It is important to keep a close watch on nodulation and nodule activity throughout the growing season. Formation of a strong set of nodules does not guarantee that sufficient nitrogen levels are being produced for the plant. Nodules need to be monitored for their activity, especially in very hot and dry conditions or consistently wet or water-logged conditions or areas of a field. To test for nodule activity, several peanut plants should be loosened from the soil using a trowel or pitchfork, and gently removed. Account for nodule numbers and size and keep notes regarding a decrease in number of nodules over the season.
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