tIn order to investigate the effects of sulfur (S) oxidation and vermicompost (V) application on black seed(Nigella sativa L.) oil yield and its nitrogen and phosphorus uptake, a two-year field experiment wasconducted at ...

, phosphorus content insaffron parts and phosphorus acquisition efficiency significantly increased with increasing irrigationrounds. Overall, although four irrigation rounds are highly recommended, applying at least two rounds(in summer and before flowering...