The effect of nitrogen fertilization and date of cutting on the yiekl of 

 digestilile nutrients of hroniegrass liay per acre is shown in Tahle 3. 

 l^iekls of digestible protein and digestible energy per acre were liigher 

 in the early-cut hays when the comparison is made on the total yield, ex- 

 cept in the case of digestible energy in the 1959-1960 hays. The reason for 

 this is obviously the sevei-e drought experienced during the growing sea- 

 son in 1959 that reduced the yield considerably. 



Table 1. Effect of Nilrogoii Fertilization and Stage of Maturity 

 on the Chemical (lonijiosition of the IJroniegrass Hays''' 



Stage of Maturity 



and Nitrogen 



Rate Per Acre 



Ash 



Protein 



Ether 

 Extract 



Crude 

 Fiber 



Nitrogen- 

 Free 

 Extract 



50 lb. nitrogen/acre 

 Stage of maturity No 

 Stage of maturity No. 2 

 Stage of maturity No 



100 lb. nitrogen/acre 

 Stage of maturity No. 1 

 Stage of maturity No 

 Stage of maturity No 



200 lb. nitrogen/acre 

 Stage of maturity No 

 Stage of maturity No 

 Stage of maturity No 



400 lb. nitrogen/acre 

 Stage of maturity No. 1 



Percent Percent 



7.02 



Percent Percent 



21.12 



3.37 



30.25 



Percent 



37.51 



* Percentages are expressed on dry basis. 



Table 2. Effect of Nitrogen Fertilization and Stage of Maturity 

 on the Digestibilities and Total Digestible Nutrients 



Stage of Maturity 



and Nitrogen 



Rate Per Acre 



Dry 

 Matter 



Protein 



Energy 



Total 

 Digestible 

 Nutrients 



50 lb. nitrogen/acre 



Stage of maturity No. 1 



Stage of maturity No. 2 



Stage of maturity No. 3 



100 lb. nitrogen/acre 



Stage of maturity No. 1 



Stage of maturity No. 2 



Stage of maturity No. 3 



200 11). nitrogen/acre 



Stage of maturity No. 1 



Stage of maturity No. 2 



Stage of maturity No. 3 



400 lb. nitrogen/acre 



Stage of maturity No. 1 



Percent 



70.73 

 66.34 

 60.61 



72.60 

 68.23 

 64.63 



70.34 

 64.98 

 59.80 



71.67 



Percent 



66.99 

 58.81 

 53.39 



69.05 

 61.93 

 55.55 



73.67 

 68.91 

 60.81 



76.78 



Percent 



65.98 

 61.45 

 56.20 



69.55 

 64.04 

 60.30 



65.40 

 60.75 

 54.74 



68.83 



Percent 



66.18 

 60.84 

 57.30 



69.58 

 65.84 

 62.60 



67.42 

 61.75 

 56.48 



69.24 



16 



