Nutritional diagnosis of coffee plantations in Southern Minas Gerais State, Brazil: DRIS norms and adequate foliar contents
The southern part of Minas Gerais State is an important coffee producer region in Brazil. Though coffee yields are still quite low. Plant tissue analysis based on sufficiency ranges as well as the Diagnosis and Recommendation Integrated System (DRIS) are important tools for the correct use of fertilizers. This study aims to: (i) compare nutritional diagnostics for coffee (Coffea arabica) plantations of the region referred to, derived from standards published in literature, (ii) establish DRIS norms,and (iii) suggest adequate foliar contents for nutritional diagnoses of coffee plantations in southern Minas Gerais State, Brazil. The use of reference values suggested in literature brought forth different nutritional diagnoses for the crop years 1998/99 and 1999/2000. DRIS norms were established and nutritional foliar standards for coffee plantations in Southern Minas Gerais State suggested as follows: N=34.7 g kg-1, P=1.72 g kg-1, K=22.1 g kg-1, Ca=11.8 g kg-1, Mg=3.06 g kg-1, S=1.78 g kg-1, B=65.9 mgkg-1, Cu=37.1 mg kg-1, Fe=110.7 mg kg-1, Mn=372.3 mg kg-1, and Zn=17.0 mg kg-1.
| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
2002
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| Subjects: | COFFEA, COFFEA ARABICA, CAFE, RENDIMIENTO DE CULTIVOS, DIAGNOSTICO, DIAGNOSIS FOLIAR, ABONOS, HOJAS, CALCIO, MAGNESIO, NITROGENO, FOSFORO, POTASIO, AZUFRE, DISPONIBILIDAD DE NUTRIENTES, NUTRICION DE LAS PLANTAS, OLIGOELEMENTOS, EFICACIA, |
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