If you've got it severe enough it can be devastating and if not it can be managed... it just depends on where you are and what weather conditions you've had in the past and the amount of peas or lentils you've grown on those fields before.
More than 100 research studies show that soybeans typically suffer from a nitrogen gap when yields exceed 60 bu/ac. At that yield level, the combination of soil nitrogen and nodulation often doesn't provide what the plant requires to achieve higher yields. Could biologicals - including nitrogen-fixing endophytes and biostimulants - fill that "yield gap" and provide the nitrogen required at high yield levels? That's a question Syngenta Canada biological field specialist Greg Stewart has been working on for the past two years.