from June 1 into the summer, i*^ Comparison of these dates revealed a 

 large degree of similiarity in yield behavior between areas as to calendar 

 date (Figure 4). A second degree equation was fitted to these yield 



4 ^ 



LU 



U 

 < 



to 



Z 



O 







± 



Y 1.1664 i 0.051 78X - 0.0002492X' 



8189 

 .6265 



y.x 



± 



± 



± 



20 40 60 80 



DATE OF CUT IN NUMBER OF DAYS AFTER MAY 31 



Figure 4. Relation Between Date of Cut and Yield Per Acre 



of First Crop Forage 



If Kennedy, W. K., Nitrogen Fertilization of Meadoivs and Pastures, Cornell 

 Agr. Expt. Sta. Bui. 935, 1958. 



Colovos, et. al.. op. cit. 



Rakes, et. al., The Feeding Value for Milk Production of Hays Cut at Various 

 Dates. W. Va. Agr. Expt. Sta. Current Rpt. 35, 1962. 



Rask, et. al.. Early Cut Hay and Silage: Cost and Returns. Cornell Ext. Bui. 

 1059, 1961. 



Regional Forage Crops, Northeast Regional Project NE-21, University of Rhode 

 Island, Agr. Expt. Sta. Bui. 356, 1960. 



Ross, V. E. and Fellows, I. F. An Economic Evaluation of the Barn-Finishing 

 Method of Harvesting Hay. Storrs Agr. Expt. Sta. Bui. 277, 1951. 



Shepherd, J. B., et. al., "Conservation of Nutrients and Feeding Value of Wilted 

 Silage, Barn-Cured Hay and a Poor Quality Field Cured Hay," Journal of Dairy Sci- 

 ence, 31:688-689, 1948. 



Shepherd, J. B., Experiments in Harvesting and Preserving Alfalfa for Dairy 

 Cattle Feed. U. S. Dept. Agr., Tech. Bui. 1079, 1954. 



Slack, S. T., et. al. Effect of Curing Methods and Stage of Maturity upon Feeding 

 Value of Roughages. Cornell Agr. Expt. Sta. Bui. 957, 1960. 



Slack, S. T., et. al.. Effects of Chopping on Feeding Value of Hays. Cornell Agr. 

 Expt. Sta. Bui. 950. 1960. 



14 



