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Effect of phosphorus and potassium on yield, nutrients uptake, protein and oil contents of groundnut (Arachis hypogaea)



Effect of phosphorus and potassium on yield, nutrients uptake, protein and oil contents of groundnut (Arachis hypogaea)



Indian Journal of Agricultural Sciences 60(8): 559-561



In 2-year field trials (1984-85) with groundnuts grown on a clay soil (Vertisol) containing 10 kg available P and 399 kg available K/kg soil, applying 0, 4.4, 8.8 or 13.2 kg P/ha gave av. pod yields of 0.99, 1.04, 1.22 and 1.30 t/ha, resp. Yields increased from 1.01 to 1.18 t/ha with 25 kg K/ha and were not further increased with 50 kg K/ha. Increasing P rates increased P and K uptake and seed protein and oil contents.

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