Harshitha, MBudhihal, S LPrathyusha, CVeena, G Amrutha2015-12-102015-12-102014-04Harshitha M, Budhihal S L, Prathyusha C, Veena G Amrutha. Studies on Physical, Chemical and Amorphous Constituents of Associated Red and Black Soils: A Case Study in Hatti Schist Belt of North Karnataka. International Journal of Applied Biology and Pharmaceutical Technology. 2014 Apr-June; 5(2): 1-4.0976-4550http://imsear.searo.who.int/handle/123456789/167791Associated red and black soils of the transect from Hira region of Hatti schist belt were studied for their properties. Soils were moderately deep to deep, reddish brown (5YR 3/4) to dark black (10YR3/2), clay in texture. The pH ranged from 7.56 to 7.7, EC from 0.4 to 0.44dSm-1, low to medium in organic carbon, moderate in CEC (40.1 – 54.3 c mol (p+) kg-1). Free iron oxides ranges from (0.6-3.2%), Na2CO3 extractable free silicon ranges from (0.4-3.1%) and Na2CO3 extractable free aluminium ranges from (0.2 - 2.5%).enAssociated red and black pedonsfree ironsiliconaluminium oxidesArticle