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OALib Journal期刊
ISSN: 2333-9721
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Acumula??o de matéria seca, absor??o de N, P e K pelo cafeeiro (Coffea arabica L. cv. Catuaí) com dois, tres, quatro e cinco anos de idade, nas fases fenológicas de repouso, grana??o e matura??o vegetando em um latossolo vermelho amarelo, fase cerrado

DOI: 10.1590/S0071-12761991000100014

Keywords: dry matter accumulation, extration n, p, k, ustoc.

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Abstract:

from a coffe plantation situated on a red-yellow latossol in the santo izidro farm near salto, state of s?o paulo, brazil, coffee plants two, theree four and five years old were cut near the ground level of the soil at the following growth periods: july (grow almost nihil), january (pin-head stage) and june (ripe stage). the material was divided into stem, branches, leaves and fruits and dried at 80) c and analyzed for n, p, k, by laboratory conventional methods. the authors concluded: - during the months of january an june the five years old trees accumulated the greatest quantities of dry matter and nutrients in the fruits. - fruits of five years old coffee trees export through-out the following percentages interms of the total content in the tree: n-45%, p-56%, k-62%.

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