00591     2200181   4500001002100000008004100021035002000062245010600082100003500188260002500223300005900248520001700307082001300324650001300337650002000350650002500370990001400395INLIS000000000004383                                   Ind    a0010-1118004383  aCrop management research and extension : the products and their impact on productivitycTRAXLER, Greg  aGreg Traxler and Derek Byerlee  aLisboabCIMMYTc1992  avii, 57 p.: ill.; 26 cm.--cvii, 57 p.: ill.; 26 cm.--  aBibl.: p. 55  a633.1-11  aRESEARCH  aCROP MANAGEMENT  aEXTENSION ACTIVITIES  a614/MS/94