%A Y S Chauhan %I International Crops Research Institute for the Semi-Arid Tropics %V 11 %L icrisat6166 %J International Pigeonpea Newsletter %P 14-15 %D 1990 %T A ready-reckoner to help pigeonpea researchers determine plant population %X A ready-reckoner to calculate plant population/ha using a range of row-to-row and plant-to-plant spacings is presented. A formula for determining plant population for a combination of row and plant spacings not given in the table is also presented.