Published April 30, 1989
Volume 66 Number 2

Research Papers

David L. McNeil
Weed control in Plantago ovata Forsk.
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Luiz J.C.B. Carvalho, Stanley C. Schank
Effect of water stress on the growth of Stylosanthes hamata (L.) Taub. cv Verano and Stylosanthes guianensis (Aubl.) Sw. cv Schofield
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Robert V. Dowell
Factors affecting the field effectiveness of Encarsia opulenta (Hymenoptera: Aphelinidae), a parasitoid of the citrus blackfly, Aleurocanthus woglumi (Homoptera: Aleyrodidae)
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Malachy O. Akoroda, Tesfaya Gebremeskel, A. Ebun Oyinlola
Impact of IITA cassava varieties in Oyo State, Nigeria, 1976-1985
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S.T. Mbap, L.O. Ngere
Productivity of Friesian cattle in a subtropical environment
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E. Kabaija, O.B. Smith
Influence of season and age of regrowth on the mineral profile of Gliricidia sepium and Leucaena leucocephala
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R.A. Plumbley, M.J. Jeger, W. Carbon
Optimal picking date of avocado in Dominica, W. Indies, in relation to flowering, fruit-growth and chilling
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K.L. Ayorinde
Effect of semen dosage and insemination frequency on the fertility of local Pearl guinea fowl in Nigeria
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A.R. Sena Gomes, T.T. Kozlowski
Responses of seedlings of two varieties of Theobroma cacao to wind
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T.I. Ofuya
Effect of weed removal regimes on postflowering insect damage and grain yield of cowpea, Vigna unguiculata (L.) Walp. in a rain forest area of Nigeria
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Safia T. Abdalla, M.Z. Hassan
Optimal planting date for seed quality and seed yield of irrigated soybean in Egypt
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M. Chandrashekar, T.B. Anil Kumar, M. Saifulla, Y.H. Yadahally
Effect of different dates of sowing cowpea on the severity of leaf rust caused by Uromyces phaseoli var. vignea
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H.E. Osman, Salih M. Samarraie, H.R. Mian, M.S. Alami
Growth analysis of maize and sunflower under different irrigation regimes
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Chryss F.I. Onwuka, A.O. Akinsoyinu
Effects of elemental sulphur levels on urea-nitrogen utilization by West African dwarf goats and sheep
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J.E. Asiegbu
Response of onion to lime and fertilizer N in a tropical Ultisol
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N. Kandasamy, D.C. Gupta
Factors affecting greasy fleece weight of indigenous and crossbred sheep under semi-arid conditions
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R.B. Dadson, C.B. Brooks
Responses of bambara groundnut (Voandzeia subterranea (L.) Thouars) to applied nitrogen in Southern Togo
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Research Notes

K. Abraham, S.G. Nair, M.T. Sreekumari
White yam, Dioscorea rotundata Poir., dwarf type
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Saichol Ketsa, Peeradet Tongumpai, Chamnonk Uthaiburt
Effect of daminozide on off-season growth and heading of leaf mustard
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Book Review

F.D. Gunstone
BOOK REVIEW By John A. Cornelius - Palm Oil
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R. Lal
BOOK REVIEW By A.J. Willis - Tropical Ecology and Physical Edaphology
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H.G. Van der Meer, R.J. Unwin, T.A. Van Dijk, G.C. Ennik, Martinus Nijhoff
BOOK REVIEW By J. Morrison - Animal Manure on Grassland and Fodder Crops. Fertilizer or Waste?
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