Full TGIF Record # 29298
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Web URL(s):https://listings.lib.msu.edu/iowat/1991.pdf#page=39
    Last checked: 01/10/2017
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i
Report
Author(s):Roe, R. G.; Christians, N. E.
Author Affiliation:Graduate Student and Research Assistant, Department of Horticulture; Professor, Turfgrass Science, Research and Teaching, Department of Horticulture, University of Iowa
Title:1990 sod rooting trial
Source:1991 Iowa Turfgrass Research Report. July 1991, p. 34-36.
Publishing Information:Ames, Iowa: Iowa State University
Keywords:TIC Keywords: Sod; Rooting; Pesticides
Abstract/Contents:"The purpose of this study was to observe the effects of selected pesticides on establishment and rooting of sod. The test was conducted on a Nicollet (fine-loamy, mixed mesic, Aquic Hapludall) soil with a pH of 6.9 and 2.3% organic matter. Individual treatment cells measured 5 ft by 5 ft and were randomized in a complete block design with three replications. Water was applied as needed. Treatments were applied to the sod on September 19, 1990, with a backpack carbon-dioxide sprayer for the liquid materials, and a shaker box for the granular materials (Table 15). The Kentucky bluegrass turf was cut at a 3/4-in depth and laid in the standard fashion. Sod pieces were transplanted into wooden frames, 3 frames per plot. The frames had 18-mesh fiberglass screen bottoms and were constructed of 1 x 2 in pine boards with inside dimensions of 12 x 12 in. Screw hooks were placed at each of the four corners for use as the point of attachment for the hydraulic lift apparatus. Rooting was measured with a technique modified from King (King & Beard, 1969). The frames were lifted vertically with a hydraulic pump apparatus. Woven steel cords were attached to each of the four-hook screws on the frame and drawn to an apex over the center of the frame. The lifting apparatus was raised by mounting it on a wooden crate 1 ft above the level of the turf, centered carefully over the frame to assure that the lifting force was vertical. The force at the point of root breakage from the soil was measured by use of a hydraulic pressure gauge. Rooting measurements were used as an indication of sod establishment. The frames were lifted 20 and 30 days following treatment. Visual quality ratings were recorded at 20 and 30 days. Quality was rated on a scale of 1 to 9, 9 = best, 5 = acceptable, and 1 = dead turf. An analysis of variance was performed on all data. There were no significant differences in sod pulling pressure at either the 20 or 30 day testing time (Table 16). By the 20th day following treatment, the fungicide Banner 1.1E at the 2 oz/1000 ft2 single application rate showed the greatest numerical pulling pressure. All other treatments reduced root development at 20 days compared to Banner 1.1E. Super Trimec at 3 pt/a and Banner 1.1E at the 2 oz/1000 ft2 with a repeat application at two weeks showed the greatest reduction. By the 30th day, the grass on plots treated with Banner 1.1E at the 2 oz/1000 ft2 with a repeat treatment and Dursban 4E at 1 lb ai/a had numerically greater pulling pressure than the other treatments. Turflon D and Turflon II Amine showed the greatest reduction in rooting. No noticeable differences in turf quality were visible after treatment."
Language:English
References:1
Note:Entire test appears as abstract
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Roe, R. G., and N. E. Christians. 1991. 1990 sod rooting trial. Iowa Turfgrass Res. Rep. p. 34-36.
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https://listings.lib.msu.edu/iowat/1991.pdf#page=39
    Last checked: 01/10/2017
    Requires: PDF Reader
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MSU catalog number: SB 433 .A1 I55
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