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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 1974

Autor: Doll, Jerry D. Piedrahíta Castañeda, Wilson

Twenty-six herbicides were evaluated at 3 rates each in cassava (Manihot esculenta Crantz). For the 21 preemergence herbicides, planting was done before application in half the plot and then in the other half. After incorporating the 5 preplant-incorporated products, half the plot was ridged befo...

Enlace original: https://cgspace.cgiar.org/handle/10568/88362

Investigación en Agricultura
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Doll, Jerry D. ,  Piedrahíta Castañeda, Wilson ,  [Margen de selectividad de varios herbicidas en la yuca] ,  Margen de selectividad de varios herbicidas en la yuca
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
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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 1992

Autor: Kachelriess, S. Alkamper, J. Tarawali, Shirley A.

Trials have been conducted at two sites in the subhumid zone of Nigeria to investigate the influence of weed control on seed quantity and quality using three tropical forage legumes, Centrosema pascuorum cv Cavalcade, Chamaecrista rotundifolia cv Wynn and Stylosanthes hamata cv Verano. Manaual we...

Enlace original: https://cgspace.cgiar.org/handle/10568/29956

Investigación en Agricultura
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Kachelriess, S. ,  Alkamper, J. ,  Tarawali, Shirley A. ,  [Unkrautbekampfung in Saatgutbestanden tropischer futterleguminosen in der subhumiden zone Nigerias (Weed control in tropical legumes for seed production in the subhumid zones of Nigeria)] ,  Unkrautbekampfung in Saatgutbestanden tropischer futterleguminosen in der subhumiden zone Nigerias (Weed control in tropical legumes for seed production in the subhumid zones of Nigeria)
Journal Article 1989

Autor: International Livestock Centre for Africa

Presents information on work carried out by ILCA in Ethiopia to develop an animal-drawn implement for reduced tillage, row planting and inter-row weeding. Comments briefly on the advantages and initial field test results on the implement.

Enlace original: https://cgspace.cgiar.org/handle/10568/4558

Investigación en Agricultura
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International Livestock Centre for Africa ,  [Animal-drawn tiller/planter/weeder tested] ,  Animal-drawn tiller/planter/weeder tested
Journal Article 1981

Autor: Leihner, D.E. Holguin V., J. López M., J.

Recent information on the biological balance between purple nutsedge (Cyperus rotundus) and cassava is analyzed; the possibilities of influencing this balance to favor cassava are also studied. The slow initial growth of cassava highly favors the development and propagation of C. rotundus, result...

Enlace original: https://cgspace.cgiar.org/handle/10568/88483

Investigación en Agricultura
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Leihner, D.E. ,  Holguin V., J. ,  López M., J. ,  [El coquito (Cyperus rotundus L.) en el cultivo de yuca: Interacciones y control] ,  El coquito (Cyperus rotundus L.) en el cultivo de yuca: Interacciones y control
Journal Article 1980

Autor: López M., J. Leihner, D.E.

In view of the lack of information on the use of herbicides in polycultures including non-commercial crop species, 2 expt. were designed to identify herbicides and doses suitable for crop associations including cassava. A total of 6 products were tested single or in mixtures having been chosen fo...

Enlace original: https://cgspace.cgiar.org/handle/10568/88474

Investigación en Agricultura
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López M., J. ,  Leihner, D.E. ,  [Control quimico de malezas en policultivos con yuca (Manihot esculenta Crantz)] ,  Control quimico de malezas en policultivos con yuca (Manihot esculenta Crantz)
Journal Article 1992-08-01

Autor: Dvorak, K.A.

"Shifting cultivation" - the alternation of periods of cropping with relatively long periods of fallow-encompasses many indigenous agricultural systems, developed in a remarkable diversity of environments throughout the tropics. When the fallow includes woody perennials, shifting cultivation is a...

Enlace original: https://cgspace.cgiar.org/handle/10568/81153

Investigación en Agricultura
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Dvorak, K.A. ,  [Resource management by west African farmers and the economics of shifting cultivation] ,  Resource management by west African farmers and the economics of shifting cultivation

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