The study looked at how different spacing between maize plants affects their growth and yield in Kombolcha, Ethiopia. They tested different distances between rows and within rows to see which combination gave the best results. They found that closer spacing between plants led to higher grain yield and above-ground biomass. Specifically, a spacing of 65 x 25 cm resulted in the highest grain yield. This means that planting maize plants closer together can help increase the amount of maize produced in the area.