Agronomic Aspects of Coated Potassium Chloride Fertilizers

Research investigating if polymer coated KCl will enhance the nutrient use efficiency of K and Cl, and reduce the damaging effect of higher rates of seed placed fertilizer.

IPNI-1996-CAN-AB16

The objective of the seedrow KCl placement was to determine the rate of K application and the coating thickness on the germination and seedling growth of barley, wheat and canola. Read more


Year of initiation:1996
Year of completion:1998
Map:

Interpretive Summary

1997

Agronomic Aspects of Coated Potassium Chloride Fertilizers, 1997 University of Alberta researchers have been studying coating of K fertilizers with different polymers. High rates of seed-placed KCl can restrict seed germination and seedling growth of small grains and oilseeds, but coating the KCl with a polymer appears to alleviate its potential harmful effects, especially with canola. Polymer coated KCl was also found to increase K availability and uptake in barley.

1996

Agronomic Aspects of Coated Potassium Chloride Fertilizers, 1996 Farmers in direct-seeding systems want to apply all their fertilizer with the seed at planting, but are concerned about possible damaging effects from including too much KCl in the blend. Researchers at the University of Alberta are investigating if polymer coated KCl will enhance the nutrient use efficiency of K and Cl, and reduce the damaging effect of higher rates of seed-placed fertilizer.


Updates & Reports

1997

1997 Annual Report

2001

Objectives

2001

Investigators

2001

Project Description

1998

Short Communication


Project Leader

Marvin Nyborg, University of Alberta


Project Cooperators

Mingchu Zhang
Elston Solberg


IPNI Staff

Adrian Johnston


Location

Americas \ Northern America \ CAN \ Alberta


Topics

4r place, 4r rate, 4r source, nutrient management

barley, rapeseed (canola)

Chloride (Cl), Potassium (K)