Definition of diastereomer. : a stereoisomer of a compound having two or more chiral centers that is not a mirror image of another stereoisomer of the same compound â compare enantiomer.
Most perennial weeds such as Johnsongrass. are also suppressed although vigorous plants or heavy in-. festations may lift plastic. Perennial sedges, and to a lesser. extent, grasses can puncture sheet mulches as the weeds. emerge from the soil, resulting in inadequate control.
HardieBacker cement board was made to be easier to work with so that regardless of how you cut your board, the result is less debris. To make installation simpler, the 1/4 in. x 3 ft. x 5 ft. sheets have James Hardie's exclusive EZ Grid recessed fastener pattern to help with nail and screw placement.