Synopsis
Yield was associated directly with cutting interval, regrowth being stimulated by frequent cutting for only a short period. Water consumed, per unit of forage produced, decreased as length of cutting interval increased. Sudangrass used moisture from the upper foot of soil and was more efficient in water use than alfalfa during June, July, and August. Consumptive use of water was closely associated with rainfall during the period of active plant growth.
I would like to express my sincere appreciation to all the persons who helped me complete the requirements for my Master of Science degree, especially my advisor, Dr. Robert E. Dennis, whose unselfish assistance guided my path of study, I am grateful to other members of my committee, Drs. William R. Kneebone, Dwayne R. Buxton, and Arthur H, Freytag, whose suggestions and assistance proved invaluable to the conduct and preparation of this thesis, I am also grateful to Sherill Thomson, David Parsons, and John Nelson for their assistance throughout the course of this study, I would like to thank all the professors and administrators in the College of Agriculture not mentioned who shared their time and knowledge with me during my studies at The University of Arizona. I would also like to thank the members of the Arizona Sugarbeet Growers Associa tion, Amstar-Spreckels Company of Chandler, Arizona, Great Western Sugar Company of Longmont, Colorado, and Air Products and Chemicals Incorporated of Allentown, Pennsylvania, who provided the cooperation and monetary assistance which made this study possible, ' I am grateful to my roommate, Gregory Brisbane, for his generosity.
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