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(308) 234-2418 Monday - Friday 8:00 AM - 5:00 PM (CDT)
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Submit A Sample | Plant Analysis

Ready to submit your sample?

Choose your test package, find your plant type and follow the sampling directions below. You can download a sample form to submit with your sample. 

Not sure what type of plant sample you need?

Here are a few we’d recommend:

P-2. Routine Plant Tissue Testing

$31.65 USD

This is a great entry point for plant testing! Send us a sample, following directions for your individual crop. We’ll test your sample for nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, zinc, iron, manganese, copper, boron and molybdenum. You’ll receive a complete report of your results, allowing you to adjust management techniques accordingly.

View Sampling Procedure

P-4. Corn Stalk Nitrate

$15.15 USD

Highly recommended for our corn growers, this test measures nitrogen present in corn stalks at the end of the growing season. Stalk nitrate testing provides vital data on the effectiveness of your nitrogen fertilizer application, allowing you to adjust as necessary and potentially save money on expensive inputs.

(A corn stalk nitrate sample is taken from 6 inches to 14 inches above the soil surface. A sample should contain 10 8-inch stalks.)

View Sampling Procedure

P-419. Cover Crop Nutrient Content

$52.25 USD

How effective is your cover crop at adding nutrient value to your soil? This test is designed to answer that question. We measure the levels of key nutrients present in your cover crop, providing you with the data you need to build the healthiest soil possible.

(Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Sulfur, Zinc, Iron, Manganese, Copper, Molybdenum, Boron, Total Carbon, C:N Ration, Dry Matter (%), Forage Yield (ton/ac), Biomass Weight As Is)

View Sampling Procedure

Some Other Plant Analysis Options:

P-205. Routine + Total Carbon

(Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Sulfur, Zinc, Iron, Manganese, Copper, Boron, Molybdenum, Total Carbon)

$42.90 USD

View Sampling Procedure

P-12. Routine Minus Nitrogen

(Phosphorus, Potassium, Calcium, Magnesium, Sulfur, Zinc, Iron, Manganese, Copper,
Boron, Molybdenum)

$21.45 USD

View Sampling Procedure

P-3. Super Complete Plant Tissue

Similar to the Routine test, but with addition of chloride testing.

(Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Sulfur, Zinc, Iron, Manganese, Copper, Molybdenum, Boron, Chloride)

$41.55 USD

View Sampling Procedure

P-420. Cover Crop Super Complete

(P-419 plus Chloride)

$66.00 USD

View Sampling Procedure

P-405. CARBON:NITROGEN RATIO

(Nitrogen, Total Carbon)

$19.80 USD

View Sampling Procedure

Looking for individual analyses?

Plant Analysis

Prices effective January 1, 2025. All prices are subject to change without notice.
All prices are in USD.

2025 Plant One-Pager

Download the Plant Analysis Prices

PLANT ANALYSIS
P-2 ROUTINE $31.65
  Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Sulfur, Zinc, Iron, Manganese, Copper, Boron, Molybdenum  
P-205 P-2 + TOTAL CARBON $42.90
     
p-212 P-2 MINUS NITROGEN $21.45
     
P-3 SUPER COMPLETE $41.55
  Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Sulfur, Zinc, Iron, Manganese, Copper, Molybdenum, Boron, Chloride  
P-4 CORN STALK NITRATE $15.15
  A corn stalk nitrate sample is taken from 6 inches to 14 inches above the soil surface. A sample should contain 10-8-inch stalks.  
P-419 COVER CROP NUTRIENT COMPLETE $52.25
  Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Sulfur, Zinc, Iron, Manganese, Copper, Molybdenum, Boron, Total Carbon, Dry Matter (%), Forage Yield (ton/ac), Biomass Weight As Is  
P-420 COVER CROP SUPER COMPLETE $66.00
  P-419 plus Chloride  
P-421 COVER CROP C:N $19.80
  Nitrogen, Total Carbon, Dry Matter (%), Biomass Ton/Acre  
INDIVIDUAL PLANT ANALYSIS
  Aluminum $9.35
  with P-2, P-212, P-205, or P-3  
  CHLORIDE $9.65
  DRY MATTER $9.65
  NITRATE-NITROGEN $9.65
  PHOSPHATE-PHOSPHORUS $9.35
  SODIUM $4.70
  with P-2, P-212, P-205, or P-3  
  TOTAL CARBON $10.45
  TOTAL NITROGEN $10.45
  TOTAL CARBON and TOTAL NITROGEN $19.80
Heavy Metals
  Digest* Fee $23.65/ sample
  Heavy Metals $23.65/ metal/ sample
  Arsenic, Barium, Cadmium, Chromium, Cobalt, Lead, Nickel, Selenium, Strontium, Vanadium  

Plant analysis provides two approaches to enhancing fertilizer effectiveness. One is the diagnostic approach where plant analysis is made when there is an obvious growth problem in the field. A sample is taken from the poor growing area and compared to a sample from an adjacent normal growing area.

Ward Laboratories, Inc. suggests using this diagnostic approach for researching production problems. The comparative samples are very important for proper interpretation of the analysis. The testing fee for the normal comparative sample is one- half the regular fee.

The monitoring approach is used to confirm that the plant has proper nutrition. Plant samples should be taken while the crops are at the bloom (reproductive) stage of growth. Samples taken earlier than bloom stage contain higher levels of nutrients. For this reason, it is very important to identify the growth stage for proper interpretation.

Learn More

Need us to diagnose a specific problem?

Please note that when diagnosing a growth problem in a specific section of a field, we recommend that two plant samples be taken — one from the area experiencing poor growth and one from an area experiencing normal growth.

This allows us to analyze both samples side by side and accurately diagnose the problem. The fee to test the normal growth sample is half the regular testing fee.

Ready to submit a sample?

Leaf & Plant tissue Sampling Procedure

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