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Plant Tissue Testing Services
 

With plant tissue testing, you can monitor nutrient status throughout the growing season and detect a nutrient dOur plant tissue testing services help growers to effectively manage their crop nutrient programs.eficiency before signs of stress appear. This type of analysis takes a precise measurement of the plant's nutritional profile at the time the sample was taken. When used in conjunction with a soil analysis, tissue testing can provide information on what nutrient levels are most limiting to growth and how best to correct them.

Get in touch with one of our plant tissue testing experts for more information about our packages and services.

Testing Options

Plant tissue samples are generally collected as either leaf blade or petiole.

Leaf Analysis* -

  • Total Nitrogen
  • Phosphorus
  • Potassium
  • Zinc
  • Calcium
  • Magnesium
  • Sulfur
  • Manganese
  • Boron
  • Iron
  • Aluminum
  • Sodium


Petiole Analysis* -

  • Total Nitrogen
  • Nitrate-Nitrogen
  • Phosphorus
  • Phosphate-Phosphorus
  • Potassium
  • Zinc
  • Calcium
  • Magnesium
  • Sulfur
  • Manganese
  • Boron
  • Iron
  • Aluminum
  • Sodium

 

Corn Stalk Nitrate Analysis - This end-of-season stalk test was developed to evaluate how well nitrogen fertilizer was utilized by the corn plant and allows the producer to distinguish between over-fertilization and fertilizing to maximize profits. For more information on this or other agronomy topics, visit the AgSource Laboratories blog!

* Each AgSource Laboratories location offers unique testing packages. Please contact your lab location for more details.

Sample Guide

A good plant tissue analysis relies on a good plant tissue sample. To ensure a representative sample and prevent contamination, follow proper sampling instructions. Always collect an adequate amount of tissue. Review the pictorial sampling guide and crop chart for more info.

Sampling Reminders

  • Submit clean, undamaged leaf or plant tissue in a paper bag.
  • Loosely pack the sample in a paper bag to allow air circulation.
  • Label every bag and make sure the submission form matches with the samples.
  • Be sure to include your account number on the sample submission form.
  • When sampling for suspected nutrient element deficient plants, take two samples if possible, one from the normal plants, the other from the abnormal.
  • Taking a soil sample at the same time as a plant tissue sample can provide additional clues to potential issues.

Results & Reports

Sample turnaround is three working days. Results are available online, via email or standard mail. Choose from Excel, PDF or CSV files or one of two plant tissue report options. Click on the example reports below to see the different options.

  • Standard Report - graphs test levels as low, optimum or high. One sample is displayed per report page. - Click here
  • Summary Report - charts test results over time, allowing you to monitor nutrient uptake throughout the season. Line graphs for easy side-by-side comparisons. - Click here