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Report 1992

Autor: Fischer, Albert J. Lozano, J.C. Ramírez Suárez, A. Sanint, Luis Roberto

The critical period of rice-weed competition was studied for the rice varieties Oryzica 1 and CICA 8, in 1989 and 1990. Weed species were: Eleusine indica, Echinochloa crus-galli, Echinochloa colonum, Cyperus difformis, Cyperus esculentus, Cyperus iria, Leptochloa filiformis, and Eclipta alba. Co...

Enlace original: https://cgspace.cgiar.org/handle/10568/72372

Investigación en Agricultura
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Fischer, Albert J. ,  Lozano, J.C. ,  Ramírez Suárez, A. ,  Sanint, Luis Roberto ,  [Yield loss prediction for integrated weed management in direct-seeded rice] ,  Yield loss prediction for integrated weed management in direct-seeded rice
Report 1992

Autor: Fischer, Albert J. Ramírez Suárez, A.

Weed control in Latin America is costly and heavily dependent upon herbicides. Often irrigated rice farmers spray herbicides in late post-emergence at 30 to 44 days after emergence (d.a.e.). The economic benefits from such late applications are often unclear. Two experimental approaches involving...

Enlace original: https://cgspace.cgiar.org/handle/10568/71416

Investigación en Agricultura
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Fischer, Albert J. ,  Ramírez Suárez, A. ,  [Mixed weed infestations : prediction of crop losses for economic weed management in rice] ,  Mixed weed infestations : prediction of crop losses for economic weed management in rice
Journal Article 1999

Autor: Flórez, J.A. Fischer, Albert J. Ramírez, Héctor V. Duque E., Myriam Cristina

Monoculture of irrigated rice (Oryza sativa L.) in Latin America has led to serious weed problems and intensive herbicide use. Yield loss prediction enables the economic analysis of weed control, providing a basis for strategic use of herbicides and diversified weed management, but site differenc...

Enlace original: https://cgspace.cgiar.org/handle/10568/43970

Investigación en Agricultura
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Flórez, J.A. ,  Fischer, Albert J. ,  Ramírez, Héctor V. ,  Duque E., Myriam Cristina ,  [Predicting rice yield losses caused by multispecies weed competition] ,  Predicting rice yield losses caused by multispecies weed competition

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