Effects of Planting Patterns on Dry Matter Accumulation from Seeding Stage to Grain Filling Stage and Establishment of Its Simulated Model of Summer Maize

Using maize Ludan 981 as the material,the effects of different planting patterns on the dry matter accumulation from seedling stage to grain filling stage were studied.The mathematical equations of dry matter accumulation of whole plant and each organ under field condition were established and tested.The results showed that there were significant differences in the effects of planting patterns on the dry matter accumulation.The dry matter accumulation of the pattern of staggered double rows was more at the same growth period.The equation parameters of whole plant,root,stem,leaves,and sheath had certain correlation.The mathematical models of dry matter accumulation of different organs under different planting patterns were different.