Effect
Increased produce quality
Trainer treated baby Lettuce, cv. Zarina, grown under different N rates had on average a significant higher yield (exception for 20 N), a significant higher LAI, a 0.7 % lower specific leaf weight, leaves had a 16.4 % significant higher succulence and contained 4.1 % more nitrates, 12.8 % significant more chlorophyll and 11.6 % more carotenoids compared to the untreated control. There wasn't an interaction effect between the biostimulant and the N rate for all the leaf parameters.
Trial details
outdoor, unheated plastic tunnel, soil grown, 4 different N rates (0, 10, 20 or 30 kg/ha)
Italy
Crop
Lettuce, Lactuca sativa L.
Trial application
Method
Foliar spray
Timing
First application 3 weeks after sowing, followed by 4 treatments with a 7-days interval
Rate
3 mL/L
2019
Effect of Vegetal- and Seaweed Extract-BasedBiostimulants on Agronomical and Leaf QualityTraits of Plastic Tunnel-Grown Baby Lettuce underFour Regimes of Nitrogen Fertilization
Agronomy
9
1-15
Crop group
