View cart “Straw Matting” has been added to your cart. $15.00 Rapidly and efficiently raises soil pH. Calcium and humates balance soil pH and stimulate microbial life. Encourages nutrient absorption. 4.5-pound bag covers 1,500ft2. Lbs Choose an option3.6Clear Mag-I-Cal quantity Add to cart SKU: N/A Category: Fertilizer and Supplies Related products Green Up 12-18-8 $16.00 Select options Tupersan $156.00 Select options 20-2-10 $47.00 Select options 13-0-5 (Prodamine with Barricade) $46.00 Select options