“Do Fungicides Pay in Drought?” Question Answered in 2012

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Syngenta yield data indicates Quilt Xcel® fungicide helped corn and soybeans in drought-stressed regions across the U.S. better tolerate the 2012 drought.

Quilt Xcel has been shown to reduce stomatal conductance, or the passing of water through the plant stomates, the natural openings in plants that allow exchange of water and gases. This improves a plant’s water use efficiency. As plants regulate water loss more efficiently, soil moisture is conserved and plants are better equipped to tolerate periods of hot, dry weather.

A number of trials this year indicated yield boosts significantly higher than the averages Syngenta promotes for Quilt Xcel, which are 6-8 bu/A in corn when applied at the early V4-V8 timing, 14 bu/A in corn when applied around R1 and 4-8 bu/A in soybeans. The significant yield boosts often seen this year demonstrate a benefit from fungicide applications even in drought conditions. Trials in both Sioux County, Iowa and Trenton, Ky. this year showed corn treated with Quilt Xcel at the early timing out-yielding untreated corn by roughly 31.9 bu/A under severe drought conditions. In a soybean trial under drought conditions in Findlay, Ohio, Quilt Xcel-treated soybeans out-yielded untreated soybeans by 11.6 bu/A.

In a 2011 irrigation study conducted at Kansas State University, fully irrigated untreated corn produced the same yield (214 bu/A) as corn that only received 60 percent irrigation but was treated with Quilt Xcel at the early V4-V8 timing and again at R1.

Similarly, in a 2010 study at the University of Nebraska, corn treated with Quilt Xcel increased yields by 8 and 15 bu/A over untreated checks in plots that were fully irrigated and plots that were 60 percent irrigated, respectively. In addition, the 60 percent irrigated plot saved the grower the expense of 4.8 inches of water per acre as well as costs associated with pumping the water.
Aside from water use efficiency, Quilt Xcel offers other yield-boosting benefits. With Quilt Xcel, plants stay green longer, allowing for more plant growth; corn ears and soybean pods grow bigger and experience extended grain fill; and stronger stalks result in less lodging for a more efficient harvest and less potential for volunteer corn the following season.

Quilt Xcel is a component of the Syngenta water optimization portfolio, along with Agrisure Artesian™ drought-tolerant trait technology. New Syngenta videos outline the benefits of Quilt Xcel in both corn and soybeans.

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