Effect of determining factors on maize yield with special regards to plant density

The response of hybrids to increasing plant density is largely determined by the genetics and vegetation period of the hybrid, the growing conditions, year, water and nutrient supply. Maize requires the largest amount of water between 21 July and 10 August, higher plant numbers increase the water requirement of maize. In addition to determining the optimum plant density, the interval of optimum plant numbers is also important, which describes the response of the hybrid to increasing plant density. There are hybrids that tolerate or are sensitive to higher plant density. A higher than optimum plant density decreases the protein and oil contents of grains, while it increases the starch content.