Grain yield and harvest index also influenced significantly with the application of zinc and silicon and maximum grain yield was recorded with the application of 150:80:40 NPK + two Zn spray 0.5% (65.88 q ha-1) followed by treatment 150:80:40 NPK + Two Si spray @ 0.3% (63.46 q ha-1) and lowest in T1 control (30.12 q ha-1). Harvest index was recorded non-significant.
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Singh et al. (2020) studied this question.
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