California Ammonia (CALAMCO) is a successful grower-owned cooperative based in Stockton, CA, with over 900 grower-members and fertilizer dealers. Since its establishment in 1957, CALAMCO has provided its shareholders with reliable and cost-effective nitrogen-based fertilizers, making it a trusted partner in the agricultural industry.
Founded by Lowell W. Berry, CALAMCO emerged as a joint venture between The Best Fertilizers Co. and a group of California farmers. With a rich history dating back to 1932, CALAMCO has been dedicated to manufacturing and selling high-quality fertilizers, ensuring a steady supply for its members and contributing to their long-term success.
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