Equipment for acquiring soil core: a slide hammer rod screws into drive head , b slide hammer, c caps for retaining soil in the plastic liner tube, d plastic liner tube, e rod for removing core slides through hole in drive head , f pin to attach d. Soil cores are acquired using a steel corer lined with a plastic tube that is pounded into the soil. Several accessories are also necessary Fig. If longer steel tubes are used, additional plastic liners must be inserted as spacers. Soil corers may be pounded into the soil using a slide hammer Fig. We have found the sledge hammer to be more practical than the slide hammer for use with the cm tubes. Drive heads without holes for the slide hammer rod can be purchased for use with a sledge hammer. Depending on the soil characteristics, pounding in the soil core can be quite difficult and irrigation is recommended, when possible, if working with very dry soils.
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