Nitrogen Deficient Peanuts Peanut Notes No. 198 2025

(Updated: Aug. 2, 2025, 5:09 a.m.)

This past week I visited a field with pale green peanuts and some that were deeper green. The pale peanuts had some nodules. In some cases around 10. The greener peanuts had many more. The peanuts were relatively small. There would be a benefit to applying ammonium sulfate. The majority of peanuts were pale green. The table we have in 2025 Peanut Information for rates as the season progresses can be found below.

Two uprooted peanut plants placed side by side on a metal surface, showing differences in pod development and root structure for comparison.
Close-up of a peanut plant root system showing visible nodules swelling and root deformation.
Close-up of peanut roots displaying severe galling and swelling.
Table showing recommended ammonium sulfate application rates for peanuts based on days after planting when nitrogen deficiency is observed: 70 days or less: 500 lb/acre 71 to 100 days: 400 lb/acre 101 to 130 days: 300 lb/acre More than 130 days: 200 lb/acre.
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Written By
David Jordan
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