Full TGIF Record # 30428
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Web URL(s):https://listings.lib.msu.edu/iowat/1993.pdf#page=47
    Last checked: 01/10/2017
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Publication Type:
i
Report
Author(s):Roe, R. G.; Christians, N. E.
Author Affiliation:Graduate Student and Research Associate, Horticulture Department, Professor, Turfgrass Science Research and Teaching, Horticulture Department, Iowa State University
Title:1992 sod rooting trial - I
Source:1993 Iowa Turfgrass Research Report. 1993, p. 38-42.
Publishing Information:Ames, Iowa: Iowa State University Extension
# of Pages:5
Keywords:TIC Keywords: Sod rooting; Poa pratensis; Pesticides; Sod establishment; Rooting
Cultivar Names:Ram I
Abstract/Contents:The purpose of this study was to observe the effects of selected pesticides on establishment and rooting of Kentucky bluegrass 'Ram I' sod. "The Kentucky bluegrass sod was cut at a 3/4 in depth and laid in the standard fashion on March 19 and 20, 1992. Sod pieces were transplanted into wooden frames, 6 frames per plot. The frames had 180mesh fiberglass screen bottoms and were constructed of 1 in x 2 in pine boards with inside dimensions of 12 in x 12 in. Screw hooks were placed at each of the four corners to attach the hydraulic lift apparatus. Check frames were pulled prior to treatment to ensure rooting. Pulling pressures exceeded 500 psi and the sod in the area was assumed to be fully rooted at that time. Liquid treatments were applied on May 5, 1992, with the use of a backpack carbon-dioxide sprayer equipped with 8006 nozzles in the equivalent of 3 gal. water/1000 sq ft. Granular materials were applied with a hand-held shaker. Rooting was measured with a technique modified from King (King & Beard, 1969). The frames were lifted vertically with a hydraulic pump apparatus (Fig. 1). 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 force at the point of root breakage from soil was measured by the use of a hydraulic pressure gauge. Rooting measurements were used as an indication of sod establishment. The frames were lifted on July 7 and 8 (63 days post treatment) and September 11 and 17 (126 days post treatment, pulling the frames from the non-irrigated are was delayed due to rain). An analysis of variance was performed on all data. Because of the longer rooting period in this trial, root development was greater. Sod pulling pressure was at least 200 psi greater than the same trial in 1991, and nearly 500 psi greater then in previous sod rooting studies. Pulling pressures were higher in the second year of this study due to modification of the frames. In nearly every case, pulling pressure exceeded the maximum gauge pressure of 1000 psi. There was no significant differences for irrigated and non-irrigated trials in sod pulling pressure at either the 63- or the 126-day testing time (Tables 18 and 19). No noticeable differences in turf quality were visible after treatment." Tables included describe pesticides used and rates, results of root strength test, and effects of pesticides on rooting strength. A picture is included of what the testing of root strength apparatus looks like.
Language:English
References:1
Note:Figures
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Roe, R. G., and N. E. Christians. 1993. 1992 sod rooting trial - I. Iowa Turfgrass Res. Rep. p. 38-42.
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https://listings.lib.msu.edu/iowat/1993.pdf#page=47
    Last checked: 01/10/2017
    Requires: PDF Reader
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MSU catalog number: SB 433 .A1 I55
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