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Journal Article 1974

Autor: Piedrahíta Castañeda, Wilson Doll, J.

The herbicides dalapon, glyphosate, paraquat, MSMA, and diuron were evaluated for their postemergence selectivity in cassava (Manihot esculenta Crantz). Four methods of application were also tested: with a shield, directed without a shield, and hitting the lower 25 or 50 percent of the plant. In ...

Enlace original: https://cgspace.cgiar.org/handle/10568/88359

Investigación en Agricultura
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Piedrahíta Castañeda, Wilson ,  Doll, J. ,  [Herbicidas postemergentes en yuca (Manihot esculenta Crantz) selectividad, metodos de aplicacion e interaccion con edad] ,  Herbicidas postemergentes en yuca (Manihot esculenta Crantz) selectividad, metodos de aplicacion e interaccion con edad
Journal Article 1975

Autor: Piedrahíta Castañeda, Wilson Mesia P., R. Doll, J.

Two studies were conducted to determine the best integrated weed control system for cassava (Manihot esculenta Crantz), in addition to the selectivity of preplant incorporated (PPI) herbicides and their interactions with the planting system. Three preemergence treatments followed by hand weeding ...

Enlace original: https://cgspace.cgiar.org/handle/10568/88369

Investigación en Agricultura
Enlace permanente
Piedrahíta Castañeda, Wilson ,  Mesia P., R. ,  Doll, J. ,  [Control integrado de malezas y uso de herbicidas PSI en yuca (Manihot esculenta Crantz)] ,  Control integrado de malezas y uso de herbicidas PSI en yuca (Manihot esculenta Crantz)
Journal Article 1977

Autor: Doll, J. Pinstrup-Andersen, Per Díaz, R.O.

A survey of weeds and weeding practices was carried out by a team of agricultural economists and agronomists on 283 farms in 5 cassava-growing regions of Colombia at 3 times during a cropping season. From 71-78 percent of the weed species present were broad- leaved species. As cassava grew older,...

Enlace original: https://cgspace.cgiar.org/handle/10568/88321

Investigación en Agricultura
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Doll, J. ,  Pinstrup-Andersen, Per ,  Díaz, R.O. ,  [An agro-economic survey of the weeds and weeding practices in cassava (Manihot esculenta Crantz) in Colombia] ,  An agro-economic survey of the weeds and weeding practices in cassava (Manihot esculenta Crantz) in Colombia
Journal Article 1974

Autor: Camacho, A.J. Argel M., Pedro J. Doll, J.
Enlace original: https://cgspace.cgiar.org/handle/10568/88355

Investigación en Agricultura
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Camacho, A.J. ,  Argel M., Pedro J. ,  Doll, J. ,  [Control de gramalote (Paspalum fasciculatum Willd.) con dalapon y glifosato y establecimiento de pasto Para (Brachiaria mutica)] ,  Control de gramalote (Paspalum fasciculatum Willd.) con dalapon y glifosato y establecimiento de pasto Para (Brachiaria mutica)
Journal Article 1977

Autor: Díaz, R.O. Pinstrup-Andersen, Per Doll, J.

A survey was made of weed species, weed densities and common weeding practices on 3 visits during the growing season to some 300 farms in 5 cassava-growing regions of Colombia. Broadleaf weeds were the commonest in all regions (62-65 percent of the species); there was a shift to slightly more gra...

Enlace original: https://cgspace.cgiar.org/handle/10568/88413

Investigación en Agricultura
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Díaz, R.O. ,  Pinstrup-Andersen, Per ,  Doll, J. ,  [Las malezas y su control en el cultivo de la yuca en Colombia] ,  Las malezas y su control en el cultivo de la yuca en Colombia
Journal Article 1977

Autor: Altieri, Miguel A. Doll, J. Schoonhoven, Aart van

Tropical agroecosystems constitute diversified systems with crops arranged in polycultural patterns. Weeds are important components of these systems and condition insect diversity and stability. In an attempt to gather experimental evidence as a basis for tropical pest management strategies, 9 fi...

Enlace original: https://cgspace.cgiar.org/handle/10568/88412

Investigación en Agricultura
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Altieri, Miguel A. ,  Doll, J. ,  Schoonhoven, Aart van ,  [Interacciones entre insectos y malezas en mono y policultivos de maiz y frijol] ,  Interacciones entre insectos y malezas en mono y policultivos de maiz y frijol

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