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Soil plug visual analysis

232 Views 5 Replies 5 Participants Last post by  tommydearest
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I used my Proplugger to pull a plug. Wanted to check a few thing. Root length, thatch level, and moisture.

First, am I correct that there doesn’t appear to be much thatch here?
Second, can moisture be judged correctly from a plug? I watered about an inch on Monday. I thought the soil would start to dry out from the top down. But it’s almost seems like it’s drying from the bottom up. The bottom of this sample seems to be the only part that looks slightly dry. I thought by Friday I’d have to water again because we’ve had no rain.
Please excuse the bird poop. They love my porch.

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I don't see much thatch, but I can always tell better by feel. Thatch has a rubbery bounce back to it when squeezed, where soil tends to stay compressed. As far as the water issue, it looks to me like the bottom of your plug might be the start of a transition to a sandy layer and therefore just doesn't have the holding capacity that the rest of the plug does. I would hold off on watering until you start to see that dry look-- blue tinge, slight wilt.
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Another thought - I grow some grass in pots and the pots have a saucer reservoir at the bottom (self watering). I find that my grass will suck that water up much faster than evaporative loss would.
It might not be getting enough water. Check again a couple of days after a long steady rain period of 1” or more. How many plugs did you pull? Does all of them have the same moisture/dryness?
It might not be getting enough water. Check again a couple of days after a long steady rain period of 1” or more. How many plugs did you pull? Does all of them have the same moisture/dryness?
What makes you think that? I was just surprised that it still seemed moist, the whole way through, 3 days after watering. I assumed the top of the plug would be dry and it would still be moist towards the bottom. It was moist all the way to about 7" and just started to dry near the bottom. Although, @Grizzly Adam made a great point about it just might be the start of a different layer of sandier soil.
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