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Agriculture

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2001

Evapotranspiration

Articles 1 - 2 of 2

Full-Text Articles in Forest Sciences

Comparing Cotton Evapotranspirations Estimated By Micrometeorological And Water Budget Methods, Mustafa Ünlü, Riza Kanber, Kenan Di̇ker, Pasquale Steduto Jan 2001

Comparing Cotton Evapotranspirations Estimated By Micrometeorological And Water Budget Methods, Mustafa Ünlü, Riza Kanber, Kenan Di̇ker, Pasquale Steduto

Turkish Journal of Agriculture and Forestry

This study aimed at comparing actual water consumption of cotton obtained by the water balance method under full and limited irrigation conditions, with that estimated by a micrometeorological method (energy balance), which is being widely used nowadays. Results indicated that in the first year the total irrigation water applied was 438 mm, whereas in the second year it was 199 mm. Deep percolation losses were were 6 and 0 mm, respectively, in the first and second year of the experiment. The evapotranspirations of cotton under full irrigation condition were 496 and 629 mm for the energy balance and water budget …


An Evapotranspiration Model For Nursery Plants Grown In A Lysimeter Under Field Conditions, Hali̇l Kirnak, Ted Henry Short Jan 2001

An Evapotranspiration Model For Nursery Plants Grown In A Lysimeter Under Field Conditions, Hali̇l Kirnak, Ted Henry Short

Turkish Journal of Agriculture and Forestry

A modified combination model that used ambient temperature,relative humidity,solar radiation,air velocity and leaf area index (LAI) as inputs was developed for nursery plants, and its prediction was compared to the measured ET of the plant. A nursery plant of red maple (Acer rubrum) grown in a lysimeter under field conditions was used to test it. This modified combination model was shown to accurately estimate the evapotranspiration (ET) of a potted red maple (R^2=0.79). The most significant driving parameters for ET were solar radiation level and vapor pressure deficit (VPD). An exponential relationship between stomatal resistance and solar radiation for red …