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Plant Analysis Program
Plant tissue analysis is a
valuable aid in crop management. Alone, it can be used for making fertilizer
recommendations for certain crops, such as tree fruits and grapes. For other
crops, plant tissue analysis in combination with soil test information is the
recommended approach for diagnosing nutrient deficiencies and determining
fertilizer requirements. Samples submitted for tissue analysis will be analyzed
for 10 elements: nitrogen, phosphorus, potassium, calcium, magnesium,
manganese, iron, copper, boron, and zinc. The final report includes the
analytical results along with an interpretation based on the crop specified.
Standard plant analysis kits may be purchased from the
county offices of the Penn State Cooperative Extension.
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The following individual
analyses on plant tissue samples are also available. The final report includes
the analytical results without interpretations or recommendations. Samples
should be submitted directly to the laboratory with the analyses desired
specified. Volume discounts are available.
Please contact the laboratory. |
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Samples
submitted unground*
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Sample digestion and ICP analysis: Standard |
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-Dry ash: P, K, Ca, Mg, Mn, Fe, Cu,
B, Al, Zn, Na....................................................... |
$18.00 |
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-Microwave*: P, K, Ca, Mg, Mn, Fe,
Cu, B, Al, Zn, Na, S..........................................
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$18.00 |
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Sample digestion and ICP analysis: Trace |
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-Dry ash:
Cd, Co, Pb, Mo,
Ni.......................................................................................... |
$20.00 |
| Total
nitrogen......................................................................................................................... |
$15.00 |
| Complete:
Nitrogen plus digestion and standard ICP Analysis |
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-N & Dry ash: N, P, K, Ca, Mg,
Mn, Fe, Cu, B, Al, Zn, Na......................................... |
$24.00 |
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-N &
Microwave**: N, P, K, Ca,
Mg, Mn, Fe, Cu, B, Al, Zn, Na, S...........................
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$24.00 |
| Total
silica.............................................................................................................................. |
$25.00 |
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Samples submitted ground
(< 20 mesh)
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Sample digestion and ICP analysis: Standard |
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-Dry ash: P, K, Ca, Mg, Mn, Fe, Cu,
B, Al, Zn, Na...................................................... |
$13.00 |
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-Microwave**: P, K, Ca, Mg, Mn, Fe,
Cu, B, Al,Zn, Na, S.........................................
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$13.00 |
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Sample digestion and ICP analysis: Trace |
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-Dry ash:
Cd, Co, Pb, Mo,
Ni........................................................................................... |
$15.00 |
| Total
nitrogen......................................................................................................................... |
$10.00 |
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Total
silica.................................................................................................................................
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$20.00 |
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Fees listed for unground samples based on sample size of 1 pint or less
. For larger sample sizes, contact the laboratory. **
Minimum 0.2 g sample required for
microwave digestion. Microwave
and dry ash results are comparable with the exception of Fe for which
lower amounts are recovered in the microwave procedure. Please
contact the laboratory with questions on the appropriate method for your
samples.
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