Oakes
HARD RED SPRING WHEAT VARIETY TRIAL
W. Albus, L. Besemann and H. Eslinger
Table 1. Yield and
agronomic characteristics in an irrigated hard red spring wheat variety trial.
Many of the acres
historically planted to hard red spring wheat (HRSW) in Southeastern ND have
been replaced by corn and soybeans over the last 10 years. Soybeans have been the dominant crop to
replace wheat in rotations. The rapid
and near universal acceptance of Roundup ready soybean varieties has
accelerated this decline in wheat acres.
During this same time frame, a number of wet, humid cropping seasons
resulted in a significant reduction in wheat yields due to disease, especially
head scab. Whereas wheat yields in ND
seemed to have reached a plateau, corn and soybean yields were increasing. Despite this scenario, several researchers
and producers using intensive management in wheat are having different
results. In intensive management, all areas
of production from plant population, seeding depth, fungicide applications,
nitrogen rate and time of application, weed control, etc, are closely
monitored. Healthy wheat plants that
lodge less, result in higher yields and grain protein content. Current prices for wheat show a potential
for high economic returns.
The objective of
this trial was to test HRSW varieties for yield and other agronomic parameters
grown with intensive management in an irrigated environment.
Soil: |
Maddock sandy loam and Hecla sandy loam;
pH=7.1; 1.9% organic matter; soil‑P was very high, soil-K was medium
and soil-S was high. |
Previous crop: |
2006 – sugar beet; 2005 - field corn; 2004
- cabbage, carrot, edible bean, field pea, mustard,
millet, soybean, sweet corn and wheat. |
Seedbed Preparation: |
Fall disk and coulter chisel. Multiweed (field cultivate) April 18 to
smooth the seedbed. |
Planting: |
Planted on April 19. Planting rate was 1.7 bu/acre (1,500,000
seeds/acre). |
Plots: |
Plots were 68 ft long by 7 ft wide. There were four reps. |
Fertilizer: |
November 2006, broadcast 9 lbs N/acre, 43 lbs P2O5/acre,
101 lbs K2O/acre and 13.5 lbs S/acre as 11-52-0, 0-0-60 and
90% elemental sulfur. Side
dress 60 lbs N/acre on May 7 and 50 lbs N/acre on May 22 as 32-0-0. |
Irrigation: |
Overhead sprinkler irrigation as needed. |
Pest control: |
Apply Wolf Pak (1.35 pt/acre) on May 7,
Axial (8.2 oz/acre) + Adigor (9.6 oz/acre) on May 23. Apply Headline (6 oz/acre) on May 22, Tilt
(4 oz/acre) on June 4 and Folicur (2 oz/acre) + Proline (2 oz/acre)
on June 15, June 16 and June 18. |
Harvest: |
Harvested on August 10 with a Hege plot
combine. Harvest area was a five-foot
section from the middle of the plot 68 feet long. |
Yield, test weight, kernel weight, grain
protein, height, and heading date were significantly different among
varieties. Yield, test weight and grain
protein averaged 57.0 bu/acre, 59.1 lb/bu and 14.1 percent. Lodging, which is usually yield limiting at
this site under irrigation, was not a factor in 2007.
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Table 1. Yield and agronomic characteristics in an irrigated hard red spring wheat variety trial at the Oakes Irrigation Research Site at Oakes, ND in 2007.
Variety |
Yield |
TW |
Kernal wt. |
Protein |
Height |
Heading date |
bu/ac |
lb/bu |
gm/1000 |
% |
inches |
||
|
||||||
Bigg Red |
61.5 |
60.7 |
34.0 |
13.8 |
37 |
June 15 |
Faller |
60.4 |
58.5 |
38.0 |
13.9 |
33 |
June 14 |
Freyr |
51.8 |
57.1 |
31.1 |
14.3 |
33 |
June 14 |
Glenn |
51.1 |
61.9 |
32.3 |
14.7 |
35 |
June 11 |
Howard |
59.5 |
60.7 |
35.3 |
14.2 |
32 |
June 11 |
Kuntz |
58.6 |
58.9 |
30.7 |
14.1 |
30 |
June 14 |
Traverse |
55.8 |
55.9 |
31.7 |
13.8 |
35 |
June 12 |
|
||||||
MEAN |
57.0 |
59.1 |
33.3 |
14.1 |
33 |
June 13 |
C.V. (%) |
5.6 |
1.2 |
3.0 |
1.7 |
2.4 |
|
LSD (0.05) |
4.7 |
1.1 |
1.5 |
0.3 |
1.2 |
|
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