Assessing Physiological and Agronomic Responses of Cotton to Nitrogen Fertility in Southern Georgia

Nitrogen management decisions are largely driven by yield goals. As new cotton varieties are continually being released with greater yield potential than previous cultivars, a reassessment of cotton’s response to nitrogen fertility is essential. The current study characterized crop growth, net photosynthesis, chlorophyll a fluorescence, chlorophyll content, tissue mineral nutrient status, and yield for cotton grown under six different N fertility rates.