A field experiment was conducted on a sandy soil at Ismailia Agric.Res. Station, during the winter season of 2009/2010 to study the effect ofphosphorus at the rates of 0, 30 and 60 kg P2O5/fed, sulphur (0, 150 and 300kg S/fed) and zinc (0, 10 and 20 kg ZnSO4.7H2O/fed) as well as theirinteractions on canola yield (Serw 4 cv.), its components (i.e., plant height,number of branches plant-1, dry matter weight of shoots plant-1 at earlyflowering stage, number of pods plant-1 and 1000 seeds weight) and seedquality parameters (i.e., seed oil and protein contents).In general, the obtained results reveal that the application ofphosphorus, sulphur and zinc as solely treatments at the different addedrates display an effective role on increasing dry matter weight of shoots atearly flowering stage, nutrient contents of plant tissues at 90 days aftersowing, seed yield and its quality. However, applying such nutrienttreatments (i.e., P, S and Zn) showed significant increases for canola yieldand its components, which their values were maximized with increasing theapplied rates up to the highest ones for each nutrient, with superiority forapplied P treatment as compared to either S or Zn as a solely one.The application of the combined treatments, i.e., (P x S), (P x Zn) and(S x Zn) exhibited more pronounced increases for canola seed yield and itscomponents, with significantly differences as compared to such solely ones.These increases were maximized in case of the triple treatments of P incombination with S and Zn as compared to the applied combined coupleones. Also, increasing the applied rates of P, S and Zn significantlyincreased the contents of N, P and S in canola plant tissues at 90 days aftersowing. Meanwhile, Zn content in the plant tissues tended to decrease withthe applied P, the reverse was true for both applied S and Zn that resulted ina significantly increased for Zn-content of plant tissues. The triplecombination of P, S and Zn showed a synergistic relationship between themas well as the triple combined treatment 60, 300 and 20 kg fed-1 for P, S andZnSO4, respectively, was the most appropriate one for canola nutrition.Under the current experiment conditions, it could be concluded thatthe applied P, S and Zn as solely treatments showed a beneficial effect oncanola seed quality parameters, where seed oil and protein contentsexhibited significantly increases, and in turn in case of the combinedtreatments. Actually, the applied triple combined treatment of P60 S300 Zn20was optimal for obtaining the highest values in canola seed qualityparameters, i.e., greatest seed oil and protein contents.