土壤

• Soil compaction may limit horizontal root extension .
  土壤的紧密度能限制水平根的扩展。
• The organophosphates degrade fairly rapidly in soil .
  有机磷酸盐在土壤中降解十分迅速。
• Responsible soil management practices are cast aside .
  有效的土壤管理方法常被束之高阁。
• Peat moss is a major constituent of most soil mixes .
  泥苔藓是许多土壤混合物的主要成份。
• Soil erosion is a main contributor to water pollution .
  土壤侵蚀是水污染的一个主要根源。
• Additions of organic matter to soil hasten calcium losses .
  土壤增施有机质会促进钙的损失。
• A loose mulch acts on the surface as an insulator .
  疏松的覆盖物在土壤表面起了隔热的作用。
• The land was highly fertile, and the growing season was long .
  土壤非常肥沃，生长季节很长。
• Clay gives the soil body .
  粘土能使土壤板结。