Pattanachatchai, N., Sumhirun S., Promatar, P. and Sompen, N. 2021. Effects of cultivated practices on the growth, phenolic content, antioxidant activity and Ca content of Chinese kale (Brassica oleracea L. var. alboglabra). International Journal of Agricultural Technology. 17, 3 (May 2021), 1015–1026.