Mahapatra, B.S.Panwar, Shobhit2019-01-282019-01-282018-07http://krishikosh.egranth.ac.in/handle/1/5810092637Studies on “Effect of mulch and sulphur sources on the productivity and quality of yellow sarson (Brassica rapa L. var. yellow sarson)” were conducted during rabi season of 2017-18 at N.E.B. Crop Research Centre, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar. The investigation was conducted on a silty clay loam soil in split plot design with three levels of maize stover mulch in main plots and four sulphur sources viz. gypsum, bentonite sulphur, iron pyrite and elemental sulphur in sub plots with three replications. The yellow sarson variety used in the experiment was Pant Peeli Sarson-1. Recommended doses of NPK were applied for the crop. The results revealed that treatment combination of maize stover mulch @ 5t /ha and bentonite sulphur resulted significantly higher plant height, number of primary branches, dry matter accumulation, root dry weight, siliquae per plant, seeds per siliqua, length of siliquae and 1000-seed weight over other treatment combinations. Significantly higher seed yield, stover yield and biological yield were found under mulching @ 5t/ha and bentonite sulphur compared to remaining treatment combinations. Quality parameters viz. oil and protein yield were found significantly higher under mulching @ 5t/ha and bentonite sulphur. Nutrient content in plant and soil were found higher under mulching and bentonite sulphur. Minimum weed dry matter was observed under mulching @ 5t/ha at 60 DAS. No influence of sulphur was noticed on weed dry matter at 60 DAS. The net returns and B: C ratio was found highest in the 5 t/ha maize stover mulch and bentonite sulphur combination. From the above study it could be inferred that application of maize stover mulch @5 t/ha and bentonite sulphur produced maximum yellow sarson yield and showed highest B: C ratio under tarai conditions of Uttarakhand with recommended doses of NPK to Pant Peeli Sarson-1.ennullThesis