2 词条
主页 > 产品类别 > 地球科学 > Soil science
Soil science
That science dealing with soils as a natural resource on the surface of the earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils per se; and these properties in relation to the use and management of soils.
土壤学的贡献者
Soil science
mollic epipedon
地球科学; 土壤学
是黑暗的矿物土的表面地平线带有颜色和相对较厚，包含至少 5。8 g 公斤 1organic 碳，不大规模和硬或很难干燥时，有基本饱和的 > 50 %ph 值 7，测量时已 < P 110 毫克公斤-1soluble 0 中。05 M 柠檬酸，主要饱和的二价阳离子和。 ...
