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  Data Sheet

USG® 500 Landplaster

A Superior Source of Calcium and Sulfur for Peanut Production

USG 500 Landplaster is a pure, natural gypsum that delivers the critical performance and application features needed to ensure high-quality, high-yielding peanut crops. Specifically, the product:
  • Delivers exceptionally high calcium and sulfur content to guarantee best-possible seed quality and germination rates.
  • Is manufactured in variable particle sizes to ensure consistent nutrition from initial pegging through maturity.
  • Is 150 times more soluble than limestone, enabling pods to easily absorb calcium and minimizing yield-reducing problems such as pops, rot and darkened plumules.
  • Offers superior flow and spreadability.
  • Does not adversely affect soil pH – a critical consideration when soil is in the optimal range for peanut growth.
  • Improves soil structure by minimizing surface crusting.
  • Aids water penetration and aeration.
  • Is non-toxic and ecologically safe.
Description USG 500 Landplaster is a natural, high-purity gypsum ideal for a wide range of agricultural uses. The crystal surface and shape help to improve flowability and contribute to faster calcium release. USG 500 Landplaster is sold in bulk, with a particle size distribution from approximately ¼” to dust. The smaller, finer particles are readily dissolved and absorbed by the pod, while the larger particles dissolve more slowly, supplying crops with calcium and sulfur in a “time release” fashion throughout the growing season.

Naturally Productive The benefits of using natural gypsum products as a source of calcium and sulfur for peanut production have been extensively tested and documented. Pegs and pods treated with gypsum are assured an evenly distributed, highly soluble calcium source. Natural gypsum produces healthier crop yields and significantly less pod rot and pops than crops treated with alternatives, such as limestone.

Highly Profitable USG 500 Landplaster is produced with great care and attention to the features that make it a proven value to peanut producers. Though the product is more costly than many competing products, it offers a superior combination of calcium content, solubility and distribution efficiency that makes it a highly productive – and profitable – business decision for peanut farmers.

Business and Land Management Benefits The product offers a range of application, labor, equipment and land management benefits, including:
  • Reduced Material Usage – BEN FRANKLIN USG 500 Landplaster contains higher levels of calcium than many competing products. This fact, combined with the product’s superior flow, eliminates the need to over-compensate when spreading and means that less material is required to meet critical peanut production requirements.
  • Consistent Speadability for Higher Crop Production – The product flows and spreads more easily than competing products, ensuring consistent, even distribution. Seeding problems, such as pops and darkened plumules that may result from uneven distribution and localized calcium deficiencies are minimized. Crop productivity is maximized.
  • Outdoor Storage – When stored outdoors, the product’s spreading characteristics are not adversely affected. Even when exposed directly to moisture, it does not “clump” and remains readily spreadable.
  • Reduced Time, Fuel; Minimized Crop Damage – Because each load of USG 500 Landplaster covers more acreage, fewer trips into the field are required. This translates into savings in time, labor, and fuel costs. It also reduces the potential for crop damage and soil compaction.
  • Reduced Labor; Fewer Injury and Liability Risks – The even flow of USG 500 Landplaster reduces or eliminates the need for an extra laborer in the back of the equipment, thereby minimizing the risk for injury and the associated liabilities.
  • Improved Soil Structure – Surface crusting is minimized and water penetration and aeration are improved.
  • Reduced Equipment Maintenance – USG 500 Landplaster is non-toxic, ecologically safe and will not corrode equipment.
Physical Properties (Bulk) Chemistry
CaSO4
Ca
S
pH
Minimum Guarantee
70%
21%
17%
7.3 (approx.)
Typical Screen Analysis Particle Size Range (Mesh)
+4
-4 + 20
-20 +100
-100
Approximate Percent
6.75%
57.5%
23.25%
12.5%
Density Loose: 82
Packed: 94


Application USG 500 Landplaster is applied by broadcast spreader. The farthest reach of the spreader defines truck paths and subsequent passes to assure even distribution and proper overlap. The product can be applied any time after planting, but best results are achieved just prior to bloom. Variations in the gypsum particle size ensure consistent calcium delivery throughout pegging and fruiting. Contact your local county extension agent or your USG sales representative for specific application recommendations based on local conditions.

Product Availability USG 500 Landplaster is sold in bulk at Elizabeth River Terminals, Chesapeake, Va. and Marine Port Terminals, Brunswick, Ga. Please consult our current year price and policy for contact information and hours of operation.

USG: The Leader in Agricultural Gypsum Products USG 500 Landplaster is offered by United States Gypsum Company, the nation’s leading supplier of natural agricultural gypsum products. USG has been meeting the needs of peanut growers for more than 50 years.


Trademarks
The following trademarks used herein are owned by United States Gypsum Company or a related company: USG.

Notice
We shall not be liable for incidental and consequential damages, directory or indirectly sustained, nor for any loss caused by application of these goods not in accordance with current printed instructions or for other than the intended use. Our liability is expressly limited to replacement of defective goods. Any claim shall be deemed waived unless made in writing to us within thirty (30) days from date it was or reasonably should have been discovered.

Safety First
Follow good safety and industrial hygiene practices during handling and installing of all products and systems. Take necessary precautions and wear the appropriate personal protective equipment as needed. Read material safety data sheets and related literature on products before specification and/or installation.

United States Gypsum Company
Industrial Products Division
125 S. Franklin Street
P.O. Box 806278
Chicago, IL 60680-4124
A Subsidiary of USG Corporation

800.487.4431
Direct Line: 312.606.5380
www.gypsumsolutions.com
Email: industrial@usg.com



© 2002, United States Gypsum Company
Printed in U.S.A.