Phosphorus and potassium in the pedogenesis of Estonian soils
1997
Kask, R. | Niine, H. (Estonian Agricultural Univ., Tartu (Estonia))
The special characteristics of the phosphorus and potassium content and its vertical differentiation in soil is generally connected with the typological units of the soils. With the increasing degradation of mineral ingredients in the soils and with the peaty formation of the soils becoming marshy in the native process of evolution the total content of phosphorus and potassium and their supply in the soil decreases. In order to keep the content of phosphorus and potassium optimal in the soil of cultivable land we must fertilize among the others the loss of phosphorus and potassium in connection with the degradation of mineral ingredients of the soil
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