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A wheat grazing systems model for the US Southern Plains: Part I--Model description and performance
Rodriguez, Abelardo; Trapp, James N.; Walker, Odell L.; … - In: Agricultural Systems 33 (1990) 1, pp. 41-59
Persistent link: https://www.econbiz.de/10005508223
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Estimating nitrogen percolation relationships: An application of tobit analysis
Teague, Mark L.; Bernardo, Daniel J.; Sabbagh, George J.; … - In: Agricultural Systems 45 (1994) 2, pp. 155-173
Persistent link: https://www.econbiz.de/10005373763