Erratum to: Nutrient composition and content of various biological active compounds of three South African-based commercial seaweed biostimulants

Abstract

The original version of this article unfortunately contains many mistakes. The corrections are given in the following list: 1. Table 1 contains errors and should be replaced with the table found in this article. 2. “Results” section (under “Mineral nutrient and alginate content”, paragraph 1), the following paragraph is the correct version after correcting Table 1 and therefore should replace the current version: Results from the mineral composition and alginate content of raw E. maxima fronds and stipes as harvested in Gansbaai and Kommetjie in October 2013 showed a tendency of higher levels in the fronds compared to the stipes for N and Mg, well as lower levels in kelp obtained from the Gansbaai compared to the Kommetjie area (Table 1). 3. “Results” section (paragraph 3, second sentence), the below paragraph should replace the current version: N and P concentrations were significantly higher in Afrikelp® and Basfoliar®Kelp compared to Kelpak® and substantially higher than naturally occurring levels. 4. “Discussion” section (paragraph 3, first and second sentences), the text should be corrected as: When mineral content was considered, the significantly higher P and N concentrations reported in Afrikelp® and Basfoliar®Kelp compared to those in Kelpak®, may indicate an additional permissible enrichment of these products, all produced from E maxima, as natural levels in the freshly milled seaweed prior to processing were found to be much lower (Tables 1, 2). Similarly, significantly higher P levels in Afrikelp® and Basfoliar®Kelp products were reported in this study, also as pertaining to free phosphate levels (Tables 1, 2 and 3). 5. “Discussion” section (paragraph 4, fourth sentence) the below paragraph should replace the current version: The seaweed used for Afrikelp® production grows in the warmer waters of Gansbaai (ca. 15.8 °C) compared to the seaweed harvested for Kelpak® production from Kommetjie (ca. 13.3 °C) (Lotze 2012) and could not have been the cause of this difference in alginic acid levels in the final product, as the alginate concentration in raw seaweed was higher in Gansbaai. (Table presented.).