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CHARACTERIZATION AND CLASSIFICATION OF AGRI BIO DIVERSITY PARK SOILS OF ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD

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Title CHARACTERIZATION AND CLASSIFICATION OF AGRI BIO DIVERSITY PARK SOILS OF ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD
 
Creator KAMALAKAR, J.
 
Contributor AARIFF KHAN, M.A.
 
Subject clay, land resources, environmental factors, irrigation, area, humus, drying, soil density, soil sciences, economic resources
AGRI BIO DIVERSITY
 
Description In the present study twenty representative pedons were selected based on
topography from various physiographic units identified in Agri Bio Diversity Park of
Acharya N. G. Ranga Agricultural University, Rajendranagar, Hyderabad and on the
basis geomorphic units, soils were selected from Upland, Midland and Lowland. All the
pedons were studied for their morphological characteristics and horizon wise samples
were processed for physical, physico-chemical and chemical characteristics. Based on
morphology and analytic data profiles were characterized and classified. The soils were
very shallow to deep (5 to 60 cm), dark red to very dark greyish brown (2.5 YR 3/6 –
10YR 3/2), excessively well drained. The results showed that variation in soil
properties strongly influenced on land form and topography. The analysis of soils
indicated that the upland soils are shallow, midland and lowland soils are medium to
deep, but along the slope the depth of soil increased along with other physical
properties like clay, water holding capacity, infiltration rate and bulk density. The pH is
neutral to moderately alkaline (6.5 to 8.04), low to high in organic carbon (0.18 to 0.96
%), low to medium in CEC (11.5 – 26.5 c mol (p+) kg-1). The base saturation indicated
that non-fertile to very fertile and soil texture was sandy loam to sandy clay loam with
variation in relation to physiography. The upland soils were exhibiting higher bulk
density, particle density and lower water holding capacity, midland and lowland soils
were recorded higher infiltration rate and clay percentage. In all soils pH, OC and CEC
were consistently increased with depth. The organic carbon content and CEC were
higher in lowland soils, which might be due to the clay translocation and organic
carbon content accumulation. The soils are low to medium in available N (92.3 to 351.5
kg ha-1), low to medium in available P (6.22 to 28.2 kg ha-1), low to high in available
K (93.1 to 293.4 kg ha-1), deficient to sufficient in available S (7.1 to 21.2 mg kg-1).
The available micro nutrients are sufficient in all the profiles.
Based on morphological, physical, physio-chemical, chemical and
meteorological data, soils were classified according to the revisions of USDA soil
taxonomy (2006), that out of 20 profiles ten profiles (P4, 5, 7, 9, 10, 11, 12, 13, 19 and
20) belongs to order of Inceptisoils, six profiles belongs to order of Alfisols and other
remaining are Entisols. All soils were classified up to the family level. The upland soils
classified as coarse loamy, Iso-megathermic, Typic, Ustorthents (P16, 15 and 18).
Further, the profiles P4, 5, 10, 11, 12 and 20 were classified as coarse loamy, Isomegathermic
and Haplustepts and P2 were fine loamy, Iso-mega thermic, Typic
Rhodustalfs.
The soils of Agri Bio Diversity Park were classified on the basis of Landscape
position that is uplands, midlands and lowlands. Uplands recorded primarly Entisols
(P8, 15, 16 and 18) and midland soils with one Inceptisol indicating a transition from
Entisols to later Inceptisols. Further Uplands also recorded Inceptisol, where the
pedogenic process and the soil development initiated through horizination. The Alfisols
were observed in the midlands (P2, 3, and 6) and lowlands (P1, 11 and 17), illustrating
the development of a matured profiles, with a good depth in all horizons with sequence.
The study evidently indicate that the topographically and relief plays an important role
in soil development.
The detailed soil survey was conducted in Agro Bio Diversity Park.
Topographical map by using instrument total station was developed with scale 1:2500.
Further, on the basis of the topographical and planimetric data, two sites were identified
for the construction of check dams with an ultimate objective of conservation and
management at 0.5 contour interval was prepared.
The soil resource inventory for identifying the soil related constraints has `been
prepared based on field survey and laboratory investigation. Further the major
constraints like erosion, runoff and drainage resulting in soil material loss must be
controlled with a combination of various practices in a system approach especially with
trees, crops and an abiotic component may be integrated for the restoration and
conservation of soil and land resources including native flora and fauna insitu. Hence
appropriate soil and water conservation practices needed to be undertaken
simultaneously to conserve and preserve the native flora and fauna which are found in
Agro Bio Diversity Park of Acharya N.G. Ranga Agricultural University, Hyderabad. It
is concluded that characterization and classification of Agri Bio Diversity Park soils
basic information at initial stage is useful to overcome the soil management constraints
for further development and maintenance of park in better way.
 
Date 2016-05-31T15:42:10Z
2016-05-31T15:42:10Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66498
 
Language en
 
Relation D8913;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY