Combine collecting grain

Agronomic Research

Soil Preparation

We know you’re always on the lookout to add efficiency to your operation, exploring new ways to reduce operating costs or pump up your yields a little more … Below you’ll find the latest research and studies from universities, extension services, and John Deere, all designed to help give you a greater advantage.

field of crops

Most critical factor of corn yield during in-field testing

University of Minnesota research on emergence, timing, population, and spacing found that uniform emergence has by far the largest impact on yield, up to 9%.

Man touching baby plant

ExactEmerge™ scores high marks during in-field testing

Research at a major land grant university shows John Deere ExactEmerge outperforms the standard for spacing and emergence, even at planting speeds of 10mph.

Plants in soil

Don’t let uneven emergence rob your yield

A recent study by Purdue University identified the top factors of corn yield: even emergence, soil moisture, soil temperature, and seed-to-soil contact. Of these, even emergence had the largest impact on ultimate yield.

Sky and field of crops

Want to maximize corn yield potential? Follow these four keys

Make no mistake, planting is the most critical aspect of the production cycle. So it's important to lay a strong foundation to reach the full potential of your operation. But there are four aspects that stand out the most.

Purdue Agronomy log

You Can't Argue With Results

We ran the tests … and so did Purdue University. Here’s the plain truth: running at faster speeds with ExactEmerge™ has no negative effect on accuracy. So whether you’re bumping up from 5mph to 7mph, or 6mph to 8mph, or higher, you get all the agronomic benefits to help maximize your full yield potential with the added bonus of increased planting speeds to take advantage of short windows.

rows of crop using section control

Automated section control pays for itself in 2 years

This 2011 study from Auburn University shows that using automatic section control during planting delivers input savings from 1% to 12% on each pass, with an average seed savings of 4.3%. Investing in section control technology will pay for itself within 2 years.

man touching small plant

Find a fit for variable planting rates and hybrids

Planters are being loaded up with technology that allows variable seeding, but agronomists warn that you have to carefully plan for payback. (16-10)

graphic of side banding

Air Seeding

Is one banding system – side band or mid-row band – better than the other? Some of our competitors would have you think yes … mid-row. But the truth is there is no agronomic advantage of one of these placement practices over the other. And that’s not our word. That comes straight from the Prairie Agricultural Machinery Institute (PAMI).

Combine at work in the field

Save up to 30% on inputs with automated guidance and section control

Research at Auburn University showed a possible 30% in overall savings when using section control and guidance together. So investing in precision guidance is really a no-brainer.

Must-See TV: Precision Technology in a Corn Production system

The machine and agronomic data your equipment generates can increase yields and decrease operating costs; this pre-recorded webinar featuring John Fulton from Ohio State shows you how. (16-04)

Read the crop and nutrition article

At 200# rate, NH3 saves $28/acre vs. 32% UAN

Applying anhydrous can be precise AND profitable … but don’t take our word for it, check out a recent article by Russ Quinn of DTN. (Reprinted by permission, copyright 2015 Telvent DTN, LLC).

link to Herbicide resistant weed article

Managing herbicide-resistant weeds

If not controlled, herbicide-resistant weeds can reduce yield by 6.1% or more, according to university studies; this research report outlines a number of proven options to manage them. (16-07)

details for Automatic boom-section control

Make every drop count. Automatic boom-section control saves an

Adding automatic boom-section control delivers savings between 2% and 12%, according to this Auburn University study. Reduce your overlap on point rows, headlands, small, irregular-shaped fields or waterways.

Formulating the right dairy ration brochure

Follow link to Challenges and solutions brochure

What does it take to develop the perfect ration to boost milk production? First, it takes an understanding of the many challenges. John Deere experts take a closer look and offer solutions. (16-08).

Cows Feeding-View the Penn State article PDF

Is shredlage a good idea?

A Penn State University finds that shredlage "does not give the cow any more physically effective fiber (PDF) or provide any advantage over conventionally chopped silage in this aspect of the diet.” (16-05).

View tracking forage article

Tracking forage info pays

Purdue University's Animal Science Research Center uses high-tech tools like John Deere HarvestLab to obtain higher-precision information, higher-quality forages. (16-10)