低耕农业在地面上留下许多或全部土壤，以及植物残体。
Low Till Agriculture leaves much or all the soil and remains of plants on the ground.
泥炭植物残体是泥炭和泥炭矿体的主要组分。
Plant residues are the main component of peat and its mineral bodies.
各种植物残体所形成的腐殖质，其性质基本相同。
Various kinds of humus derived from different plant residues are basically the same in nature.
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