@article{article_1796380, title={Effects of compost and compost water extract derived from agricultural wastes on yield and nutritional composition of Lepidium sativum microgreens}, journal={Biological Diversity and Conservation}, volume={19}, pages={25–35}, year={2026}, DOI={10.46309/biodicon.2026.1796380}, url={https://izlik.org/JA45FE94FW}, author={Ceylan, Faik and Arslan, Recai and Akçay, Çağlar}, keywords={compost, water extract, microgreens, Lepidium sativum, nutrition elements}, abstract={Purpose: The aim of this study was to evaluate the yield, chlorophyll and carotenoid content, and nutritional profile of Lepidium sativum microgreens cultivated with compost, compost water extract, and peat. Method: Control (100% peat), C100 (100% compost), C50 (50% peat+50% compost), C25 (75% peat+25% compost), and WE100 (100% water extract), WE50 (50% water extract), and WE25 (25% water extract) obtained from compost were used for cultivation of L. sativum microgreens under LED (light-emitting diode) light source. Fresh weight of shoot (mg/shoot), fresh yield (kg/m2), dry biomass (g/m2), and chlorophyll, carotenoid, and nutrition element content of microgreens were measured. Estimated daily intake (EDI) of macro- and microelements of microgreens was calculated. Findings: While the highest mean fresh weight of shoot of L. sativum microgreens was measured as 27.65 mg/shoot in media of C50, the highest fresh yield and dry biomass of microgreens were measured as 1.870 kg/m2 and 94.81 g/m2 in media of WE50. Chlorophyll a content of microgreens cultivated in C100, C25, and WE100 was significantly lower than control (P <0.01, P <0.01, and P <0.05, respectively). Total chlorophyll content of microgreens in C25, rather than other media, was significantly lower compared to control (P <0.05). Chlorophyll b and carotenoid contents in all media were not significantly different compared to those of control. N content of L. sativum microgreens cultivated in WE100 was significantly higher than control at the significant level of P <0.05. Contents of Mg, Zn, and Na of microgreens of WE100 were lower compared to those of control at the significant levels of P <0.01, P <0.01, and P <0.0001, respectively. There was not any significant difference in contents of P, K, S, Ca, Fe, Mn, and Cu between microgreens of control and WE100. Total phenol content of microgreens in WE100 was higher than control at the significant level of P <0.05. Conclusion: There was a very low effect of application of compost water extract on nutrient elements of L. sativum microgreens. Their applications increased the yield of L. sativum microgreens. The use of compost for higher yields of L. sativum microgreens for substitution of peat was very attendant regarding limiting the use of peat materials.}, number={1}, organization={There in no supporting institution}