Physical and Cultural Weed Control Working Group of - European ...

9 th EWRS Workshop on Physical and Cultural Weed Control 72
Samsun, Turkey, 28 – 30 March 2011
Table 1. Weather data at the time of flaming treatments for greenhouse experiment at Lincoln, NE
in April and September of 2009.
Application date
April 29
Application time
(hours after
sunrise)
Sunrise/
sunset a
Temperature Relative humidity
H C %
0 6:24 A.M./
20 46
4 8:18 P.M.
34 20
8 27 24
12
26 37
September 26
0 7:15 A.M./
10 22
4 7:15 P.M.
32 19
8 30 19
12
24 23
a
Time from Custom Sunrise Sunset Calendar for Lincoln/Omaha, NE,
http://www.sunrisesunset.com/custom_srss_calendar.asp
Table 2. Leaf relative water content of corn, green foxtail, soybean, and velvetleaf as influenced by
various times of day. The values are estimated using Equation 1. a
Hours after
Corn Green foxtail Soybean Velvetleaf
sunrise
0 0.98 0.89 0.82 0.63
4 0.90 0.84 0.85 0.67
8 0.90 0.79 0.63 0.60
12 0.95 0.90 0.80 0.66
SE 0.01 0.03 0.04 0.08
a Abbreviation: SE, standard error.