November 16, 2022
Evaluation of DEKALB® Brand Corn Products - 2022
TRIAL OBJECTIVE
Each season, the Bayer Learning Center at Scott, Mississippi evaluates market leading corn products for adaptability to the southern corn growing region (Figure 1).
These experiments are conducted at Scott on different alluvial delta soil types. The Buckshot site is a heavy clay and the Highway site is deep sand.
Yield potential and plant characteristics (ear height and weight) are important factors to consider when selecting a corn product for your operation.
RESEARCH SITE DETAILS
| Location | Scott, MS | ||
| Soil Type | Buckshot (45 CEC), Highway Field (15 CEC) | ||
| Previous Crop |
Cotton | ||
| Tillage Type |
Conventional |
| Planting Date | 3/8/22 | ||
| Harvest Date | 8/31/22 | ||
| Potential Yield (bu/acre) |
250, 300 | ||
| Seeding Rate (seeds/acre) |
37,500 |
- All field work, tillage, and herbicide applications were per local standards.
- Fertility included 275 lbs of nitrogen applied to both sites as liquid 28-0-0-5
Table 1. DEKALB® corn products tested at the Buckshot and Highway sites in 2022.
- Plots were planted in 6 row strips of 360- or 600-feet long ranging from 0.16 to 0.26 acre per plot and not replicated.
- Buckshot Field: 12 row plots, 570 feet long
- Highway Field: 6 row plots, 450 feet long
- Trials averaged 92% stand establishment post emergence
- Average yield data were collected with a commercial combine via whole plot harvest. Data were corrected to 15.5% moisture.
UNDERSTANDING THE RESULTS
Buckshot Site
- Average yields were excellent in this environment for 2022 with an average of 182 bu/acre across the study. Several corn products yielded in the range of 200 bu/acre indicating DEKALB® brand has a great offering of new and existing products for the heavy land environment. Yields during 2022 were lower compared to 2021 in many Scott Learning Center fields and experiments.
Highway Site
- Average yields in 2022 were higher at this location than the Buckshot site with an average of 239 bu/acre. The top end yields in this environment for 2022 were in the 260 bu/acre range with several products (6 of 18) demonstrating yields higher than 250 bu/acre. Of the tested products, 11 of 18 yielded greater than 240 bu/acre.
Figure 1. Corn product evaluations at the Buckshot site at the Bayer Learning Center at Scott, Mississippi in 2022. Average yield across corn products was 182 bu/acre. Highest recorded yield at this location was 206 bu/acre, and lowest recorded yield was 154 bu/acre.
Figure 2. Corn product evaluations at the Highway site at the Bayer Learning Center at Scott, Mississippi in 2022. Average yield across corn products was 239 bu/acre at this location. Highest recorded yield was 263 bu/acre, and lowest recorded yield was 200 bu/acre.
KEY LEARNINGS
- The 2022 yield results at these locations demonstrated a robust lineup of DEKALB® brand corn products that have shown to adapt to the diverse soil types of the Mississippi Delta.
- Growers should consider personal preference and a corn product’s yield potential and plant characteristics when making selections for the 2023 growing season.
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Evaluation of DEKALB® Brand Corn Products - 2021
TRIAL OBJECTIVE
Each season, the Bayer Learning Center at Scott, Mississippi evaluates market leading corn products for adaptability to the southern corn growing region (Figure 1).
These experiments are conducted at Scott on different alluvial delta soil types. The Buckshot site is a heavy clay and the Highway site is deep sand.
Yield potential and plant characteristics (ear height and weight) are important factors to consider when selecting a corn product for your operation.
Figure 1. DEKALB® brand yield trial at Scott, MS (2021).
Considerations for Planting Dekalb® Corn in 2021 pt 1
To start of his series about considerations to make when planting Dekalb corn in 2021, Jay Mahaffey talks about several aspects of preplanting, including row configuration, hybrid consideration, seed treatment, technology, and planter preparation.
Part 2 of this series Standability and Yield Potential of DEKALB® Corn Products to Seeding Rate - 2020
RESEARCH SITE DETAILS
- All field work, tillage, and herbicides were per local standards.
275 lbs/acre of nitrogen (N) was applied to both experiments as liquid 28-0-0-5.
There were 20 DEKALB® Brand products planted:
DKC62-08 Brand (SmartStax® Corn)
DKC62-53 Brand (VT Double PRO® Corn)
DKC62-70 Brand (VT Double PRO® Corn)
DKC62-89 Brand (Trecepta® Corn)
DKC64-35 Brand (VT Double PRO® Corn)
DKC65-84 Brand (SmartStax® Corn)
DKC65-95 Brand (VT Double PRO® Corn)
DKC65-99 Brand (Trecepta® Corn)
DKC66-18 Brand (VT Double PRO® Corn)
DKC66-75 Brand (VT Double PRO® Corn)
DKC66-94 Brand (Roundup Ready® Corn 2)
DKC67-37 Brand (SmartStax® Corn)
DKC67-44 Brand (VT Double PRO® Corn)
DKC67-72 Brand (VT Double PRO® Corn)
DKC67-94 Brand (Trecepta® Corn)
DKC68-48 Brand (SmartStax® Corn)
DKC68-69 Brand (VT Double PRO® Corn)
DKC68-95 Brand (SmartStax® Corn)
DKC69-99 Brand (Trecepta® Corn)
DKC70-27 Brand (VT Double PRO® Corn)
Plots were single replicates planted in 38-inch wide six row strips.
