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Kelpak

Type: Seaweed extract, Company: Kelp Products

Effect

Increased produce quality
No effect on produce quality

Kelpak treated Soybean, cv. Atlanta,  showed significantly increased plant height (+33.2%), no difference in number of internodes in the main shoot (+5.3%), no difference in location height of the first pod (+11.3%, only significant effect with double spray of 0.7%), increased number of pods per plant (+38.3%), increased number of seeds (+35.4%), increased seed yield (+27%), decreased 1000 seed weight (-6.2%), no difference in total protein (+1.1%), decreased total fat (-9.8%, no significant effect with double spray 1%), no difference in total phenols (+47.2%, significant effect with double spray 1%), no difference in total flavonoids (+67.7%, significant effect with double spray of both doses), no difference in anthocyanins and increased reducing power (+111.6%, no significant effect with double spray of 0.7%), when averaged across different application timings and concentrations, compared to untreated control plants.

Trial details
Outdoor, unprotected, soil grown (Gleyic Phaeozems) over three consecutive years, common agricultural practices
Poland

Crop

Soybean, Glycine max L.

Trial application

Method
Foliar spray
Timing
First application at BBCH 13-15, followed by 0 or 1 application at BBCH 61
Rate
0.7% or 1.0%
Kocira, S., Szparaga, A., Kuboń, M., Czerwińska, E. and Piskier, T.
2019
Morphological and Biochemical Responses of Glycine max (L.) Merr. to the Use of Seaweed Extract.
Agronomy
9 (2)
93
Crop group