In a global analysis researcher found that as maize yield breakthrough from 10 to 250 Mg per hectare a large but not excessive maximum LAI 674 at silking was needed for dense planting按照crop science期刊的

In a global analysis, researchers found that for dense planting, a significant increase in maize yield from 1.0 to 25.0 Mg per hectare required a relatively high maximum leaf area index (LAI) of 6.74 at the silking stage. However, it is important to note that this LAI should not exceed excessively high levels.