Concluding Workshop. Improvement of Efficiency and Environmental Impact of Nitrogen Fertilizers in irrigated Rice Cropping in South East Asia FAO text Jakarta FAO 1999 7p, 30 cm IRRIGATED RICE NITROGEN FERTILIZERS ENVIRONMENTAL IMPACT EFFICIENCY 633.18-18 633.18-18 INLIS000000000003628 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)