Abstract
Field experiment was conducted at the research Farm of JNKVV, Jabalpur (M.P) during the Kharif season of 2018 with three main treatments as single year application, alternate and each year zinc addition and five levels of Zn (0, 2.5, 5, 7.5 and 10 kg ha-1 as sub treatments in a split plot design. Results revealed that alternate year Zn application increased seed yield by 1.48 t ha-1 over single year. The difference recorded in between alternate year and single year Zn application was 0.33 t ha-1. Treatment 5.0 kg Zn ha-1 had significantly increased seed yield by 1.43 t ha-1 over control. The difference recorded in between 5.0 kg Zn ha-1 and in control Zn application was 0.38 t ha-1.
 The each year Zn application and 10 kg Zn ha-1 gave the highest protein (40.30%) and oil content (20.17%) in seed. Results explained that the higher release of Zn pools were observed with the each year Zn application and 10 kg Zn ha-1. The order of prevalence of Water soluble and exchangeable-Zn< Complexed-Zn<Amorphous Sesquioxide < Crystalline Sesquioxide bound-Zn< Residual-Zn.
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