TY - BOOK AU - Duque, Conmdrado M. TI - Management of phosphorus for sustainable food crop production on acid uplands soils in Mindanao, Philippines: pp. 1-37 SN - 0116-7847 AV - JF LB 1028 C4 2002 KW - ACIDIC UPLANDS KW - EFFECT OF TREATMENTS ON SOIL Ph KW - ACID SOILS KW - MANAGEMENT AND UTILIZATION KW - AGRICULTURE KW - FERTILIZER N1 - CMU Journal of Science Vol. 10 No. 2 Jy/D, 2002 ER -