The Effects of Potassium Chloride to Counteract the Negative Effects of Side-banded Urea on Plant Establishment
A series of experiments to determine if adding KCl to side-banded urea would increase the safety to the seedlings against the toxic effects of side banded urea, regardless of the separation between the seed and fertilizer. No significant effect was observed, although there was one site-year observed where addition of KCL with urea in the side-banded urea for flax was beneficial.
IPNI-1999-CAN-SK22
15 Mar 2001
Methodology
- Factorial Randomized Split-Split Plot Design with four replicates (Total number of plots 288).
Factor 1 Urea fertilizer (Granular): 0, 60 and 120 kg-N / ha
Factor 2 Separation (horizontal x vertical): 1"x 1.5" , 1" x 3.0"
Factor 3 Crops: Flax and Spring Wheat
Factor 4 Soil Type: sandy loam and clay loam of an Oxbow Association
Factor 5 Potash 0, 15, and 30 kg/ha of K2O (side-banded with urea)
Variables Measured:
-Plants per meter square (plants /m2)
-Grain Yield (kg/ha)
-Grain Protein: Wheat only
-Soil Testing ( texture, pH, conductivity, nutrients etc)
Two locations: clay loam and sandy loam soil types.