Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate |
Common terms and phrases
25 pounds P2O5 amount of phosphorus available to plants Beltsville Bray method Ca++ activity CaCO3-H2O system calcareous soils calcite calcium phosphates carbon black CO2 method common ion effect Correlation coefficient Corvallis crop response exchanges with P32 extractable phosphorus extracting solution field and greenhouse field experiments forms of phosphorus Fort Collins greenhouse experiments groups of soils H+ activity HCO3 ions loam maximum yield Millville molar NaHCO3 solution NaHCO3 extracts NaHCO3 method NaHCO3-soluble phosphorus Number of soils P₂O₃ per acre P2O5 per acre percentage of maximum percentage of soils pH values phate phorus phosphate solubility phosphate-fertility level Phosphorus pounds P2O5 phosphorus soluble plant available phosphorus pounds of P2O5 pounds P₂O₃ predicting ratio relationship responded to phosphate secondary precipitation reactions soil particles soil pH soil tests soil types soils responded soils showing solid phase CaCO3 solubility of phosphorus soluble in NaHCO3 standard error surface of soil Thirty soil samples tions Truog yield response