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A field experiment was conducted during Rabi season of 2012-13 at Regional Agricultural Research
Station, Lam, Guntur in field No.3, with an aim to find out effect of foliar nutrition on antioxident
enzymes, photosynthetic rate, dry matter production and yield of mung bean under receding soil
moisture condition in split plot design with irrigation and no irrigation as main treatments and
foliar sprays as sub treatments. Under receding soil moisture condition (moisture stress) KNO3 @
1% proved superior over other foliar sprays by recording more plant height, leaf area, shoot dry
weight, and photosynthetic rate by maintaining high leaf proline content, peroxidase activity, SOD
activity. Under irrigated conditions urea @2% recorded higher yield. KNO3 @ 1% gave higher
yields under receding soil moisture condition compared to other foliar sprays. Among all treatments
controlled (no spray) under unirrigated conditions recorded lower yields due to moisture stress and
nutrient deficiency.
Keywords: Receding soil moisture, Foliar spray, Antioxident, KNO3, Mung bean.