In a study on growing winter wheat in Shaanxi, China, researchers tested different planting dates and sowing rates to find the best ways to boost wheat yields. They discovered that adjusting when and how densely the seeds were planted affected the number of wheat stems and ultimately grain yield. Each wheat variety had its own ideal planting date and seeding density for high yields. One variety, Xinong 979, did best when planted on October 15th with a seeding rate of 4,500 thousand seedlings per hectare, yielding up to 9,200 kg per hectare. Xiaoyan 22 thrived when planted on October 19th at 2,250 thousand seedlings per hectare, yielding 8,290 kg per hectare. Shaan 558 did best when sown by the end of October with a seeding rate of 3,750 thousand seedlings per hectare, yielding 8,160 kg per hectare. Adjusting planting date and seeding density can lead to better wheat yields in the Guanzhong area.