| Autor: |
S.R. Wellings, P.D. Ah Koon, M.G. Hodnett, J.P. Bell |
| Rok vydání: |
1990 |
| Předmět: |
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| Zdroj: |
Agricultural Water Management. 17:171-187 |
| ISSN: |
0378-3774 |
| DOI: |
10.1016/0378-3774(90)90064-6 |
| Popis: |
A concept of Soil Water Status, expressed in terms of soil water potential, has been developed within a study of plant/soil water relations in drip irrigated sugar cane trials in Mauritius. Unlike surface or overhead irrigation, soil water distribution resulting from drip irrigation is not one-dimensional; simple soil water content concepts such as field capacity and available water capacity are inappropriate. Soil water potential data derived from vertical arrays of tensiometers set out across the crop row/dripline units were used to plot and quantify the soil water distributions resulting from the many different treatments and regimes. The soil water status concept enabled the extensive soil water potential dataset to be presented in condensed diagrammatic and numeric form. This facilitated comparisons between treatments, crop years and specific growth stages and provided data for mathematical treatments and correlation between soil water conditions and plant physiological and agronomic data. Some examples of early analysis utilising the concept are presented. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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