A preliminary study of the effect of phosphorus fertilizers on the yield of fruits of Ammi majus L. grown in Egypt and their content of furocoumarins
Balbaa, S.I.; Hilal, S.H.; Haggag, M.Y.
Egyptian Journal of Pharmaceutical Sciences 16(3): 351-358
Calcium superphosphate was applied to the soil and/or as a foliar spray to Ammi majus as follows: (1) 100 kg/feddan in 2 treatments on 8 November and again on 16 March; (2) 50 kg/feddan on 22 November followed by 500 litres of 2% spray divided into 5 equal treatments between 4 February and 16 March; (3) 200 litres of 2% spray as 5 equal treatments between 4 February and 16 March. Controls received no P2O5.