Sistema radicular do cacaueiro em duas unidades de solos do Estado de Sao Paulo
The root distribution for cacao was studied in two soils in the State of Sao Paulo, Brazil. The first soil type, located at the Pariquera-Acu Experimental Station was classified as red yellow podzolic intergrading to red yellow latossol and for the 10 twelve-year old trees studied, it was found that 61.6 per cent of the roots were distributed in the first 30 cm of soil; 21.4 per cent between 30 and 60 cm; 13.6 per cent between 60 and 90 cm and 3.4 per cent between 90 and 120 cm. The second soil, found in the "Planalto" between the valleys of the rivers Turvo and Mogi-Guacu, was a Marília variation of the podzol type Lins and Marília. In 10 five-year old cacao trees it was found that 70.8 per cent of the roots grew in the first 30 cm; 20.4 per cent between 30 and 60 cm, 6.5 per cent between 60 and 90 cm and 2.3 per cent between 90 and 120 cm. The physical characteristics of the two soil-types permitted a good root development which reached depths not normally observed in the traditional cacao growing areas of Bahia and Espírito Santo
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| Format: | biblioteca |
| Published: |
1972
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| Subjects: | THEOBROMA CACAO, TIPOS DE SUELO, SISTEMA RADICULAR, PROPIEDADES FISICO-QUIMICAS SUELO, ETAPAS DE DESARROLLO DE LA PLANTA, SAO PAULO, BRASIL, |
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