agriculture

2. Method
 A way of doing something
Assessing
Soil
 To make a judgment about (something)
 The top layer of the Earth`s crust

3. Layers of the Soil

4. Soil quality can be
sensed…
 from the way soil feels
 from how soil smells
 from how soil looks

5. Soil Analysis
 a valuable tool for agricultural
production.
 It has served as the basis for improved
fertilization as well as adoption of many
other production practices by farmers.

6. Laboratory Services
Division
 committed in many ways to give
emphasis on importance of sufficiently
broad support to farming communities.

7. Selection of Fields
 Paired farms using conventional and
organic agricultural practices should be
selected with similar environmental
characteristics.

8. Soil Sampling
 Sampling time should
be either in
Springtime, whenever
soil is not too wet and
not too dry, or in
Autumn prior to
subsequent tillage
operations.

9. Soil cores should be…
 divided into the three depth increments
and placed into separate sampling bags
(1-gallon zip locks)that are marked with
the location, date, and type of
management.

10.  Samples should be kept in a
refrigerator until ready for shipment
to the designated receiving
laboratory.
 Samples should be shipped as soon
as possible after sampling.

11. Laboratory Analyses
 Samples will receive documentation at
the receiving laboratory to create
metadata describing the environmental,
field, long-term history, and recent
management conditions.

12. Soil and Water Chemical
Analysis
 Many farmers cultivate their farms without ever
testing their soil. They are fortunate if their soil is
not deficient or toxic in nutrients, neither too acid
nor too alkaline.
 a soil test is the best starting point for putting things
right and keen growers have their soil tested
routinely each year.

13. Soil and Water Chemical
Analysis
 Professional soil testing is the most accurate
for macro and micronutrients and this is
conducted in a soils laboratory like the
Bureau of Soils and Water Management.

14. Soil Physical Analysis
 Soil samples from the field are analyzed
according to texture, structure,
permeability, bulk density and water
retention.

15. Soil Test Kit (STK)
 The STK is an inexpensive, quick, handy and
easy to use as soil testing tool. Results are
obtained within an hour. It is therefore useful
to farmers and extension workers to
determine on the spot what kind and amount
of fertilizer to use to a grown crop in a given
farm.

16.  The STK determines the pH, Nitrogen,
Phosphorus, and Potassium.
 It is a qualitative type of testing and
through color comparison, the deficiency
or sufficiency of the element can be
assessed.
PENTECOSTES, Aga C.
BSED 2F1