Volume 63 Number 2

Table of Contents

Research Papers

Microbiology of tropical soils - a historical review
P.S. Nutman, F.R.S.
Experimental design: the first sixty years
S.C. Pearce
Dry matter yield and in vitro dry matter digestibility of winterhardy Panicum maximum Jacq. Selections
Wayne W. Hanna, Warren G. Monson, James W. Dobson, Jr., Ronny R. Duncan
The effects of phosphorus and nitrogen fertilizer level on nodulation, growth and dinitrogen fixation of three bean cultivars
H. Ssali, S.O. Keya
Edible fruit productivity and harvest duration of okra in southern Nigeria
M.O. Akoroda, O.A. Anyim, I.O.A. Emiola
Survival of blue-green algae in various carrier media
S.I. Kotb, J.S. Angle
Leaf characteristics for the identification of the banana cvs 'Robusta' and 'Giant Cavendish'
Gordon D. Holder, Graham Taylor
Effect of cutting management and nitrogen fertilization on yield and quality of Pennisetum pedicellatum Trin. (Dinanath grass)
G.D. Tyagi, Virendra Singh
Effect of cassava peel processing on the performance, nutrient utilization and physiopathology of the African giant rat (Cricetomys gambianus Waterhouse)
Olumide O. Tewe, Olajide B. Kasali
Number and effectiveness of cowpea rhizobia in soils of Guyana
A.A. Trotman, R.W. Weaver
Growth of wheat with heavy lime application
W.J. Folscher, R.O. Barnard, J.J. Bornman, J.A.J. van Vuuren
Phosphorus status of some Ethiopian soils
A. Piccolo, G. Huluka
Effects of fertilizers on yield and leaf nutrient concentrations in coconut
P. Loganathan, P.P. Atputharajah
Background factors related to the job satisfaction of extension field staff in Trinidad
Joseph Seepersad
Insecticidal control of sweet potato weevils (Coleoptera: Curculionidae) in Hawaii
Devaiah A. Muruvanda, John W. Beardsley, Wallace C. Mitchell
The adoption of innovation by cooperative farmers in Nigeria
Adeniyi Osuntogun, Remi Adeyemo, Edwin Anyanwu

Book Review

BOOK REVIEW By S.J. Mayo - Edible Aroids
S. Chandra