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CoRoN(R) as a Foliar Nitrogen Source for Cotton

J. M. Thomas, III, R. B. Mack, G. Schmunk and W. Stringfellow


 
ABSTRACT

Extensive research conducted over the years has established the fact that cotton bolls require large amounts of nitrogen during peak fruiting periods. The use of foliar applied nitrogen has shown to be of value in supplying this need. However, the use of products such as urea can cause spikes in growth of the plants as well as burning at higher rates. The use of Controlled Released Nitrogen (CRN), which does not show the potential to burn, should be of added value in the development of a high yield cotton plant. Fieldwork during 1998 suggested the use of CoRoN applied by air to the foliage could extend the level of "N" in the petioles for 3 to 4 weeks while urea did not show an effect after the first week. This lead to research studies during 1999 across the cottonbelt to evaluate the effect of CoRoN vs. urea applied to cotton during bloom. Although the season was very dry during the last part, yields from Alabama and Georgia indicated an advantage in using CoRoN vs. urea. Leaf and petiole samples are being analyzed. This work is to continue in the 2000 season.



Reprinted from Proceedings of the 2000 Beltwide Cotton Conferences pp. 1397 - 1398
©National Cotton Council, Memphis TN

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Document last modified Saturday, Jun 17 2000