There are three main types synthetic soilconditioner available, derived from petroleum chemicals, the Tertiary period minerals and organic materials.
人工合成土壤结构改良剂可分为石油化工产品、第三纪矿物产品以及无机物与有机物相结合产品共三类。
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Ideally this should be spread on land as an organic fertiliser and soilconditioner, however great care will be required to ensure that this does not become a further source of soil contamination.