Abstract:
In order to determine the best sowing time of silage corn and promote the application and popularization of silage corn, the biological yield, dry matter yield and straw quality characters of three different types of silage corn hybrids in four sowing periods were carried out.The results showed that, the biological yield, dry matter yield, whole plant crude starch content, neutral detergent fiber content, in vitro 48 h dry matter digestibility, in vitro 48 h NDF digestibility, total digestible nutrients and milk yield of dry matter of late sowing silage corn were significantly lower than those of early sowing and normal sowing.Proper early sowing of silage corn can obtain higher yield and better straw nutritional quality.