6results about How to "Improve water use efficiency" patented technology

This utility model provides a wheat irrigation device, belonging to the field of agricultural irrigation technology. The device is characterized by comprising an irrigation main pipe and a water distribution component. The irrigation main pipe is a hollow water pipe with an inlet connected to the bottom of its side wall and the top connected to the water distribution component. The water distribution component is used to rotate and distribute the water in the irrigation main pipe. The water distribution component includes a water distribution connecting rod and a water distribution turntable. The turntable is a cylindrical structure with a hollow interior, and has outlets on its side wall and bottom. The water distribution connecting rod is located at the center of its bottom. The connecting rod is also cylindrical and its bottom is nested within the inner wall of the top of the irrigation main pipe, rotatably connected to it. The connecting rod has a water distribution structure inside, used to divide the water flow into multiple streams. This utility model requires no additional energy and can irrigate wheat through rotation, facilitating agricultural operations.

This utility model discloses a cultivation device for corn planting, including a water storage tank with a circulating water bed inside. Multiple water flow shells are arranged in the water outlet direction of the circulating water bed, and a cultivation area is set between adjacent water flow shells. The center of each water flow shell is recessed downwards to form a flow channel. Multiple flow channels correspond one-to-one with multiple outlets of the circulating water bed. Multiple permeable holes are formed on the inner wall of the flow channels, penetrating the water flow shells and communicating with the cultivation area. This utility model, through the lateral water delivery design of the water flow shells, allows water to fill the entire cultivation area via the flow channels. The water seeps out through the permeable holes, diffusing from both sides of the cultivation area towards the center through water infiltration, avoiding the problem of soil particles splashing caused by water directly impacting the soil surface from top to bottom in existing irrigation methods.

The application relates to the technical field of fruit tree seedling raising, in particular to a fruit tree seedling raising root-limiting container, which comprises a seedling raising container, a non-woven fabric planting inner cylinder and a moisturizing cover body. The seedling raising container is in a cylindrical shape, the bottom of the seedling raising container is provided with a circular-truncated-cone-shaped supporting part, the non-woven fabric planting inner cylinder is arranged in the inside of the seedling raising container and located on the supporting part, the moisturizing cover body is detachably arranged on the top opening of the seedling raising container, and the moisturizing cover body is provided with a seedling passage in the center. A flow guide groove is formed between the supporting part and the sidewall of the seedling raising container, and the supporting part and the sidewall of the flow guide groove are both provided with water seepage holes. The application combines the ventilation at the bottom of the seedling raising container and the moisturizing at the top of the seedling raising container, reduces soil water evaporation, improves water utilization rate, reduces water supplement frequency, guarantees the ventilation at the bottom of the non-woven fabric planting inner cylinder, avoids root system oxygen deficiency and reduces the risk of root rot.

This invention discloses an upward-rotating and downward-rotating spray gun, belonging to the field of agricultural irrigation technology. Based on the original double-rotating spray gun, this invention is optimized for high-sediment-content water environments. It includes: an outer cylinder (1), a central water supply pipe (2), a drive rotating shaft (3), a planetary reduction mechanism (4), a high-speed recoil drive arm (5), and a low-speed spraying arm (6). The improvements are as follows: the base (7) is provided with first and second sealing rings (701, 702) to isolate sand and dust; the upper end face of the base and the central groove are provided with sand discharge holes (703); the lower end of the first water distribution chamber (501) is provided with a double sealing ring layer (504), and the high-speed recoil drive arm at the corresponding position is provided with a debris discharge hole (505); the top of the high-speed recoil drive arm is provided with a sealing thread sleeve (506) to cooperate with the upper sealing ring (507); the inner wall of the central water supply pipe (2) is provided with ribs (202) that have both reinforcement and flow guiding functions; the low-speed spray arm (6) consists of two bifurcated arms of different heights, with nozzles of different sizes installed at angles of 30-38° and 5-20° respectively to balance the reaction force. While maintaining the advantages of the original double swirl field, the present invention significantly improves the anti-clogging ability and operational balance, and is especially suitable for surface water irrigation with high sand content.

This utility model discloses a water-saving irrigation device for rice cultivation, which includes a main water pipe (1), a pressurized water pump (2), multiple branch water pipes (3), and a controller (4). Each branch water pipe (3) has a water outlet pipe (5) installed at its end, which is vertically positioned in the rice field. Each water outlet pipe (5) has three water injection nozzles installed on it. Each water injection nozzle has a solenoid valve (6) installed on it. Above each water injection nozzle, there is an arc-shaped baffle (7) fixed on the water outlet pipe (5). Each baffle (7) has a soil moisture sensor (8) installed on its top surface. Each solenoid valve (6) and soil moisture sensor (8) is electrically connected to the controller (4). This utility model not only improves water utilization efficiency but also has the advantages of good irrigation effect, good water-saving effect, convenient use, long service life, convenient maintenance, high irrigation rate, simple structure, and high structural stability.

This invention discloses a method for the selection and configuration of Chinese fir (Cunninghamia lanceolata) germplasm that integrates hydraulic structure and resource utilization efficiency, belonging to the field of germplasm selection technology. The method includes: S1, establishing a functional trait database of Chinese fir germplasm based on leaf, wood, root, and hydraulic characteristics of different germplasm sources; S2, constructing a water-carbon efficiency strategy map based on the germplasm functional trait database, and selecting and configuring Chinese fir in different regions based on the water-carbon efficiency strategy map. This invention quantifies the "water consumption-carbon sequestration" trade-off relationship of different germplasm sources, providing a quantitative basis for regional water resource management and carbon sequestration afforestation.