Subscribe and stay up-to-date with the latest news and great offers from DEKALB, Asgrow and Deltapine.
Don't miss out on the latest agronomic news.
Local agronomic alerts.Delivered straight to your inbox.
Growers usually apply nitrogen and potassium fertilizers pre-bloom. But since squaring, bloom, and boll development are the times when cotton makes the largest fertility demands, a second fertilizer application is recommended where split applications are possible or a petiole test indicates additional requirements. Growers are urged to exercise caution, avoiding rates in excess of 100 pounds of nitrogen which may lead to excessive growth. The petiole nitrate-nitrogen level prior to flowering can be influenced as much by temperature as by soil nitrogen supply and is not considered a reliable measure until after flowering.
This article is from the Cotton Management Guide, a publication with year-round advice on managing high-yielding cotton. Download the Deltapine Cotton Management Guide now or sign up for new content to be delivered to your email each month.
Click here to learn more about determining normal cotton growth.