Agropedological Evaluation of Soils Using Remote Sensing Technique

Agropedological evaluation was carried out in Nagaon district of Assam,India using remote sensing technique using physiographic map prepared from Landsat imagery(1986) of the study area at 1;2,50,000 scale.Five soil profiles were collected from uthori(P1),Amlakhi(P2),Bebejia(P3),Rupahi(P4) and Amlakhi(P5)representing low hill,piedmont,younger alluvial plain,lower flood plain and active flood plain.Horizon-wise soil samples were collected and analysed for morphological and physico-chemical characteristics and the data were interpreted for pedogenic development,productivity potential and suitability for some major crops.The morphological features like colour,texture and structure and physico-chemical characteristics like ph,organic C,N,P,K,CEC varied widely among the profiles.The soils were classified as Typic Dystrudept(P1),Typic Hapludult(P2),Acquic Dystrudept(P3),Fluventic Humic Dystrudept(P4) and Acquic Udifluvent(P5).The soils exhibited more horizonation and pedological development.