Although yield output of maize (Zea mays L. ) has improved markedly over the last century. procedures for improving the grain-filling process remain elusive. Our aim in this study was to relate grain-filling variation in maize (including kernels in apical and middle positions in the ears) to plant density and nitrogen (N) application rate using a crossed experimental design. https://www.roamingfreesims.com/product-category/t8/