A study on the effect of sulphur and sowing dates on yield and yield attributes of wheat

摘要

A field experiment was conducted to evaluate the effect of sulphur and dates of sowing on yield and yield contributing characters of two wheat varieties. Non Calcareous Dark Grey Flood Plain Soil at the Bangladesh Agricultural University Farm, during the rabi season of 1996-97. The experiment was laid out in a split plot design assigning the sowing dates (November 22 and 29) in the main plot, varieties and sulphur levels (0, 20, 30 and 40 kg S ha~-1) in the sub-plot having three replications. The results obtained from the study revealed that sowing dates exerted a significant effect on agronomic attributes except plant height, number of spikes/m~2, length of spike and straw yields remained unaffected. Grain yield was found decreased progressivelyas the sowing was delayed. Varieties differed significantly in respect of number of spikes m~-2, length of spikes, 1000-grain weight and straw yield. Agronomic attributes and the yield of the crop (grain and straw yields) were significantly influenced bysulphur levels. Significantly lowest grain yield was obtained from 0 kg ha~-1 but with the increase of higher concentration of sulphur, the result differed. Significant positive relationship was also noticed in most of the cases when the relationship patterns were established between yield and yield contributing characters of wheat.