This makes them one of the most attractive plants for crop rotation, where their green plants are often plowed under and only used as a rich fertilizer to fill the soil of much-needed nitrogen.
There are actually a number of legume species that are grown exclusively for this particular purpose, to provide its high nitrogen content back to earth. These species include Cyamopsis, Leucaea, Sesbania, and Fallow, often called Green Manure species.
There are a variety of agricultural classes of legumes in production these days. They include those grown for industrial application (like timber), pharmaceutical industry including Fallow (Green Manure), flowers, fodder and grain.
Pulses are grown for their seeds and are known as grain legumes. Many pulses are grown to produce oil for industrial and home cooking. This includes a variety of beans and lupins, lentils, peas and peanuts.
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