泥苔藓是许多土壤混合物的主要成份。
以相等的时间间隔，打开瓶子，将瓶内的沙土换成土壤和水混合物。
At regular intervals, a bottle is dug up, and the sand-seed mix is transferred into a shallow tray of soil and watered.
堆肥腐烂有机体的混合物，如树叶或粪便，用来改善土壤结构并增加土壤养分。
A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients.
干电池基本上是由镉、铅、汞制成的，这种混合物是有毒的，如果泄漏到土壤或水源中，就会导致致命的污染。
Disposable batteries typically contain a cocktail of cadmium, lead and mercury. This mixture is toxic and, when leaked out into soil and into water supplies, causes deadly pollution.
可见，土壤是石粒和曾经是活体的物质的混合物。表土中这种曾是活体的东西叫做“腐殖质”。
SO the topSOil is bits of rock mixed with things that are once alive. These things in the topSOil that were once alive are called humus.
土壤添加剂是一种有机、无机营养混合物，是防治作物病害的一项重要措施，国内外对此均有研究报道。
Soil amendment is a mixture of organic and inorganic nutrition, which is an important management to control plant diseases. The studies of soil amendment have been reported in abroad and China.
土壤添加剂是一种有机、无机营养混合物，是防治作物病害的一项重要措施，国内外对此均有研究报道。
Soil amendment is a mixture of organic and inorganic nutrition, which is an important management to control plant diseases. The studies of soil amendment have been reported in abroad and China.
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