Plant tissue testing shows nutrients and toxicity

decrease font size  Resize text   increase font size       Printer-friendly version of this article Printer-friendly version of this article

Do your customers’ 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. Plant tissue testing with SGS is a great way to diagnose a nutrient deficiency or toxicity problem in a field.

Tissue testing is typically performed in-season when a problem has been detected in a field, as a fertility assessment, but can also be used as a compliment to soil testing. By doing routine tissue sampling at the proper time throughout the growing season, you can verify that a 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 diagnosis problems caused by factors unrelated to soil nutrient deficiencies, such as pesticide use or injury, varietal or hybrid differences, or soil compaction. Often, sampling good and poor performing areas separately provide a good diagnostic comparison of nutrient concentrations.

SGS tissue packages include: nitrates; basic test (total N, P, and K); standard test (total N, P, K, S, and Zn); and advanced test (total N, P, K, S, Ca, Cu, Fe, Mg, Mn, Zn, Na, B).

Sample corn tissues for when the plant is less than 12 inches tall requires collecting all of the plant that is above ground. If the plant is taller than 12 inches, the recommendation is for collecting the first fully developed leaf from at least 12 plants.

For soybeans, the SGS recommendation is to collect the entire above-ground portion of the plant when collecting seedling tissue samples. Otherwise, collecting the youngest mature trifoliate leaves from the top of at least 20 plants prior to or during flowering is appropriate. Samples are sent in paper bags if shipped to an SGS laboratory in Belleville, Ill; Brookings, S.D.; or Toulon, Ill.

Buyers Guide

Doyle Equipment Manufacturing Co.
Doyle Equipment Manufacturing prides themselves as being “The King of the Rotary’s” with their Direct Drive Rotary Blend Systems. With numerous setup possibilities and sizes, ranging from a  more...
A.J. Sackett Sons & Company
Sackett Blend Towers feature the H.I.M, High Intensity Mixer, the next generation of blending and coating technology which supports Precision Fertilizer Blending®. Its unique design allows  more...
R&R Manufacturing Inc.
The R&R Minuteman Blend System is the original proven performer. Fast, precise blending with a compact foot print. Significantly lower horsepower requirement. Low inload height with large  more...
Junge Control Inc.
Junge Control Inc. creates state-of-the-art product blending and measuring solutions that allow you to totally maximize operating efficiency with amazing accuracy and repeatability, superior  more...
Yargus Manufacturing
The flagship blending system for the Layco product line is the fully automated Layco DW System™. The advanced technology of the Layco DW (Declining Weight) system results in a blending  more...
Yargus Manufacturing
The LAYCOTE™ Automated Coating System provides a new level of coating accuracy for a stand-alone coating system or for coating (impregnating) in an automated blending system. The unique  more...
John Deere
The DN345 Drawn Dry Spreader can carry more than 12 tons of fertilizer and 17.5 tons of lime. Designed to operate at field speeds up to 20 MPH with full loads and the G4 spreader uniformly  more...
Force Unlimited
The Pro-Force is a multi-purpose spreader with a wider apron and steeper sides. Our Pro-Force has the most aggressive 30” spinner on the market, and is capable of spreading higher rates of  more...
BBI Spreaders
MagnaSpread 2 & MagnaSpread 3 — With BBI’s patented multi-bin technology, these spreaders operate multiple hoppers guided by independent, variable-rate technology. These models are built on  more...

Comments (1) Leave a comment 

e-Mail (required)


characters left

Robert Miller    
Colorado  |  June, 06, 2013 at 01:07 PM

The title is misleading... 1 because the article doesn't address toxicity, and 2 toxicity implies a health concern... should be supr-optimal levels. I've reviewed a lot of corn tissue data... very rare are nutrient levels would be considered toxic.

Grain Storage Systems

Behlen Grain Storage Systems offers large capacity bins with diameters from 16’ to 157’ and capacities exceeding 1,500,000 bushels. All ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form