Effects of Various Leaching Fractions on Cotton Yield and Soil Salinity

摘要

The objective of this study was to determine the effects of various leaching fractions on cotton yield and soil salinity. Leaching fractions were created by reduced water as moving away from the laterals and determined by depth percolation (LFt) usingtensiometer and electrical conductivity (LFec_(sw)) using suctions probes (EC_(sw)), respectively. The highest coefficient of determination between the leaching fractions and yield was found for LFec_(sw) values (R~2=0.61). A quadratic relationship wasfound between the LFa and the amount of salt removed from the soil. Salt removed from the profile was at its minimum value and its maximum value when the leaching fractions were 0.05 and 0.56, respectively.