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There is a commonly held belief that high nitrate ratios produce smaller plants and high ammonium ratios produce larger plants. Research into the effect of nutrient ratios on plant height has shown this is not the case. Results of this research have provided recommendations on the practicality of plant nutrient management in limiting bedding plant height.
Researchers have found that significant energy reductions of up to 20% can be achieved by a combination of reduced night time temperature, morning CO2 injections and ventilation control. The specific combination of these climatic adjustments enables average temperatures to be maintained at the optimal level and produces more vigorous plants that are ready for holiday delivery dates
Conserving energy is a top priority for flower greenhouse operators. With this objective in mind, Dr. Xiuming Hao with Agriculture and Agri-Food Canada developed and assessed greenhouse heating and climate control strategies that would conserve energy without sacrificing timely production and maximum plant quality.
Communication Materials on the Latest Research