The effect of pre-plants on some soil chemical properties in organic onion (Allium cepa L.) and cucumber (Cucumis sativum L.) seed production

This study was carried out between 2013 and 2017 in the organic fields of Yalova Atatürk Horticultural Central Institute.
Organic onion (Allium cepa L.) and cucumber (Cucumis sativum L.) seeds were produced using broccoli (Brassica oleracea var. italica) and lettuce (Lactuca sativa L.) as pre-plants.
The effect of different pre-plants on some chemical soil properties was investigated.
The results of the study indicated that soil pH, total N (%), available P, Fe, Mn, Zn, Cu (mg kg^‑1) and exchangeable K, Ca, Mg (mg kg^‑1) were not changed, whereas, EC (dS m^‑1) and organic matter (%) content of soil were improved.
Electrical conductivity (EC) of the soil changed from 0.09 dS m^‑1 to 0.26 dS m^‑1 in the case of onion seed production with lettuce as the pre-plant.
The organic matter of the soil was 2.28% at the of the trial and increased to 2.49% in onion seed production with pre-plant lettuce.

XXX International Horticultural Congress IHC2018: II International Symposium on Organic Horticulture for Wellbeing of the Environment and Population

B. Albayrak, G. Beşirli, İ. Sönmez

onion, cucumber, broccoli, lettuce, soil, organic seed

https://doi.org/10.17660/ActaHortic.2020.1286.23