Plant height control through nutrition management practices

Theo Blom, University of Guelph; Xiuming Hao, AAFC, Harrow

There is a commonly held belief that high nitrate ratios produce smaller plants and high ammonium ratios produce larger plants. Dr. Theo Blom with the University of Guelph has found this not to be the case with research into the effect of nutrient ratios on plant height. Results of this research have provided recommendations on the practicality of plant nutrient management in limiting bedding plant height.