An investigation on the effects of different doses of gypsum and sulphur on the yield and parameters related to yield at the berseem (Trifolium alexandrinum L.) that cultivated as winter intermediate product

In this study, application of different doses of Gypsum (CaSO4.2H2O) and Sulphur (S) on berseem that cultivated as winter intermediate product (Trifolium Alexandrinum L.) effects of yield and parameters related to yield were investigated under the ecological conditions of Cukurova / Turkey. This study was conducted in the years 2008 - 2009 growing season and the experiment was arranged in split plots design with three replications. In this study 0, 20, 40, 60 kg/da doses of Gypsum and 0, 10, 20, 30 kg/da doses of Sulphur were used.According to the results, all of the parameters were affected statistically significant by Gypsum and Sulphur applications. When Gypsum and Sulphur doses increased all of the parameters were determined to increase.The result of experiment showed that, the highest plant height was obtained as 66.18 cm in the plot J60 and 69.61 cm in the plot S30. The highest main branches number was obtained as 14.26 unit in the J60 and 15.35 unit in the S30. The highest green forage yield was obtained as 3182 kg/da in the J60 and 2971 kg/da in the S30. The highest dry plant yield was obtained as 515.1 kg/da in the J60 and 453.4 in the S30. The highest crude protein rate was obtained as % 30.14 in the J60 and % 28.56 in the S30. The highest crude protein yield was obtained as 155.8 kg/da in the J60 and 130.9 kg/da in the S30. The highest Nitrogen value of plant was obtained as % 4.8 in the J60-S30. The highest elemental Nitrogen value of plant which lifted from 1000 m2 was obtained as 24.9 kg/da in the J60 and 20.9 kg/da in the S30.