Effect
Increased produce quality
Increased nitrogen N use efficiency
Trainer treated Tomato, cv. Console F1, grown under optimal and sub-optimal N conditions had on average 2.7 % more leaves, 4.6 % higher SPAD value (more chlorophyll), 8.4 % more leave dry weight, 15 % more stem dry weight, 14.1 % more root dry weight and 4 % more total N in the plant (g/kg DW) as compared to the untreated control. The substrate drench method gave the best results (most differences significant). There wasn't a signficant interaction between the N level and biostimulant application.
Trial details
indoor, polyethylene greenhouse, quarziferous sand in 1.5 L pot, optimal and sub-optimal N concentrations in the nutrient solution
Italy
Crop
Tomato, Solanum lycopersicum L.
Trial application
Method
Foliar spray and substrate drench
Timing
9 days after transplanting, followed by 1 treatments 16 days after transplanting
Rate
2.5 mL/L (Foliar spray: uniformly, substrate drench 30 mL/plant)
2018
Protein hydrolysate stimulates growth in tomato coupled with N-dependent gene expression involved in N assimilation
Frontiers in Plant Science
9
1-11
Crop group
