November 18, 2020
- Corn silage is an important feedstock for cattle producers across the Great Plains.
- Desirable corn products should produce high tonnage with favorable silage quality characteristics.
- The objective was to help provide insights to farmers on tonnage and silage quality of the corn products evaluated in this study.
RESEARCH SITE DETAILS
|Soil Type||Silt loam|
- The study was set up as a randomized complete block with three replications.
- Seven DEKALB® corn products were evaluated.
- Corn was sprinkler irrigated. Fertility included 100 lb N/acre applied with a streamer bar on 4/27/20, followed by 90 lb N/acre and 15 lb S/acre applied with 360 Y-DROP® applicators on 6/24/20. Weeds were controlled as needed and no fungicides or insecticides were applied.
- Silage was harvested when most of the products were at approximately half-milk line using a silage chopper without a kernel processor. Total biomass was collected and weighed. A subsample of the freshly-chopped material was collected and sent to Dairyland Laboratories Inc. for silage quality analysis.
- Two corn products (DKC66-74RIB, DKC70-64RIB) had greensnap at a high level which did not allow for silage tonnage to be calculated but a subsample was taken for silage quality analysis.
UNDERSTANDING THE RESULTS
Figure 1. DKC64-44RIB Brand blend corn product at the time of cutting.
Figure 2. Average silage yield (tonnage) for corn products tested.
- Corn product tonnage was numerically different but variability in the study did not allow for significant differences to be observed (Figure 2).
- Corn silage quality was different in all parameters tested (Table 1).
- DKC64-44RIB Brand blend and DKC58-34RIB Brand blend had the highest milk per ton for this trial.
- Producers should work with their local DEKALB® seed sales team to identify which corn product is right for their operation.