Comparison of Pelletized and Agricultural Lime for Effect on Soil pH and Forage Yield
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Keaton, *M.D., Ballantyne, P., Espinoza, L., Jennings, J.A., Simon, K.J.
![Comparison of Pelletized and Agricultural Lime for Effect on Soil pH and Forage Yield Keaton, *M.D.¹, Ballantyne, P.², Espinoza, L.³, Jennings, J.A.³, Simon, K.J.² ¹ Extension Agent, Arkansas Cooperative Extension, Baxter County, Mountain Home, AR 72653 ² Extension Program Associate, Arkansas Cooperative Extension, State Office, Little Rock, AR 72203 ³ Extension Specialist, Arkansas Cooperative Extension, State Office, Little Rock, AR 72203 BOONE BENTON CARROLL BAXTER FULTON RANDOLPH CLAY MARION GREENE SHARP IZARD LAWRENCE MADISON WASHINGTON NEWTON SEARCY CRAIGHEAD MISSISSIPPI STONE INDEPENDENCE CRAWFORD POINSETT JOHNSON CLEBURNE VAN BUREN JACKSON FRANKLIN POPE CRITTENDEN CONWAY WOODRUFF CROSS SEBASTIAN LOGAN WHITE FAULKNER YELL ST. FRANCIS PERRY SCOTT LEE PULASKI PRAIRIE LONOKE MONROE SALINE GARLAND MONTGOMERY POLK PHILLIPS ARKANSAS HOT SPRING JEFFERSON GRANT HOWARD PIKE SEVIER CLARK DALLAS LINCOLN CLEVELAND DESHA HEMPSTEAD LITTLE RIVER NEVADA DREW CALHOUN BRADLEY OUACHITA MILLER CHICOT ASHLEY UNION COLUMBIA LAFAYETTE Results Abstract Cost and application are major considerations when applying agricultural limestone to increase soil pH in pastures and hay fields. Pelletized limestone is being marketed with claims of increased effectiveness and longer pH response with lower application rates compared to agricultural lime. However, data are unavailable for effect of pelletized lime on forages. This demonstration project was conducted in Baxter County, Arkansas to determine the effectiveness of pelletized lime compared to agricultural lime when surface applied to bermuda pasture. On May 25, 2007 pelletized lime was applied at 500 and 1000 lbs/acre and agricultural lime was applied at 0, 1000, 2000, 4000, and 6000 lbs/acre. From the soil test pH values at six months and twelve months since applying lime, the pelletized lime at low or medium rates was not better than agricultural lime. Objective This demonstration project was conducted in Baxter County, Arkansas to determine the effectiveness of pelletized lime compared to agricultural lime when surface applied to bermuda pasture. Procedure ,[object Object]](https://image.slidesharecdn.com/09comppelletizedaglimeposter-091217151933-phpapp01/85/comparison-of-pelletized-and-agricultural-lime-for-effect-on-soil-ph-and-forage-yield-1-320.jpg)
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Comparison of Pelletized and Agricultural Lime for Effect on Soil pH and Forage Yield
- 2. Fertilizer was applied according to University of Arkansas soil test recommendations.
- 3. First application of fertilizer for the season was applied in May and then reapplied after each harvest.
- 4. The rate of fertilizer applied was 68 lbs. of nitrogen and 75 lbs. of potassium.
- 5. Pelletized lime was applied on May 25, 2007 at 500 and 1,000 pounds per acre rate and agricultural lime was applied at 0, 1000, 2000, 4000 and 6000 pounds per acre rate.
- 6. Agricultural lime used had an effective calcium carbonate equivalent (ECCE) (CCE x fineness factor) of 960-1080 lb/ton and the ECCE of the pelletized lime of 1,700 lb/ton.
- 7. Average dry matter yield for 2008 is from two harvest yields and 2009 is from three harvest yields.
- 9. Only the agricultural lime rates of 4000 and 6000 lbs. per acre were statistically different from the control for soil pH.
- 10. There was no statistical difference among treatments for yield.Dry Matter Yield (lb/ac)