Fruit Institute. Evapotranspiration of Superior Red apple in Plovdiv conditions.
Fruit Institute of Plovdiv, Bulgaria, 1998.
The total average evapotranspiration of Superior Red apple in Plovdiv conditions, in Bulgaria is 492 mm, in a loam soil, maintaining a level of soil moisture above 70% of field capacity during the growing season cultivation, obtaining this level of humidity higher yields.
The average daily evapotranspiration is 1 mm / day for the month of March; 1.9 mm / day in April; 2.2 mm / day in May; 2.7 mm / day for the period from June to July; 3.2 mm / day in August; 1.9 mm / day in September and 1.3 mm / day in October. The total water demand applied is 2380 m3 and was given the crop with the use of four irrigation during the period from June to August.