Author(s):

Anand Sen, SFA Zaidi and Suresh Kumar

Abstract: A bench mark field survey experiment was conducted to assess the availability of micronutrient (Fe, Cu, Zn, Mn, Mo and B), macronutrient (N, P, K Ca, Mg and S) status and their correlation in soils of Eastern Plain Zone (E.P.Z) of U.P. The 62 soils samples were collected and analysed.The range and average values of pH (7.3-8.5) 7.89, OC (2.1- 4.5) 3.59 g kg^-1, and E.C (0.19-0.69) 0.41dSm^-1 were recorded. The ranged and average value of available macronutrient were recorded as N, (160-290) 224.8 kg ha^-1, P: (7.8-19.5) 13.8 kg ha^-1, K:( 140-290) 203.3 kg ha^-1,exchangeable Ca:( 0.19-0.39) 0.28 cmol(p⁺)kg^-1 exchangeable Mg:( 0.17-0.43) 0.30 cmol (p⁺) kg^-1 and S (7.4-22.8) 14.2 ppm. Micronutrients were recorded in sufficient range such as Zn (0.35-1.29) 0.71 ppm, Fe (1.75-9.10) 3.23 ppm and Mo (0.10-1.33) 0.68 ppm, Cu (0.20-1.45) 0.56 ppm whereas B and Mn were in deficient range and average value of B (0.11 -1.80) 0.43 ppm and Mn (0.11-2.86) 1.41 ppm. The significant positive correlation were found among Fe with Mn, B, N, and Ca; Zn with Cu and Mo; Cu with Mo; Mo with B, N with Ca; Mg and S; Ca with Mg and S; Mg with S; pH with K and Ca; Organic carbon with N, Mg, S and F; Cu with N; whereas significant negative correlation were observed among Mo with N; Zn with N; P with Ca; pH with N, Mg and S; and EC with Cu.

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