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|a Sistema de Bibliotecas de la Universidad de Panamá
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|a T - 633.2 - G93e
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|a Guevara, Augusto
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|a Efectos de varios niveles de nitrógeno (N) y fósforo (P) en el rendimiento y composición química del pasto Pangola (Digitaria decumbens Stent)
|c / Augusto Guevara
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|a Panamá
|b : Universidad
|c , 1981.
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