If you don't measure it,
You can't manage it.
To ensure the best management decisions on your farm are made, it is important to understand exactly when nutrient uptake occurs and what the soil can contribute.
Start measuring with these Soil & Tissue Analysis Packages.
Choose a Sample Analysis Package that fits your farm operation.
Baseline + Decisive
Full
Package
- Establish nutrient baselines by measuring total and plant available nutrient levels*
- Track mineral solubilization, microbiological activity and more
- Understand nutrient trends over time and make long-term management decisions
3 Soil, 6 Tissue
on 2 zones for corn/Soybeans**
- V3-V5: 0-6” Indicator Complete Soil Analysis & Tissue Analysis
- V7-V8/R1: 0-12” Plant Available Soil Analysis & Tissue Analysis
- V12-V13/R2: Tissue Analysis
- VT/R3: 0-12” Plant Available Soil Analysis & Tissue Analysis
- R2/R4: Tissue Analysis
- R4/R5: Tissue Analysis
Decisive
Primary Package
- Understand the nutrient availability of your crop
- Make informed nitrogen application decisions for maximum efficiency this season
- Use insights from Agronomy 365’s N-Decision Tool
2 Soil, 2 Tissue
on 2 zones for corn/soybeans**
- V5-V6 Side-Dress: 0-12” Plant Available Soil Analysis & Tissue Analysis
- V12-V14: 0-12” Plant Available Soil Analysis & Tissue Analysis
- Field Representation of average N rate
- For variable rate, a zone map is needed (cannot variable rate without past data)
Decisive
Biology Package
- Understand current nutrient levels along with AI predictions of future changes
- Measure total, inorganic and plant available nutrition
- Identify nutrient gaps and make in-season adjustments with Agronomy 365’s macronutrient decision tools
2 Soil, 3 Tissue
on 2 zones for corn/soybeans**
- V3-V5: Tissue Analysis, 0-6″ Indicator Max Soil Analysis & 6-12″ Indicator Max Soil Analysis
- V6-V7/R1: Tissue Analysis
- V10-V12/R2: Tissue Analysis, 0-6″ & 6-12″ Indicator Max Soil Analysis
- AI predictability on Total P H3A
**The sampling depth and total number of samples collected is approximate and subject to weather and field condition
Field Rates
Field Rates
Sampling Rates
Sampling Rates
*Custom Sampling Services are available for Tier 2 Elite Memberships only.
Don't need a complete sampling program?
Submit a single soil or tissue analysis whenever it’s convenient for you. Check out the product sheets for your crop to learn which test you need!
| Metric Reported | Plant Available Soil Analysis | Indicator Complete Soil Analysis | Indicator Max Soil Analysis |
CEC 
Cation Exchange Capacity | ✓ | ✓ | ✓ |
| Surface Nitrogen | ✓ | ✓ | ✓ |
| Total Nitrate | ✓ | ✓ | ✓ |
| H2O Nitrate | ✓ | ✓ | ✓ |
| H2O NH3 | ✓ | ✓ | ✓ |
| H2O Nitrate – NH3 Ratio | ✓ | ✓ | ✓ |
| SLAN
Solvita Labile Amino-Nitrogen; great indicator of late season Nitrogen release from the soil. | ✓ | ✓ | ✓ |
| Inorg N | ✓ | ✓ | ✓ |
| WEOC Goal | ✓ | ✓ | ✓ |
| Total Est N Release | ✓ | ✓ | ✓ |
| Total P H3A
Total Plant Available Phosphorus | ✓ | ✓ | ✓ |
| P H3A (Inorg) | ✓ | ✓ | ✓ |
| P H3A (Org) | ✓ | ✓ | ✓ |
| Available P2O5
Amount of phosphorus available to plants, as P2O5. | ✓ | ✓ | ✓ |
| Phosphorus Saturation
In neutral to low pH situations, this level tells us how likely it is that phosphorus will be tied up by iron and aluminum and helps determine if phosphorus applications should be banded. | ✓ | ✓ | ✓ |
