The impact of raindrops on the loose soil tends to transfer fine clay particles into the tiniest soil spaces, sealing them and producing a surface that allows very little waterpenetration.
This mixture of grasses and yarrow will out - compete the resident weed population, increase waterpenetration, and improve the microflora and organic matter in our soils.
牧草和蓍草混合可以减少杂草的数量,增加水的穿透能力,改善土壤的微生物和有机物质。
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We have prepared many different polyacids, studied factors affecting the properties of these materials, and evaluated the property ofwater resistance and X-ray penetrationof these materials.