na INLIS000000000005241 20240718112203 0010-0923000007 ta 240718 g 0 dut OTTEN, J.M.L. Bemestingsleer / J.M.L Otten Veertiende druk Djakarta : J.B. Wolters, 1954 viii, 238 p. ;19 cm SPITHOST, C VEENSTRA, G. FERTILIZATION LADDER 00000003755