Resultados de búsqueda - Lawrence, P.R.

The introduction of animal traction into inland valley regions. 2. Dry season cultivation and the use of herbicides in rice por Lawrence, P.R., Dijkman, J.T.

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The introduction of animal traction into inland valley regions. 3. Different cultivation techniques for maize por Dijkman, J.T., Lawrence, P.R.

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Experimental methods in draught animal research por Lawrence, P.R., Pearson, R.A.

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Nutrition of draught oxen in semi-arid West Africa. 1. Energy expenditure by oxen working on soils of different consistencies por Fall, Abdou, Pearson, R.A., Lawrence, P.R.

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Recent advances in research on draught ruminants por Pearson, R.A., Zerbini, E., Lawrence, P.R.

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The introduction of animal traction into inland valley regions. 1. Manual labour and animal traction in the cultivation of rice and maize: A comparison por Lawrence, P.R., Dijkman, J.T., Jansen, G.P.

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Feeding and working strategies for oxen used for draft purposes in semi-arid West Africa por Fall, Abdou, Pearson, R.A., Lawrence, P.R., Fernández Rivera, S.

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Nutrition of draught oxen in semi-arid West Africa. 2. Effect of work on intake, apparent digestibility and rate of passage of food through the gastro-intestinal tract in draught o... por Fall, Abdou, Pearson, R.A., Lawrence, P.R., Fernández Rivera, S.

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Research for development of animal traction in West Africa. Proceedings of the fourth workshop of the West African Animal Traction Network por Lawrence, P.R., Lawrence, K., Dijkman, J.T., Starkey, P.H.

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