• Alfalfa Variety Trial in Cochise County, Arizona, 1996

      Clark, L. J.; Carpenter, E. W.; Ottman, Michael (College of Agriculture, University of Arizona (Tucson, AZ), 1997-10)
      Fourteen alfalfa varieties with fall dormancy ratings from 6 to 9 were tested in replicated small plot trials on the Kibler farm in Stewart District northwest of Willcox. The leading variety after two year of testing was DeKalb 189 with a dry matter yield of 8 tons per acre. Heat units with temperature thresholds of 77 °F and 40 °F are given for each cutting .
    • Alfalfa Variety Trial in Graham County, Arizona, 1996

      Clark, L. J.; Carpenter, E. W.; Cluff, R. E.; Ottman, Michael (College of Agriculture, University of Arizona (Tucson, AZ), 1997-10)
      Twenty four alfalfa varieties with Fall Dormancy ratings of 8 or 9 were tested in a replicated small plot trial on a heavy clay loam soil on the Safford Agricultural Center. This was the first year of a new study and there were some difficulties caused by irrigation management on the heavy soil. Pioneer 5888 was the highest yielding variety with a yield just over 9 tons per acre in 6 cuttings. Heat units with thresholds of 77 F and 40° F are included for each cutting in the study.
    • Barley Variety Trial on the Safford Agricultural Center, 1997

      Clark, L. J.; Carpenter, E. W.; Ottman, Michael (College of Agriculture, University of Arizona (Tucson, AZ), 1997-10)
      Sixteen varieties of barley were tested at the Safford Agricultural Center in 1997. Nebula, a new variety from Western Plant Breeders, was the highest yielding variety in the trial with a yield over 5100 pounds per acre. Nebula also had the highest bushel weight of the varieties tested.
    • Irrigation Scheduling on Barley at the Safford Ag Center, 1997

      Clark, L. J.; Carpenter, E. W.; Ottman, Michael (College of Agriculture, University of Arizona (Tucson, AZ), 1997-10)
      An irrigation study on barley was made to determine the economical consequences of irrigating the crop when an irrigation scheduling program called for an irrigation compared to waiting 3 to 6 days for a water turn, from the ditch. The plots irrigated when the soil moisture depletion level reached 40% produced the highest yield. Yields were decreased 700 and 1000 pounds respectively for waiting 3-4 days and 6-7 days, respectively. The economics of using the pump are discussed and a chart is given to help determine a break - even point.
    • Kenaf Varietal Evaluation in the High Desert of Southeastern Arizona

      Clark, L. J.; Carpenter, E. W.; Ottman, Michael (College of Agriculture, University of Arizona (Tucson, AZ), 1997-10)
      Several Kenaf varieties have been grown at the Safford Agricultural Center over a period of 5 years. Plants harvested green have produced yields in excess of 40 tons per acre. Air dried stems that would be useful for commercial products have yielded as high as 9.5 tons per acre and two varieties, Tainung 2 and Everglades 71, have averaged nearly 7 tons per acre. In addition to yields and other agronomic values of the varieties tested, an economical discussion is made on the feasibility of Kenaf production on southeastern Arizona.
    • National Dry Bean Nursery Summary, 1992-95

      Clark, L. J.; Carpenter, E. W.; Ottman, Michael (College of Agriculture, University of Arizona (Tucson, AZ), 1997-10)
      A yield summary of selected varieties from the National Dry Bean Nursery from 1992 to 1995 are contained in this paper. Average and individual yields vary from year to year depending on the planting dates and the weather of the given year. Looking at a four year average for a variety gives a better estimate of its yield potential than any single year study.