EFFECT OF SULPHUR AND ZINC ON THE GROWTH AND YIELD OF ONION

Abstract

A held experiment was carried out at Sher-e-Bangla Agricultural University Farm during the RaM season of 2008 to investigate the effect of sulphur and zinc on the growth and yield of onion cv. taharpuri. The red tarrece soil of Tejgaon was silty loam in texture having p14 5.6. The experiment was conducted in a RCBL) with three replications. The experiment comprises 4 levels of sulphur from gypsum (0 kg. 10 kg, 20 kg and 30 kg sulphur ha") and 4 Levels of zinc ftom zinc oxide (0 kg. 1 kg. 3 kg and 4 kg zinc ha"). There was combination of sixteen treatments including control (no fertilizer).lt was observed from the experiment that S and Zn alone or in combination significantly increased all the parameters studied. S20, Zn3 and Zn 4 individually gave the height results over the control in respect of most eases. Maximum results were found with (S 0 +7jn3 ) treatment combination in respect of all the studied parameters and S 0 + Zn0 produced minimum results. The highest N. P. K. S and Zn content in bulb and in leaf were also obtained with S20Zn3 treatment combination. Thus the findings of the experiment suggested that combined use of 20 kg sulphur with 3 kg zinc produced maximum growth and yield of onion in red terrace soil of the Tejgaon series. This fertilizer combination of sulphur and zinc not only gives maximum growth and yield of onion but also keeps the soil fertile and productive.