ABSTRACT.
Survey of soil nutritive deficiencies using pot experiments. XXV. Influence of the NPKCaS purity on samp les from Cautín. Part I

Gotardo Schenkel S.1, Pedro Baherle V.2 y Mauricio Gajardo M.3
 

This Part I includes only the Introduction and the Literature Review. Part II will include Materials and Methods, Results and Discusion, and Conclusions, obtained from the experimental comparison between two equivalent NPKCaS fertilizations: a. chemical substances of analytical quality; and b. commercial fertilizers. The general conclusion is that the number of soils poor in micronutrients has been underestimated, because of the micronutrients contained as impurities in the commercial fertilizers.

Keywords:
1 Facultad de Ciencias Agropecuarias y Forestales, U. de Concepción, Casilla 637, Chillán, Chile.
2 Estación Experimental La Platina (INIA), Casilla 5427, Santiago, Chile.
3 Estación Experimental Carillanca (INIA), Casilla 58-D, Temuco, Chile.