Surface Applied Lime Impacts on North Dakota No-till Soils
Applied Research
Chris Augustin
Dickinson Research Extension Center Director
Dickinson
Abstract
Nitrogen (N) fertilizers acidify the soil due to nitrification. No-till soils are particularly susceptible to acidification from the lack of mixing of subsurface alkaline products and the tendency to apply N fertilizers at or near the soil surface. As a result, the zone of acidification is typically in the area of fertilizer placement. Calcium-carbonate is a common soil amendment that neutralizes soil acidity. Sugarbeet waste lime, is a by-product of the sugar refinement process and contains approximately 75% calcium-carbonate and phosphorus. Sugarbeet waste lime is readily available to North Dakota producers for use. Sugarbeet waste lime was applied at 0, 2, 4, 8, and 16 tons of calcium-carbonate/acre. All treatments improved soil pH (p-value <0.001) at the 0-3 in depth and reduced soil extractable aluminum (p-value <0.001). Regression analysis divided by the soil buffer pH at the 0-3 in depth produced several statistically significant equations (p-value <0.05). The equations can be used by producers to improve an acid soil pH to a desirable level. Sugarbeet waste lime treatments increased the fall Olsen phosphorus test and decreases both soil extractable aluminum and manganese (p-value < 0.001).
Poster has NOT been presented at any previous NACAA AM/PIC
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Authors: Chris Augustin, Ryan Buetow, Leo Bortolon, Kurt Froelich, Renae Gress, Penny Nester, Jim Staricka, Ashley Ueckert
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Augustin, C. Dickinson Research Extension Center Director, NDSU Dickinson Research Extension Center, North Dakota, 58601
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Buetow, R. Extension Cropping Systems Specialist, NDSU Dickinson Resaerch Extension Center, North Dakota, 58601
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Bortolon, L. Extension Cropping System Specialist, NDSU North Central Research Extension Center, North Dakota, 58701
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Froelich, K. Extension Agent, NDSU Extension, North Dakota, 58601
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Gress, R. Extension Agent, NDSU Extension, North Dakota, 58554
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Nester, P. Extension Agent, NDSU Extension, North Dakota, 58623
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Staricka, J. Soil Scientist, NDSU Williston Research Extension Center, North Dakota, 58801
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Ueckert, A. Extension Agent, NDSU Extension, North Dakota, 58621