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Video
Insects and weed control treatments at Cañada Rica
(1979)
The trainees of maize program describe the treatments realized to maize plants for the pest and weed control.
Video
Weed control and zero tillage trials
(1979)
An analysis about different trials for maize weed control in the plots of the experimental stations in Poza Rica and Cardel.
Video
Experimento básico de fertilizantes
([1979])
The maize's trainees explain the characteristics and results of the experiment on every plot of maize that has received treatment with some fertilizers.
Video
Jiliapa II : basic fertilizer
(1979)
The maize's trainees explain the characteristics and results of the experiment on every plot of maize that has received treatment with some fertilizers.