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Interactive effect of nutrient and excess soil moisture stress in maize crops with special reference to Redox potential

Pradeep Kumar Rai, Monika Singh, Gyanendra Kumar Rai
International Journal of Chemical Studies , Volume 8, pp 839-840; doi:10.22271/chemi.2020.v8.i5l.10402

Abstract: Soil redox potential (Eh) and pH are fundamentals parameters for plants growth. Measuring soil redox is essential but complex due to the lack of measurement reliability resulting from high temporal variability and metrological challenges. This paper proposes practical advancements for measuring redox in aerobic soils using soil water testing kits. The study of soil redox (Eh) in maize crop field under excess soil moisture (ESM) stress condition. The experimental results showed statistically significant redox potential in various treatments, Maximum oxidation i.e. +501.67mv was noted in variety CM-500 under normal condition using nitrogen 60 kg ha-1 and phosphorus 40kg ha-1 (V1F1M0). Whereas, V2F1M0 and V2F3M0 were showed statistically at par. The maximum reduction was observed in V1F9M1 (-119.67mv). The study of maize growth in soil reveals extremely harmful impact resulting from too high and/or too low Eh values.
Keywords: nitrogen / stress / Crops / maize / Soil / treatments / redox / Extremely / Excess

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