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Torta Filtro

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VALOR FERTILIZANTE DA<br />

TORTA DE FILTRO<br />

Nutrientes<br />

Nutrientes<br />

na<br />

TORTA FILTRO<br />

(30t ha -1 ) Economia<br />

Mat. Seca Equiv. Fertilizantes<br />

% -------- kg ha -1 ------- US$/ha<br />

N 1,20 160 (Urea) 43<br />

P 0,87 285 (TSP) 96<br />

K 0,50 60 (KCl) 13<br />

Ca 2,86 800 (Calcário) 10<br />

Mg 0,30 -- ?<br />

S 1,17 -- ?<br />

Umidade 79 -- --<br />

Mat.Org. 60 -- ?<br />

Relação C/N 28 -- --<br />

TOTAL 162.00<br />

N = 0,60/kg; P 2<br />

O 5<br />

= 0,80/kg; K 2<br />

O = 0,35/kg; Calcário = 12,00/ton.<br />

Fonte: Adaptado de Copersucar (1988) & Cerri et al.(1988).

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