z 



u 

 oc 



a. 



72 

 68 

 64 



60 



73 



69 



65 



61 

 57 



53 



70 

 66 

 62 

 58 1- 

 5f 



7e 



68 

 64 

 60 

 56 



Dry /Matter 



NITRO&EN PER ACRE 

 - 50 lb. 



Protein 



ENERS.Y 



Total Di&estible Nutrients 



June 1 



June 10 



June zo 



Figure 1. 

 Effect of Nitrogen Fertilization and Stage of Maturity on Digestibilities. 



14 



