na INLIS000000000007372 0010-1021002206 ARAHAN Kebutuhan Pupuk SP-36 dan KCL Tanaman Padi di Kabupaten Mandailing Natal Murizaf ...[et.al] Medan BPTP Sumut 2002 ii; 22p ill; 20 cm Br. 633.18-18 Br. 633.18-18 RICE PHOSPHATE FERTILIZERS FERTILIZERS POTASH. 6899