A field experiment was conducted at Tamil Nadu Agricultural University, Coimbatore to study the cationic content of shell in groundnut (TMV 7) with four levels of calcium viz., 0. 40 80 and 160 kg/ho and five levels of sodium víz-, 0, 5, 10, 20 and 40 kg/ha. Sodium reduced the absorption of calcium by the developing peg- High amount of calcium alters potassium status which in turn in combination with varying sodium levels produce both synergistic and antagonistic results. The 'The Watchman Antagonsim (TWA) mechanism between sodium and potassium is discussed and a balanced ionic environment in the fruiting medium is stressed for increased pod yield in groundnut.
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Madras
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Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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Madras Agricultural Journal (MAJ)
Madras
Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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