Effect of nitrogen and phosphorus levels and Nano-DAP application on growth and yield of soybean {Glycine max (L). Merr.}
Keywords:
Nano-DAP, Soybean, Growth, Yield attributesAbstract
A field experiment was conducted in Randomized Complete Block Design with ten treatments, replicated thrice during kharif 2022 to study the response of nitrogen and phosphorus levels in combination with seed treatment and/or foliar spray of novel nano-fertilizer 'Nano-DAP' in soybean. Application of recommended dose of nitrogen and phosphorus (100% NP; 20:60 kg/ha) recorded significantly taller plants at all stages, at par with application of 75% NP + seed treatment (ST) with Nano-DAP + foliar spray (FS) of Nano–DAP, 75% NP application + FS of Nano–DAP, and application of 75% NP + ST with Nano-DAP + its FS @ 0.4%. These treatments were also statistically similar for dry matter accumulation. Application of 100% NP, 75% NP + ST and FS of Nano–DAP, and 75% NP + FS of Nano–DAP, showed similar performance for seed yield but recorded significantly higher seed yield than control (no N and P).
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