Is potassium application necessary for pigeonpea?
If soil tests show low levels of available potassium in the soils, then potassic fertilizers can be applied at 20 to 30 kg per ha as Muriate of Potash (MOP). Pigeonpea seedlings are prone to chloride injury if MOP is placed too near the plant rows. The potassium deficiency observed in a standing crop can be rectified by foliar spray of Muriate of Potash.