- Türk Tarım ve Doğa Bilimleri Dergisi
- Vol: 5 Issue: 1
- Estimation of Reference Evapotranspiration inside Greenhouses in Arid Condition
Estimation of Reference Evapotranspiration inside Greenhouses in Arid Condition
Authors : Abbas E.rahma, Abdalla N.o. Kheiry, Mysara Ahmed Mohamed, Rihab Hassan
Pages : 44-47
View : 7 | Download : 4
Publication Date : 2018-01-19
Article Type : Research
Abstract :Because of the large area utilized by a class A pan, alternative methods have been used to estimate reference evapotranspiration (Et o ) inside greenhouses. The objective of this work was to compare ET o estimated by different methods inside and outside a greenhouse. A class A pan (CAP i ), lyismeter (L i ) and piche tube (PT i ) were installed inside a greenhouse, and another class A pan (CAP o ) was installed outside. ET o estimates, obtained by CAP i , PT i , and L i were 81%, 56% and 86%of those estimated by CAP o , respectively. A simple linear regression showed positive coefficients (R = (0.96) for the L i and the CAP i ,R = (0.95) for the PT i and the CAP i , R = (0.88) for the CAP i and the CAP o , R = (0.96) for the L i and the CAP o , and R = (0.82) for the PT i and the CAP o ). ET o needs to be estimated inside greenhouses and it is possible to use lyismeter or piche tube to estimate the ET o inside the greenhouse. Equipment replacement would increase the available space inside the greenhouse.Keywords : Class A pan, lyismeter, piche tube, evapotranspiration, greenhouse