ABSTRACT
How densely can a crop be planted without adversely affecting the yield per unit of land? Agronomists have asked and experimentally answered this question for a variety of crops. As long as moisture or a critical nutrient is not limiting, a farmer can plant at a known ideal density and expect the maximum possible yield for a particular crop or variety. Beyond that density, plant-plant interference begins to become more signi- cant, and overall yield declines.
