Nitrogen Contribution from Peanut to the Following Crop Peanut Notes No. 13 2018
There was a question about how much nitrogen peanuts contribute to the following crop. I think there is considerable variability associated with answers to this question. The citation below suggests that peanut residues do not contribute significant amounts of nitrogen to cotton planted the year following peanut. I have not done an exhaustive literature review but Madison Bell, a graduate student in our department, is looking into this for her MS program. Her primary focus is tobacco after peanut and soybean but she is also looking at corn and cotton response. Later this year we should have more information on this question but I suspect response will always be unpredictable. My answer to the question was 20 pounds per acre but I suspect one should not count on that every time. That number is an old estimate.
Journal of Plant Nutrition, 30: 1153–1165