Modelling crop-weed interactions / edited by M. J. Kropff & H.H. Van Laar - Manila : International Rice Research Institute (IRRI) , 1993 - xvi, 274p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 9712200388 Subjects--Topical Terms: WeedsPlant ecologyCropsWaterModels Gov. Doc. Class. No.: XZ IRRI Mod-2