Impact of Nitrogen, Phosphorus and Potassium Chloride Fertilizer Management on the Growth and Yield of Oats
Develop fertilizer management strategies which optimize fertilizer use efficiency for oats in the eastern sub-humid Prairie.
IPNI-2000-CAN-MB12
23 May 2001
2000
Application of N and P improved oat growth at both field sites in 2000, as measured by increased panicle density, biomass yield and/or grain yield. No significant interactions among the nutrients applied were evident for biomass or grain yield; however, a few significant interactions, particularly between N and P, were evident for factors such as lodging and test weight.
Nitrogen application increased crop growth throughout the growing season resulting in increased biomass yield both at the tillering and heading stages, and in increased grain yield. However, reductions in grain quality parameters were frequently associated with N application.
Phosphorus fertilization enhanced early-season crop growth at both experimental sites; however, despite this marked early-season response, P application had no effect on grain yield and a very limited effect on grain quality.
Application of KCl appeared to have little or no effect on in-season crop growth; however, KCl application tended to increase grain yield at the clay loam site, as well as increase kernel weight and the percent plump kernels in the grain sample.