8. Winter :
A cool, dry winter marked by mild temperatures from
December through February;
Spring :
A hot, dry spring from March through May
Summar :
The summer rainy season, or southwest monsoon period, from
June through September;
Autumn :
Falling of leaves occur
The retreating monsoon period of October and November.
9.
Soils in Pakistan are rich in Basic but poor
in Nitrogenous matter.
The soils of Pakistan are derived from two types of
parent materials:
1. Alluvium, Loess and wind reworked sands. They
are of mixed mineralogy.
2. Residual material obtained from weathering of
underlying rocks.
10.
The soils of Pakistan can be classified into
the following six types:
1 : Alluvial Soils of the Flood Plains
2 : Alluvial Soils of the Bar Uplands
3 : Soils of the Piedmont Plains
4 : Desert Soils
5 : Soils of Potwar Plateau
6 : Soils of Western Hills
11.
Clay soil, composed of many small,
flat particles, feels sticky or plastic in
your hands. Clay comes in many
colors: red, yellow, bluish gray, or
almost black.
13.
Silt soils
Silt has an intermediate size between clay
and sand. It consists of small, gritty
particles that can pack down very hard. Silt
ranges in color from gray to tan, yellow, and
red. It’s usually not very fertile.
14. Loam contains various proportions of
clay, silt, sand, and organic matter. The
proportions of each determine how easy
the soil is to cultivate and how productive
it is.
Loam Soil
15. Organic soils
Dark in color, organic soils are composed
largely of peat moss or leaf mold. Since
organic soils are usually high in nitrogen,
they can benefit from fertilizers high in
phosphate and potassium.
