Three sowing-density treatments and trait investigation were implemented in Maize Tainung No 7 by environmentally friendly farming. The results of three sowing-density treatments showed no difference observed in seed yield and planting density. However, the yield shows a positive trend with planting density.

▲Fig. 1. The results of three sowing-density treatments showed no significant difference in seed yield and the highest yield was obtained by relatively dense spacing 80x15 cm.