Akademik Veri Yönetim Sistemi
Fresenius Environmental Bulletin, cilt.29, sa.9, ss.7854-7866, 2020 (SCI-Expanded)
The study was carried out in the Amik Plain (Hatay province, Turkey) in 2015 and 2016 to determine the effects of foliar sulphur applications on the yield, leaf area index, leaf moisture content and dry matter parameters of cotton plants. In the study, the growth of the cotton plant was divided into three different stages: a) vegetative growth period (V G), b) flowering and boll development period (F B) and c) boll opening period (B O). While at some stages of the growth, a water equivalent to the field capacity was applied (T), at some stages, irrigation water was not supplied (O). During each developmental period, foliar elemental sulphur was applied to the cotton plants at different doses (S 0 : 0 ml da- 1, S 1 : 150 ml da- 1, S2: 250 ml da- 1, S3: 350 ml da- 1). The amount of irrigation water ranged from 91 to 1136 mm and from 149 to 1078 mm in 2015 and 2016, respectively. Evapotranspiration ranged from 311 to 1046 mm and from 303 to 1182 mm in 2015 and 2016. The yield value (480.12 kg da- 1 in 2015 and 499.8 kg da- 1 in 2016) of the treatment of full irrigation at every period (T T T) was determined to be 294.58, and 351.2 kg da- 1 higher than the non-irrigated treatment, with the yield value of 185.54 and 148.6 kg da- 1, respectively. Considering the dry matter amounts in the harvest period, the highest values were obtained in T T T (in 2015 and 2016) from the S3 dose. In the comparison of the aforementioned treatments to the S0 dose, where the lowest amount of dry matter was observed, it was determined that the S3 dose led to an increase of respectively 36.13%, and 67.33% in dry matter. In both years, the lowest yield value for OOO was obtained from the non-sulphur treatment (S 0 ) . The highest yield was obtained from the S3 and S2 doses, in 2015 and 2016, respectively. The yield increased by 59.58% and 27.26% when the values were compared to the dose of S0.