Evapotranspiration and biophysical coefficients of strawberries grown under surface drip irrigation
Keywords:
Еvapotranspiration, biophysical coefficient, strawberry, irrigation depth, drip irrigationAbstract
To establish the totals and average daily evapotranspiration of strawberrys under the soil and climate conditions in the village of Chelopechene, near Sofia city, in the period 2011-2013 research was conducted with drip irrigation of plantations with variety “Polka” adopting varying irrigation schedules – from fully meeting the daily crop water requirements to reduced depths with 20% and 40%.
On average, during the research period the magnitude of the total evapotranspiration for the vegetation period of the strawberry is 213 mm, the main part being formed by the applied irrigation – 67% and the rest of the rainfall – 33%
For the needs of the practice and the design are calculated also the 10-days values of the biophysical coefficient Z and, which depend on the biological characteristics of the culture and the meteorological factors.
References
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