Grain yield and protein content in different ripening varieties of soft winter wheat using various types and doses of fertilizers




variety, productivity, weather conditions, fertilizer system, protein collection


Purpose. To study of yield formation and protein content in the grain of different ripening varieties of soft winter wheat under the condition of using various types and doses of fertilizers.

Methods. Field and laboratory (determination of protein content), calculation (collection of protein), mathematical and statistical.

Results. It was found that different fertilization systems reliably increased the grain yield of soft winter wheat. The use of N75 increased this indicator by 1.2 times and N150 by 1.4 times in the varieties studied, compared with the no-fertilizer variant. Yield with incomplete return of phosphorus-potassium fertilizer was only 2–3% lower than with complete mineral fertilizer. With the nitrogen-phosphorus and nitrogen-potassium fertilization systems, the yield was 5–7% higher than with the nitrogen system. At the same time, this indicator was 6% lower than in the full mineral fertilizer version of the trial. The use of 75 kg/ha nitrogen fertilizer per year increased the protein content to 13.5%, or by 10% compared to the control. In the double dose nitrogen fertilizer variant, the protein content increased to 14.2% or by 15%. The use of nitrogen fertilizers with phosphorus-potassium only contributed 2–4% to the increase of this indicator. Cultivation of winter wheat under the condition of application of N75 increased the collection of protein up to 724 kg/ha or by 33%, and with a double dose of nitrogen fertilizer – up to 848 kg/ha or by 55% compared to the option without fertilizer. In the N75P30K40 variant, protein yield increased by 10% compared to the nitrogen system. The application of a complete mineral fertilizer (N150P60K40) increased this indicator by 12%.

Conclusions. It was found that the use of N75P30K40 increased the grain yield of soft winter wheat by up to 5.9 t/ha, or 7%, compared to the option where only 75 kg/ha of nitrogen fertilizer was applied. Yield development in soft winter wheat varies considerably from variety to variety. For example, this indicator was 35% higher in the ‘KWS Emil’ variety than in the ‘Prino’ line. In addition, the grain yield of both varieties is reliably influenced by the weather conditions during the growing season. The protein content of soft winter wheat varies considerably depending on the variety and the weather conditions. When growing soft winter wheat varieties, the protein content can vary by 12.8–15.1%. Weather conditions during the growing season can change this indicator by 13.1–14.7%. The protein content index in the grain of the ‘Prino’ line is significantly higher than that of the ‘KWS Emil’ variety. According to the protein yield per hectare indicator, the ‘KWS Emil’ variety (896 kg/ha) has a significant advantage over the ‘Prino’ line (774 kg/ha).


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How to Cite

Silifonov Т. V. . (2023). Grain yield and protein content in different ripening varieties of soft winter wheat using various types and doses of fertilizers. Plant Varieties Studying and Protection, 19(1), 44–51.