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Nutriplant

Type: Humic and fluvic acids, Company: Data not available

Effect

Increased produce quality

Nutriplant treated Onion, cv. Alfa Sao Francisco Cycle VIII, grown in a greenhouse with ambient CO2 concentrations had a 8.7 % taller shoot, the same amount of leafs, 16.7 % more shoot fresh weight, 15.9 % more shoot dry weight, 42.2 % more root fresh weight, 43.9 % more root dry weight, the same shoot water content, a 2.2 % lower root water content (ns), a 21 % bigger root/shoot ratio, leafs contained 107.9 % more starch, 46.9 % more total soluble solids, 26.9 % more total soluble proteins, 22.3 % more chlorophyll and 12.1 % more carotenoids compared to the untreated control. All results were significant, only the the change in root water content was not significant. 

Trial details
indoor, greenhouse, vermiculite:siliceous sand:sterilized light peat (2.5:2.5:1), ambient CO2 concentrations
Spain

Crop

Onion, Allium cepa L.

Trial application

Method
Soil drench
Timing
First treatement 1 day after transplantation of 21 days old seedlings, followed by 0 treatments
Rate
5 mL of 20 % solution per plant
Bettoni, M.M., Mogor, A.F., Pauletti, V., & Goicoechea, N.
2014
Growth and metabolism of onion seedlings as affected by the application of humic substances, mycorrhizal inoculation and elevated CO2
Elsevier, Scientia Horticulturae
180
227-235
Crop group