Getting more corn yield per acre was the theme of an interview I did with Shannon Hauf, Monsanto Area Technology Development Manager for Minnesota and Iowa. Shannon was attending a Monsanto Technology Showcase Tour event in Elkhart, IA.
I got to speak with her after listening to a field stop that was all about “stress mitigation.” Shannon says that about three years ago during drought conditions in Illinois, farmers who had planted Monsanto’s YieldGard Rootworm technology were getting yield increases that were two to three times better than what Monsanto had anticipated. So in the following years she says they’ve been doing a series of stress mitigation trials. Those are now being done with the YieldGard VT Triple technology. In plots like the ones we were able to see, you can physically see the difference on the plants themselves.
Simulating drought here on the farm for this tour stop was accomplished by using a tent that allows light to pass through but not rainfall.. . The purpose of the stress mitigation tent is to determine how biotech traits help protect the corn plants from dry weather and other stresses. I can vouch for the fact that the drought-applied plants looked just as healthy as those that received plenty of moisture. Shannon says they monitor conditions below the ground using soil moisture probes and those show that the root structure for the YieldGard VT Triple plants under stress is significantly deeper than the conventional corn hybrids.
She finds it very interesting that this stress mitigation benefit is an “added value” to the technology that was originally developed to assist with weed control and to control pests.
One other thing that Shannon wants growers to consider to increase corn yield is planting more plants per acre. Because advances in germplasm and traits enable corn plants to tolerate higher plant densities, she says a 10 percent increase in plant populations per acre is recommended which will put “more ears on that acre.”
You can listen to my interview with Shannon here: monsanto-tech-showcase-hauf.mp3