want to grow rajma kidney bean, when to sow in the plains and is the hill crop different
3 Answers
Rajma (kidney bean) is grown in two settings. In the northern plains it is a rabi crop sown around October to November, since it needs cool weather and is sensitive to frost and high heat. In the hills it is a kharif crop grown through the warm season, and hill rajma like the famous Chamba and Uttarakhand types fetch a premium for taste and bold seed. Rajma, unlike most pulses, nodulates poorly and often responds to a little nitrogen, so it is managed slightly differently from other beans. Sow on time to avoid frost at flowering in the plains. Confirm the recommended variety and exact window for your area with your KVK, as plains and hill recommendations differ.
In the plains rajma is a rabi crop, watch the frost dates at flowering. The hill rajma is a different season and gets a much better price for its taste and bold seed.
Remember rajma does not fix nitrogen well like other pulses, so it usually needs some nitrogen. I learned that after treating it like other beans and getting a pale weak crop.