University of Zambia Library Search for 'su:"Crop Yields"'

Harnessing divideds from drylands : lbinnovative scaling up with soil nutrients/lcedited by K.V. Raju and Suhas P. Wani

Wallingford : lbCAB International, lc 2016 . xiii, 307p. : lbill. 9781780648156

By James Garrett, Ryan. . xii, 194p.:

Rome: Food And Agriculture Organization, 2012 . xiii,500p.: 9789251072745

Boston, MA : CAB International, 2016 . xiii, 319p.: 9781780648156

London ; Boston : Butterworths, 1981 , Proceedings of the thirtieth Univ. of Nottingham Easter School in Agricultural Science. 0408106492

Rome : Food and Agriculture Organization of the United Nations, 1962

Rome : FAO, 1982