Hydrophytometeorological indexes of Virginia type tobacco

• Published in: Journal of agricultural sciences (Belgrade, Serbia) Vol. 53; no. 2; pp. 91 - 97
• Main Authors: Aksic, M, Deletic, N, Gudzic, N, Gudzic, S, Stojkovic, S., Faculty of Agriculture, Zubin Potok (Serbia)
• Format: Journal Article
• Language: English
• Published: University of Belgrade - Faculty of Agriculture, Belgrade 2008
• Subjects: CALENDARIO DE LOS RIEGOS; CALENDRIER DES IRRIGATIONS; CONDICIONES ATMOSFERICAS; CONDITIONS METEOROLOGIQUES; EVAPOTRANSPIRACION; EVAPOTRANSPIRATION; http://www.fao.org/aos/agrovoc#c_2741; http://www.fao.org/aos/agrovoc#c_29565; http://www.fao.org/aos/agrovoc#c_3954; http://www.fao.org/aos/agrovoc#c_3956; http://www.fao.org/aos/agrovoc#c_5177; hydrophytometeorological indexes; IRRIGATION; IRRIGATION SCHEDULING; METEOROLOGICAL FACTORS; NICOTIANA TABACUM; RIEGO; tobacco
• DOI: 10.2298/JAS0802091A
• ISSN: 1450-8109

The field trial of Virginia type tobacco (Hevesi-9) was set in irrigation conditions, in the vicinity of Brzi Brod village, Nisava River's valley, on the alluvium soil type. Water consumption for evapotranspiration, at the irrigated variant and the control one, was calculated for each month and the whole vegetation period, by making the balance between water consumption from the soil layer to 2m under the ground, total precipitation amount in the vegetation and water added by irrigation. Hydro-phyto-meteorological indexes of Virginia type tobacco were calculated in regard to air temperature, relative air humidity, air humidity deficiency, sunshine duration and global radiation. Among the six meteorological elements (the above mentioned five and wind speed) analyzed in the studied period, the highest level of correlation with tobacco ETP was shown by air temperature (r=0.88), so the use of hydro-phytotermic index could be recommended for calculation of potential evapotranspiration in irrigation practice. Eksperimentalna istrazivanja poljskim ogledom, u uslovima navodnjavanja duvana tipa Virdzinija (Hevesi-9), obavljena su u ataru sela Brzi Brod, u dolini reke Nisave, na aluvijalnom zemljistu. Utrosak vode na evapotranspiraciju, u kombinacijama navodnjavanja i kontroli bez navodnjavanja, utvrdjivan je za mesece i vegetacioni period u celini, bilansiranjem potrosnje vode od rezervi iz sloja zemljista do 2 m dubine, padavina u periodu vegetacije i norme navodnjavanja. Utvrdjeni su hidrofitometeoroloski indeksi za duvan tipa Virdzinija u odnosu na temperaturu vazduha, deficit zasicenosti vazduha, relativnu vlaznost vazduha, duzinu insolacije i globalno zracenje. Analizom meteoroloskih elemenata za istrazivani period konstatovan je najvisi stepen korelacije ETP duvana sa temperaturom (r=0,88), stoga se u praksi navodnjavanja preporucuje koriscenje hidrofitotermickog indeksa za obracun potencijalne evapotranspiracije.