11924 Plant Recovery From Early N and K Stress

Thursday, January 6, 2011: 1:30 PM
International 5 & 6 (Atlanta Marriott Marquis)
Leo Espinoza , University of Arkansas Division of Agriculture Cooperative Extension Service
Mukhammadzakhrab Ismanov , University of Arkansas Division of Agriculture Cooperative Extension Service
Paul Ballantyne , University of Arkansas Division of Agriculture Cooperative Extension Service
The objective of this presentation is to report on a study to assess the ability of a cotton plant to recover from an early nitrogen and potassium stress. Nitrogen was split-applied, with 40 lb applied immediately after planting and 60lb applied at 175 heat units intervals, beginning at first bloom. A single 90 lb/acre potassium application was done at planting, first bloom, and at 150 heat unit intervals. Average yields, petiole concentration, and lint quality data will be presented.
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