Covid 19 Update: The Soil Laboratory is open for business & is still accepting samples for testing. Please note however that because of contracted working hours there may be a delay in the sample results.
Covid 19 Update: The Soil Laboratory is open for business & is still accepting samples for testing. Please note however that because of contracted working hours there may be a delay in the sample results.
SOIL  HEALTH, PLANT TISSUE & WATER LABORATORY

BRIEF HISTORY OF THE LABORATORY

The Soil Health, Plant Tissue & Water Laboratory was established during the 1930's. The original building was damaged by fire and the building which presently exists, with some amount of additions, was constructed in 1949. It is to be noted that on April 7, 1942, R.F. Innes, Chief Chemist of the Department of Agriculture completed an analysis of the soil on the Lynford property in St. Ann which is owned by Sir Alfred DaCosta, and informed the Director of Agriculture at the time, G.A. Jones, and Sir Alfred that there is aluminia in commercial quantities in the earth.

The Laboratory was designed to provide analytical services primarily to the farming community, local institutions and agencies. This service is now also extended to international agencies, companies and institutions. It analyses soil, plant tissue, water, fertilizer and other samples to determine their elemental contents. A significant number of the soil analysis is done to verify soil survey field data for soil identification, characterization and classification.

The laboratory has the potential to be pivotal to soil fertility and succession in crop production. It has shown to have profound impact on understanding the soils of Jamaica and on plant care. Therefore, given the wherewithal, the laboratory is able not only to earn money, but to earn the respect from having contributed to sustained successes in farming.

FUNCTIONS OF THE LABORATORY

The core functions of the Laboratory include:
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Planning and executing soil survey studies.
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Soil health analyses (physical, chemical & biological components of the soil)
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Conducting plant/leaf tissue analyses for clientele.
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Conducting water sample analyses for clientele.
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Providing advice on soil fertility management.
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Recommendations of fertilizers to clientele as a result of soil analyses done.
LABORATORY ANALYSES
The Soil Health, Plant Tissue & Water Laboratory has the capacity to perform a wide range of analyses. These are arranged into four(4) categories:
Determinations on Soil Samples
# Element # Element
1 Total Nitrogen 9 Bulk Density, Hydraulic
2 Available Potassium (K20) 10 Organic Matter (OM), Moisture (%)
3 Available Phosphate (P2O5) 11 Particle Density
4 Calcium Carbonate (CaCO3) 12 Anion Cl-, SO4 2  , NO3- etc.
5 Electrical Conductivity (EC) 13 Particles Size Distribution
6 Cation Exchange Capacity (CEC) 14 Exchangeable Aluminum
7 Trace Elements (Mn, Fe, Zn & Cu) 15 Exchangeable Acidity
8 Exchangeable Cations (Ca, Mg, K & Na) 16 pH (H2O, KCL)
Analyses on Fertilizers (organic & inorganic)
# Element
1 Total Nitrogen
2 Potassium
3 Phosphate
Analyses on Water Samples
# Element # Element
1 Sodium 8 Sulfate (SO4 2- )
2 Chloride (Cl-) 9 Carbonate (CO3 2-)
3 Calcium 10 Bicarbonate (HCO 3-)
4 Magnesium 11 Carbondioxide (CO2)
5 Potassium 12 Hydroxyl (OH-)
6 pH 13 Total Solids
7 Electrical Conductivity (EC)    
Analyses on Plant / Leaf Tissues
# Element # Element
1 Total Nitrogen (N) 5 Magnesium
2 Potassium (K20) 6 Sodium
3 Phosphate 7 Trace Elements (Mn, Fe, Zn & Cu)
4 Carbonate