BEN FRANKLIN. Agricultural Gypsum. 420 Landplaster Regular Fine Grind. The High-Purity, Readily Available Source of Calcium and Sulfur for Peanuts

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1 BEN FRANKLIN Agricultural Gypsum 420 Landplaster Regular Fine Grind The High-Purity, Readily Available Source of Calcium and Sulfur for Peanuts

2 Gypsum is a proven, safe source of calcium and sulfur that helps peanuts growers produce high-quality, high-yielding crops. Field research shows that peanuts must have an abundant supply of available calcium in the fruiting zone when the pods and kernels are forming. Without the needed calcium, pods do not fill and yields are low. Calcium is also a critical nutrient for seed peanuts. A natural supplement, BEN FRANKLIN Agricultural Gypsum is made from quarried anhydrite and gypsum rock, which is crushed to convenient sizes for agricultural use. Anhydrite (CaSO 4 ) is a high-purity form of gypsum that lacks the two water molecules of regular gypsum (CaSO 4 2H 2 O). These high-purity products bagged, fine-grind BEN FRANKLIN Agricultural Gypsum and bulk multisized BEN FRANKLIN 420 Landplaster, are both from United States Gypsum Company at Norfolk, VA. Why Peanuts Need Gypsum The importance of calcium sulfate as supplied by agricultural gypsum or landplaster in improving peanut yield and quality has been demonstrated over the past 50 years by both growers and researchers. Testing and documentation from the Virginia and North Carolina Extension Services conclusively support the relationship between the amount of soluble calcium in the pegging zone and the incidence of loss from peanut peg and pod breakdown. High solubility is essential for effective calcium supplementation. Pegs and pods treated with a soluble calcium source, such as gypsum or anhydrite, have significantly less pod rot than those untreated, or from plots treated with limestone or similar materials. Hence, the higher the calcium in pegs and pods, the less pod rot and more plant yield. Copyright 2002, United States Gypsum Company

3 Benefits of BEN FRANKLIN Agricultural Gypsum Supplies readily available calcium and sulfate sulfur without significantly affecting soil ph at normal application rates. Promotes high seed quality. Ensures that the seed peanut contains 450 ppm calcium needed for proper germination. Improves soil structure, eliminates surface crusting and aids water penetration and aeration. Decreases pod rot damage and pops while increasing plant yield. Handles and applies easily and conveniently. Allows easy spreading without clogging machinery. Is non-toxic, ecologically safe and does not corrode equipment. Is 150 times more soluble than limestone. Requires fewer passes over the field for less plant damage and minimal soil compaction. Choose from multisized BEN FRANKLIN 420 Landplaster or fine-grind BEN FRANKLIN Agricultural Gypsum. BEN FRANKLIN 420 Landplaster, multisized, is made available in bulk and applied by broadcast spreading. Multisizing provides timerelease properties. The smaller gypsum particles are readily dissolved and absorbed by the pod, while the larger particles dissolve more slowly, supplying calcium and sulfur throughout the growing season. BEN FRANKLIN Agricultural Gypsum, fine-grind, is sold in bags and applied by banding, allowing the grower more control over the amount and placement of gypsum. Dissolved calcium from the fine particles goes immediately to the pegging zone.

4 Product Characteristics Chemistry Minimum Guarantee CaSO 4 85% Ca (elemental equivalent) 25% S (elemental equivalent) 20% ph Landplaster Bulk Typical Screen Analysis Particle Size Range Approximate % % -4 to % -20 to % % Density: Loose 78 Packed 95 Fine-Grind Bagged Typical Screen Analysis: approximately 75% through 100 mesh. Density: Loose 75 Packed 85 Recommended Application Time BEN FrANKLIN 420 Landplaster can be applied during early plant development. Hightest efficiency is just prior to bloom. See your county agent for application rates and methods recommended for local conditions. Other Uses: potatoes spinach apples strawberries tomatoes blueberries

5 BEN FRANKLIN Gypsum Fast, Economical Application Ben Franklin Agricultural Gypsum Fine Grind Availability: Bagged Rate: 600 lbs./acre* Application Method: Band inches over the row ideal for controlling distribution of particles with minimum dusting. 420 Landplaster Coarse, Multisized Availability: Bulk Rate: 900 lbs./acre* Application Method: Broadcast farthest reach of spreader should define the truck path for each subsequent pass to assure even distribution and proper overlap. *Rates based on average application for Virginia-type peanuts. Contact your county agent about local conditions and recommended rates of application.

6 Ask your dealer for bulk BEN FRANKLIN 420 Landplaster or bagged BEN FRANKLIN Agricultural Gypsum. or Call (800) or us at if you wish to have a United States Gypsum sales representative contact you. United States Gypsum Company. Industrial Gypsum Division 125 South Franklin Ave. Chicago, Illinois IG235/12-02