The objective of this study was to examine the effects of urine and dung additions on the phosphorus (P) chemistry of pasture land and to compare the sensitivity of two soil extraction methods in assessing the P-loading risk. In a field experiment, urine and dung were added to soil in amounts corresponding to single excrement portions and the soil samples, taken at certain intervals, were analysed for pHH2O, acid ammonium acetate extractable P (PAc) and water extractable total P (TPw), and molybdate reactive P (MRPw). Urine additions immediately increased soil pH and MRPw, but no such response was observed in PAc extraction due to the low pH (4.65) of the extractant enhancing the resorption of P. The PAc responded to the dunginduced increase in soil total P similarly as did Pw, which suggests that both tests can serve to detect areas of high P concentration. However, water extraction was a more sensitive method for estimating short-term changes in P solubility. In pasture soils, the risk of P loss increases as a result of the interaction of urination and high P concentration in the topsoil resulting from continuous dung excretion.;
SOINNE, H., SAARIJÄRVI, K., & KARPPINEN, M. (2008). Sensitivity of soil phosphorus tests in predicting the potential risk of phosphorus loss from pasture soil. Agricultural and Food Science, 17(3), 265-277. https://doi.org/10.2137/145960608786118785
Authors who publish with Agricultural and Food Science agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Any part of the Agricultural and Food Science may be referred to assuming the Author, The Article, Publication with Volume and Number plus URL for the references have been provided.
Agricultural and Food Science (AFSci) publishes original research reports on agriculture and food research in relation to primary production. Acceptable papers must be of international interest and have a northern dimension. We especially welcome papers related to agriculture in Boreal and Baltic Sea Region.
The articles of the journal and its predecessors Journal of the Scientific Agricultural Society of Finland, Journal of Agricultural Science in Finland, Agricultural Science in Finland, Agricultural and Food Science in Finland, The Journal of the Scientific Agricultural Society of Finland i.e. Maataloustieteellinen aikakauskirja have been scanned to pdf-format from 1945 to 1997 and are now available for readers of the journal free of charge. The digitalization of the predecessors of Agricultural and Food Science was funded by Kopiosto and The Finnish Science Publishers Association. If any of the authors of these scanned articles do not want their article to be included in the archive, please contact the editor of the journal (firstname.lastname@example.org).