Home Crop Monitoring The links between compaction, tire pressure, and soil texture

The links between compaction, tire pressure, and soil texture


One concern this spring is whether or not or not there’s sufficient moisture to get a crop going, however a typical spring-time concern is that of compaction. Compaction is a threat each time you drive on a discipline, however the severity of compaction relies on the place soil moisture is within the soil profile.

“You can’t compact a soil if it’s actually got enough strength to withstand that pressure that’s been put on it,” says Marla Riekman, soil administration specialist at Manitoba Agriculture and Useful resource Growth, in a current RealAg LIVE. “It’s when your soil is moist down below that that pressure can actually allow those soil particles to push against each other.”

For those who’re coping with a dangerous scenario — when there’s moisture and when the large pore areas in soil will collapse — you wish to concentrate on having your tractor performing optimally, says Riekman. Utilizing duals and the suitable tire strain (which is kind of a bit decrease than street pace can be) permits the tire to stretch out width-wise and length-wise, spreading the strain down over a bigger space.

“If your duals are run at their rated pressure they should be compacting no more than a track would,” says Riekman. Conserving axel hundreds as little as attainable can mitigate compaction too, provides Riekman.

Deeper compaction that occurs with the load of apparatus drives compaction deep into the soil profile, and long-term, 10 to fifteen years down the street, that compaction won’t come out, says Riekman. Analysis suggests a ten per cent yield loss in areas with deep compaction.

Riekman suggests parking the tractor on a flat concrete pad, and in the event you can stick a fingernail beneath the sting of tread, you have to let air out (with the caveat that she is certainly not an ag engineer).

However how does soil texture play into compaction?

Soil texture is made up of the chances of sand, silt, and clay (keep in mind that texture triangle). Soil construction is the association of these sand, silt, or clay particles that turn into a unit referred to as an combination. There are networks of aggregates with pore areas between, that get fashioned over time with plant root development, animal burrowing, or human exercise. Texture and the mixture community impacts the scale of pore areas for water and air infiltration.

“Clay soils typically have a better ability to compress or compact,” says Riekman. “This is due to a couple of reasons. When you think of clay particles when wet, they can slide around more. Clay soils already have the small pore spaces there, but it’s the large pore spaces that are crushed when compaction happens.”

The massive pore areas are additionally the place water would move in a clay soil, so as soon as they’re gone, the water can’t filter by means of the soil correctly.

Sandier soils, then again, don’t have the power to shrink and swell like a clay soil does, so a sandier soil can’t crack naturally and alleviate compaction. The first time that Riekman really useful subsoiling to assist with compaction was in a sandier soil.


Watch the total dialog with Riekman and RealAg LIVE host Kara Oosterhuis right here!


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