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Original Articles

The Persistence of Insecticides in Tropical Soils

I—Preliminary Investigations

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Pages 199-202 | Received 07 Jun 1957, Published online: 18 Dec 2015

References

  • Davies, O. L. Statistical Methods in Research and Production (Second Edition). Oliver and Boyd, London, 1949.
  • Russell, E. J. Soil Conditions and Plant Growth (Eighth Edition). Longmans, London, 1950, p. 332.
  • Tippett, L. H. C. Methods of Statistics (Fourth Edition). Williams and Norgate, London, 1952, p. 95.
  • Davies, O. L. Design and Analysis of Industrial Experiments (First Edition). Oliver and Boyd, London, 1954, Table E.l.

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