The diagnosis and recommendation integrated system (DRIS) for diagnosing the nutrient status of grassland swards: II. Model calibration and validation

Author: Bailey J.S.   Cushnahan A.   Beattie J.A.M.  

Publisher: Springer Publishing Company

ISSN: 0032-079X

Source: Plant and Soil, Vol.197, Iss.1, 1997-11, pp. : 137-147

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