Corn Product Silage Quality and Tonnage

Click on a tab below to see data collected each year for this study

 

NOVEMBER 18, 2020

Corn Product Silage Quality and Tonnage - 2020

 

TRIAL OBJECTIVE

  • 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

Location Gothenburg, NE     
Soil Type  Silt loam   

Previous
Crop
Soybean     
Tillage
Type
 
Strip till


 
Planting Date 4/28/20    
Harvest Date 9/15/20  

Potential Yield
 (bu/acre)
250    
Seeding Rate
(seeds/acre)

40K


 

  • 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

image Figure 1. DKC64-44RIB Brand blend corn product at the time of cutting.
image Figure 2. Average silage yield (tonnage) for corn products tested.
image
  • 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.

KEY LEARNINGS

  • Producers should work with their local DEKALB® seed sales team to identify which corn product is right for their operation. 
 
7006_R2_20 

 

November 19, 2019

Corn Product Silage Quality and Tonnage - 2019

 

TRIAL OBJECTIVE

 

  • 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. 

  • In this study, the objective was to provide insights to farmers on which of the 22 corn products evaluated have high tonnage and good silage quality characteristics.

 

RESEARCH SITE DETAILS

Location Gothenburg, NE     
Soil Type  Hord silt loam   

Previous
Crop
Grain sorghum    
Tillage
Type
 
Strip tillage


 
Planting Date 5/23/19    
Harvest Date 10/1/19  

Potential Yield
 (bu/acre)
250    
Seeding Rate
(seeds/acre)

36K


 
  • The study was set up as a randomized complete block with three replications. 

  • Twenty-two corn products were evaluated. 

  • Corn was sprinkler irrigated and weeds were controlled as needed. No fungicide or insecticide was applied. 

  • Silage quality was sampled for each corn product at ½ milk line. Sampling dates varied by relative maturity, but all sampling occurred in the last two weeks of September.  

  • Corn products were hand-harvested about 4 inches above the soil surface to provide a representative sample and were then chopped with a silage chopper. 

  • A subsample of the freshly-chopped material was collected and sent to Dairyland Laboratories Inc. for silage quality analysis. 

  • Total biomass was collected, weighed, and tonnage was determined for each corn product.

 

UNDERSTANDING THE RESULTS

 

  • Corn products did vary in silage quality and tonnage as there were significant differences in all parameters tested as reported in Table 1. 

 

Figure 1. Short- and long-season corn products at harvest.
Image 98RM corn product at silage harvest.
iamge DKC70-26RIB corn product at silage harvest.

KEY LEARNINGS

 
  • Producers should work with their local seed sales team to identify how their branded corn products performed in this study. 

 

 7006_R2

This browser is no longer supported. Please switch to a supported browser: Chrome, Edge, Firefox, Safari.