Links:
Wisconsin Agri-Service Association
Wisconsin Crop Production Association
WI Potato & Vegetable Growers Assn
WI Fertilizer & Chemical Association
Organic Trade Association (OTA)

AGRONOMY

Calcium fertilizers were one of the first to be widely used. The Greeks and Romans were aware of their attributes. Their use guarantees an adequate supply of calcium to plants and stabilizes the pH value of the soil. These characteristics make calcium carbonate an important fertilizer for the agriculture and forestry sectors.

Crops - Calcium is the single most important mineral needed for plant, soil and animal nutrition by weight and by volume. Calcium carbonate increases the availability of nitrogen, phosphorous, sulfur, and molybdenum for plant usages. It also reduces the potential for toxic effects on iron, zinc, manganese, aluminum and hydrogen to crop plants. Another factor is the improvement to soil structure.

Lawn & Garden - Calcium and/or gypsum improves fertilizer nutrient efficiency by as much as 50% or more, and boosts the effectiveness of certain herbicides. Calcium can be applied before, during and after any growing season. It is truly a product for all seasons and for all plants grown on acid soils.

Field Marker - Athletic Field Marker is safe, virtually pure calcium carbonate, which will not cause dangerous chemical burns. It is whiter and brighter than "chalky white" for a clearly marked and highlighted field. The fine particle size spreads easier and gives you more for your money.