Effect of plant density on brown sarson (Brassica campestris subsp oleifera var. brown sarson) under different levels of nitrogen and phosphorus

A field experiment was conducted on silty clay-loam soils of Shalimar durin g winter (rabi) season of 1995-96 and 1996-97, to study effect of planting densities on newly released variety 'KS 101' of brown sarson [Brassica camp estris L. ssp. oleifera (Metzger) Sinsk. var. brown sarson] with different N and P rates. 'KS 101' ('Gulchein') performed better when sown at plant de nsity of 33 plants/m(2) (30 cm x 10 cm). For seed yield the variety respond ed significantly to nitrogen up to 60 kg/ha; however for different phosphor us levels (30, 45 and 60 kg/ha) it behaved alike. Among various treatments, N @ 60 kg/ ha gave highest returns and benefit : cost ratio. Although vari ation in P levels did not influence oil content, an increase in planting de nsity up to 50 plants/m(2) increased the oil content, whereas the reverse w as true with N application.