Selection
of Appropriate
Analytical Codes
Water • Soil • Organic Amendments • Plant Tissue Analysis • Code for Analysis Items
ANALYTICAL CODE PACKAGES:
Waters:
In the majority of new projects, one should always begin with a complete
irrigation water chemistry evaluation. It is indispensable to confirm that
the chemistry of the irrigation water to be employed, is appropriate
for the project of interest. If the water chemistry is NOT adequate
for a specific crop use, the project
may have to be abandoned or another source of water with more adequate chemistry
may have
to be found .
ANALYTICAL CODE |
DESCRIPTION | COST U.S. $ EA. |
| A71 | Agricultural suitability includes determination of pH, pHc, electrical conductivity, sodium, calcium, magnesium, potassium, chloride, sulfate, bicarbonate, carbonate, nitrate, phosphate, boron, adj. RNa( adjusted sodium adsorption ratio), fluoride, copper, zinc, manganese, iron, aluminum and molybdenum. This is the Complete water analysis package. | $90.00 |
| A73 | Used to determine the concentrations of dissolved fertilizers in irrigation water. Determines the concentrations of nitrate Nitrogen, ammonium nitrogen, phosphorous, potassium, pH, Electrical conductivity, sodium, copper, zinc, manganese, iron, boron, calcium, magnesium and sulfate. This package evaluates the efficiency of liquid fertilizer feed systems. | $38.00 |
| A74 | A73 plus bicarbonate | $50.00 |
| A83-XX-N | Specific elements selected from
analytical code table N = 1, single element N = 2, two or more elements/ sample |
$16.00 $8.00 ea. |
ANALYTICAL CODE |
DESCRIPTION | COST
U.S. $ EA. |
| A01 | Fertility (major elements) determined by pH, salinity, Nitrate nitrogen (NO3), ammonium nitrogen (NH4), phosphate phosphorous, potassium, calcium, magnesium analyses. Utilized to evaluate fertility and plant fertilizer programs. Commonly used for field and greenhouse fertility control. Soil extraction with sodium chloride solution, sodium bicarbonate solution and distilled water. | $32.00 |
| A17 | Complete Fertility (major and minor elements): A01 plus minor elements (copper, zinc, manganese, iron, boron). | $50.00 |
| A02 | Agricultural suitability package determines pH, salinity, boron, sodium, potassium, calcium, magnesium employing saturation extract. This analysis package determines the potential hazard from salinity, sodium, boron and impaired soil structure. Not designed for fertility information. |
$40.00 |
| A03-N | Particle Size Appraisal Package, half saturation %, pH, Salinity, organic % and particle sizes. N = 1, USDA particle sizesN = 2, USDA particle sizes with US sieves for fine and very fine sand |
$50.00 $65.00 |
| A05-N | Comprehensive Package N = 1, combination
A01, A02 and A03 (round hole) |
$100.00 $115.00 $100.00 |
| A06-N | Physical Properties of disturbed media N = 0, bulk density,
water holding capacity, |
$65.00 $85.00 $35.00 $32.00 |
ANALYTICAL CODE |
DESCRIPTION | COST
U.S. $ EA. |
| A07-N | Partial
organic amendment evaluation |
$60.00 $50.00 |
| A08-N | N
= 0, same as A07-0, plus A01 N = 1, same as A08-0, without particle size |
$80.00 $70.00 |
| A09-N | N
= 0, same as A07-0, plus A17 |
$100.00 $90.00 |
| A91-N | Complete
organic amendment evaluation N = 0, Total and available macro and micro nutrients sodium, chloride, pH, salinity, % humidity as received, dry bulk density, organic %, particle sizes, estimated carbon:nitrogen ratio N = 1, same as A91-0, without particle sizes |
$150.00 $140.00 |
Plant
Tissue Analysis (foliar analysis):
The use of plant analysis as an accurate method for evaluating nutritional
status, nutritional requirements and toxicity, has increased greatly in
the past several decades due to the large amount of research in this field.
Since each crop has its own set of optimal levels, it is necessary that
background information be available in order to make use of plant analysis.
Sampling of proper plant parts is essential to acquiring useful data. Comparisons
of normal vs. symptomatic leaves or plant parts can sometimes be helpful
with or without background data.
ANALYTICAL CODE |
DESCRIPTION | COST
U.S. $ EA. |
| A66 | Major and micro element package includes total nitrogen, phosphorous, potassium, calcium, magnesium, copper, zinc, manganese, iron, boron, sodium and sulfur | $50.00 |
| A65 | Micro elements only; copper, zinc, manganes, iron and boron | $30.00 |
| A52 | 2 % acetic acid extractable petiole analysis package; nitrate nitrogen, phosphate phosphorus, potassium, sodium | $26.00 |
| A63-XX-N | Total Element (except nitrogen
and sulfur). A63-01-00, Sample preparation N = 1, single element N = 2, two or more elements |
$10.00 $10.00 $8.00 ea. |
| -01 sample preparation -03 aluminum -07 ammonium nitrogen -15 bicarbonate -17 boron -25 calcium -27 carbonate -30 chloride |
-37 copper -40 fluoride -44 iron -48 lithium -50 magnesium -52 manganese -55 molybdenum -59 nitrite ($ 35.00) -60 nitrate nitrogen |
-61 nitrogen, total -64 phosphate, phosphorous -65 phosphorous, total -67 potassium -80 sodium -84 sulfate -85 sulfur, total -95 zinc |
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by Soil and Plant Laboratory - International Division
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