ISSN: 0041-3216 (Online), 0041-3216 (Print)
Volume 70 Number 4
Effect of potassium on the growth and nodulation of chick pea (Cicer arietinum L) under different levels of salinity
Potassium at 20 ppm improved the growth and nodulation of chick pea (Cicer arietinum L.) at two levels of salinity (4.34 and 8.30 dS m-1). However, plant performance was not equal to that of the nonsaline control even at 40 ppm K Potassium had no beneficial effect on nitrogenase activity and % N in roots and shoots. The Na:K ratio in the plant was reduced by an application of 20 ppm K at 8.30 dS m-1. The uptake of P was not significantly improved by an external application of K.
Keywords: Chick pea; Na:K ratio; Nitrogen; Nitrogenase; Nodulation; PhosphorusÂ· Potassium; Salinity