I made a waist coat last year that had panels of seed stitch where both decreasing and increasing took place. This needs to be done carefully so that you don't end up with a "ridge" of all knit stitches or purl stitches. If you have to decrease at the beginning of the row you may have to change the first stitches so that the rest of the row is in the seed stitch pattern and if doing so at the end of the row the same thing.
usually seed stitch rows begin and end with the Knit stitch..so lets say a pattern calls for decreasing one stitch at the beginning and the end of a row...purl the first stitch, K the next 2 tog, continue the row then on the last 2 stitches k1,s1,psso, purl the last stitch. This way the decrease doesn't show or form a ridge.
usually seed stitch rows begin and end with the Knit stitch..so lets say a pattern calls for decreasing one stitch at the beginning and the end of a row...purl the first stitch, K the next 2 tog, continue the row then on the last 2 stitches k1,s1,psso, purl the last stitch. This way the decrease doesn't show or form a ridge.