Browse on keywords: soil quality nitrogen fertilizer
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1729. Douglas, C.L., R.R. Allmaras and N.C. Roager. 1984. Silicic acid and oxidizable carbon movement in a Walla Walla silt loam.. Soil Sci. Soc. Amer. J. 48:156-162.
Leachate concentrations and net transfers of silicic acid decreased as long term C additions and soil pH increased; liming reversed this; results in adverse physical properties below the plow layer - decreased hydraulic conductivity, increased cementation.
1987. Fireman, M.. 1945. Effect of sodium nitrate and ammonium fertilizers on the permeability of western soils.. .
Experiments on 51 western soils. Sodium nitrate reduced permeability 41-86%. Ammonium nitrate and ammonium sulfate also decreased permeability, but to a lesser extent. T; Permeability tests; variations in permeability.