2017
Utilizing Soybean Maturity Class, Planting Date and Plant Population to Increase Soybean Production in West and Central ND
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Contributor/Checkoff:
North Dakota Soybean Council
Category:
Sustainable Production
Keywords:
Field management Nutrient managementSoil healthTillageYield trials
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Jasper M. Teboh, North Dakota State University, Carrington Research Extension Center
Co-Principal Investigators:
John Rickertsen, North Dakota State University- Hettinger Research Extension Center
Szilvia Zilahi-Sebess, North Dakota State University, Carrington Research Extension Center
Eric Eriksmoen, North Dakota State University-North Central Research Extension Center
+2 More
Project Code:
Contributing Organization (Checkoff):
North Dakota Soybean Council
$19,875
Institution Funded:
North Dakota State University, Carrington Research Extension Center
$19,875
Brief Project Summary:

Soybean acreage has increased over the years in North Dakota (ND) but mostly in the East. The realization that there is limited data from soybean production research in Western ND, amidst growing interest from farmers and stakeholders to expand production towards the western and Northern parts of the state, has highlighted research needs for these areas often considered, marginally productive. Soybean is a profitable crop, useful in diversifying rotations, and planting fields when field management constraints such as wet soils delay timely planting of small grains. There are two important decisions that farmers make each year that greatly affect yield potential and economic returns;...

Unique Keywords:
#crop management systems
Information And Results
Final Project Results

Update:

View uploaded report Word file

Title: Utilizing soybean maturity class, planting date, and plant population to increase soybean production in West and Central ND

Principal Investigator: Jasper M Teboh, NDSU-Carrington REC;
Co-Principal Investigators: John Rickertsen, NDSU-Hettinger REC; Eric Eriksmoen, NDSU-North Central REC; Szilvia Yuja, NDSU-Carrington REC

Executive summary 2016

Historically, soybean maturity group (duration from seeding to maturity), planting date, and plant population (seeding rate), have been vital when producers make decisions to grow soybean. Despite the singular importance of each of these factors, the impact of one factor on yields sometimes depends on the other factors. These factors are of interest especially to new soybean producers and those expanding production in non-traditional soybean production regions in North Dakota (ND), where shortage of rainfall and soil management are key determinants for a successful soybean production. This is the case of several producers west of the Missouri River, and in central ND. The goal of this project is to enhance ND farmers’ soybean production by providing research-based information that facilitates their production decisions.

This research was conducted at Hettinger, Carrington, and Minot. Four soybean cultivars of maturity groups (MG- 0.4, 0.6, 0.8) were seeded on three dates considered early, normal, and late, at three seeding rates (80,000, 120,000, and 160,000, and 200,000 seeds/ac). A cultivar that is MG 0.4 should mature earlier than a MG 0.6 and much earlier than MG 0.8. All trials were established under dryland conditions in addition to an irrigated (pivot) site at CREC. The four cultivars planted included two conventional cultivars, Ashtabula (MG-0.4) and Prosoy (MG-0.8), and two Round Up Ready cultivars, Proseed 50-60 (MG-0.6) and Proseed 30-80 (MG-0.8). Row spacing was 14 inches. The planting dates were May 4th, 19th, and June 2nd at Hettinger, on May 6th, 17th, and June 3rd at Minot, and May 6th, May 20th, and June 2nd at Carrington.

Our results in 2016 showed that, planting date had a significant effect on soybean yield for some cultivars and not for others. Seeding the early cultivar (MG 0.4) in early May resulted in the lowest yield, at all three sites evaluated. At Hettinger, yields from May 17th were significantly greater than from May 4th or June 2nd. Planting a late cultivar like Proseed 30-80 (MG 0.8) as late as June suggested higher risk of significant yield loss as observed in Carrington where, yields were consistently greater for later MG cultivars planted early. Average yield of all sites following early, normal, or late seeding were, 36, 37, 33 bu/ac, respectively. Seeding population had significant impact on yields at all sites but Hettinger. The 160,000 seeding rate produced the most optimal yields. Impact of seeding rate on yield did not depend on maturity group or date.

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.