Effect
Decreased produce quality
GrowPlex treated Turkish Hazelnut grown in containers filled with pine-bark substrate had a 45 % smaller height growth, a 43.3% smaller stem diameter growth, had 39.7% less leaf dry mass and 32.4% less shoot dry mass, the roots were 68.7% shorter as compared to the untreated control. (All results were significant, but there was no significant relation between the fertilizer rate and biostimulant treatment)
Trial details
indoor, greenhouse, pine-bark substrate in 3.8L containers, 3 different slow-release fertilizer rates
USA
Crop
Turkish hazelnut, Corylus colurna L.
Trial application
Method
Root soak
Timing
At transplanting
Rate
30 mL in 4 L water, 30 min root soak
1997
Humate-Based Biostimulants Do Not Consistently Increase Growth of Container-Grown Turkish Hazelnut
J. Environ. Hort.
15
197-199
Crop group
