Calcium is often overlooked as a yield-building nutrient, yet it plays one of the most important roles in plant development. While nitrogen, phosphorus, and potassium drive growth, calcium builds the structural framework that allows crops to grow stronger roots, healthier leaves, larger fruit, and higher-quality harvests.
Cal 40 is a premium 40% calcium fertilizer derived from micronized calcium carbonate and enhanced with biologically active freshwater algae extract. Its low-salt, chloride-free, and nitrate-free formulation delivers highly available calcium while supporting plant biology, improving nutrient efficiency, strengthening soil health, and helping crops tolerate environmental stress throughout the growing season.
Designed for both foliar and fertigation applications, Cal 40 provides a modern approach to calcium nutrition for today's high-performance farming systems.
Calcium is much more than a secondary nutrient.
It is essential for nearly every stage of plant development, including:
Unlike nitrogen or potassium, calcium is relatively immobile within the plant. It must be supplied continuously during periods of active growth to support newly developing tissues.
Without adequate calcium, crops often experience poor root development, weak plant structure, reduced nutrient movement, lower fruit quality, and greater susceptibility to environmental stress.
Most liquid calcium products rely on calcium chloride or calcium nitrate as their calcium source.
While these products supply calcium, they also introduce chloride or nitrate into the crop.
Cal 40 takes a different approach.
Derived from micronized calcium carbonate, Cal 40 delivers concentrated calcium in a chloride-free, nitrate-free, low-salt formulation that supports plant health without contributing unnecessary chloride, excess nitrogen, or high fertilizer salt loads.
This makes Cal 40 an excellent choice for growers seeking high calcium nutrition while maintaining balanced fertility programs.
The performance of any calcium fertilizer depends on how effectively calcium reaches the plant.
Cal 40 utilizes micronized calcium carbonate with an ultra-fine particle size that remains suspended in solution and disperses evenly throughout the spray solution or irrigation water.
This increased surface area improves contact with plant tissues and the root zone while allowing calcium to remain more uniformly distributed throughout the application.
Combined with biologically active freshwater algae extract, Cal 40 helps maximize nutrient efficiency, support healthy plant biology, and improve calcium utilization throughout the crop cycle.
Calcium is the structural nutrient of the plant.
Cal 40 strengthens:
Stronger plant structure improves crop durability, supports healthy growth, and increases overall crop quality.
Healthy cell membranes are essential for nutrient movement.
Cal 40 supports nutrient efficiency by maintaining membrane integrity, improving nutrient transport, and enhancing the movement of water and essential nutrients throughout the plant.
Calcium plays an essential role in helping plants respond to environmental stress.
Cal 40 improves stress tolerance by supporting stronger cell walls, healthier root systems, improved water regulation, and greater resilience during drought, heat, salinity, and other challenging growing conditions.
Healthy crops begin with healthy soils.
Calcium is the dominant cation responsible for maintaining soil structure, improving aggregation, and supporting root development.
When properly managed, calcium contributes to improved:
Cal 40 provides an efficient source of calcium that supports both crop nutrition and healthy soil function.
High sodium and excessive fertilizer salts can reduce nutrient uptake, limit root growth, and negatively impact crop performance.
Calcium is widely recognized as one of the most effective nutrients for improving soil structure and helping manage sodium-affected soils.
As part of a comprehensive salinity management program, Cal 40 helps maintain calcium saturation within the root zone while supporting healthy root function and improving nutrient uptake efficiency.
When paired with Salinex 50, growers have a complete biological and nutritional strategy for improving soil conditions and supporting crop performance under saline growing conditions.
Cal 40 integrates seamlessly into the complete NutriPort nutritional system.
Together, these technologies create a complete row crop nutrition program that improves nutrient efficiency, strengthens plant biology, enhances stress tolerance, and supports healthier crops from planting through harvest.
Modern calcium nutrition is about more than preventing physiological disorders—it's about building stronger plants from the inside out.
Cal 40 combines 40% calcium, micronized calcium carbonate, and biologically active freshwater algae extract into a low-salt, chloride-free, nitrate-free fertilizer that strengthens plant structure, improves nutrient efficiency, supports healthy plant biology, enhances soil health, and increases stress tolerance throughout the growing season.
For growers seeking a premium calcium solution that supports stronger roots, healthier plants, improved crop quality, and long-term soil productivity, Cal 40 delivers a modern approach to calcium nutrition.
Strong roots, healthy cells, and resilient plants all begin with calcium. Cal 40 delivers high-analysis calcium in a crop-safe formulation designed to strengthen plant structure, improve nutrient movement, and support healthier soils for maximum crop performance.
Contact the NutriPort agronomy team today to learn how Cal 40 can strengthen your crop nutrition program or request a customized recommendation for your operation.
Build Stronger Plants. Improve Crop Quality. Maximize Every Harvest.