Influence of season/year and species on chemical composition and in vitro digestibility of five Indigofera accessions by Hassen, Abubeker, Rethman, N.F.G., van Niekerk, W.A., Tjelele, T.J.

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The influence of tree thinning on the soil water in a semi-arid savanna of southern Africa by Smit, G.N., Rethman, N.F.G.

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Effects of farmyard manure and inorganic fertilizers on sorghum growth, yield, and nitrogen use in a semi-arid area of Ethiopia by Bayu, W, Rethman, N.F.G, Hammes, P.S, Alemu, G

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Growth and yield compensation in sorghum (Sorghum bicolor L. Moench) as a function of planting density and nitrogen fertilizer in semi-arid areas of northeastern Ethiopia by Bayu, Wondimu, Rethman, N. F.G., Hammes, P. S.

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Gypsiferous mine water use in irrigation on rehabilitated open-cast mine land: Crop Production, soil water and salt balance by Annandale, J.G, Jovanovic, N.Z, Pretorius, J.J.B, Lorentz, S.A, Rethman, N.F.G, Tanner, P.D

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Dry matter yield and quality of five annual subtropical fodder crops at different irrigation levels by Marais, D, Rethman, N.F.G, Annandale, J.G. (Pretoria Univ. (South Africa). Plant Production and Soil Science Dept.)

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role of animal manure in sustainable soil fertility management in Sub-Saharan Africa: a review by Bayu, W, Rethman, N.F.G, Hammes, P.S

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Die invloed van N-peil, grondtipe en waterstremming op die produksie en watergebruiksdoeltreffendheid van Panicum maximum cv. Gatton by Pieterse, P.A., Rethman, N.F.G. & Van Bosch, J.

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Die invloed van N-peil, grondtipe en waterstremming op die produksie en watergebruiksdoeltreffendheid van Panicum maximum cv. Gatton by Pieterse, P.A., van Bosch, J., Rethman, N.F.G.

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The influence of climate and soils on the distribution of four African grasses by Cox, J.R, Martin-R, M.H, Ibarra-F, F.A, Fourie, J.H, Rethman, N.F.G, Wilcox, D.G

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