EFFECT OF NITROGEN AND SULFUR ON GROWTH AND YIELD OF MUSTARD (BRASSICA-JUNCEA)

A field experiment was conducted during the winter seasons of 1987-88 and 1988-89 on clay-loam soils at Udaipur, to study the effect of nitr ogen and sulphur on growth and yield of mustard [Brassica juncea (L.) Czernj. & Cosson]. Dry-matter production/plant and leaf-area index at 50% flowering stage were significantly increased with an increase in N levels during both the years. N @ 60 kg/ha was significantly superior to the other the levels of N for plant height, primary and secondary branches/plant. This level of N was also significantly superior to the other levels for seed yield. A significant improvement in growth char acters was also noticed due to S application over no S. Dry-matter pro duction/plant was significantly increased up to 150 and 100 kg S/ha du ring 1987-88 and 1988-89 respectively. A significant increase in leaf- area index, plant height, primary and secondary branches/plant was obs erved only up to 100 kg S/ha during both the years. The seed yield of mustard was significantly increased only up to 100 kg S/ha. The modes of S application did not attain the level of significance for all the growth characters and seed yield of mustard.