Effect
Increased produce quality
No effect on produce quality
Increased nitrogen N use efficiency
Trainer treated baby spinach, cv. Platypus RZ F1, subject to varying fertilisation rates (100%, 50% or 0% optimum), showed significantly increased marketable yield, increased SPAD index, increased nitrogen use efficiency (+17.9%), increased nitrogen uptake efficiency (+50%), no difference in chlorophyll a content (+1.8%), no difference in chlorophyll b content (+0.6%), no difference in total chlorophyll content (+1.8%), increased nitrate content (+763.3%), increased lipophilic antioxidant activity (+11.6%), no difference in hydrophilic antioxidant activity (+1.5%), no difference in total phenols content (+0.4%) and no difference in ascorbic acid content (-2.6%), compared to untreated control plants.
Trial details
Polytunnel, grown in pots (sandy soil), two consecutive growing seasons, varied nitrogen fertilisation rates (100% - 4.5 g/m², 50% - 2.25 g/m² or 0% optimum)
Italy
Crop
Strawberry, Fragaria x ananassa
Trial application
Method
Foliar spray
Timing
First application at 21 days after sowing, followed by 3 treatments with a 6-days interval (27, 33 and 39 days after sowing)
Rate
4mL/L at 1000L/ha
2020
Nitrogen Use and Uptake Efficiency and Crop Performance of Baby Spinach (Spinacia oleracea L.) and Lamb’s Lettuce (Valerianella locusta L.) Grown under Variable Sub-Optimal N Regimes Combined with Plant-Based Biostimulant Application
Agronomy
10(2)
278
Crop group
