EFFECT OF NITROGEN FERTILIZER (UREA) ON SOIL ACIDITY INDICES UNDERLOWLAND RICE CULTIVATION IN YOLA, NIGERIA
The experiment was conducted for two years to determine the effect of N fertilizer application rates (0, 50, 100 and 150 kg/ha on grain yield, pH, calcium (Ca), magnesium (Mg), base and acidity saturation of the soil in FARO 44 lowland rice cultivation. Grain yield was significantly (P= 0.05) affected by the N fertilizer rates; it increased line...