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High Altitude Meadows in Colorado: III. The Effect of Nitrogen Fertilization on Crude Protein Production 1
Author(s) -
Willhite Forrest M.,
Rouse Hayden K.,
Miller David E.
Publication year - 1955
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1955.00021962004700030002x
Subject(s) - miller , irrigation , mathematics , agronomy , biology , ecology
ALARGE proportion of hay from high altitude meadows is produced -without nitrogen fertilization and harvested at late stages of maturity. As a result, the hay may contain low percentages of crude protein. The production of beef, especially from the standpoint of a cow-calf set-up, which is common in the high altitude meadow areas of Colorado, is closely related to crude protein production. In these areas, where winter feeding is essential for up to 180 days, it is usually necessary to feed protein supplement with the low protein hay in order to maintain a good breeding herd and have a satisfactory calf crop,' Many ranchers supplement the