Yanggen, David (contributor) - 1998
is needed to reverse the decline as the supply of organic fertilizers
is not adequate;
G26 Contrary to the conventional … benefits. As concerns for the
environment increase, more attention to fertilizer’s environmental benefits (e.g., less … Stagnation and Decline in Sub-Saharan Africa ...................1
1.2. The Role of Fertilizers in Sub-Saharan Africa …