Effects of two phase olive mill pomace compost on the growth of olive saplings in Turkey

N. Varol, H. Karaman, E. Aydoğdu, K. Ekinci
Compost used in this study was obtained from composting of two-phase olive mill pomace with separated dairy manure, poultry manure, and straw using aerated static pile composting methods. The effects of compost on the growth of olive saplings were determined by pot experiments in greenhouse conditions. Results showed that olive saplings grown in growing media containing different rates of composts (25, 50, 75 and 100%) were much better than control plants grown in standard growing media. It was found that all the macro and micro element levels of samples taken from all pot mixtures to determine the nutritional status of organic olive saplings were sufficient for compost application at different doses. Nitrogen, calcium and magnesium deficiencies of macro elements and iron, manganese and copper deficiencies of micro elements were observed in leaf samples. Nitrogen, calcium, magnesium, manganese and copper values were low in leaf samples of control group. Nitrogen and some micro element deficiencies were observed in the control group saplings. As a result of the study, it was determined that two-phase olive mill pomace, which is harmful to the environment, can be composted and used in plant nutrition, soil amendment and as organic matter source in olive saplings cultivation.
Varol, N., Karaman, H., Aydoğdu, E. and Ekinci, K. (2020). Effects of two phase olive mill pomace compost on the growth of olive saplings in Turkey. Acta Hortic. 1280, 39-46
DOI: 10.17660/ActaHortic.2020.1280.6
Olea europaea, organic farming, composting, two-phase olive mill pomace

Acta Horticulturae