The Efficiency of Blocks in Some Experiments in Kenya

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Date
1960/1961
Authors
Clarke,R. T.
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Abstract
Field Experiments in the tropics are frequently hampered by inherent variation in the experimental material greater than that met with in more temperate latitudes. Soil variation is such a factor in much of Kenya and on an experimental site a fertility trend is often small in comparison with local variability in the form of soil patches. Such variability may be caused by the presence of destroyed ant-hills and of former hut sites which cannot always be distinguished and avoided before the experiment is begun.
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East African Agricultural And Forestry Journal, 26, p. 230-230