Abstract:
Pot culture experiment was conducted to study the effect of different sources of sulphur on
yield and quality of groundnut. Four organic sources (farmyard manure, poultry manure,
vermicompost and sewage sludge) Were evaluated in comparison with single super phosphate,
all applied on equal S basis @75 kg S ha-l. The six treatments, including a no-S as control
were replicated four times in a completely randomized design. _.
The results revealed that the aadition of sulphur markedly incieased the pod yield over
control (no sulphur application). Each source was significantly different from the other.
Among the sources poultry manure recorded the highest yield (41 .6 g pot-t) and vermicompost
registered the lowest value (27 .0 g pot-'). It may be due to the higher availability of other
nutrient poultry manure.
Results also explained that sulphur sources significantly increased the oil content but no
significant impact among sources. As the oil content or any quality parameters of oil seed
crops is genetic factor and can't be altered much through agronomic practices may be the
reason. Superphosphate recorded the lowest value among the sulphur sources. But it was
significantly superior to control.
The crude protein content in groundnut kernel indicated that sulphur application significantly
increased the crude protein percentage over control. Crude protein content in organic manure
heated kernels was significantly higher than the inorganic chemical fertilizer treatment. Among
sources, poultry manure ranked first ( 13.68%) and vermicompost recorded the lowest value
(11.53%).
