Rajma (Kidney bean, Phaseolus vulgaris) is known for its relatively poor ability to fix atmospheric nitrogen compared to other common Indian pulses like Gram (Cicer arietinum), Pea (Pisum sativum), and Moong (Vigna radiata). While it can form nodules, the nitrogen fixation is often ineffective or insufficient for its needs.
Pulse crop which does not fix atmospheric nitrogen is
Asked in UPPSC Upper Mains 2009 · Topic: Plant Nutrition (Symbiotic Nitrogen Fixation: Nodule formation and biochemistry)
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