Phosphorus, Potassium and Sulfur on Malt Barley
Determine the effect of phosphorus, potassium and sulfur on the yield and quality parameters of malt barley across the agro-ecological regions of Alberta.
IPNI-2003-CAN-AB22
09 May 2003
Methodology
This research project will consist of four experiments evaluating cultivars, seeding rates, fertility and foliar fungicides. Only the fertility experiment is described here. All experiments will be set up as a randomized complete block or randomized split block design with four replicates.
For each experiment, barley parameters measured will include foliar diseases, lodging, yield, bushel weight, 1000 kwt, % plumpness, malt quality factors (23 in total) and economics. Environmental parameters measured will include soil nutrient levels and soil moisture levels, before and after harvest, and daily rainfall. All varieties will be seeded to achieve 250 seeds/m2 (except the seeding rate experiment) using treated, certified seed with seeding to be completed as early as possible in the spring.
Will examine the response of one 2 row (AC Metcalfe) and one 6 row (Excel) malt barley variety to phosphorus, potassium and sulphur. At one rate of nitrogen, four rates of phosphate, three of potash and three of sulfate will be evaluated for each of the two malt barley varieties, to determine effects on disease level, yield, protein and kernel plumpness.