Indian Journal of Agricultural Research, volume 47 issue 6 (december 2013) : 523-528
EFFECT OF BIOLOGICAL SLUDGE AND POLYACRYLAMIDE ON IMPROVEMENT OF TOP SOIL AGGREGATION IN TYPIC CALCIXEREPTS OF KARKAJ, IRAN
Tarlan Sheikhavandi*, Ali Asghar Jafazadeh, Mohammad Reza Neyshabouri, Shokrollah Asghari1
1Department of Soil Science,
University of Tabriz, Tabriz, Iran