土壤

• Bacteria and fungi are other important soil organisms .
  细菌和真菌是另一类重要的土壤有机体。
• Such addition of earthworms to soil seems particularly promising .
  将蚯蚓引入这种土壤特别有效。
• The soil will spontaneously absorb water from the reference state .
  土壤会由参考状态自动吸附水。
• Fruit trees will not tolerate wet soils during the growing season .
  在生长季，果树不耐土壤过湿。
• Colloids contribute to the character of the soil in other ways .
  胶质体对土壤的其它性状也有影响。
• All trees in any one row are in the soil at the same elevation .
  每行树都栽于同一水平线的土壤中。
• Minimum zinc solubility is in the ph range 6. 0 to 8. 0 .
  土壤PH值为60-80时，锌的溶解度最小。
• Farmers rotate their crops so that the soil will remain fertile .
  为保持土壤肥力，农民搞作物轮作。
• The effect of erosion varies with soil type and depth .
  侵蚀的影响因土壤的类型和深度的不同而不同。
• Small voids and openings occur between grains of soil .
  在土壤颗粒之间就有着许多微小的空隙和洞隙。