Pachauri, S.P.Maurya, Rajani2022-08-122022-08-122022-07https://krishikosh.egranth.ac.in/handle/1/5810186288A field experiment on “EFFECT OF SULPHUR AND BORON ON NUTRIENT UPTAKE AND YIELD OF URD BEAN-TORIA GROWN IN MOLLISOL” was conducted at E1 block of Norman E. Borlaug Crop Research Centre, during Kharif and Rabi Season of 2021-22 and laboratory work was conducted in micronutrient laboratory, Department of Soil Science, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand. The soil of the experimental site was sandy loam in texture with pH of 6.85 and EC of 0.22 dSm-1, medium in organic carbon (0.51 %), low in mineralisable nitrogen (184.98 kg ha-1), medium in available phosphorus (10.96 kg ha-1) and potassium (190.40 kg ha-1). It was sufficient in available S (11.40 ppm), DTPA extractable Fe (13.27 ppm), Mn (4.26 ppm), Cu (0.56 ppm) and Zn (0.57 ppm) but it was deficient in hot CaCl2 extractable B (0.385 ppm). The experiment was laid in randomized block design, with 3 levels of boron (0, 1 and 2 kg B ha-1) and 4 levels of sulphur (0, 20, 40 and 60 kg S ha-1) and there were 4 replications of each treatment. Urd bean (cv. Pant Urd 31) and a residual crop of Toria (cv. Uttara) were taken as test crops. Recommended dose of fertilizers were applied for both, Urd bean as well as Toria crop, as basal application. Basal doses of abovementioned boron and sulphur levels were applied only to Urd bean crop and its residual effect was seen in succeeding Toria crop. Application of B at 1 kg ha-1 and 2 kg ha-1, significantly, increased grain yield of Urd bean crop by 11.58 % and 19.47 %, respectively, as compared to control. These boron doses were also significant in enhancing nutrient (S, B, Fe, Mn, Cu and Zn) uptake by Urd bean crop, as compared to control. Residual effect of these boron doses, also, significantly increased grain yield and nutrient (S, B, Fe, Mn, Cu and Zn) uptake of succeeding Toria crop, as compared to control. Application of S at 20 kg ha-1, 40 kg ha-1and 60 kg ha-1 significantly increased grain yield of Urd bean crop by 11.05 %, 20 % and 17.89 %, respectively, as compared to control. These sulphur doses were also significant in enhancing nutrient (S, B, Fe, Mn, Cu and Zn) uptake by Urd bean crop, as compared to control. Residual effect of these sulphur doses, also, significantly increased grain yield and nutrient (S, B, Fe, Mn, Cu and Zn) uptake of succeeding Toria crop, as compared to control. Since, there is no significant difference between 1 kg B ha-1 and 2 kg B ha-1 and also between 40 kg S ha-1 and 60 kg S ha-1, with respect to grain yield and nutrient uptake of Urd bean-Toria crops, application of B at 1 kg ha-1 and S at 40 kg ha-1 is advisable. Post-harvest fertility analysis of soil revealed that there was improvement in nutrient status of soil.EnglishThesis