- Titre : Impact of compost agronomic application on soil chemical properties and olive trees (Olea europaea, L) growth parameters
- DOI: 10.71751/JAAOGv1i1y2022-42-54
- Auteur : Salwa Magdich; Béchir Ben Rouina
- Abstract : The effects of compost agronomic application were evaluated in a Tunisian olive grove. Two treatments were selected: The first plot was spread by 5 T ha-1 of compost and the second plot was not amended, and served as a control during the crop season 2018/2019. This study aimed to investigate soil chemical properties, plant growth parameters, photosynthetic pigments, leaf mineral nutrient and olive oil quality of adult Chemlali olive trees subjected to compost application. The findings revealed an improvement of organic matter (39.8%), total nitrogen (41.3%), available phosphorus (24.5%) and exchangeable potassium (25.1%) soil contents, in amended plot with waste date compost compared to the control in superficial horizon (0-20 cm). In fact, a vegetative activity improvement according to the compost rate spread was noted with a shoot length increment equal to 20.42% in olive trees amended by compost. Moreover, significant raise of photosynthetic pigments contents in compost amended olive trees was noticed. The compost spreading significantly increased the mineral contents of leaves (N, P, K, Ca and Mg). Finally, the oil quality parameters did not show any significant difference. With the only exception of the phenol content, this was significantly higher in the oils extracted from compost amended olive trees than the control.
- Pagination : 42-54
