In order to select a reasonable density for corn planting in Tongzi County,four density gra-dients were set up to analyze the agronomic and yield traits of corn.The results showed that corn with a density of 4 500 plants/667m2 had the highest yield and better comprehensive traits.As the density increased,the yield of corn gradually decreased and the lodging rate of corn increased.In this experiment,corn with a density of 7 300 plants/667m2 had basic lodging,with a lodging rate of 100％and a lodging rate of 85.3％.Corn with a density of 6 300 plants/667m2 had partial lodging,with a lodging rate of 43.8％and a lodging rate of 18.3％.Corn with a density of 5 500 plants/667m2 had a lodging rate of 4％and no lodging or lodging occurred.Overall,reasonable and dense planting can ef-fectively increase corn yield.
维普
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