UR Etude et Gestion des Environnements Urbains et Côtiers, Université de Sfax, Ecole Nationale d'Ingénieurs de Sfax, BP 1173-3038 Sfax, Tunisia.
Sci Total Environ. 2012 Jul 15;430:209-16. doi: 10.1016/j.scitotenv.2012.05.004. Epub 2012 May 29.
Olive mill wastewater (OMW) spraying effects onto olive-tree fields were investigated. Three OMW levels (50, 100 and 200 m(3)ha(-1)year(-1)) were applied over six successive years. Olive-crop yields, phenolic compounds progress, phytotoxicity and microbial counts were studied at different soil depths. Olive yield showed improvements with OMW level applied. Soil polyphenolic content increased progressively in relation to OMW levels in all the investigated layers. However, no significant difference was noted in lowest treatment rate compared to the control field. In the soil upper-layers (0-40 cm), five phenolic compounds were identified over six consecutive years of OMW-spraying. In all the soil-layers, the radish germination index exceeded 85%. However, tomato germination test values decreased with the applied OMW amount. For all treatments, microbial counts increased with OMW quantities and spraying frequency. Matrix correlation showed a strong relationship between soil polyphenol content and microorganisms, and a negative one to tomato germination index.
研究了橄榄厂废水（OMW）喷洒对橄榄树种植场的影响。在连续六年中，施加了三个 OMW 水平（50、100 和 200 m(3)ha(-1)year(-1))。在不同的土壤深度研究了橄榄作物的产量、酚类化合物的进展、植物毒性和微生物计数。随着 OMW 水平的应用，橄榄产量有所提高。在所有调查的土层中，土壤多酚含量与 OMW 水平呈递增关系。然而，与对照田相比，最低处理率没有显著差异。在土壤表层（0-40 厘米）中，在连续六年的 OMW 喷洒过程中鉴定出五种酚类化合物。在所有土层中，萝卜发芽指数均超过 85%。然而，番茄发芽试验值随施加的 OMW 量而降低。对于所有处理，微生物计数随 OMW 数量和喷洒频率的增加而增加。矩阵相关显示了土壤多酚含量与微生物之间的强关系，以及与番茄发芽指数的负相关关系。
