AgricultureEarth SciencesSoil SciencesSoil MechanicsSoil ScienceSoil-water RelationsLiming PracticesSoil CompactionLime Movement In SoilLime Slurry Application
THIS CONCERNS THE HORIZONTAL MIGRATION OF LIME IN COMPACTED BLOCK SPECIMENS OF TWO PLASTIC SOILS. LIME SLURRY WAS PLACED AT ONE END OF EACH SPECIMEN, AND LIME MIGRATION WAS PERMITTED FOR PERIODS UP TO 180 DAYS. SPECIMENS WERE THEN ANALYZED TO DETERMINE THE AMOUNT AND DISTANCE OF LIME MIGRATION. IT APPEARS THAT APPLYING LIME BY DRILLED-HOLE METHODS IS NOT USEFUL, BECAUSE THE AMOUNT AND DISTANCE OF MIGRATION IS SO LIMITED THAT THE BULK OF THE SOIL DOES NOT BENEFIT FROM THE ACTION OF THE LIME. MOVEMENT OF LIME WAS NOT DETECTED BEYOND ABOUT TWO INCHES, EVEN AFTER A 180-DAY PERIOD. MOISTURE MOVEMENT SEEMS TO HAVE BEE ESSENTIALLY COMPLETE AFTER ABOUT 14 DAYS.