M. SAADATIAN, G. PEYVAST, J. OLFATI, and P. RAMEZANI-KHARAZ, “Different species of basil need different ammonium to nitrate ratio in hydroponics’ system”, aas, vol. 103, no. 2, pp. 223–232, Dec. 2015, doi: 10.14720/aas.2014.103.2.7.