Microprocessor and Automation Techniques for Registration of Water Requirements, Stress Indexes, and Irrigation Timing Criteria of Corn and Beans Crops in the Brazilian South-East Irrigated Fields
2001
Instruments and automation techniques were used for registration of water
requirements and water stress indexes of corn and beans crops in the Brazil South-East
irrigated fields, by means of the energy balance/Bowen ratio and infrared thermometer methods,
seeking a rational irrigation management, a better water use efficiency and a reduction in the
energy consumption. Microelectronic devices, sensors and microprocessor technique were
used in the control, acquisition, transfer and storage of data and information, facilitating the
precise and fast registration, in real time, of the parameters involved in the process. Results are
helping to establish and define the decision moment of irrigation water application and water
stress levels control.
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