Contrast Test for Maize Different Planting Patterns under the Mechanize Harvest

Zhengdan958 was selected as tested varieties,and two row spacing 55 cm,65 cm and two different kinds of fertilizer application were used in this study.The crop development and yield parameters were compared to evaluate the yield difference as affected by rowspacing and fertilizer application under the mechanize harvest.The results were as follows: 55cmand 65 cmrowspacing had little effect on plant height,stalk diameter,ear height,leaf area index(LAI) and plant dry weight,thus grain yield was not affected by row spacing.Fertilizer application played a significant role in maize early growth,and lateral fertilizer application was superior to positive application.Compared with positive fertilizer application,plant height,leaf area index,plant dry weight and root number under lateral fertilizer treatment has been significant improved fromcorn stage to jointing stage.However,there was not significant difference in maize yield and the yield components between two fertilizer applications.Therefore,it was concluded that harvest machine with uniform row spacing could be applied in order to reduce the cost for machine production and realize maize production mechanization in the future.