Back to Earth Composted Cotton Burrs consists of our unmatched Composted Cotton Burrs, screened with a coarse screen or a fine screen to fit any need you have. This makes BTE Composted Cotton Burrs an ideal general- purpose mulch for amending clay or sandy soils. This product is available with elemental sulfur to help neutralize high pH soils. This product contains no chemicals, weeds, insects, or harmful pathogens. Soils low in organic matter and humus or with poor tilth and structure cannot be rejuvenated with chemical fertilizers. Back to Earth compost can quickly start improvement of such soils, since it begins to function immediately, restoring vital organic matter and humus to soils, regardless of soil conditions.