage water supplying devices which are vertically arranged and used for watering vegetation around each prefabricated arc body are communicated with the water storage pool. According to the greening system and a greening method for the prefabricated arch body bearing-type vegetation concrete side slope, the problem brought by the cement use amount can be solved, the cement use amount of vegetation concrete is decreased, the germination rate of seeds is increased, the gravity stress and later downward creeping influence of the vegetation concrete are lowered, cracking and falling of the vegetation concrete are reduced, and the downward shearing force of the terrene surface is decreased.

The invention discloses a cultivation mode of spring wheat seed storing in the field in winter. Systematic study is performed on the sowing date, sowing amount, sowing depth, soil temperature, soil moisture and other yield limiting factors of wheat whose seeds are stored in the field in winter in a traditional spring wheat planting area. The cultivation mode of spring wheat seed storing in the field in winter includes the four steps: (1) tillage and soil preparation and autumn irrigation and moisture storage, (2) sowing date adjustment, (3) high-quality sowing, and (4) management after sowingis conducted. Seed storing in the field refers to a cultivation mode that traditional wheat sowing in spring is changed into sowing in late autumn and early winter, the seeds do not germinate in winter, and seedlings emerge in the next spring, and the mode is called seed covering in soil or spring wheat sowing in winter during production; and the mode can be applied to both spring wheat variety planting but also winter wheat variety planting. Through the cultivation mode, the problems of serious waste of light and temperature resources after spring-sowed wheat is harvested in the north, a lowmultiple cropping index and difficult increase of the total grain output in the whole year are solved.

A kind of slope-face roof lawn comprises waterproof layer, slope-face roof fixation tray, moisture self-restraint layer, level ground bed matrix layer and lawn plant. The waterproof layer is paved above the slope-face roof, on the waterproof layer pave the slope-face roof fixation tray which is shaped as the inside concave-like step-type, to the under side is the straight surface, to the up side is the flute formed by turn-up arc-surface, on the fixation tray pave the self-restraint layer formed by water-contain material, on the moisture self-restraint layer pave the level ground bed matrix layer, on which grow the lawn plant. The invention has the simple structure and can be achieved easily, the special design of the slope-surface roof fixation tray can effectively induce the leakage of the moisture in the earth matrix and give the matrix a effective support, and can also contain the slope-face roof level ground bed matrix and the moisture distributed evenly, and ensure the growth of the roof lawn.

The invention provides a furrow film ridge planting method for sunflowers, belongs to the technical field of crop planting, and aims at solving the problems of yield reduction due to drought and Orobanche coerulescens parasitismbecause of irrigation difficulty as normally-planted sunflowers in Hetao irrigation areas are prone to irrigation lodging in the later growth period and seedlings in saline-alkali soil die due to irrigation. During sunflower planting, furrowing and fertilizing operations are innovatively completed at one time by adopting a furrowing and film mulching machine, plastic films cover the bottoms of furrows to the tops of slopes, and seeds are manually sown on the shoulders of the slope, so that the furrow-film ridge planting method integrating dew collection, rain collection, water retention, root nourishment, irrigation and drainage, lodging resistance and orobanche coerulescens resistance is formed. The method can improve the moisture conservation capacity of root layers and promote root systems to grow well, waterlogging prevention and lodging resistance are high, and plants grow well and are high in yield; and the purpose of salt inhibition in moderate saline-alkali soil can be achieved, the seedling protection rate is increased, and the Orobanche coerulescens harm is reduced in Orobanche coerulescens generation land. The technical method is beneficial to industrial application and makes a great contribution to high-quality development of the sunflower industry.

The invention discloses an agricultural recharging device utilizing rainfall flood resources. The device comprises a runoff water collecting mechanism, a water diversion channel, a high-level reservoir, a low-level reservoir, a recharge mechanism and a single chip microcomputer, wherein the runoff water collecting mechanism is communicated with the high-position water storage pool through a waterdiversion channel, the low-position water storage pool is communicated with the high-position water storage pool through a water conveying pipeline, the low-position water storage pool is connected with the recharging mechanism through a recharging pipeline, the runoff water collecting mechanism and the recharging mechanism are arranged on the ground surface, and the water diversion channel, the high-position water storage pool and the low-position water storage pool are buried; the rainwater collection device and agricultural utilization are combined, and by collecting rainfall and surface runoff and adjusting the space-time difference of rainfall, recycling of water resources is achieved, drought is relieved, and the crop yield is increased.

The invention discloses a straw-checker sand-barrier type crop precision dibble seeding device. The straw-checker sand-barrier type crop precision dibble seeding device comprises a connecting rod mechanism, a seeding box and a grid, wherein the connecting rod mechanism is arranged above the seeding box; a steel wire rope is connected with and arranged at the bottom part of the connecting rod mechanism, and is positioned in the seeding box; the connecting rod mechanism can penetrate through the seeding box to move up and down; a spring opening is arranged on the side surface of the seeding box;a cross rod is fixedly arranged in the spring opening; one end of the cross rod penetrates through the steel wire rope; the bottom part of the steel wire rope is fixedly arranged on a fertilization adjusting button; a spring, located outside of the seeding box, is connected with and arranged at the other end of the cross rod; the tail end of the spring is connected with a seeding head located atthe bottom part of the seeding box; and a grid is arranged below the seeding head and fixedly connected with the seeding box. According to the invention, advantages of planting of straw-checker sand barriers in a desert area are combined; rainwater is collected in a concave grid pressed at the bottom part of the device; the ground wind speed is reduced; water evaporation is reduced; the drought resistance of plants is improved to a certain extent; the problem that plant growth is affected due to small amount of precipitation is solved; and thus, the crop yield is increased.