full report - PACE Turf

Table 2. Average firmness, volumetric water content and organic
matter content by green.
Firmness evaluated using the 2.5 kg CSIT (GMAX) on two dates, 7/9/2010
(GMAX0709) and 7/19/2010 (GMAX0719), volumetric water content (VWC) measured
using a Spectrum Technologies TDR300 with 4.7 inch probes on two dates, 7/9/2010
(VWC0709) and 7/19/2010 (VWC0719) and soil organic matter (humus) content for
composite core samples representing the top two inches of soil collected on 7/20/2010
reported as loss by ignition at 360 C (OM360, A2LA, for humus fraction) and 440 C
(OM440, A2LA, ASTM D2974-C, for humus, stems and leaves). The OM440-OM36g is
the difference between the 440 C and 360 C ignition organic matter content – an
estimate of the leaves and stems (larger organic matter particles).
Green GMAX0709 VWC00709 GMAX0719 VWC0719 OM360 OM440 OM440-OM360
1 70.8 43.2 104.2 20.6 3.96 4.94 0.98
2 71.2 44.6 101.2 21.5 4.18 4.81 0.63
3 64.1 47.7 91.6 28.6 3.76 4.55 0.79
4 67.1 46.1 103.3 17.6 4.3 4.93 0.63
5 73.3 40.6 104.3 19.4 3.49 4.57 1.08
6 67.1 40.9 102.7 15.7 4.05 4.81 0.76
7 69.9 38.1 97.8 23.1 3.81 4.35 0.54
8 77 38.3 108.1 15.9 3.45 3.91 0.46
9 74 39.7 99.4 23.5 4 4.65 0.65
10 73.9 39.2 102.7 21.2 3.83 4.43 0.6
11 72.4 37.2 95.1 28.7 3.8 4.4 0.6
12 72.4 37.2 95.3 27.3 4.51 4.7 0.19
13 69.2 38.8 91.6 26.7 3.8 4.22 0.42
14 65.2 41.3 84.4 33.4 3.81 4.26 0.45
15 67 39.5 99.1 20.5 3.68 4.34 0.66
16 72.4 35.4 93.6 23.1 3.99 4.49 0.5
17 69.4 42 84.1 31.4 3.87 4.34 0.47
18 67.4 43.5 88.1 30 4.34 4.66 0.32
19 76.2 42.2 119.1 19.6 3.19 3.84 0.65
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