Résumé
The interactive effect of nitrogen, row spacing and cultivars on composition of garlic bulb was studied at the Department of Horticulture, S.K.N. College of Agriculture, Jobner [Jaipur] during the years 1998-99 and 1999-2000. It was observed that interaction effect of nitrogen, row spacing and cultivars was found significant for nitrogen, sulphur, protein, volatile oil and moisture content of bulb. Maximum values for nitrogen, phosphorous, potassium, sulphur, ascorbic acid, protein, volatile oil and moisture content of bulb were observed when 200 kg nitrogen ha[-1] [N4] was applied in conjunction with row spacing 15 x 7.5 cm [S2] and cultivar "Jajavar local" [V3]. While the minimum values for these parameters were observed under N1S1V1 [50 kg nitrogen ha[-1] + 10 x 7.5 cm row spacing + cultivar "Yamuna safed"] treatment combination during both the years. Maximum values for T.S.S. were observed under N1S1V2 treatment combination