Soil type. . . . . . . . Brooksville silty clay
Soil pH. . . . . . . . . 7.0
Soil fertility . . . . . P--high, K--medium
Fertilizer added . . . . Preplant--13-13-13 @ 300 lb/a
Sidedress--Nitrogen @ 80 lb/a on 5/17/94
Herbicide application. . Preemergence--Atrazine @ 2 qt/a plus
Lasso @ 3 qt/a
Planting date. . April 22
Harvest date . . September 12
Adequate soil moisture with a well-prepared seedbed resulted in an excellent stand of corn. Weed control was good until late in the season when a few morningglory vines emerged. An unusual amount of rain was received during the months of June and July, as the rainfall summary indicates.
Inches
March . . . . . 6.84
April . . . . . 4.22
May . . . . . 2.06
June . . . . . 8.69
July . . . . . 5.28
August. . . . . 1.53
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Total . . . . . 28.62
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Yield 2 yr Root Stalk Ear Harvested
Hybrid 1994 avg. Lodging Lodging Ht. Stand
Number Brand ---(bu/acre)--- (%) (%) (in) Moisture (x1000)
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3115 Southland 160.9 -- 1 1 47 19.4 22.0
TV 2543 Terral 158.3 101.7 0 0 44 16.9 27.0
ORO 188 Mycogen 150.0 107.1 0 1 45 19.6 23.5
TR 1185 Terra 147.0 -- 0 1 44 22.5 25.5
N 7707 Northrup King 146.9 104.3 0 0 39 17.9 28.5
TR 1167 Terra 146.8 -- 0 0 44 18.4 26.5
X1183C Pioneer 145.5 -- 0 0 48 19.1 25.0
DK 683 Dekalb 144.1 -- 0 0 43 16.8 27.5
HS 9773 HyPerformer 142.2 99.4 0 0 46 20.3 21.5
5111 Southland 142.0 -- 0 0 44 16.8 25.0
5510 DynaGrow 141.0 101.6 0 0 41 20.8 26.5
RX 801 Asgrow 139.7 -- 0 0 42 17.4 24.0
ICI 8281 ICI 139.0 -- 0 0 42 18.0 26.0
8695 Deltapine 139.0 100.6 0 0 48 20.3 28.0
4581 Deltapine 137.3 95.4 0 0 45 18.5 26.5
RX 899 Asgrow 135.4 88.6 0 0 42 18.9 24.5
4653 Deltapine 135.0 -- 0 0 43 20.2 26.5
888 AgraTech 135.0 99.8 0 0 43 19.1 23.0
3245 Pioneer 134.4 90.6 0 0 35 21.6 23.0
4682 Deltapine 133.9 94.9 0 0 45 19.7 26.5
TVX 2643 Terral 133.4 -- 0 0 44 17.1 28.0
7997 Cargill 132.9 -- 0 0 37 17.1 25.0
64W Zimmerman 132.7 -- 0 0 47 17.3 20.5
X830 Southland 132.0 -- 0 1 47 19.1 23.0
8936 Cargill 131.9 -- 0 0 41 20.4 25.5
N 8020 Northrup King 131.1 -- 0 0 42 17.4 25.0
16W Zimmerman 130.5 -- 0 0 44 21.9 21.0
N 7989 Northrup King 130.4 86.4 0 0 44 21.6 25.0
8327 Cargill 129.2 -- 0 0 45 20.0 26.0
RX 897 Asgrow 128.0 83.9 0 0 44 17.4 22.5
ICI 8220 ICI 127.0 -- 0 0 42 19.2 23.0
DK 649 Dekalb 126.9 95.4 0 0 39 20.1 25.0
810 AgraTech 126.5 -- 0 0 42 20.0 22.0
TR E1168 Terra 124.7 92.1 0 0 41 18.8 27.0
RX 907 Asgrow 124.1 -- 0 0 41 18.7 23.0
HS 9843 HyPerformer 123.0 81.5 0 0 41 19.2 24.0
3394 Pioneer 123.0 94.4 0 0 42 17.6 24.5
RX 919 Asgrow 113.3 -- 0 0 46 21.7 23.5
N 8206 ICI 112.0 -- 0 0 38 19.0 24.5
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Overall Mean 135.0 95.1 Planted April 22
LSD @ .10 14.6 9.4 Harvested September 12
Error Degrees of Freedom 114 96
CV % . . . . . . . . 9.2 11.9
R squared % . . . . 49 95
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Yield 2 yr Root Stalk Ear Harvested
Hybrid 1994 avg. Lodging Lodging Ht. Stand
Number Brand ---(bu/acre)--- (%) (%) (in) Moisture (x1000)
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3146 Pioneer 146.1 93.4 0 0 43 21.1 23.5
DK 714 Dekalb 143.1 -- 0 0 45 19.9 27.5
DK 743 Dekalb 142.8 110.4 0 0 42 19.5 25.5
3163 Pioneer 141.6 90.8 0 0 39 19.3 22.5
N 8727 Northrup King 140.1 99.3 0 0 40 19.5 25.5
X1183F Pioneer 138.7 -- 0 1 44 17.7 22.5
X810 Southland 137.5 100.8 0 0 53 19.9 23.0
TV 2930 Terral 136.3 -- 0 0 46 23.3 24.0
N 8656 Northrup King 136.0 -- 0 0 45 21.2 28.5
HB 847002 HyPerformer 134.1 -- 0 0 43 20.3 23.0
HY 9899V HyPerformer 133.9 -- 2 0 48 24.1 22.5
3156 Pioneer 133.5 -- 0 0 46 19.5 23.5
TR 702E Terra 133.4 90.8 0 0 43 19.6 25.5
HY 9919 HyPerformer 133.0 -- 0 0 39 21.1 23.0
N 8811 Northrup King 129.8 91.9 0 0 38 19.5 25.0
3167 Pioneer 128.8 99.3 0 0 43 20.4 24.5
XP 9380 Asgrow 127.1 -- 0 0 44 21.1 21.0
3085 Pioneer 126.4 85.2 0 0 47 19.1 21.5
3154 Pioneer 125.9 95.4 0 0 45 18.6 20.5
967 AgraTech 124.1 -- 0 0 44 19.9 22.0
3165 Pioneer 122.2 96.7 0 0 41 20.4 24.0
HS 9944 HyPerformer 121.7 80.3 0 0 43 19.7 21.0
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Overall Mean 133.5 93.9 Planted April 22
LSD @ .10 15.0 11.4 Harvested September 12
Error Degrees of Freedom 63 60
CV % . . . . . . . . 9.5 14.5
R squared % . . . . 30 93