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How to “clean” soil of seedbank to use for greenhouse experiment after? via /r/Soil

How to “clean” soil of seedbank to use for greenhouse experiment after?

Hello!

I am intending to harvest some disturbed soil (from construction) for a greenhouse experiment for my thesis. Per NCRS, they are Patrick soils, 1 to 3 percent slopes, rarely flooded. I will need to harvest probably about 30 gallons of this disturbed soil, which will then be used to grow plants in. I’ve been warned that the existing seed bank may grow and affect my experiment. A professor recommended I use a floatation method to separate the seeds/organic matter from the soil… but every method I’ve found contains salt. Do y’all have any recommendations for separating the seed bank from the soil without ruining the soil?

Thanks in advance!

Submitted October 11, 2019 at 06:45PM by sgorto
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