Published October 30, 1974
Volume 51 Number 4

Foreword

G.G. Gianetti
462 - 467
Growth and Development of I.C.T.A.
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Research Papers

R.W. Borden, B.P. Warke Tin
An irrigation rating for some soils in Antigua, W.I.
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R.C. Dalal, R.F. Darroo, T. Indalsingh
Relative efficiency of sulphur coated Urea, urea and ammonium sulphate in a calcareous soil
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F. J. Olsen
Effects of nitorigen fertilizer on yield and protein content of Brachiaria mutica (Forsk.) Stapf, Cynodon dactylon (L.) Pers., and Setaria splendida Stapf in Uganda
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R.H. Stover
Effect of measured levels of Sigatoka disease of bananas on fruit quality and leaf senescence
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N.C. Lyon, W.T.H. Peregrine
Prevalence of potato· viruses X, S and M in Malawi
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A.H. Osman, W.S. Russell
Comparative performance of different grades of European-Zebu crossbred cattle at Ghurashi Dairy Farm, Sudan
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M.W. Smith
A survey of the distribution of the Ixodid ticks Boophilus microplus (Canestrini, I888) and Amblyomma cajennense (Fabricius, I787) in Trinidad and Tobago and the possible influence of the survey results on planned livestock development
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O.E.M. Hassan
Utilization of tropical feedingstuffs in the nutrition of modern commercial laying stock
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Book Review

A.C. Barnes
BOOK REVIEW By C.R. McD. - The Sugar-cane
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E.W. Russell
BOOK REVIEW By L.A.W. - Soil Conditions and Plant Growth
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H.C. Pereira
BOOK REVIEW By F.A.G. - Land Use and Water Resources
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J.C. Fidler, B.G. Wilkinson, K.L. Edney, R.O. Sharples
BOOK REVIEW By L.A.W. - The Biology of Apple and Pear Storage
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R.F. Dasmann, J.P. Milton, P.H. Freeman
BOOK REVIEW By P.R.B.- Ecological Principles For Economic Development
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Research Notes

H.C. Harries
Natural symptom remission of lethal yellowing disease of coconut
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K.D. Ritchley, R.H. Fox
Use of wick-watering for glasshouse pots in the tropics
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S.A. Adenikinju
A rapid non-destructive means of calculating leaf area in cocoa
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