Make a Biological Dethatcher for Lawns
Thatch is a problem that many people who have lawns face, because it can be caused anytime the ecosystem of a lawn experiences an imbalance. Mowing a lawn too short, over-fertilizing, compaction of the soil or a buildup of organic materials along the root line of grass can cause grass roots to grow upward into the organic material, leading to thatch. You can eliminate thatch by encouraging the microbes in your soil to eat the organic material layer, as well as aerating compact soil to encourage roots to grown down into the soil.
Instructions
1. Spread a 50-pound bag of gypsum per every 1,000 square feet of your lawn with a granulated spreader. Comb the gypsum into your soil with a leaf rake. Gypsum helps improve the aeration of your soil.
2. Mix plain yogurt with active cultures and water until achieving a consistency that can be used in a liquid sprayer and apply to your lawn. Yogurt with active cultures contains lactobacillus bacteria, which can break down the organic layer in the thatch.
3. Distribute baking sugar over your lawn using a granulated spreader. Then water thoroughly with a garden hose and sprinkler to dissolve the sugar. The lactobacillus bacteria will feed on the sugar and multiply so that it will break down the thatch faster.
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