Effect of Type, Rate and Incorporation of Lime and of Nitrogen Fertilizer and Gypsum on Movement of Lime in Soil Columns

Abstract

Soil columns were used to study downward movement of calcite and dolomite applied at two rates on the soil surface or incorporated 0–5 cm deep in combinations with gypsum and surface-applied N fertilizer. The columns were irrigated with 800 mm of deionized water applied over 3 wk. Incorporation of the liming materials greatly accelerated their downward movement in soil. Calcite and dolomite were equally effective in raising soil pH at the lower depths. Neither gypsum nor fertilizer nor doubling the liming rate had much effect on lime movement. Key words: Lime movement, calcite, dolomite, gypsum

Techniques for Speeding the Movement of Lime Into an Orchard Soil

“…The more notable of these are to use acid-forming fertilizers (Pearson et al 1962), gypsum (Reeve and Sumner 1972;Pavan et al 1984) and high rates of lime (Brown et al 1956;McKenzie et al 1988). A preliminary experiment was conducted under laboratory conditions using these methods for accelerating lime movement into an orchard soil (Hoyt et al 1986). (Ross et al 1985).…”

“…For personal use only. (Hoyt et al 1986). That experiment, however, was conducted for only a 3-wk period and may reflect the short term, the results being somewhat similar to those for I yr after applying incorporated lime in the field (Table l).…”