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Pests and diseases of the vine. Publication year: 1965 Language: spanish Numerous phyto and zooparasitic agents act on vine cultivation, many of which are endemic in the main growing areas, which annually reduce the harvest in significant amounts, apart from the indirect d... Free eBook |
![]() | H.T.Nº 63. Analysis of herbicides derived from urea in commercial formulations by liquid chromatography. Publication year: 1990 Language: Spanish The determination of urea-derived herbicides in different commercial formulations of one or more active ingredients has been studied. The herbicides studied have been the chloroxuron, chlortoluron, di... Free eBook |
![]() | Efecto del error de estimación de la correlación genética sobre los índices de selección, y eficacia del índice óptimo y de ganancias deseadas para selección antagónica en Tribolium castaneum Publication year: 1990 Language: Spanish ... Free eBook |
Considerations on development planning in areas of socioeconomic depression. Publication year: 1982 Language: Spanish The concept of socioeconomic depression, used from the spatial perspective, is usually applied to those areas that suffer a deep crisis in their socioeconomic structures, the result of not having been... Free eBook |