Bull. Spec. CORESTA Congress, Harare 1994, p. 79, APOST 20
The importance of research to the Zimbabwean tobacco farmer
Tobacco Research Board, Harare, Zimbabwe.
The increase in the average yield of tobacco grown in Zimbabwe from 400 to 2600 kg/ha is graphically presented. The yield data has been statistically adjusted, by regression analysis, to accommodate for the effect of annual rainfall, by computing the...