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Relación simbiótica de Azolla (Azolla caroliniana, A. filiculoides, A. mexicana)-Anabaena (Anabaena azollae) para la producción de nitrógeno en ecosistemas acuáticas de la zona de Cayambe 2010
Cabezas Monteros, Ricardo José (dic-2011) - [Director: Tafur Recalde, Valdano Leopoldo]
This research shows the evaluation of 3 different species of aquatic fern Azolla in
relation to the fixation of atmospheric nitrogen in the form of nitrite (NO-
2) and nitrates
(NO-
3) happens in the culture water of this fern, growth and productivity in aquatic
ecosystems in the area of...
Respuesta del cultivo de arveja (Pisum sativum L.) a la aplicación complementaria de tres fertilizantes foliares a tres dosis. San Gabriel. Carchi
Flores Flores, Mauricio Alejandro (mar-2010) - [Director: Tafur Recalde, Valdano Leopoldo]
The farmers with the aim of increasing in the performances, quality of their products have considered the bio-stimulant use, like an one belonging to the alternatives for the better and giving a total spin to the national production for which this investigation presents like objectives: Determining...