- Titre : Assessment of different Agricultural techniques on soil biological activity of olive tree in the Southern region of Tunisia
- DOI : 10.71751/JAAOGv1i1y2022-1-10
- Auteur : Haifa RAJHI; Jose Luis SANZ MARTIN; Ana MORATO; Habib BOUSNINA; MounirABICHOU
- Abstract : The climate change and water shortage have a huge drawback in the agriculture in the dry region. The case of drought was observed in the South of Tunisia in the Olive tree culture. Indeed, this degradation results from an obvious reduction in the soil activity. The plantation of the fig tree in intercalary in with Olive tree the soil plot (P4) and a soil Olive mill wastewater OMW spreading plot (P3) were involved in soil remediation in the Olive tree Field. These plots were compared with untouched soil (P1) and soil planted with Olive tree since 1900(P2). The P3 showed an important Organic Matter (2.14mg/g). However, the Soil fertility measured via Germination Index (GI) revealed an important rate (200.08 %) in P4. In contrast to the soil fertility of that P3 didn’t exceed the 60.20%. Correlation analyses between different soil parameters revealed significant trends; especially that observed by the negative correlation between respiration soil activity (Resp) and organic matter (OM) (r=-0.610, p<0.05). Indeed, a soil CO2 sequestration may take place. In addition, an important bacterial diversity revealed by Denaturing gradient gel electrophoresis DGGE molecular technique was observed in the P3. This result suggested the beneficial effects of OMW spreading on the soil bacterial biodiversity.
- Pagination : 1-10
