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Plant-Controlled Atmometer for Measuring Crop Evapotranspiration
Plant-Controlled Atmometer for Measuring Crop Evapotranspiration
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机译:植物控制的湿度计,用于测量作物的蒸散量
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摘要
An atmometer device comprises a porous evaporator member, a suction tube communicating water from a reservoir to the porous evaporator member, a sensor measuring a moisture characteristic of soil associated with a crop, a mechanism arranged for controllably varying a rate of evaporation of the water through the porous evaporator member responsive to the moisture characteristic measured by the sensor, and an indicator arranged to indicate water loss in the reservoir. By controlling rate of evaporation of the water through the porous evaporator member responsive to the measured moisture characteristic of the soil, the amount of water loss in the reservoir during the given time period more accurately reflects crop evapotranspiration.
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