The influence of fertilization and mowing height on King grass yield and quality

he yield of oneyear King grass(Pennisetum purpureumP.typhoideum) showed increasing trend with the increase of mowing height; Fresh and dry yield were the highest at 220 cm mowing height, and fertilizer effect was significant. The ratio of stem and leaf showed significantly linear correlation with mowing height and little effect from fertilizer. The content of CP, EE and Ash was declining with the increasing mowing height, and the content of CP is significantly negative correlated with mowing height. The content of NDF, ADF, ADL and Ca showed increasing trend with the increasing mowing height. Evaluated from yield, nutrition content and digestibility, fertilized oneyear King grass had the highest utilization value at 100 cm mowing height.