| K H3A
Plant Available Potassium | ✓ | ✓ | ✓ |
| Ca H3A
Plant Available Calcium | ✓ | ✓ | ✓ |
| Ca Saturation | ✓ | ✓ | ✓ |
| Ca:Mg H3A | ✓ | ✓ | ✓ |
| Mg H3A
Plant Available Magnesium | ✓ | ✓ | ✓ |
| Fe H3A
Plant Available Iron | ✓ | ✓ | ✓ |
| Al H3A
Plant Available Aluminum | ✓ | ✓ | ✓ |
| Fe/Al Factor | ✓ | ✓ | ✓ |
| Organic Matter | X | ✓ | ✓ |
| pH
Measure of acidity in the soil. | X | ✓ | ✓ |
| Buffer pH | X | ✓ | ✓ |
| WEOC/CEC
Carbon Saturation (Water Extractable Organic Carbon/Cation Excange Capacity) | X | ✓ | ✓ |
| Soluble Salt | X | ✓ | ✓ |
| HT3
24-hr CO2 Burst, measure of biological activity. | X | ✓ | ✓ |
| VAST
Measure of soil structure. | X | ✓ | ✓ |
| Est. Bacteria:Fungi | X | ✓ | ✓ |
| Sub Nitrate | X | ✓ | ✓ |
| C:N Ratio | X | ✓ | ✓ |
| Org N (WEON) | X | ✓ | ✓ |
| Mac WEON | X | ✓ | ✓ |
| WEOC
Water Extractable Organic Carbon, food source for the microbes. | X | ✓ | ✓ |
| Rating
Ranking from 1-5 that summarizes all the metrics that are important when making nutrient recommendations, higher number means more nutrient will be release from the soil. | X | ✓ | ✓ |
| Zinc
Extractable Zinc | X | ✓ | ✓ |
| Total P H3A:Zn
Plant Available Phosphorus to Extractable Zinc ratio. | X | ✓ | ✓ |
| Manganese
Extractable Manganese | X | ✓ | ✓ |
| Copper
Extractable Copper | X | ✓ | ✓ |
| Sulfur
Extractable Sulfur | X | ✓ | ✓ |
| Sodium
Extractable Sodium | X | ✓ | ✓ |
| Boron
Extractable Boron | X | ✓ | ✓ |
| Chloride – Water | X | ✓ | ✓ |
| Bray Phosphorus
Extractable Phosphorus | X | ✓ | ✓ |
| Olsen Phosphorus
Extractable Phosphorus | X | ✓ | ✓ |
| Mehlich Phosphorus
Extractable Phosphorus | X | ✓ | ✓ |
| Phosphorus Rating
Ranking from 1-5 that summarizes all the metrics that are important when making nutrient recommendations, higher number means more nutrient will be release from the soil. | X | ✓ | ✓ |
| K
Extractable Potassium | X | ✓ | ✓ |
| K:Na | X | ✓ | ✓ |
| K:Mg | X | ✓ | ✓ |
| K:Mg H3A | X | ✓ | ✓ |
| Potassium Base Sat. | X | ✓ | ✓ |
| Sodium Base Sat. | X | ✓ | ✓ |
| Potassium Rating
Ranking from 1-5 that summarizes all the metrics that are important when making nutrient recommendations, higher number means more nutrient will be release from the soil. | X | ✓ | ✓ |
| Ca
Extractable Calcium | X | ✓ | ✓ |
| Ca:Mg Base Sat. | X | ✓ | ✓ |
| Calcium Base Sat. | X | ✓ | ✓ |
| Calcium Rating
Ranking from 1-5 that summarizes all the metrics that are important when making nutrient recommendations. A higher number means more of that nutrient will be released from the soil. | X | ✓ | ✓ |
| Mg
Extractable Manganese | X | ✓ | ✓ |
| K:Mg | X | ✓ | ✓ |
| Magnesium Base Sat. | X | ✓ | ✓ |
| Magnesium Rating
Ranking from 1-5 that summarizes all the metrics that are important when making nutrient recommendations. A higher number means more of that nutrient will be released from the soil. | X | ✓ | ✓ |
| Fe
Extractable Iron
| X | ✓ | ✓ |
| Hydrogen Base Sat. | X | ✓ | ✓ |
| Total Phosphorus Nutrient Analysis | X | X | ✓ |
| Total Potassium Nutrient Analysis | X | X | ✓ |
| Total Sulfur Nutrient Analysis | X | X | ✓ |
| Total Magnesium Nutrient Analysis | X | X | ✓ |
Sample timing is KEY.
As soil and plant conditions change, so do their test results. To make sure you get the most accurate report for your field, check out the sampling protocols below.
