© 2
2
25,
44,7 MAPS ALREADY PUBLISHED
Soils Exploratory Maps and Land Capacity Maps are the maps
published in the scale 1:1.000,000.
Work progress
ACCUMULATED PRODUCTION TO ACCOMPLISH
N? Sheets Sa. Km N? Sheets Sq. km
9 2.259.750 10 2.057.160
„557 MANUSCRIFTS READY TO BE PUBLISHED
Work progress
ACCUMULATED PRODUCTION TD ACCOMPLISH
N* Sheets Sq. Km N? Sheets Sg. Km
11 2,827.180 8 1,589,730
OTHER ACTIVITIES:
Investigation of soils carried out by the RADAM-
BRASIL Team has shown a significant diversification of their -
potentiality due to the climatic conditions and the parent rock.
A considerable variety of fertile soils have been
found in the Brazilian Northeastern Region but very poor in
water content, requiring irrigation for agricultural use. In
the Amazon Region a reverse problem is encountered: fertility
is the problem and not the climate.
After the expressive amount of observations and la
boratory investigations carried on the team feels prepared to
state that in the Amazon Region soils are predominantly of low
natural fertility, eventhough the physic properties are fairly
good. Qf course they can come to be very productive if a ratio