Influences of humic acid and sea force on olive tree growth (Olea europaea L.)‎

Abstract EN

This study was conducted during 2019 on olive trees Olea Europaea L.

cv.

sorani, growing in a private orchard located on the south around Erbil governorate, Kurdistan region, in order to identify the most suitable fertilizer, using two types of fertilizer ; humic acid and seaweed extract (sea force) applied as foliar applications each at four levels (0, 2, 4 and 6 ml.l-1).

).

vigor and fruit properties of trees were measured.

both fertilizers resulted in significant differences in the majority of studied parameters at 6 ml.l-1 concentration, in which chlorophyll, leaf area, number of leaves / shoot, shoot length, oil content, TSS, fruit diameter, fruit weight, pulp weight and seed weight were increased significantly compared to other concentrations of humic acid and seaweed.