Secondary Nutrient Fertilizers for Crops
Prevent Nutrient Deficiencies, Improve Yield Quality, Enhance Growth Potential

Our Secondary Nutrient Fertilizers for Crops:
- AccesS – sulfur with nitrogen and micronutrients
- CalSip – calcium and sulfur
- LiberateCa – calcium
- Magnesium – magnesium
Secondary Nutrients Support Stronger, More Resilient Crops
Unlock Better Growth, Yield Quality, and Nutrient Efficiency
While nitrogen, phosphorus, and potassium often get the most attention, secondary nutrients like calcium, sulfur, and magnesium play a critical role in overall plant health and performance. These nutrients support everything from root development and nutrient uptake to photosynthesis and crop quality. Even small deficiencies can lead to stunted growth, reduced yields, and visible defects.
Our secondary nutrient fertilizers, including calcium fertilizer, sulfur fertilizers, and magnesium fertilizers, help ensure your crops have access to everything they need from planting until harvest. Our liquid formulations improve nutrient availability and reduce the risk of nutrients becoming tied up in the soil, allowing plants to absorb and use them more efficiently. Our liquid fertilizers are also easy to integrate into your existing fertilizer or crop protection programs. Whether you’re growing row crops, fruits, or specialty crops, the right liquid fertilizer for crops can help you prevent deficiencies, improve plant health, and maximize yield potential.
To prevent calcium, sulfur, and magnesium deficiencies, it’s important to look at your soil as well as your fertilizer program. We develop fertilizer plans to address deficiencies and make sure the nutrients in your soil are actually available to your plants. Speak with our agronomists to learn more about custom fertilizer plans to eliminate deficiencies.
accesS: High Efficiency Liquid Sulfur Fertilizer
accesS™ is a high-efficiency liquid sulfur fertilizer designed to deliver more plant-available sulfur at lower use rates. Formulated with sulfur, nitrogen, iron, manganese, and zinc, it supports balanced nutrition while improving sulfur uptake and utilization.
Powered by Nutriq Technology, accesS helps keep sulfur in a plant-usable form, reducing the risk of nutrient tie-up in the soil. This increased efficiency allows growers to apply lower concentrations while achieving equal or better results compared to traditional sulfur fertilizers. It can be used anywhere five or more pounds of elemental sulfur are required, offering an economical and environmentally responsible solution that helps prevent nutrient loss and potential toxicity.
Why Sulfur Fertilizers?
Sulfur plays a critical role in plant development, particularly in the formation of proteins and enzymes. It works closely with nitrogen to support efficient nutrient use, meaning crops with adequate sulfur levels are better able to convert nitrogen into usable forms for growth. Sulfur also contributes to overall crop quality, influencing characteristics like flavor, oil content, and protein composition.Without enough sulfur, plants may appear pale or stunted, even when nitrogen is present.

Composition Guarantee Analysis
| Nitrogen (N) | 7.00% 7.00% Ammoniacal Nitrogen |
| Sulfur (S) | 17.00% 17.00% Combined Sulfur |
| Iron (Fe) | 0.25% 0.25% Water Soluble Iron (Fe) |
| Manganese (Mn) | 0.05% 0.05% Water Soluble Manganese (Mn) |
| Zinc (Zn) | 0.05% 0.05% Water Soluble Zinc (Zn) |
Economical and responsible sulfur fertilizer with nitrogen and micronutrients.

Composition Guarantee Analysis
| Nitrogen (N) | 7.00% 7.00% Ammoniacal Nitrogen |
| Calcium (Ca) | 1.00% |
| Sulfur (S) | 14.00% 14.00% Combined Sulfur |
Calcium and sulfur fertilizer to help plants reach growth potential
CalSip: Calcium and Sulfur Fertilizer to Improve Yield and Quality
CalSip™ is a liquid calcium and sulfur fertilizer. These two nutrients are vital for plant structure, growth, and overall crop quality, especially in crops with higher calcium demands such as apples, cherries, citrus fruits, and cruciferous vegetables.
By delivering nitrogen, calcium, and sulfur in a readily available form, CalSip helps correct deficiencies that can lead to stunted growth, defects and reduced yields. When crops are not reaching their full potential, supplementing with calcium and sulfur can improve plant strength, enhance development, and support more consistent, high-quality production.
Why Calcium Fertilizers?
Calcium plays an important, but often overlooked role in crop health. Plants without necessary calcium develop defects in shape and color, and cannot effectively utilize other nutrients available. In addition to supporting plant growth, calcium plays an important role in long-term soil health. It helps balance salt levels, improves water movement through the soil, and enhances overall soil structure—allowing crops to better resist stress and utilize water more efficiently.
LiberateCa: Versatile Calcium Fertilizer for Soil and Plant Health
LiberateCa is a liquid calcium fertilizer designed to prevent and correct calcium deficiencies across a wide range of crops and soil types. IIt can be applied in multiple ways, including directly to the soil or as a foliar application, making it easy to integrate into existing fertility programs.
Using Nutriq Technology, LiberateCa delivers sustained, plant-available calcium while protecting it from reacting with other nutrients like phosphorus. This ensures calcium remains accessible to the plant and compatible with other fertilizers, eliminating the need for additional passes.

Composition Guarantee Analysis
| Calcium (Ca) | 3.00% |
Calcium fertilizer to prevent calcium deficiency and improve growth

Composition Guarantee Analysis
| Magnesium (Mg) | 2.50% |
Magnesium fertilizer to promote chlorophyll production
Magnesium: Essential for Photosynthesis and Crop Quality
Magnesium is a vital secondary nutrient that supports chlorophyll production and drives photosynthesis. Without adequate magnesium, plants struggle to produce energy, leading to stunted growth and reduced crop performance.
Our liquid magnesium fertilizer makes it easy to correct deficiencies at planting or during the growing season. Because magnesium is mobile within the plant, timely applications can quickly restore normal growth and development.
Magnesium also plays a key role in the production and transport of sugars, starches, fats, and oils. Deficiencies can impact the shape, flavor, and overall quality of crops such as fruits, vegetables, and oilseeds. By ensuring adequate magnesium levels, growers can support healthier plants and improve both yield and crop quality.

Why Magnesium Fertilizers?
Magnesium is essential for energy production within the plant. As a core component of chlorophyll, it directly drives photosynthesis. Without sufficient magnesium, plants cannot efficiently capture sunlight or produce the energy needed to develop properly. Magnesium also plays a key role in transporting nutrients and producing sugars, starches, and oils. This makes it especially important for crops where quality traits matter, such as fruits, vegetables, and oilseed crops.
Low Yields? Deformations or Defects?
Secondary Nutrients May Be Missing
By incorporating targeted liquid applications of secondary nutrients, you can address deficiencies before they become costly problems. We use testing, not guesswork, to determine what nutrients are missing. To learn more, talk with an agronomist about custom fertilizer programs, and help your crops reach their full yield potential.
