Correction to: Soil fertility effects of repeated application of sewage sludge in two 30-year-old field experiments (Nutrient Cycling in Agroecosystems, (2018), 112, 3, (369-385), 10.1007/s10705-018-9952-4)

Abstract

In the original publication of the article, Table 4 and Fig. 4 were incorrectly published. The correct version is given in this correction. The equations now given in Fig. 4 have implications for the text in Abstract. Hence, the following sentence ‘‘Soluble phosphorus (P) increased with sludge application rate, but represented only around 2% of the expected residual P according to P-balance calculations.’’ should be read as ‘‘Soluble phosphorus (P) increased with sludge application rate, but represented around 20% of the expected residual P according to P-balance calculations.’’ In Results section under ‘‘Phosphorus’’ heading, the following sentence ‘‘This comparison showed that P recovered in the P-AL extract corresponded to 2.6 and 2.2% of net P deposits at Igelo¨sa and Petersborg, respectively (Fig. 4).’’ should be read as ‘‘This comparison showed that P recovered in the P-AL extract corresponded to 26 and 22% of net P deposits at Igelo¨sa and Petersborg, respectively (Fig. 4).’’ In Discussion section under ‘‘Phosphorus’’ heading, the first sentence should have 20% instead of 2%. The second sentence ‘‘However, it is consistent with recent findings in Denmark, where the fertiliser value of SS treated with iron was found to be zero (Mu¨ller-Sto¨ver et al. 2018).’’ should be removed.