The Fate of Nitrogen in a Drip Irrigated Cotton Study with Six Levels of Water and Five Levels of Nitrogen

J.C. Henggeler, M.G. Hickey, W.L. Multer, R. Harston and D.L. Reddell


A drip irrigated cotton experiment was conducted for three years during which six water levels and five nitrogen levels were used. Yield was highly influenced by amount of water. Nitrogen-level had less influence on yields. After the three-year experiment was completed, soil samples were taken to seven foot on the experiment's thirty sub-treatments. The samples were analyzed for nitrate- and ammonium-Nitrogen. Overall, residual nitrate decreased as water application rates increased, but surprisingly, little relationship existed between amount of fertilizer applied and residual nitrogen.

Reprinted from Proceedings of the 1994 Beltwide Cotton Conferences pp. 1583 - 1585
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998