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A. Loreto ; M. Morgan ; AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS SAINT JOSEPH USA ; Annual international meeting, Phoenix, USA, 14-18 july 1996 (1996) | St Joseph, USA : ASAE | 1996An automated system for field measurement of soil nitrate was developed to aid in the spot-by-spot application of fertilizer N. The system consisted of three main components : 1- core sampling wheel ; 2- indexing and processing table and 3- data[...]
