Soil Report - Agriculture et Agroalimentaire Canada

(Footnotes for Table 10)
tOrganic soil ratings are for intensive use such as vegetable production.
*To determine the agricultural capability of map unit components with the help of
Table 10, consider the following map unit examples:
BRT1 BRT4 BRT4
C C>B CB
(1) Determine components of the map unit in the numerator
by referring to the legent of the soil map on which the
map unit appears, e.g . BRT1 is composed of Brant soils ;
BRT4 is composed of Brant and Tuscola soils .
(2) Determine the approximate proportions and slopes of
the map unit components from the denominators of the
units, e.g .
BRT1
C
has Brant soils on simple C (2-5%) slopes ;
BRT4
C>B
has Brant soils on simple C slopes, and Tuscola soils on
simple B (0-2%) slopes, in approximate 70 :30 proportions;
BRT4
CB
_ has Brant and Tuscola soils in approximately equal 50:50
proportions, again with Brant soils on C slopes, and
Tuscola soils on B slopes .
(3) To determine the capability of a map unit component,
simply combine it with the appropriate slope in Table
10, e.g .
BRT1
C
indicates that a Brant soil is on a C slope, so the
agricultural capability is class 2E ;
BRT4
C>B
indicates a Brant soil on a C slope with a class 2E capability,
and a Tuscola soil on a B slope with a class 2
capability . The agricultural capability of the map unit is
70% class 2E and 30% class 1, e.g. 2E'1 3 .
**Approximate capability ratings of poorly drained soils
without drainage improvements.