Author(s):

US Tiwari, SD Dubey, RK Pandey and Karam Husain

Abstract: A field experiment was conducted in Rabi season 2013-14 at Nawabganj Research Farm of C. S. Azad University of Agri. & Tech., Kanpur U.P. to find out integrated nutrient management effect on linseed (Linum ustiatissimum L) with ten treatments i.e. (i) 125 % RDN (ii) 100 % RDN (iii)100% RDN + 25 %N through FYM (iv) 100 % RDN + 25 % N through FYM + 30 kg S ha^-1 (v) 100 % RDN + 25 % N through FYM + 30 kg S ha^-1 + 5 kg Zn ha^-1 (vi) 75 % RDN (vii) 75 % RDN + 25 % N through FYM (viii) 75 % RDN + 25 % N through FYM + 30 kg S ha^-1 (ix) 75 % RDN + 25 % N through FYM + 30 kg S ha^-1+ 5 kg Zn ha^-1 (x) Control, in randomized block design with three replications. The soil of the experimental field was slightly alkaline in nature having pH 8.3, ECe 0.35 dSm^-1, low in organic carbon (0.35 %), available nitrogen (170 kg ha^-1), available Sulphur (16 kg ha^-1) and available Zn (0.54 ppm) and medium in available phosphorus (12.0 kg ha^-1) and Potassium (132 kg ha ^-1).The result showed highest grain yield (17.0 q ha^-1) and stover yield (34.80 q ha^-1) with the application of 100 % RDN + 30 kg S ha^-1 + 5 kg Zn ha^-1, which was 98.8 and 85.0 percent higher than lowest grain (8.90 q ha ^-1) and stover (18.18 q ha^-1) yield at control. Substitution of 25 % N through FYM with 75% RDN produced grain yield (11.60 q ha ^-1) and stover yield (23.41 q ha^-1) which was found at par to the yield of 100% RDN indicting the possibility to reduce N fertilizer need by 25% through the application of FYM along with chemical fertilizers. Application of 30 kg S ha^-1 produced maximum 32 percent higher grain and 16.66 percent higher straw yields than 100% RDN. Likewise, S application of 5 kg Zn ha^-1 also produced 7.27 percent increase in grain and 5.27 percent increase in straw than 100 % RDN + 25 % N through FYM + 30 kg S ha^-1.Maximum increase in N, P, K, S and Zn content and uptake was also recorded with 100 % RDN + 25 % N through FYM + 30 kg S ha^-1 + 5 kg Zn ha^-1 in comparison to other treatments. Oil content, oil yield and protein content were also recorded maximum with 100 % RDN + 25 % N through FYM + 30 kg S ha^-1 and 5 kg Zn ha^-1.

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