• Irrigation Termination of Cotton with Boll Weevil Infestations

      Farr, Charles (College of Agriculture, University of Arizona (Tucson, AZ), 1988-03)
      Two irrigation termination trials at Buckeye and two at Laveen determined that irrigation the last four days of August produced as much lint as irrigation seven to ten days later. Pima S-6 and a late planting of DP 90 after oats responded to water in the same way as the early April plantings of Deltapine 77.
    • Lint Yield of Planting Pima S-6 at Three Dates

      Farr, Charles (College of Agriculture, University of Arizona (Tucson, AZ), 1988-03)
      Planting Pima S-6 at 12-day intervals starting April 2 produced more than 70 pounds of lint loss for each delay in planting.
    • Nematocide Use for Control of Rootknot Nematodes

      Farr, Charles (College of Agriculture, University of Arizona (Tucson, AZ), 1988-03)
      Injection of Telone II in sandy loams containing more than 60 percent sand increased Pima S-6 yield 493 pounds of lint but failed to give economic response with DP 77 in second year cotton. Treatment with Vapam at two rates at the same locations did not increase yield significantly in 1987.
    • Progress of Cotton Harvesting in 1987

      Farr, Charles (College of Agriculture, University of Arizona (Tucson, AZ), 1988-03)
      Cotton growers began cotton harvest earlier in 1987 than during the previous three years, but they fell behind the other years by December first. Rainfall in late October, particularly November 2, slowed harvest and reduced quality of cotton dramatically in some operations.
    • The Use of Drip Irrigation in Maricopa County

      Farr, Charles (College of Agriculture, University of Arizona (Tucson, AZ), 1988-03)
      Drip irrigation of cotton in Maricopa County decreased from 13,335 acres in 1984 to approximately 600 acres in 1987 at five locations. The most common reason was that drip was not cost effective.