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Soil water balance and evapotranspiration of irrigated cotton

Published online by Cambridge University Press:  27 March 2009

W. R. Stern
W. R. Stern
Affiliation:
Division of Land Research, CSIRO, Canberra, Australia
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Extract

In a series of five irrigated cotton sowings (T2, T7, T9, T11, T14) evapotranspiration (Et) was determined for the period between October 1961 and October 1962 by observing frequently the changes in soil moisture storage, calculating through drainage, and solving for evapotranspiration in the water balance equation. Thus a water balance was obtained for each sowing extending over the entire crop.

The average evapotranspiration in wet season sowings was of the order of 6·5 mm day−1 and in dry season sowings of the order of 4·5 mm day−1. The highest evapotranspiration values ranged between 10 and 12 mm day−1 in T2, T7 and T9 and between 7 and 9·5 mm day−1 in T11 and T14.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 69 , Issue 1 , August 1967 , pp. 95 - 101
Copyright
Copyright © Cambridge University Press 1967

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