Chloride's Role in Maximizing Wheat Variety Performance
To understand the interactions of major wheat varieties with chloride fertilization, and evaluate effects of chloride fertilization on wheat plant pathology, plant maturity and thousand kernel weight. Also to increase awareness of dealers and growers of the affects of appropriate chloride fertilization on wheat yield and profitability.
IPNI-1995-CAN-MB8
01 Mar 1999
1998 Annual Interpretive Summary
Chlorides Role in Maximizing Wheat Variety Performance, 1998
Not all varieties of spring and winter are sensitive to Cl deficiency. Some respond to applied Cl while others do not. The problem is, it is not known which varieties are responsive. This study has been part of a large North American Cl trial investigating varietal response to Cl fertilization.
Fifteen varieties of spring wheat were sown with and without Cl at two locations on two different soil types in Manitoba for the past three years. Chloride fertilization increased grain yields on both soils, but response patterns were not the same from year to year or between locations. Several varieties responded on a clay loam soil, but not on a fine sandy loam, even though the latter had lower soil Cl levels. Chloride increased yields of one variety in five of six site-years and several others responded frequently. The inconsistencies observed in this study make general predictions of Cl response a challenge, however it has made more farmers aware of the potential for Cl fertilization. MB-08