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Illinois Fertilizer Conference Proceedings
January 27-29, 1992

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Table 2: Effect of lime sources and rate on soil pH in the pre-existing liming materials field studyspacer

    Sample Date
Lime Before Application* Fall
1986		 Fall
1987		 Fall
1988		 Fall
1989
Material CCE/acre Soil pH**
Control None 4.6 4.5 4.1 4.4 4.4
Pelletized 500 lb 4.5 4.4 4.2 4.4 4.3
Pelletized 1000 lb 4.6 4.5 4.4 4.6 4.5
Powdered 1000 lb 4.6 4.4 4.4 4.6 4.5
Powdered 3.25 ton 4.6 5.6 5.9 6.4 6.1
Powdered 4.75 ton 4.6 6.2 6.8 7.0 7.1
Quarry lime 6.5 ton 4.5 4.9 5.8 6.3 6.5
Quarry lime 9.5 ton 4.5 5.3 5.9 6.5 6.7
FLSD(0.05)   NS 0.2 0.4 0.4 0.3

*Lime application date was August 20,1985

**Sample depth of 0-6"

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