Effect of minimun and conventional tillage in bean (Phaseolus vulgaris L.) in the Northern Huetar Region in Costa Rica.

The work was conducted in the northern area ofCosta Rica where two plots were sown: one of minimumtillage (1.85 ha) and another of conventional tillage (2 ha).Both tillage systems were planted with a hydraulic sowerfertilizer. The sown variety was the Brunca. The population ofbean plants evaluated d...

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Autores Principales: Rojas, Luis Antonio, Chaves, Gerardo
Formato: Artículo
Idioma: Español
Publicado: Universidad de Costa Rica 2013
Acceso en línea: http://revistas.ucr.ac.cr/index.php/agromeso/article/view/12025
http://hdl.handle.net/10669/17897
Sumario: The work was conducted in the northern area ofCosta Rica where two plots were sown: one of minimumtillage (1.85 ha) and another of conventional tillage (2 ha).Both tillage systems were planted with a hydraulic sowerfertilizer. The sown variety was the Brunca. The population ofbean plants evaluated during the vegetative stage was of 9.37plants/lineal meter in minimum tillage, and of 9.55plants/lineal meter in conventional tillage. The weed densitywas larger under conventional tillage and the most prevalentweeds were Richardia scabra, Rottboellia cochinchinensis ySpermacoce sp. The dry weight of weeds was of 37.6 g ofweed/frame of 0.25 m2 in minimum tillage, while in theconventional tillage it was of 46.4 g of weed/frame. Theincidence and severity of web-blight (Tanatheporuscucumeris) in the system of minimum tillage was of 42.8%and of 0.83, respectively, while in conventional tillage it wasof 52.2% and 1.22, respectively. In the system of minimumtillage the yield was of 930 kg/ha, and in conventional of 676kg/ha.