[Content and mobiliti of phospates in a sod-podzolc loamy sand at the application of various phosporus-contaning fertilizer forms]
1998
Lapa, V.V. | Rybik, O.F. | Golovach, A.A. (Belarus Research Institute for Soil Science and Agrochemistry, Minsk (Belarus)
In a laborotory experiment on a sod-podzolic lamy sand was discoverred higher degree of phosphate mobility (according to Scofield) at the pH(kcl)5,2 and the soil moisture 60% from maximum water-holding capacity. At the lowering of acidity and sol moisture the phosphate mobility reduced. With the increase of an interfaction time of phosphorus-containg fertilizers with soil the phosphate mobility increases and reaches the maximum after 30-90 days and nights at the application of the forms with larger share of water soluble phosphorus - double superphosphate and ammophosphate, and after 90-180 days and nights at the application of sulfoammophosphate and low-temperature ammophosphate calcium
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