G82-587 Understanding Potassium for Crop Production in Nebraska

Authors

George W. Rehm, University of Nebraska - Lincoln

Date of this Version

1982

Document Type

Article

Comments

© 1982, The Board of Regents of the University of Nebraska on behalf of the University of Nebraska–Lincoln Extension. All rights reserved.

Abstract

This NebGuide discusses the availability of and the need for potassium in Nebraska soils

Potassium (K) is an essential nutrient absorbed from soils by crops in relatively large amounts. Therefore, it is classified as a major nutrient. Although large amounts are absorbed, potassium is not necessarily needed in a fertilizer program. Numerous studies conducted with all major crops have definitely shown that adding potassium to a fertilizer program does not lead to yield increases on the large majority of soils in Nebraska.