Effect of different levels and sources of sulphur on soil properties & yield of mustard (Brassica juncea L.)

Abstract

A field experiment was carried out at Research Farm, Narendra Deva University of Agriculture & Technology, Narendra Nagar (Kumarganj), Ayodhya (U.P.) during Rabi season 2015-16 to study the “Effect of different levels and sources of sulphur on soil properties & yield of mustard (Brassica juncea L.)”. The trial was laid out in Randomized Block Design with seven treatments viz., RDF (NPK: 120:60:60 kg ha-1), RDF + 20 kg S ha-1 through SSP, RDF + 40 kg S ha-1 through SSP, RDF + 20 kg S ha-1 through Sulphur Bentonite, RDF + 40 kg S ha-1 through Sulphur Bentonite, RDF + 20 kg S ha-1 through Phosphogypsum, RDF + 40 kg S ha-1 through phosphogypsum with three replications on silt loam soils having low organic carbon (0.32%), nitrogen (145.5 kg ha-1), medium phosphorus (8.78 kg ha-1) and potassium (188.5 kg ha-1). Result showed that grain yield (19.36 q ha-1) and stover yield (58.50 q ha-1) were significantly higher under RDF + 40 kg S ha-1 through SSP. Harvest index was not influenced significantly due to different sulphur levels and sources. The soil pH, EC and OC in soil of experimental field were not influenced significantly due to different levels and sources of sulphur, but available nitrogen, phosphorus, potassium and sulphur were significantly maximum with the treatment RDF + 40 kg S ha-1 through SSP.