CHARACTERIZATION AND CLASSIFICATION OF SOILS OF RANGA REDDY DISTRICT FOR LAND USE PLANNING
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Date
2004
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Professor Jayashankar Telangana State Agricultural University
Abstract
111 the present stiidy fifteen representative pedons were selectecl fkom Ranga Reddy district of Andhra Pradesh. The Pedons selected were in thc locations of (1) Basashirabad (2) Chevella (3) Moinabad (4) Uppnl (5) Kisara (6) Saroornagar (7) Ibrahimpatan (8) Medchal (9) Sha~nirpet (10) Dollla (1 1) Tandur (12) Sha~nshabad (13) Pargi (14) Mominpet (15) Virkarabad. All the pedons were described for their ~norphological featurcs and horizonwise samples were processed for laboratory analysis on physical, physico-chemical and chemical characteristics. Rased on the lnorphology and analytical data all the pedons were characterised and classified. The cli~nate of the study area was semi arid. The pedons selected were confined to plains of cultivated lands. These pedons were shallow to very deep and have angular to sub angular blocky structure in surface horizons and sub angular blocky or angular blocky strnctare in sub surfacc horizons. Pedons at Moinabad, Uppal and Kisara had developed argillic horizons in sub surface layers. Cambic horizons were recognized in pedons at Ibrahimpatan, Mcdcha!, Pargi and Shamshabad. The analytical data revealed that these soils are sandy clay to sandy clily loam to clay in testure and showed an increasing trend of clay content with increase in depth, slightly acidic to alkaline and low in organic carbon. The don~inance of exchangeable bases on exchange co~llplex was in the order of ~a" > ~g" > K' ~a'. The soils were low in available nitrogen and phosphorus and ~nediu~n to high in available potassium with sufficient available copper, iron and manganese co~ltent but deficient in zinc. Based on morphology, physical, physico-chemical and chemical characteristics of soils, the pedons were classified as Vertisols, Alfisols, Inceptisols and Entisols. The soil and land resource inventory for assessing the soil ~.elatecl constraints has been prepared based on field survcy and laboratory investigations ant1 improved inter cropping s).stcm ol' cereals anti lcgu~nes are suggested based on the degree of suitability. Soil erosion. criisti~lg. co~npaction, low organic content and poor nutrient availability were identified as prominent soil related constraints.
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