2014
Impact of selected establishment factors and foliar fungicide on soybean production
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Contributor/Checkoff:
North Dakota Soybean Council
Category:
Sustainable Production
Keywords:
Crop protectionDiseaseField management
Parent Project:
Impact of selected establishment factors and foliar fungicide on soybean production
Lead Principal Investigator:
Greg Endres, North Dakota State University
Co-Principal Investigators:
Hans Kandel, North Dakota State University
Michael Ostlie, North Dakota State University
Steve Schaubert, North Dakota State University
Blaine Schatz, North Dakota State University, Carrington Research Extension Center
+3 More
Project Code:
Contributing Organization (Checkoff):
North Dakota Soybean Council
(n/a)
Institution Funded:
North Dakota State University
(n/a)
Brief Project Summary:

A dryland field study was initiated at the NDSU Carrington Research Extension Center in 2011 and continues at the current time to examine soybean response to individual and combinations of selected establishment factors and foliar fungicide that may increase net return for producers. The study include planting dates (early and normal), tillage systems (conventional till and direct seed into standing small grain stubble), starter fertilizer (liquid 6-24-6) applied during day of planting (untreated check, broadcast applied, 0x2-inch band, and mid-row band) according to soil analysis and a foliar fungicide applied during flowering or early pod development stages.

Unique Keywords:
#band fertilizer, #broadcast fertilizer, #fungicide evaluations, #soybean diseases, #soybean planting date, #soybean production systems
Information And Results
Final Project Results

Three-year (2011-13) results from the 4-factor study at Carrington include:
• Early-planted soybean (May 5, 2011 and April 30, 2012) emerged 10 days earlier, flowered 5 days earlier, and yielded 3 bu/acre (6.2%) higher compared to the later-planted soybean (May 19, 2011 and May 15, 2012). Due to the late start to planting in 2013, the first planting date was May 28, which had 14 additional days of growth from planting to maturity and tended to have higher yield compared to the late planting date of June 12.

• Yield was similar across years between tillage systems: conventional tillage = 45.1 bu/acre, directseed = 44.3 bu/acre. • Response to broadcast- vs. bandapplied fertilizer was similar each year and averaged 0.6-0.7 bu/acre greater than the untreated check.

• In 2011, yield increased 6.5 bu/acre (14.5%) with foliar fungicide compared to the untreated check. Fungicide application was made several days after significant hail damage to the trial. In 2012 and 2013, yield did not increase with fungicide. Across years, yield with fungicide averaged 45.1 bu/acre compared to 44.4 bu/A with the untreated check.

This database would indicate the greatest potential for increasing soybean yield is with early planting.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.