The article explores how the rate and date of sowing affect the yield of winter wheat. The researchers conducted experiments to determine the best combination of sowing rate and timing for maximizing wheat yield. They found that the timing of sowing significantly impacted the yield of winter wheat, with earlier sowing resulting in higher yields. Additionally, the researchers discovered that the sowing rate also played a crucial role in determining the final yield of winter wheat. Overall, the study highlights the importance of carefully considering both the timing and rate of sowing when aiming to achieve optimal yields in winter wheat production.