Journal of
Faculty of Civil Engineering

JOURNAL OF FACULTY OF CIVIL ENGINEERING
INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVILENGINEERING 25, 2014.y., pp. 619-624

	DOI: 10.14415/konferencijaGFS2014.083
	UDC: 699.83:626.81/.84
	CC-BY-SA 4.0 license
	Author : Milanović, Mladen; Gocić, Milan; Trajković, Slaviša
	Summary:
	Design of irrigation systems is not possible without a reliable calculation of evapotranspiration. In order to ensure production of high quality fruit, the latest technological solutions are applied in the field of irrigation, protection from bacteria, rodents and birds, protection from weeds, effects of hail, frost and excess rain. Today, the use of anti-hail net is considered as one of the most effective ways to protect orchards from the hail. In addition, it has the role of protecting from birds and insects, wind and the strong solar radiation. There are changes in the microclimate conditions due to the anti-hail net. The changed parameters in the orchards such as intensity of light, air temperature, relative humidity, and wind velocity depend on the characteristics of the anti-hail nets (the quality and thickness of the fiber, color, openings size). All that directly affects the evapotranspiration of orchards and should be taken into account when designing the irrigation systems. This paper presents estimation of evapotranspiration using the FAO-56 Penman-Monteith method. Based on the results, it is clear that the evapotranspiration of the orchard covered by anti-hail nets decreases compared to the orchard that is not protected by the anti-hail nets.
	Keywords:
	Design, irrigation systems, anti-hail net, evapotranspiration, FAO-56 Penman-Monteith