California Plant Natural® Soil Test

Comprehensive Soil Analysis for High-Performance Growing in Challenging Conditions

A Premium Soil Test Built for California Growers—Backed by Science

Designed with the unique challenges of California soils in mind, this advanced soil test goes far beyond the basics. The California Plant Natural® Soil Test offers a comprehensive profile of your soil’s chemistry and physical structure, giving you the data you need to grow stronger, more resilient crops—even in tough environments.

This test is ideal for growers facing high salinity, bicarbonate issues, or nutrient lockout due to pH imbalance. Whether you manage orchards, vineyards, row crops, or specialty vegetables, this package is designed to give you a true picture of soil health and fertility —along with actionable recommendations tailored to your crops.

Included in Your Analysis:

Soil Properties & Structure

• Texture – Determines drainage, compaction risk, and water-holding capacity. Knowing your soil texture helps you understand how nutrients and amendments behave in your soil.
• pH – A key factor in nutrient availability. Even fertile soils can underperform if the pH is out of range.
• Electrical Conductivity (EC) – A measure of salinity. High EC can inhibit seed germination and nutrient uptake, especially in arid and irrigated regions like much of California.

Salinity & Alkalinity Factors

• Carbonates (CO₃), Bicarbonates (HCO₃), Sulfates (SO₄-S), and Chlorides (Cl)
  These elements can accumulate in irrigated soils, creating toxic conditions and interfering with nutrient availability. This test helps you identify and manage salt stress before it affects your yield.

Macronutrients

• Nitrate-Nitrogen (NO₃-N) – Indicates immediately available nitrogen. Crucial for leafy growth and early-stage development.
• Phosphate (P₂O₅) – Supports root growth, flowering, and energy transfer. Imbalances here can limit crop performance.
• Potassium (H₂O & CO₂ extractable) – Essential for fruit quality, water regulation, and stress resistance.
• Calcium, Magnesium, Sodium (H₂O & CO₂ extractable) – These secondary nutrients influence everything from root strength to nutrient uptake and soil structure.

Micronutrients

• Zinc (Zn), Iron (Fe), Manganese (Mn), Copper (Cu), Boron (B) – Trace elements with outsized impacts on enzyme function, chlorophyll production, reproductive development, and overall plant metabolism. Deficiencies or toxicities often occur in high-pH or saline soils—this test catches them.

Soil Ratios

• Na:Ca & Na:Mg Ratios – High sodium relative to calcium or magnesium is a red flag for soil degradation and poor structure. This ratio helps you identify potential infiltration and compaction issues.

What You’ll Receive

• Color-Coded 2-Page Report
  Clear, easy-to-read format with values highlighted by severity level.
• Custom Recommendations for Up to Two Crops
  Fertilizer and amendment guidelines tailored to your selected crops and soil conditions.
• Plant Nutrient Removal Rates
  Estimates of nutrients your crop is likely to pull from the soil during its lifecycle, helping you plan replenishment accurately.
• Expert Fertilizer Guidelines
  Product-neutral suggestions that prioritize efficiency, crop safety, and long-term soil health.

Sample Requirements & Turnaround

• Minimum Sample Size: 3–4 cups of soil
• Turnaround Time: 5–7 business days after the sample reaches our lab

Optional: Speak With a Certified Crop Advisor

Need help interpreting your results? We offer personalized consultations with our Certified Crop Advisors.
📞 Call us to schedule a session once your report is ready.

Why Choose the California Plant Natural® Test?

• Tailored for California’s challenging growing conditions
• Interprets data through the lens of plant performance, not just raw numbers
• Includes often-overlooked parameters like bicarbonates and chlorides
• Backed by decades of agronomic experience

Order the California Plant Natural® Soil Test Today

Get the complete picture of your soil’s fertility and hidden stressors. With expert guidance and real data, you’ll be equipped to grow healthier crops, reduce input waste, and protect your soil for seasons to come.