|
| Action-type |
Action |
Time |
Cost |
| Outsource:
Nutrition |
Acid-based
Soil Extraction |
6
Days |
$69
including overnight shipping |
|
| |
|
|
| |
Description |
|
| |
|
|
| |
Acid-based
extractions are typically performed on soil samples from fields
used for agronomic production; most university soils testing
labs affiliated with Agronomy departments used acid-extraction
techniques. Linked at right is an example of a submittal form
Maria would need to fill out to include with the media sample.
She sends in a sample from several pots that contain plants
showing symptomology and a sample from several pots that contain
plants that appear healthy to the Kansas
State University Soil Testing Lab. |
|
| |
|
|
|
Results |
|
|
|
|
| |
| Results
(extractant) |
From
Plants Showing Symptoms |
From
Plants without Symptoms |
Generally
Acceptable Ranges (ppm) |
| P
(Bray P1, using HCl-ammonium fluoride) |
41 |
56 |
10-24
|
| K
(ammonium acetate) |
792 |
673 |
121-400
|
| Mg
(ammonium acetate) |
210 |
197 |
60-180 |
| Ca
(ammonium acetate) |
609 |
583 |
500-4000 |
| Na
(ammonium
acetate) |
73 |
84 |
0-100 |
| Fe
(chelator DTPA) |
46 |
21 |
3-20
|
| Mn
(chelator DTPA) |
16 |
19 |
1-10
|
| Cu
(chelator DTPA) |
0.6 |
2.3 |
0.3-2
|
| Zn
(chelator DTPA) |
4.6 |
6.2 |
0.5-5
|
| Other
Analysis |
|
|
|
| pH
(1:1 slurry soil:water) |
6.4 |
6.6 |
6.0-7.0 |
|
|