Row length varied from 360 to 600 feet long and ranged from 0.16 to 0.26 acre/plot.
| Location | Scott, MS | ||
| Soil Type | Buckshot (45 CEC), Highway Field (15 CEC) | ||
| Previous Crop |
Cotton | ||
| Tillage Type |
Conventional |
| Planting Date | 4/6/21 | ||
| Harvest Date | 8/25/21 | ||
| Potential Yield (bu/acre) |
250, 300 | ||
| Seeding Rate (seeds/acre) |
37,500 |
- Data collected:
- Buckshot Site
- Average yield (bu/acre) determined by harvesting entire plot with commercial combine and moisture content corrected to 15.5%
- Highway Site
- Average yield (bu/acre) determined by harvesting entire plot with commercial combine and moisture content corrected to 15.5%.
- Ear height – The height of 10 ears per product was measured from the ground to the ear shank.
- Ear weight – 10 ears per product were weighed.
- Buckshot Site
UNDERSTANDING THE RESULTS
- Plots averaged 92% stand establishment post emergence.
- Buckshot Site
- Yields were excellent in these soil types for 2021 with an average yield of 224 bu/acre.
- Several products tested had average yields in excess of 230 bu/acre indicating that the DEKALB® Brand offers several new and existing products that can yield well in heavy soils.
Figure 2. Average DEKALB® brand yield (bu/acre) at the Bayer Learning Center at Scott, MS Buckshot Field (2021) at 15.5% moisture content.
- Highway Site
- Yields at this location were higher than the Buckshot location with an average yield of 256 bu/acre.
- The highest average yields in this trial were in the 280 bu/acre range with several products (8 of 20) demonstrating average yields in excess of 260 bu/acre. In this trial, 15 of 20 tested products yielded more than 250 bu/acre.
- Ear height varied by up to 13 inches (23%) across the tested products.
- Ear weight varied by up to 50 grams (21%) across the tested products.
Figure 3. Average DEKALB® brand yield (bu/acre) at the Bayer Learning Center at Scott, MS Buckshot Field (2021) at 15.5% moisture content.
Figure 4. DEKALB® brand average ear weight (grams/ear) of 10 ears per product at the Bayer Learning Center at Scott, MS (Highway Field - 2021).
Figure 5. DEKALB® brand average ear height (inches) of 10 ears per product from ground to shank base at the Bayer Learning Center at Scott, MS (Highway Field - 2021).
KEY LEARNINGS
Based on the average ear height, ear weight, and yield data from this trial, the DEKALB® brand offers a robust lineup of corn products that fit the diverse soil types of the Mississippi Delta.
- Growers should consider their personal preferences, product yield potential, and individual plant characteristics when selecting corn products for the 2022 growing season.
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Yield Response of Dekalb Corn Hybrids - 2019
TRIAL OBJECTIVE
Every season, new corn products are introduced into the marketplace.
This field demonstration was conducted to evaluate the adaptation and yield potential of existing and new DEKALB® corn products in the production system at the Scott Learning Center in Scott, Mississippi.
RESEARCH SITE DETAILS
Corn Populations
Sammy Soignier and Jay Mahaffey give a brief visual tour of corn populations in 2020.
| Location | Scott, MS | ||
| Soil Type | Commerce silt loam | ||
| Previous Crop |
Cotton | ||
| Tillage Type |
Conventional |
| Planting Date | 4/03/19 | ||
| Harvest Date | 8/19/19 | ||
| Potential Yield (bu/acre) |
275 | ||
| Seeding Rate (seeds/acre) |
37.5K |
- Fourteen DEKALB® corn brands were planted in single-row plots with 38-inch row spacing at 37,500 seeds/acre in a bedded planting system:
- DKC 62-08
- DKC 62-53
- DKC 64-35
- DKC 65-95
- DKC 65-99
- DKC 66-18
- DKC 66-75
- DKC 67-44
- DKC 67-72
- DKC 67-99
- DKC 68-26
- DKC 68-69
- DKC 69-26
- DKC 70-27
- All weed control, insect control, and irrigation inputs were applied per local standards.
- 240 lb actual nitrogen was soil applied as 32% UAN in liquid form using knife application.
- Strip plots were 12 rows x 500 feet long; 6 rows were harvested for yield.
- Seedling emergence/establishment during 2019 was over 90%.
UNDERSTANDING THE RESULTS
- In 2019, corn yields were near the long-term averages, which are typically 250+ bu/acre.
- Several of the planted products appeared to be very well adapted for the high-input, irrigated corn production systems of the deep south.
- Little lodging was observed in 2019 but it could be an issue with taller, more erect corn products. For that reason, this data should mainly be used as an indication of yield potential and population determinations for each field made on a site/product-specific basis.
KEY LEARNINGS
- Growers should carefully evaluate each product planted for both yield response and standability.
- Breeding efforts continue to focus on developing locally adapted corn products to serve the needs of southern corn producers.
- Please consult your local Bayer sales representative for further information.
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