00289nam a2200097Ia 4500008004100000040002900041050002500070100000800095245006800103260002000171230222s9999||||xx |||||||||||||| ||und||  cChuka University Library  aFAO S 639 bC67 1980  aFAO 0aSoil and plant testing as a basis of fertilizer recommendations  aFAObROMEc1980