References Cited 



1. Browning, C. B., Lusk, J. W., and Miles. J. T. High Fertility Improves Hay 

 Quality. Miss. Agr. Expt. Sta. Farm Research, Vol. 23, No. 6. 1960. 



2. Chalupa, W. v., Cason, J. L., and Baumcardt, B. R. Nutritive Value of Reed 

 Canarvgrass When Grown With Various Nitrogen Levels. J. Dairy Sci. 44: 

 874-878. 1961. 



3. CoLOvos, N. F., Keener, H. A., Prescott, J. R., and Teeri, A. E. The Nutritive 

 Value of Timothy Hay at Different Stages of Maturity as Compared W ith Second 

 Cutting Clover Hay. j. Dairy Sci. 32: 659-664. 1949. 



4. Gilbert. C. S., Eppson. H. F., Bradley, W. V., and Beath, O. A. Nitrate Accumu- 

 lation in Cultivated Plants and W eeds. Wy. Agr. Expt. Sta. Bui. 277. 1946. 



5. Lloyd, L. E., Jeffers, H. R. M., Donefer, E., and Crampton, E. W. Effect of 

 Four Maturity Stages of Timothy Hay on its Chemical Composition, Nutrient Di- 

 gestibility and Nutritive Value Index. J. Anim. Sci. 20: 468-473. 1961. 



6. Nellin. T. N., Poulton, B. R., and Anderson, M. J. A Study of the Effects of 

 Date of Harvest on the Nutritive Value of Timothy Forage. Paper presented at 

 the annual meeting of the Eastern Division of the American Dairy Science Associ- 

 ation. University of New Hampshire, Durham, N. H. 1960. University of Maine 

 Mimeo. Aug. 1960. 



7. Poulton, B. R., Macdonald, G. J., and Vandernoot, G. W. The Effect of Nitro- 

 gen Fertilization on the Nutritive Value of Orchardgrass Hay. J. Anim. Sci. 16: 



462-466. 1957. 



8. Prince, Ford S., Blood, Paul T., and Percival, G. P. Studies of Feed Value of 

 Early Hay. N. H. Agr. Expt. Sta. Cir. 41. 1933. 



9. Prince, Ford S., Blood, Paul T., Phillips, T. G., and Percival, G. P. Fertilizer 

 Experiments on '"Run-Out" Hay Land. N. H. Agr. Expt. Sta. Bui. 271. 1933. 



10. Prince, Ford S., Phillips. T. G., Blood. P. T., and Percival, G. P. Experiments 

 with Grass Hay. N. H. Agr. Expt. Sta. Bui. 306. 1938. 



11. Ramage, Carroll H., Eby% Claude, Mather, Robert E., and Purvis, Earnest R. 

 Yield and Chemical Composition of Grasses Fertilized Heavily with Nitrogen. 

 Agron. Jour. 50: 59-62. 1958. 



12. Spahr, Sidney L., Kesler, E. M., Washko, J. B., and Bratzler, J. W. Effect of 

 Stage of Maturity at First Cutting on Yield and Nutritive Value of Forages. Depts. 

 of Dairy Science, Agronomy, and Anim. Hush, and Nutrition, Pennsylvania State 

 University, University Park. Pennsylvania State University Mimeo. Aug. 1960. 



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