fertility of soil

肥力  detail>>

soil fertility

土壤肥力  detail>>

the fertility of the soil

土地的肥沃  detail>>

artificial fertility of soil

人工地力  detail>>

characteristics of soil fertility

土壤肥力特征  detail>>

common soil fertility

普通土壤肥力  detail>>

conserving soil fertility

保持土壤肥力  detail>>

croof depleting soil fertility

耗地作物  detail>>

gradational difference of soil fertility

土壤肥力级差  detail>>

improvement of soil fertility

土壤培肥  detail>>

increasing of soil fertility

提高土壤肥力  detail>>

inexhaustible fertility of soil

无穷的土壤肥力  detail>>

law of diminishing fertility of soil

土壤肥力递减律  detail>>

maintenance of soil fertility

土壤肥力维持 维持土壤肥力  detail>>

natural soil fertility

自然地力  detail>>

potential fertility of soil

潜在土壤肥力  detail>>

soil fertility component

地力组成因素  detail>>