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Supercal 98g calcium3/7/2023 ![]() Therefore, if the neutralizing value of pelletized lime is substantially higher than 67%, then the recommendation should be lower. All lime recommendations in Kentucky are based on this value. The finer the lime particles and the higher the calcium carbonate equivalent, the more effective the lime and the lower the rate of lime needed to make the desired pH change.īulk ag lime sold in Kentucky has an average neutralizing value of 67% when averaged for all quarries. As these two properties of lime change, so does the recommended rate of lime and its effect on soil pH. The recommended rates and the effect on soil pH of any agriculture lime product is related to the neutralizing value of the lime, which is a combination of the purity (calcium carbonate equivalent) and the fineness of grind (particle size). How Much Can the Rates be Reduced for Pelletized Lime? Some questions have been raised about recommended rates of this material and the speed at which it reacts compared to standard ag lime. However, the product is becoming more commonly used in production agriculture. The price of the material on a per ton basis is considerably higher than bulk ag lime, so its use has mainly been confined to specialty markets, with little use in production agriculture. Pelletized limestone is a product that has been on the market for many years. In general, the pelletized lime contains about 9% lignosulfonates. The fine lime particles are bonded together with lignosulfonates during the pelletizing process. It may be dolomitic or calcitic depending on the nature of the original limestone. Pelletized lime is made by granulating finely ground agricultural (ag) lime. Murdock which contradicts what I have always heard. I was checking into this a while backand came across this article by Lloyd W. Therfore on my small plots I have always used pelletized lime being I am always in a hurry and usually running late. ![]() CALCIUM PRODUCTS: THERE'S STILL TIME TO APPLY LIMEįor growers unable to apply lime last fall, a new generation of engineered lime products are a solution that can be applied year-round.I was told that pelletized lime is faster than ag lime to be utilized. Unlike standard ag lime, advanced soil amendment products such as SuperCal 98G provide fast and complete soil pH changes because of they contain extremely small lime particles (150 microns versus 590 microns for standard ag lime.) Engineered to have high reactivity, the products change soil pH within weeks and maintains soil pH changes in subsequent years. ![]() "This time of year, limestone quarries are either out of limestone or have frozen piles of ag lime which can't be accessed until the spring thaw," says Dr. Andrew Hoiberg, Director of Research and Development at Calcium Products. "In many locations, snow prevents lime applications. These are just a few complications from an unusual 2013 weather year that started with an extremely wet and late spring and ended with a late harvest. Cool fall soil temperatures caused many growers and dealers to choose anhydrous application over limestone application."Īccording to Hoiberg, applying more nitrogen fertilizer (the main source for acidity) and skipping limestone application is a recipe for lower yields. Soil pH of 5.7 can cost a grower an additional $200 per acre of income at today's prices, even more if the pH is lower.Ī University of Wisconsin study cites low pH as reducing yield up to 40%. As soil acidity is lowered, corrective measures to bring soils back to optimal conditions for crops are harder to achieve. Managing soil pH on a yearly basis is the most effective way to maintain optimal soil pH. "Ignoring one of the most important agronomic factors like pH correction will cause yields to suffer," says Hoiberg. "Growers have many inputs to balance, and pH is one issue that's often pushed to the back burner. Generally speaking, growers may decide to apply lime every three to five years. If conditions are not optimal for an application of ag lime, they usually wait until the next year. ![]() Growers should take a proactive approach to managing pH, as they do all other inputs for maximum yields." No other farm input is treated in this way. Heading into spring planting season, ag lime application ceases as dealers transition into fertilizer applications. There is an option to help growers increase soil pH and protect yields. "With our SuperCal 98G advanced engineered lime, growers can see soil pH improvement in weeks instead of years," says Hoiberg. ![]()
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