Plant tissue analysis : measuring nutrients to optimize fertilizer efficiency & protect environmental quality - Page 1 |
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N. C. Department of Agriculture
and Consumer Services
Steve Troxler, Commissioner
Agronomic Division
Measuring Nutrients to
Optimize Fertilizer Efficiency
& Protect Environmental Quality
Plant Tissue
Analysis
For additional information, contact
NCDA& CS Agronomic Division
Colleen M. Hudak- Wise, Ph. D., Director
Plant/ Waste/ Solution Section
Brenda R. Cleveland, Section Chief
Physical Location:
4300 Reedy Creek Road
Raleigh, NC 27607- 6465
Mailing Address:
1040 Mail Service Center
Raleigh, NC 27699- 1040
Phone: ( 919) 733- 2655
or visit our Web site
www. ncagr. gov/ agronomi
Prepared by
Brenda Cleveland, Michelle McGinnis
and Catherine Stokes
revised September 2008
The Plant Analysis Report
The plant analysis report has three
sections: laboratory results, interpretation
and recommendations. Results include
concentrations of 11+ essential plant nutrients
and sodium, on a dry- weight basis. Ratios of
important elements, including N: K, N: S and
Fe: Mn, are also provided. The nitrate nitrogen
concentration of petioles is reported for cotton,
strawberry and vinifera grape.
Interpretation is based on suffi ciency ranges
established for each crop. Nutrient concentrations
are converted to a standard index scale of 0– 124.
The scale is divided into zones that indicate
whether nutrient levels are deficient, low,
suffi cient, high or in excess. An index value of
50– 75 is desirable, in most cases.
When appropriate, the report contains fertilizer
recommendations and supporting information.
Diagnostic reports may also provide site-specifi
c suggestions for corrective action. The
inclusion of these suggestions will depend
on how completely the grower fi lled out the
sample information form.
Record Keeping
Plant analysis reports provide valuable data
for making fertilizer management decisions
as well as an excellent record of crop nutrient
use and needs from year to year under different
environmental conditions. Combined with yield
data, they can also document nutrient use on
fi elds where animal or municipal waste is land-applied.
In this way, plant analysis reports can
serve as valuable evidence of responsible crop
management and environmental stewardship.
Object Description
Description
| Title | Plant tissue analysis : measuring nutrients to optimize fertilizer efficiency & protect environmental quality - Page 1 |
| Pres Local File Path-M | \Preservation_content\StatePubs\pubs_borndigital\images_master\ |
| Full Text | N. C. Department of Agriculture and Consumer Services Steve Troxler, Commissioner Agronomic Division Measuring Nutrients to Optimize Fertilizer Efficiency & Protect Environmental Quality Plant Tissue Analysis For additional information, contact NCDA& CS Agronomic Division Colleen M. Hudak- Wise, Ph. D., Director Plant/ Waste/ Solution Section Brenda R. Cleveland, Section Chief Physical Location: 4300 Reedy Creek Road Raleigh, NC 27607- 6465 Mailing Address: 1040 Mail Service Center Raleigh, NC 27699- 1040 Phone: ( 919) 733- 2655 or visit our Web site www. ncagr. gov/ agronomi Prepared by Brenda Cleveland, Michelle McGinnis and Catherine Stokes revised September 2008 The Plant Analysis Report The plant analysis report has three sections: laboratory results, interpretation and recommendations. Results include concentrations of 11+ essential plant nutrients and sodium, on a dry- weight basis. Ratios of important elements, including N: K, N: S and Fe: Mn, are also provided. The nitrate nitrogen concentration of petioles is reported for cotton, strawberry and vinifera grape. Interpretation is based on suffi ciency ranges established for each crop. Nutrient concentrations are converted to a standard index scale of 0– 124. The scale is divided into zones that indicate whether nutrient levels are deficient, low, suffi cient, high or in excess. An index value of 50– 75 is desirable, in most cases. When appropriate, the report contains fertilizer recommendations and supporting information. Diagnostic reports may also provide site-specifi c suggestions for corrective action. The inclusion of these suggestions will depend on how completely the grower fi lled out the sample information form. Record Keeping Plant analysis reports provide valuable data for making fertilizer management decisions as well as an excellent record of crop nutrient use and needs from year to year under different environmental conditions. Combined with yield data, they can also document nutrient use on fi elds where animal or municipal waste is land-applied. In this way, plant analysis reports can serve as valuable evidence of responsible crop management and environmental stewardship. |
