Table 2.

Recent studies on the effects of OMWs on plants growth and yield. * indicates the type of OMW and the plant growth performance

Plant Organism	OMW				Plant Growth Performance		Notes	References
	OMWW		OP		Positive	Negative
	Raw	Treated	Raw	Treated
Italian ryegrass		*			*		Germination index	[132]
Olive trees			* POC from MPD	* POC from MPD	*		Long-term field study	[110]
Maize	*				*		Field trials calcareous soil	[120]
Durum wheat Barley	*				*		Field trials	[103,105]
Olive trees	*				*		Long-term field study	[119]
Olive trees	*			*	*		Long-term field study	[133]
Faba bean	*				* dose 25 m3/ha		Pot trials with different doses	[97]
Olive trees	*				* Olive grove yield		Long-term field study	[122]
Grapevine	*				*		Long-term field study (11 years)	[99]
Olive plantlets			*			*	pot trials in greenhouse	[134]
Winter Weath	*	*			* (OMWW treated)	* (OMWW raw)	Field trials	[123]