Profile Distribution of Nonexchangeable Mg in the <1µ Clay in Seven Loess-Derived Soils
1968
Protz, R. | Riecken, F. F.
The nonexchangeable Mg content of the <1µ clay in seven loess-derived soils representing a wide range of soil development decreases with depth. A direct relationship exists between the nonexchangeable Mg content of the <1µ clay and exchangeable Mg/g of <2µ clay. An inverse relationship is present between nonexchangeable Mg in the <1µ clay and exchangeable H/g of <2µ clay. The montmorillonite/kaolinite ratio increases sharply with depth to 50 cm, below which the ratio remains constant. It is concluded that Mg has not been built into the clay fraction during soil profile development.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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