Home Crop Monitoring Soybean School: Wet feet worries

Soybean School: Wet feet worries

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Super rains in Ontario this yr, with extra on the way in which, have resulted in “wet feet” for some soybean fields. When moist situations persist, the soybean crop will begin to wrestle.

To clarify the science behind moist feet, Dr. Dave Hooker, subject crop agronomist and affiliate professor at College of Guelph, joins Bernard Tobin for this Soybean College episode.

“The roots need oxygen to respire, and respiration is needed to produce that energy that makes the plant grow, makes the root grow,” says Hooker. “When those air-filled spaces are taken up in the soil we called it air-filled porosity, because when that is very low because of too much water, the plant can’t get enough oxygen to complete that respiration process.”

So how a lot water is an excessive amount of?

Hooker says it relies on the soil kind, construction, or crop rotation or historical past. About 15 per cent of soil pores should be full of air, if water fills these pore areas for too lengthy, a pair days for instance, that’s when crops will endure some stress, which will also be exacerbated by hotter temperatures.

For soybeans, nitrogen fixation will even halt, as a result of to learn the plant, the roots want oxygen to deliver that nitrogen up by means of the plant. Proper off the bat, roots will senesce and die off, provides Hooker.

Take a look at the complete video of Hooker and Tobin within the subject on the Ridgetown Campus beneath:

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