Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Less Is More in Soybean Row Widths

Soybean production has continued to increase in the Northeast United States with more and more first time growers planting the crop and many experienced growers planting alongside corn crops. To save on time and expenses, some farmers plant soybeans with a corn planter in 30-inch rows instead of 7.5-inch rows with the regularly used grain drill.

Dr. William Cox, a Cornell University scientist, investigated the response of two soybean varieties in row widths of 7.5, 15, and 30 inches at four seeding rates in a study funded by a USDA Hatch grant.

Cox measured emergence rates of soybean, growth, yield components, and seed yield of soybean to determine if soybeans can grow rapidly enough in 30-inch rows compared to smaller rows during the northern latitudes’ shorter growing season.

Previous research suggests soybeans grown in northern latitudes yield best in rows of less than 15 inches.

However, the high price of soybean seeds may influence growers to use the corn planter because of its uniform seed depth and distance between seeds in a row reducing seeding rates.

Cox discovered that soybeans grown in 30-inch rows had approximately 15% lower biomass than soybeans grown in 7.5 inch rows. The lower biomass contributed to 14% fewer pods, 9% fewer seeds, and 15% lower harvest yield.

“What this study shows is that the soybean yield potential is about 15% greater when drilled in 7.5-inch rows compared to when planted with a corn planter in 30-inch rows in this Northeast environment,” says Cox.

Nevertheless, Cox stresses that the conclusions are based on an experiment done in a controlled setting and should be interpreted as such.

“Care must be taken in interpreting the results of this small plot study, where weed escapes were controlled by hand-weeding ,and Roundup and aphicide applications were made so as not to run over soybean plants in any of the row widths,” he adds.

The full results of the study are available in the January/February 2011 issue of Agronomy Journal.

The full article is available for no charge for 30 days following the date of this summary. View the abstract at

A peer-reviewed international journal of agriculture and natural resource sciences, Agronomy Journal is published six times a year by the American Society of Agronomy, with articles relating to original research in soil science, crop science, agroclimatology and agronomic modeling, production agriculture, and software. For more information visit:

The American Society of Agronomy (ASA), is a scientific society helping its 8,000+ members advance the disciplines and practices of agronomy by supporting professional growth and science policy initiatives, and by providing quality, research-based publications and a variety of member services.

Sara Uttech | Newswise Science News
Further information:

Further reports about: Agronomy corn plant lower biomass seeding rates soybean

More articles from Agricultural and Forestry Science:

nachricht Algorithm could streamline harvesting of hand-picked crops
13.03.2018 | University of Illinois College of Engineering

nachricht A global conflict: agricultural production vs. biodiversity
06.03.2018 | Georg-August-Universität Göttingen

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Locomotion control with photopigments

Researchers from Göttingen University discover additional function of opsins

Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...

Im Focus: Surveying the Arctic: Tracking down carbon particles

Researchers embark on aerial campaign over Northeast Greenland

On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...

Im Focus: Unique Insights into the Antarctic Ice Shelf System

Data collected on ocean-ice interactions in the little-researched regions of the far south

The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...

Im Focus: ILA 2018: Laser alternative to hexavalent chromium coating

At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.

When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...

Im Focus: Radar for navigation support from autonomous flying drones

At the ILA Berlin, hall 4, booth 202, Fraunhofer FHR will present two radar sensors for navigation support of drones. The sensors are valuable components in the implementation of autonomous flying drones: they function as obstacle detectors to prevent collisions. Radar sensors also operate reliably in restricted visibility, e.g. in foggy or dusty conditions. Due to their ability to measure distances with high precision, the radar sensors can also be used as altimeters when other sources of information such as barometers or GPS are not available or cannot operate optimally.

Drones play an increasingly important role in the area of logistics and services. Well-known logistic companies place great hope in these compact, aerial...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

International Tinnitus Conference of the Tinnitus Research Initiative in Regensburg

13.03.2018 | Event News

International Virtual Reality Conference “IEEE VR 2018” comes to Reutlingen, Germany

08.03.2018 | Event News

Latest News

Wandering greenhouse gas

16.03.2018 | Earth Sciences

'Frequency combs' ID chemicals within the mid-infrared spectral region

16.03.2018 | Physics and Astronomy

Biologists unravel another mystery of what makes DNA go 'loopy'

16.03.2018 | Life Sciences

Science & Research
Overview of more VideoLinks >>>