Characterization, Classification and Evaluation of Soils in Semi-arid Region of Mahanandi Mandal in Kurnool District of Andhra Pradesh Supriya K., Naidu M.V.S.1,*, Kavitha P.2, Reddy M. Srinivasa2 Department of Soil Science and Agricultural Chemistry, S.V. Agricultural College, Acharya N.G. Ranga Agricultural University, Tirupati, 517502, Andhra Pradesh 1ICAR-Saline Water Scheme, ANGRAU, Bapatla, 522 101 2Agricultural college, ANGRAU, Mahanandi, 518502 *Corresponding author Email: mvsnaidu66@gmail.com
Online published on 2 September, 2019. Abstract Ten representative pedons from surroundings of Mahanandi mandal in Kurnool district, Andhra Pradesh were studied for their morphological and physicochemical properties, and nutrient status. These soils were deep to very deep, neutral to moderately alkaline (pH 7.3–8.3), non-saline (0.19–1.00 dS m−1), low to medium in organic carbon (0.2–7.5 g kg−1) and low to high in CEC [4.31–52.11 cmol(p+)kg−1 soil]. Soils were low to medium in available nitrogen (62.7–545.7 kg ha−1), low to high in available phosphorus (2.7–65.7 kg ha−1), high in available potassium (149–1125 kg ha−1) and deficient to sufficient in available sulphur (1.3–79.2 mg kg−1). The DTPA extractable Zn (0.02–4.97 mg kg−1), Fe (0.46–22.56 mg kg−1), Cu (0.02–0.55 mg kg−1) and Mn (0.27–30.80 mg kg−1) were deficient to sufficient. Pedon 2 having argillic (Bt) horizon was classified as Typic Haplustalfs and other pedons with cambic horizon (Bw) were classified as Fluventic Haplustepts (pedons 1, 4, 6, 8, 9 and 10), Aridic Ustorthents (Pedon 5), Typic Haplustepts (Pedon 3) and Vertic Calciustepts (Pedons 7). Top Keywords Soil classification, cambic horizon, argillic horizon, Inceptisols, Alfisols. Top |