Madras Agricultural Journal
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Effect of Row spacing and Phosphorus Levels on Blackgram (Vigna mungo var radiata Hepper)

Abstract

Field experiments were conducted in kharif seasons of 1976 and 1979 at the College of Agriculture Farm. Rewa with T9 blackgram. Three row-spacings (30. 45 and 60 cm as main plot treatments) were tried with four levels of P (0.25, 50 and 75 kg/ha PO as sub-plot treatments) The yield and yield-attributing characters, including root-nodu lation, were favourably influenced by wider row-spacings and higher P levels. A row spacing of 30 cm and 75 kg P,0./ha were found optimum for sandy-loam soil for black gram. For the clay-loam soil. this crop needs 45 cm spacing and 50 kg P₂O/ha.

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