Cietto, S. Haag, H.P. Dechen, A.R.

Absorçao de Ca, Mg e S pelo cafeeiro (Coffea arabica L. cv. catuaí) com dois, tres, quatro e cinco anos de idade; nas fases fenológicas de repouso, granaçao e maturaçao vegetando em um latossolo vermelho amarelho, fase cerrado Absorption of Ca, Mg and S by coffee plants (Coffea arabica L. cv. catuaí) two, three, four and five years old growing on a red-yellow latossol (ustox) - 1991

11 tab. 7 ref. Sum. (En, Pt)

From a coffee plantation situated on a Red-Yellow Latossol in the Santo Izidro farm near Salto, State of Sao Paulo, Brazil, coffee plants two, three, four and five years old were cut near the ground level of the soil at the following grown periods: July (grow almost nihil), January (pin-head stage) and June (ripe stage). The material was divided into stem, branches, leaves and fruits, dried at 80°C and analyzed by conventional laboratory methods. The authors concluded: - The greatest accumulation of calcium, occurs in the aerial parts of the five year old coffee plants during the months of July, January and June. The accumulation of magnesium and sulphur, differ for the different ages of the tree. - Fruits of five year old coffee trees export through-out the following percentage in terms of the total content in the tree: Ca - 26 per cent; Mg-32 per cent and S - 37 per cent.


COFFEA ARABICA
CATUAI
FERTILIZANTES DE OLIGOELEMENTOS
ABSORCION DE NUTRIENTES
CALCIO
MAGNESIO
AZUFRE
FENOLOGIA
BRASIL