The researchers studied how the timing of planting and the number of plants per area affected the growth and yield of a millet variety called Changnong No.35. They found that planting on May 15 with a density of 450,000 plants per hectare resulted in the highest yield. The timing of planting had a big impact on how long the plants took to grow, while the plant density didn't affect the growth period. The combination of planting date and plant density had a significant influence on the yield and characteristics of the plants.