Sulfur and nitrogen content in wheat after long-term application of NPK fertilizers
1995
Kastori, R. | Jocic, B. (Faculty of Agriculture, Novi Sad (Yugoslavia). Institute of Field and Vegetable Crops)
The effect of various doses and ratios of NPK on sulfur and nitrogen content in various parts of winter wheat was studied in a stationary field experiment 25 years after its establishing. Grain yield and the content of sulfur and nitrogen were lowest in the variants with no nitrogen fertilizer applied. The application of potassium and phosphorus had no significant effect on the content of sulfur and nitrogen in wheat, while the effect of these fertilizers on grain yield was lower than the effect of nitrogen fertilizer. High positive correlation was found between nitrogen and sulfur content in all studied parts of wheat. The obtained results indicate that long-term application of NPK fertilizers on a chernozem soil type not only affects the yield, but also leads to interaction between nutritive elements, while their content may be significantly altered in plants.
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