Effect
No effect on nitrogen N use efficiency
No effect on produce quality
BioAtlantis treated Surfinia, cv. Surfinia White, grown in a peat-based substrate in reduced nitrogen conditions had 3 % longer branches, 2 % more branches, 31 % more flowers, 9 % more fresh weight, 10 % more dry weight, a 5 % better root development, a 8.9 % lower chlorophyll-index, a 6.6 % lower flavonolindex, a 11 % lower anthocyanin-index compared to the untreated control grown in the same nitrogen stress conditions.
Trial details
Indoor, greenhouse, peat-based susbstrate, reduced nitrogen (-20 %)
Belgium
Crop
Surfinia, Petunia x hydrida
Trial application
Method
Foliar spray
Timing
First two applications at the early stage of vegetation at 10 days interval, followed by 2 applications just before the emergence of flower buds at an interval of 10 days
Rate
2 L/ha
2019
Bio4safe trial report Surfinia 2019
Crop group
