Evaluation of Cotton Yield, Quality, and Plant Growth Response to Soil-applied Potassium

IPNI-2013-USA-TX56

Studies were initiated at two field sites with a previous history of K+ deficiencies, including Williamson county in the Blacklands region and Wharton county in the Upper Gulf Coast region. In mid April, cotton cv. Phytogen 499WRF was planted into a Lake Charles clay loam at the Wharton site and cv. DP 0935B2RF into a Burleson clay at the Williamson county site. Based on soil test results, 35 and 60 pounds K2O per acre were recommended for the Wharton and Williamson sites, respectively. Read more


Year of initiation:2013
Year of completion:2014
Map:

Interpretive Summary

2014

The frequency and severity of K deficiency symptoms in crops grown on the clay soils of the Central Blacklands and Gulf Coast regions of Texas have increased in recent years. While drought has contributed to the occurrence, the frequency of K deficiencies in multiple row crops, especially cotton, is a major concern to producers, scientists, and other agricultural professionals.

2013

The frequency and severity of K deficiency symptoms in crops grown on the clay soils of the Central Blacklands and Gulf Coast regions of Texas have increased in recent years. While drought has contributed to the occurrence, the frequency and widespread geographic nature of the K deficiencies in multiple row crops, especially cotton, is a major concern to producers, scientists and other ag professionals.


Updates & Reports

2016

Impact of Soil Applied Potassium on Cotton Yield and Profitability

2014

Great Plains Soil Fertility Conference Proceedings Paper

2013

2013 Annual Report

2013

Project Description


Publications

cover
Impact of Soil Applied Potassium on Cotton Yield and Profitability Mike Stewart and Gaylor D. Morgan
Better Crops With Plant Food
2016-3, page #19

Project Leader

Gaylon Morgan, Texas A&M University


Project Cooperators

Mark McFarland


IPNI Staff

Mike Stewart


Location

Americas \ Northern America \ USA \ Texas


Topics

4r place, 4r rate, plant analysis, soil fertility and productivity, yield

cotton

Potassium (K)