Effect
No effect on produce quality
Increased nitrogen N use efficiency
Good for Greens treated Grapevine, cv. , grown in an orchard had significant greener leaves at BBCH 73 and BBCH 77 (+18.3%; +10.3%), grapes had no difference in acidity (+0.6%), no difference in refractometric degree (-0.9%), no difference in N-NH4 (-8.9%), amino N (-0.7%), no difference in available nitrogen (-6.7%), no difference in average weight of one grape (-2.9%), and no difference in average weight per vine (+9.6%), compared to the untreated control.
Trial details
Outdoor, unprotected, soil grown (clay and limestone) in orchard (since 1962)
France
Crop
Grape, Vitis vinifera
Trial application
Method
Foliar spray
Timing
First application at BBCH 15, followed by 3 applications at BBCH 63, BBCH 71 and BBCH 81
Rate
253 mL product in 3560 mL water
Crop group
