Soil Test Correction Fertilizers

If you’ve taken a soil test, you already know exactly what your lawn needs. Now it’s time to fix it.

Our Soil Test Correction Fertilizers are designed to target specific nutrient deficiencies and soil imbalances like low phosphorus, potassium, nitrogen, calcium, poor soil structure, low organic matter, and improper soil pH. Instead of guessing, these products allow you to apply the exact nutrients and soil amendments your lawn is lacking—resulting in healthier turf, deeper color, stronger roots, and better overall performance.

Whether you're correcting a major deficiency or fine-tuning your soil, these are professional-grade products designed to help you build a healthier, more balanced lawn from the ground up.

Why Soil Test Corrections Matter

Most lawn problems—thin turf, poor color, slow growth, weak roots, and stress issues—start below the surface. Without the right balance of nutrients and soil chemistry, your grass simply can’t perform at its best.

• Low phosphorus can lead to weak root development
• Low potassium can reduce stress tolerance and disease resistance
• Low nitrogen can cause pale color and slow growth
• Low calcium can affect soil balance and overall plant health
• Improper pH can make nutrients less available to the plant
• Poor soil structure can limit root growth, water movement, and oxygen flow
• Low organic matter and CEC can reduce the soil’s ability to hold nutrients

Correcting these issues based on a soil test is one of the smartest ways to improve lawn performance and get better results from every fertilizer application.

Targeted Nutrient Solutions

Triple Super Phosphate 0-46-0

Purpose: Increase phosphorus levels

Phosphorus is essential for root development and overall plant strength. If your soil test shows low phosphorus, 0-46-0 Triple Super Phosphate delivers a highly concentrated dose to help correct the deficiency. This is especially important for new lawns, overseeding projects, or any turf struggling to establish strong roots.

0-0-30 Potash

Purpose: Increase potassium levels

Potassium plays a critical role in stress tolerance, drought resistance, and disease protection. 0-0-30 Potash helps your lawn withstand heat, cold, and environmental stress while improving overall durability and resilience. It’s a great choice for lawns that need stronger overall performance and better seasonal toughness.

21-0-0 Ammonium Sulfate

Purpose: Quickly increase nitrogen levels

If your lawn needs a fast green-up, 21-0-0 Ammonium Sulfate is an excellent option for delivering nitrogen quickly. This fast-release nitrogen source provides rapid color and growth while also supplying sulfur, which can support nutrient uptake and overall turf health. It’s ideal for correcting nitrogen deficiencies and improving lawn appearance fast.

Phast Cal Lime

Purpose: Raise soil pH and increase calcium levels

Soil pH is one of the most important factors in nutrient availability. If your soil is too acidic, your lawn may struggle to properly absorb nutrients even when they are present. Phast Cal Lime helps raise soil pH, reduce excess hydrogen in the soil, and increase calcium levels, creating a more balanced environment for healthier turf growth.

Root Relief Gypsum

Purpose: Improve soil structure and add calcium and sulfur without changing pH

Root Relief Gypsum is a great choice for improving compacted or heavy soils. It helps loosen soil structure, allowing better water penetration, root growth, and oxygen movement. It also supplies calcium and sulfur without raising soil pH, making it ideal for lawns that need these nutrients but already have an acceptable pH level. With added humic acid, it also supports better soil health and nutrient efficiency.

Bio-Boost

Purpose: Increase CEC and improve soil biology

Bio-Boost is designed to improve your soil by adding organic matter and feeding beneficial microbes. It helps increase Cation Exchange Capacity (CEC), allowing your soil to hold and use more nutrients over time. This can improve fertilizer efficiency, encourage healthier root development, and support long-term soil improvement.

How to Use Soil Test Correction Fertilizers

Start with a soil test to identify exactly what your lawn needs. Then apply the recommended products based on your results.

• Apply using a broadcast spreader for even coverage when appropriate
• Follow recommended application rates based on your soil test results
• Water in products after application when needed for best performance
• Avoid overapplying products—precision leads to better results

Pro Tip: These products are designed to correct specific deficiencies and soil issues, so it’s important to apply only what your lawn needs based on your soil test.

Take the Guesswork Out of Lawn Care

Stop guessing and start giving your lawn exactly what it needs. With Soil Test Correction Fertilizers, you can target nutrient deficiencies and soil issues with precision—helping you build a thicker, greener, healthier lawn from the ground up.

Not sure what your lawn needs? Start with a soil test so you can choose the right products and apply them with confidence.