Abstract: At the same time of implementing the genetic improvement of maize, using the human cultivating method, make the growing factor of maize better, accomplish enough mass plants, stronger individual plant and photosynthetic products is much——which is the key of yield potential developing of maize successively. Take the leaf straight-up type maize hybrids as the experimental material, the yield of hybrids under high density different plant-row distance conducted has been studied in this paper. The aim ...