text Bangkok FADINAP 1987 eng 51 p. : ill. ; 29 cm. Bibl. p. 51 Fertilizer Advisory, Development and Information Network for Asia and the Pacific FERTILIZERS USES SRI LANKA 631.8.003.1 631.8.003.1 SUP 220703 20220703120054 INLIS000000000002772 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)