• Farmers that wish to improve crop productivity and health
• Agronomists, Crop Advisors and Consultants who make fertilizer recommendations
• Organic growers looking to maximize the organic method
• Conventional growers looking to minimize fertilizer costs
• Students of Agriculture/Horticulture

• How to optimize fertilization
• General plant health by primary indicators
• Balance of nutrients in different parts of the plant
• Toxic elements that are causing plant stress
• Nitrogen excess/deficiency
• Micronutrient deficiencies
• Nutrient management preferences by cultivar
• And much more…

Plant (sap) nutrient flow and translocation has been studied for over 80 years in hundreds of peer-reviewed journals.  By sampling and analyzing different parts of the plant, agronomic principles can be utilized to determine which nutrients are deficient, balanced, or toxic.

Please read carefully the crop specific sampling guide for details on picking, packing, and shipping your leaves. These guidelines must be followed precisely to allow us to deliver timely and accurate results.

Apical can receive and analyze hemp and cannabis leaves; however, it is the customer’s responsibility to know and follow state and federal shipping regulations. Contact carriers directly for further information regarding shipping regulations and requirements.

In Tissue Analysis, the plant fluids within the plant leaf are excluded and the cellular tissue is analyzed.

In Leaf Extract Analysis, the cellular fluids are analyzed and the tissue components are excluded.

Sap testing implies a number of different protocols. In some forms, plant leaves are juiced to a pulp and analyzed in the field for 1-5 nutrient analytes using portable meters.

In Leaf Extract Analysis, the pure cellular fluids of the plant are extracted and analyzed on precision laboratory equipment for 22 or more analytes.

We employ a multi-stage process that excludes the vascular transport bundles, cellular wall structures and other tissue components. The process produces pure plant fluids to be used for analytical purposes.

We utilize scientifically accepted scientific methods for plant-matrix analysis using precision laboratory techniques for sub-part-per-million quantitation.

To obtain optimal results, we work directly with growers to pave the path to soil health, crop productivity and farm profitability.

Contact us for more information.

• Precision forecasting of plant needs based on analysis results
• Custom Data interpretation
• Detailed Crop Fertilizer Recommendations
• Custom Foliar Nutrition Blends
• Custom Biological Inoculant Recommendations
• Biological-Nutrient Synergy