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Sunday, 30 July 2017
Saturday, 29 July 2017
GATE 2018 EXAM DATE ,SYLLABUS, ELIGIBILITY and WHAT'S NEW in GATE 2018(official)
GATE 2018 Official poster released:
IMPORTANT DATES:
DATE OF EXAMINATIONS:
IMPORTANT DATES:
starting date of online application: 01st September 2017
closing date of online application: 05th October 2017
DATE OF EXAMINATIONS:
03rd ,4th , 10th ,and 11th FEBRUARY 2018
ORGANIZING INSTITUTE :IIT GUWAHATI
APPLICATION FEE:
ELIGIBILITY for GATE 2018:
EXAM CENTER :
VALIDITY OF GATE 2018: 3 YEARS
soils of jharkhand
The soil of Jharkhand may broadly be classified into following five groups
a. Red soil
b. Sandy soil
c. Black soil
d. Laterite soil
e. Red micacious soil
a. Red soil :
These soils are made by the decomposition of crystalline
metamorphic rock such as granite, gneiss, etc. The colour of the soil is red at some
places and at many places it is just like chocolate which is dark in colour. This type of soil is found in most areas of Jharkhand except in narrow trough basin of
Damodar and in Rajmahal areas.
red soil |
i. It is less fertile
ii. It has high iron content
iii It is porous
iv. It has adequate quantities of lime and potash
v. It lacks nitrogen phosphorus and humus.
b. Sandy soil :
This type of soil is found in east Hazaribagh and
Dhanbad. These two areas compose the trough basin of Damodar, which is famous
for sandy soil. Such soil is formed by the gradual decomposition of sandy loan and
sandy soil.
sandy soil |
i It is yellowish
ii It is poor humus content
iii It is less fertile.
c. Black soil :
The soil is found in the Rajmahal areas. The soil of
Rajmahal contains basalt. The main ingredients are Kaolin, Potash and Iron-Oxide.
This soil has higher proportion of clay, which has a very high water retaining
capacity. The areas with higher elevation has thin layer of black soil with light
colour but in areas with lower heights, the soil has thick layer and dark colour.
black soil |
The main properties of this soil are given below:
i. It has water retaining capacity
ii. It contains lime, iron, magnesia etc
iii. It becomes sticky after getting water.
iv. The soil of this type in lower areas is more fertile.
d. Laterite soil :
The laterite soil is found in the highlands of Rajmahal,
western Ranchi plateau and Pat region of south Palamu, and Dhalbhum area of
Singbhum. The main components of this soil are aluminum, iron oxide and
manganese oxide. The main defect of the soil is acid reaction. The main crops of
this soil are castor, pigeon pea, etc.
laterite soil |
The main properties of the soil are as follows:
i It has high iron content.
ii It has low content of phosphorous, nitrogen and potash.
iii It is prone to acid reaction.
iv Its yield is low.
e. Red micacious soil :
This soil is mostly found in mica areas of
Jharkhand such as Koderma, Mandu, Jhumri-Tilaiya, etc. This soil becomes light
pink in areas of higher elevation.
Studies have shown that soil acidity together with low potassium and sulpher content, moderate nitrogen together with deficient zones of zivc, copper
and born certainly indicate in general the low fertility of the soil in Jharkhand. It requires attention on soil management practices for optimum agricultural
production.
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