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1bibliotecaIICA
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4by 89306 Madrigal G, R., 112645 Rojas C, E, 15339 Oficina de Planificación Sectorial Agropecuaria, San José (Costa Rica)
Published [sf]bibliotecaIICA -
5by 58657 Constenla, M.A., 110797 Riley, D., 82745 Kennedy, S.H., 112645 Rojas, C.E., 96008 Mora, L.E., 121725 Stevens, J.E.B.
Published OctbibliotecaIICA -
6Interaction between a cover crop (Mucuna Sp.), a weed (Rottboellia cochinchinensis) and a crop (maize) Interaction between a cover crop (Mucuna Sp.), a weed (Rottboellia cochinchinensis) and a crop (maize)by 127175 Valverde, B.E., 93671 Merayo, A., 112645 Rojas, C.E., 42208 Alvarez, T., 3636 British Crop Protection Council, Surrey (RU), 34236 Brighton Crop Protection Conference. Weeds-1995 Brighton (RU) 20-23 Nov 1995
Published 1995bibliotecaIICA -
7[Etudes sur les périodes critiques de compétition des mauvaises herbes avec les ignames (D. rotundata Poir) et (C. alata)] [Etudes sur les périodes critiques de compétition des mauvaises herbes avec les ignames (D. rotundata Poir) et (C. alata)]by 52852 Calderón, G., 59336 Cortés, J., 112645 Rojas, C.E., 47424 Beale, A.J., 61806 Degras, L. ed., 11005 Institut National de la Recherche Agronomique, Paris (Francia), 7. Symposium of the International Society for Tropical Root Crops Gosier (Guadalupe) 1-6 Jul 1985
Published 1988bibliotecaIICA -
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9by 93671 Merayo, A., 127175 Valverde, B.E., 112645 Rojas, C.E., 53049 Calvo, G., 68349 Fonseca, F., 42208 Alvarez, T., 18964 Universidad Autónoma Chapingo, Chapingo (México). Dept. de Parasitología, 6. Congreso Internacional de Manejo Integrado de Plagas - 5. Taller Latinoamericano sobre Moscas Blancas y Geminivirus Acapulco, GRO (México) 29 Set - 4 Oct 1996
Published 1996bibliotecaIICA