2023 Channel® Brand Corn Product Comparisons Following Cover Crop Mix

May 21, 2024


  • Testing various corn products is crucial for better understanding how to position products in the right field and under the right management conditions to meet the farmer’s needs.
  • The objective of this trial was to test a broad spectrum of Channel® brand corn products that are currently recommended for the western Central Plains in a high-residue environment.


site details
  • The trial was arranged in a randomized complete block design with four replications. The only treatment factor was the corn product.

List of field operations, products, and rates in 2023.

  • Early stand counts and Normalized Difference Vegetation Index (NDVI) were measured on 6/26/2023.
  • Final stand counts, intactness ratings, lodged plants, and ear height were measured at harvest time.
  • The total rainfall accumulated during the 2023 corn growing season was 13.5 inches. This trial was irrigated with a linear overhead irrigation system and the total irrigation applied was 2 inches. The trial had a wind storm a few days prior to harvest that impacted intactness ratings and stalk lodging percentages.

List of Channel® brand corn products included in this trial.


  • During the spring of 2023, the predominant species in the cover crop mix were cereal rye and winter barley. Cover crop biomass averaged 1,062 lb/acre at the time of termination on 05/20/2023.
  • Due to late-season water stress, the grain yields reached were not as high as expected. As a reference, from August 8th to September 9th the trial received no rain or irrigation and temperatures were higher than normal.
  • The highest yield was produced by 214-22STXRIB at 245.7 bu/acre while the lowest yield was produced by 211-57STXRIB at 189.1 bu/acre, 23% less than 214-22STXRIB (Table 3).
  • Early stand counts for 214-78DGVT2PRIB were 33,977 plants/acre, which was 5.6% lower than the seeding rate of 36,000 seeds/acre (Table 3). 212-70TRERIB and 213-70TRERIB had the lowest early stand counts at 32,314 plants/acre, or 10.2% less than the seeding rate. Despite the numerical differences, there was no statistical difference in early stand counts across Channel® brand products.
  • Normalized Difference Vegetation Index (NDVI) at corn V6 growth stage was higher in 212-70TRERIB with 0.61, whereas 214-22STXRIB had 0.44 (Table 3). Those differences could be justified by their distinct relative maturities, Growing Degree Units (GDUs), vigor, and plant architecture. A late-maturity product would be a growth stage behind and consequently have lower biomass, a key indicator of NDVI.
  • Late season stand counts were the highest for 214-78DGVT2PRIB with 34,690 plants/acre, or 3.6% below the seeding rate of 36,000 seeds/acre. 211-11VT2PRIB produced the lowest stand count at 30,202 plants/acre, or 16.1% less than the seeding rate (Table 3).
  • Stalk lodging was significantly different between Channel® brand products, with the highest lodging rate occurring in 211-11VT2PRIB (36.6% of total final stand) and the lowest in 213-13SSPRIB (4.9% of total final stand) (Table 3 and Figures 2 and 3).
  • 209-25SSPRIB had the best intactness rating (3.8) among all Channel® brand products tested (Table 3 and Figures 2 and 3).
  • There was a significant difference in ear height between the Channel® brand products in this trial (Table 3 and Figures 2 and 3). 214-78DGVT2PRIB had the highest measured ear height at 60.5 inches. Corn products 203-83SSPRIB and 207-42STXRIB had ear height measurements of 41.5 inches (31.4% lower compared to 214-78DGVT2PRIB).
. Aerial overview of the Channel® brand product testing at the Gothenburg Learning Center in 2023
Figure 1. Aerial overview of the Channel® brand product testing at the Gothenburg Learning Center in 2023 (A), and replications and lodged plants in the trial (B). Pictures were taken October 23, 2023.

Channel® brand product yield, yield difference from the top product, early stand count, early stand vs seeding rate, normalized difference vegetation index (NDVI), final stand count, final stand vs seeding rate, stalk lodging, intactness, and ear height by corn product under no-till and cover crop mix residue.