Effects of vermicompost applications on Atterberg Limits and workability of soils under different soil moisture contents

The present research was conducted to assess the effects of vermicompost (VC) treatments under different soil moisture contents on consistency limits sandy-clay-loam (SCL) soils in which lettuce (Lactuca sativa var. crispa) cultivated a greenhouse. Liquid limit (LL), plastic (PL), plasticity index (PI), (Ic) and clay activity (A) values were investigated. Three VC doses (0, 2.5 5% w/w) applied at 3 (100% FC-field capacity, 50% FC 25% FC). Experiments replications over 27 experimental plots (3×3x3). Increasing LL PL observed with increasing doses. greatest (46.6%) (37.7%) obtained from treatment high content (100%FC) lowest (35.0%) (23.0%) control low (25%FC). had significant correlations (0.848**), (0.904**), PI (0.565**), Ic (0.668**) A (0.548**). (0.815**), (0.417*) (0.740**). As compared treatments, increased by 13.0% 21.9% respectively 2.5% treatments. greater than 0.75. Therefore, it that could be without any structural deformations or higher application. Moisture upper for optimal tillage destructions suggested as 26.8%, 34.9% 36.9% 0%VC, 2.5%VC 5%VC respectively. Present findings indicated extended range workability.