ANIMAL HEALTH GENERAL DIRECTOR
Animal Health Laboratory
Results Letter of Communication
Property: Test plots (Eng. Francisco Lopez Lugo) Case No 178
Location: Km 7.5 San Felipe Highway
Analysis: Chemical, heavy metal, nematode
Date: February 19, 2001
Material received: 6 soil samples Soil with fertilizer / Soil with no fertilizer
Notes: Analytical comparison of treated and untreated soils
| Metals |
Hg None |
| |
Pb None |
| Conductivity |
Without Fertilizer 69 ms/cm |
| |
With Fertilizer 46 ms/cm |
| Hardness |
Without Fertilizer 2460 ppm |
| CaCO3 (20-400 ppm) |
With Fertilizer 1920 ppm |
| Potassium |
Without Fertilizer 282 mg/L |
| (0-250 mg/L) |
With Fertilizer 168.75 mg/L |
| Nitrogen-Nitrates |
Without Fertilizer 21.3 ppm |
| (0-60 ppm) |
With Fertilizer 12.6 ppm |
| Ca + Mg |
Without Fertilizer 85 meq/100 gr. |
| |
With Fertilizer 250 meq/100 gr. |
| Phosphate |
Without Fertilizer 20.80 mg/L |
| |
With Fertilizer 53.89 mg/L |
| pH |
Without Fertilizer 7.9 |
| |
With Fertilizer 7.4 |
PARASITE SAMPLE METHOD: Centrifugalization
TREATED SOIL: 510 Nematodes/250 gr. soil
UNTREATED SOIL: 2346 Nematodes/250 gr. soil
Heavy Metal Chemical Analysis: Ing. Patricia Rosales P.
Parasite Analysis: MVZ. Yolanda Gonzales Medina
MVZ. Pedro Ochoa Torres
Laboratory Director
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