Effects of Mo, Zn, Sr and Ba loads on these elements uptake and oil content and fatty acid composition of rapeseed
Kastori, R.R.(Institute of Field and Vegetable Crops, Novi Sad (Serbia and Montenegro)) | Kadar, I. | Sekulic, P.Dj. | Zeremski-Skoric, T.M.
Studied in the present paper were the long-term effects of the application of high Mo, Zn, Sr and Ba rates (0, 90, 270, and 810 kg/ha) on rapeseed oil content and oil fatty acid composition. The trace elements were applied in the spring 1991, while the rapeseed was sown in a calcareous chernozem soil in 2001. The trace elements differed significantly in their rates of accumulation in rapeseed plants. The application of the trace elements had no significant effect on the fatty acid composition of the rapeseed oil, either. The increased levels of the trace elements found in the rapeseed plants indicate that 11 years after application significant amounts of the applied elements are still present in the soil in a form available to plants. However, the rates were not high enough to affect the synthesis of oil and its fatty acid composition.
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