Effect
Increased produce quality
Kelpak treated Carrots, cv. Karotan, grown in normal field conditions had on average a 8.1 % higher total yield, a 6.8 % higher commercial yield, a 10.5 % higher total dry matter yield, 30.5 % more deformed roots, 0.4 less roots < 1.9 cm, 29.4 % more roots between 1.9-3.8 cm, 14.8 % more roots between 3.8-5 cm and 1.8 % less roots > 5 cm, had 8.3 % less fresh matter of leaves and 12.2 % less dry matter of leaves compared to the untreated control plants. Single application of 2 or 3 mL/L gave the best results.
Trial details
outdoor, unprotected, soil grown, normal conditions
Poland
Crop
Carrot, Daucus carota L.
Trial application
Method
Foliar spray
Timing
First application at the fourth leaf stage followed by 0 treatments or followed by 1 treatment with a 2/4-weeks interval or followed by 2 treatments with a 2-weeks interval
Rate
First application: 2 or 3 L/ha; Second and third application: 2 L/ha
2017
Carrot root size distribution in response to biostimulant application
Acta Agriculturae Scandinavica, Section B - Soil & Plant Science
67
334-339
Crop group