Marius BĂRDA޹, Alina ȘIMON2, Florin RUSSU³, Felicia CHEȚAN⁴, Ovidiu Adrian CECLAN⁴
AGRICULTURAL RESEARCH-DEVELOPMENT STATION TURDA, 27 AGRICULTURII STREET, TURDA, 401100, ROMÂNIA1,2,3,4
Corresponding author e‑mail: maralys84 @ yahoo.com
Abstract: The research where executed in 2021, at the Turda Agricultural Development Research Station, using the Vangelis sugar beet cultivar and followed the influence of Terracalco 95 soil amendments on physiological parameters and production at different stages of crop development. The granular soil amendment was applied in two doses of 500 and 1000 kg/ha-1, during the vegetation period (beginning of root formation, 75 days after emergence, 105 days after emergence and 135 days after emergence), quantifying certain physiological parameters. Physiological parameters were monitored with the CIRAS‑3 foliar gas analyzer, simultaneously determining: reference carbon dioxide (CO2r- μmolm‑s-1), assimilation (A- μmol m-2s-1), transpiration rate (E- mmolm-2s-1), leaf water deficit (VPD- kPa) and leaf temperature (Tfr. oC). By applying the granulated soil amendment, the absorption of nutrients is maximized, in most cases stimulating the analyzed physiological parameters, obtaining in the variant that applied 1000 kg/ha-1an increase in production of over 950 kg/ha-1.
Key words: soil amendment, assimilation, sugar beet, yield
Clasificare JEL: Q 01, Q 15, Q 16
Articles 2022Section 1 ENG - 2022