TY - GEN AU - Bhanuprasad,V. TI - Comparative study of changes in soil properties affected by irrigation in vertisols of Nagarjunasagar command area ( Andhra Pradesh ) KW - Irrigation KW - Soil chemico physical properties KW - Morphogenesis KW - Climate KW - Rain KW - Clay minerals KW - Soil temperature KW - Soil water content KW - Plant nutrient KW - Organic matter KW - Hydraulic condultivity KW - Chemical KW - Composition ER -