Descubre y comparte nuestro conocimiento público

Se han encontrado 35 recursos

Resultados de búsqueda

Doll, Jerry D.Piedrahíta Castañeda, Wilson[Control químico de malezas en arroz de riego con semilla directa y semilla pregerminada]Control químico de malezas en arroz de riego con semilla directa y semilla pregerminada

A four-season trial was conducted using continuous maize (Zea mays L.) and soybeans (Glicine max (L.) Merr.) with the continuous use, rotation or combination of various herbicides to determine weed species shifts. No weed species increased in maize treated for four seasons with atrazine (2-chloro...


Doll, Jerry D.Piedrahíta Castañeda, Wilson[Herbicide and crop rotation effects on the weed complex]Herbicide and crop rotation effects on the weed complex

Doll, Jerry D.Piedrahíta Castañeda, Wilson[Methods of weed control in cassava]Methods of weed control in cassava
Doll, Jerry D.[Weed science at CIAT (Centro Internacional de Agricultura Tropica) and weed problems in Latin America]Weed science at CIAT (Centro Internacional de Agricultura Tropica) and weed problems in Latin America

In this study a new formulation of EPTC, the new products glyphosate and napropamide and high rates of butilate, vernolate and EPTC were tested in purple nutsedge (Cyperus rotundus L.). The slow release formulation of EPTC was more persistant than the regular EPTC. High rates (16 kgia/ha) of the ...


Piedrahíta Castañeda, WilsonDoll, Jerry D.[Aspectos recientes en el control del coquito (Cyperus rotundus L.)]Aspectos recientes en el control del coquito (Cyperus rotundus L.)

Some of the differences and similarities between the extension service agronomists and those of technical assistance were compared. Important differences in percent of time dedicated to weed control, sources of information and the importance that the farmers of each group assign to weed control w...


Doll, Jerry D.[La extensión agrícola y la asistencia técnica en el control de malezas en Colombia]La extensión agrícola y la asistencia técnica en el control de malezas en Colombia

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso