Table 1.

Recommended and actual fertilizer application rates for two sub-Saharan African countries. (Adapted from table 8.1 in Vanlauwe et al. (2004).)

	Southern Benin	Northern Nigeria
recommended national rates (kg ha−1 yr−1)
N	60	120
P	17	26
K	0	50
current national rates (kg ha−1 yr−1)
N	2.3	1.5
P	0.5	0.2
K	1.1	0.3