na INLIS000000000013022 Ind 0010-1118013022 Pengelolaan bahan organik tanah HERSALENA Hersalena Padang Fakultas Pertanian Universitas Ekasakti 1998 IV, 43 p. : ill. ; 29 cm. IV, 43 p. : ill. ; 29 cm. 631.417HERp 631.417 SOIL ORGANIC MATTER SOIL TREATMENT 150/D/2002