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Do your crops contain the optimal nutrient levels necessary to produce top yields? Adding fertilizer after planting may allow maximum efficiency of the fertilizer that is applied. SGS offers plant tissues testing to diagnose nutrient deficiencies or toxicity problems in your crops and soil.

Tissue testing is typically performed in-season when:

  • A problem has been detected in a field
  • As a fertility assessment
  • Used as a compliment to soil testing

By doing routine tissue sampling at the proper time throughout the growing season, you can verify that your fertility program is working, make adjustments for in-season fertilizer applications, and detect problems before they are visually evident (such as hidden hunger syndrome).

Tissue testing can also help diagnose problems caused by factors unrelated to soil nutrient deficiencies, such as pesticide use or injury and varietal or hybrid differences. SGS also offers a wide variety of herbicide and pesticide screens, when carryover or drift may be an issue.

Sample corn tissues when the plant is less than 12” tall, by collecting all of the plant that is above ground. If the plant is 20” tall, but prior to tassel, collect the first fully developed leaf (first leaf below whorl) from at least 12 plants. If you sample your plant after tasseling, collect the leaf below and opposite the ear from at least 12 plants.

For soybean seedling tissue samples, collect the entire above-ground portion of the plant. For older plants, collect the youngest mature trifoliate leaves from the top of at least 20 plants prior to or during flowering.

Pack your samples in paper bags and ship to the nearest SGS laboratory in Belleville, IL, or Toulon, IL.

For more information, please contact either SGS location: 

1511 East Main Street
Belleville IL 62221
T: 618-233-0445
F: 618-233-7292

117 East Main Street
Toulon IL 61483
T: 309-286-2761
F: 309-286-6251