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On the Use of Stigter's Ratio in Expressing the Thermal Efficiency of Grass Mulches

Published online by Cambridge University Press:  03 October 2008

C. O. Othieno ,
C. J. Stigter  and
A. R. Mwampaja
C. O. Othieno
Affiliation:
Tea Research Foundation of Kenya, Kericho, Kenya
C. J. Stigter
Affiliation:
Section Agricultural Physics, Physics Department, University of Dar es Salaam, Tanzania
A. R. Mwampaja
Affiliation:
Section Agricultural Physics, Physics Department, University of Dar es Salaam, Tanzania
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Summary

Data from mulched tea show that an earlier defined ratio of temperature fluctuations in thermally homogeneous soil can be successfully used in rating the thermal efficiency of artificial grass mulches. The efficiency of a natural mulch of growing grass is also determined for comparison. It is demonstrated that the use of the ratio is more precise than using average temperatures in assessing the effects of the mulches.

Type
Research Article
Information
Experimental Agriculture , Volume 21 , Issue 2 , April 1985 , pp. 169 - 174
Copyright
Copyright © Cambridge University Press 1985

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References

REFERENCES

Mellaart, E. A. R. (1975). Muls en mikroklimaat (mulch and microclimate, in Dutch only). Mededelingen Landbouwhogeschool 75:1–29.Google Scholar
Mwampaja, A. R. (1983). Soil temperature effects of mulching, including a review of mulch use in Tanzanian farming and an example of soil temperatures under mulched tea in Kericho, Kenya, M.Sc. thesis. Physics Department, University of Dar es Salaam.Google Scholar
Othieno, C. O. (1980). Effects of mulches on soil water content and water status of tea plants in Kenya. Experimental Agriculture 16:295–302.CrossRefGoogle Scholar
Othieno, C. O. (1982). Diurnal variations in soil temperature under tea plants. Experimental Agriculture 18:195–202.CrossRefGoogle Scholar
Othieno, C. O. & Ahn, P. M. (1980). Effects of mulches on soil temperature and growth of tea plants in Kenya. Experimental Agriculture 287–294.CrossRefGoogle Scholar
Stigter, C. J. (1984a). Mulching as a traditional method of microclimate management. Archives for Meteorology, Geophysics and Bioclimatology Ser. B 35:147–154.Google Scholar
Stigter, C. J. (1984b). Examples of mulch use in microclimate management by traditional farmers in Tanzania. Agriculture, Ecosystems and Environment 11:173–176.CrossRefGoogle Scholar
Stigter, C. J. (1984c). Traditional use of shade: a method of microclimate management. Archives for Meteorology, Geophysics and Bioclimatology, Ser. B 34:203–210.CrossRefGoogle Scholar
Stigter, C. J. (1984d). Shading: a traditional method of microclimate manipulation. Netherlands Journal of Agricultural Science 32:81–86.CrossRefGoogle Scholar
Stigter, C.J., Mjungu, Y. B., Lutege, P. B. M., Waryoba, J. M., Othieno, C. O. & Mwampaja, A. R. (1984a). Relationships between soil albedos and soil and air temperatures. Netherlands Journal of Agricultural Science 32:33–42.CrossRefGoogle Scholar
Stigter, C. J., Mwampaja, A. R. & Kainkwa, R. M. R. (1984b). Infrared surface and thermistor sub-surface temperatures explaining the thermophysical character of grass mulches. Proceedings of the Second International Symposium on Temperature Measurement in Industry and Science. IMEKO, Suhl (GDR): 523–532.Google Scholar
Stigter, C. J., Othieno, C. O. & Mwampaja, A. R. (1984c). An interpretation of temperature patterns under mulched tea at Kericho, Kenya. Agricultural and Forest Meteorology 31:231–239.CrossRefGoogle Scholar
Van Wijk, W. R. (Ed., 1966). Physics of Plant Environment. Amsterdam: North-Holland Publishing Company, pp. 382.Google Scholar