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Weed
Control in Corn with Nicosulfuron Tank Mixtures, Wishek, 2000.
G. Endres and J. Schneider
Weed control in corn with nicosulfuron tank mixtures, Wishek, 2000. (Endres
and Schneider) The experiment was conducted to evaluate weed control in corn
with selected nicosulfuron rates and tank mixtures. The experiment was conducted
on a medium/fine textured soil with 6.3 pH and 3.0% organic matter at the
Tri-county trial site near Wishek. The experiment was a randomized complete
block design with four replicates. 'DK493RR' field corn was planted on May 18 in
28-inch rows. Herbicide treatments were applied to the center 5 ft of 7.5 by 22
ft plots with a hand-boom plot sprayer at 10.5 gal/A at 35 psi through 8001 flat
fan nozzles. Treatments were applied on June 26 during weather conditions of 66
F, 48% RH, 40% cloudy sky, and 14 mph wind to 8- to 12-inch tall corn, 1- to
6-inch tall yellow and green foxtail, 1- to 5-inch tall redroot pigweed, and 2-
to 8-inch wide prostrate pigweed.
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July 10 |
July 25 |
| Treatment |
Rate |
Fota |
Piwe |
Fota |
Piwe |
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(oz AI/A) |
----------- (% Control) --------- |
| NICO+DICA+NIS+UAN |
0.5 + 4 + 0.25% + 2 PT |
72 |
80 |
73 |
88 |
| NICO+DICA+ATRAZINE+MSO |
0.25 + 2 + 0.38 LB + 1.5 PT |
75 |
79 |
75 |
85 |
| NICO+BAS 662+NIS+UAN |
0.5 + (2+0.8) + 0.25% + 2 PT |
75 |
88 |
77 |
95 |
| NICO+DICA+QUAD 7 |
0.25 + 1 + 1% |
71 |
79 |
74 |
87 |
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| C.V. % |
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6 |
4 |
4 |
3 |
| LSD (0.05) |
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NS |
6 |
NS |
5 |
| a NIS = Preference; MSO = Scoil. |
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| b Fota = Yellow and green foxtail. |
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| c Piwe = Redroot and prostrate
pigweed. |
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Corn injury was not detected with herbicide
treatments. Yellow foxtail was only suppressed due to growth stage when
treatments were applied. The reduced rate of nicosulfuron (Accent) performed as
well as the labeled rate in suppressing foxtail. Nicosulfuron +BAS 662
(Distinct) provided the highest pigweed control (88-95%).
Quad 7 added to the reduced rates of nicosulfuron + dicamba (Banvel)
provided similar weed control as full rates of nicosulfuron + dicamba + NIS +
UAN.
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