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Published online by Cambridge University Press: 03 October 2008
The results are presented of an investigation into the use of very small plots for experimental work on maize (Zea mays) and groundnut (Arachis hypogaea), for the first three harvests of a project which is continuing. Despite the diminutive plot size, the random variation was quite low, resulting in a fairly sensitive experiment. The yield responses to increasing plant density were pronounced for both maize and groundnut, giving optimal spacings of 30 × 6 in. and 12 × 4 in. respectively.