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Gagnon, B., Deners, I., Ziadi, N., Chantigny, M.H., Parent, L.-E., Forge, T.A., Larney, F.J. and Buckley, K.E. (2012) Forms of Phosphorus in Composts and in Compost-Amended Soils Following Incubation. Canadian Journal of Soil Science, 92, 711-721.
https://doi.org/10.4141/cjss2012-032

has been cited by the following article:

• TITLE: Fertilisation with Compost: Effects on Soil Phosphorus Sorption and on Phosphorus Availability in Acid Soils

  AUTHORS: Carmo Horta

  KEYWORDS: Ammonium Lactate Method, Olsen Method, Sustainability of P Fertilization, Standard Phosphate Requirement

  JOURNAL NAME: Open Journal of Soil Science, Vol.9 No.12, December 31, 2019

  ABSTRACT: Phosphate mineral fertilisers are manufactured from non-renewable resources. Soil fertilisation with composts is considered a good source of reuse nutrients such as phosphorus (P). The aim of this work was to evaluate the effect of compost fertilisation on soil P sorption and consequently on P availability. It was done an incubation experiment followed by a sorption experiment in a low-P acid soil fertilised with compost (CP) or single superphosphate (SSP). The P application rates were: 0, 6.5, 13, 26 and 52 (kg•P•ha−1). In CP treatments, the rates 26 and 52 kg•P•ha−1 were achieved by adding SSP to CP since it was not allowed to incorporate into soil more than 170 kg•N•ha−1from organic amendments. Although SSP has a higher proportion of easily available P than CP (86% vs 50%), the results showed that after 140 days of soil incubation, the available P was higher in CP treatments compared with SSP at the same rate of P application. The sorption experiment showed that after incubation of the fertilised soils, the P sorption maximum had lower values in treatments with CP in combination with SSP compared with only SSP fertilisation and the bonding energy had a deeper decrease in the same treatments. Also, the Standard Phosphate Requirement decreased in the CP in combination with SSP treatments. The reduction of soil P sorption capacity after compost addition to soil highlights the need of reducing P fertilisation rates to achieve similar levels of available P compared with only SSP fertilisation.