Preliminary Critical P-limit Values of 0.01 M CaCl2 Soil Test Procedure
| dc.contributor.author | Jászberényi, István | |
| dc.contributor.author | Loch, Jakab | |
| dc.date.accessioned | 2021-06-28T11:01:36Z | |
| dc.date.available | 2021-06-28T11:01:36Z | |
| dc.date.issued | 2001-12-04 | |
| dc.description.abstract | In the last decade, the 0.01 M CaCl 2 extraction procedure was tested as a multi-nutrient extractant. In 1995-97, international joint research activities were carried out within the COPERNICUS project. Detailed calibration of conventional and the 0.01 M CaCl 2 extraction procedures for pH, Mg and K were published. The amount of phosphorus extracted using a 0.01 M CaCl 2 solution is very low and reflects the intensity parameter of phosphorus bio-availability. As a readily desorbed P fraction of soils can reflect the soil P-supply and the CaCl 2 -P values are in close correlation with P-fertiliser rates and P balance. However, the effects of various soil characteristics on CaCl 2 -P values are different and their interpretation is difficult. Relatively poor correlations were found between amounts of P extracted by conventional and CaCl 2 soil test methods and, therefore, P limit values could not be calculated directly. To characterise the soil P supply at different sites, the CaCl 2 desorbed P and the adsorbed P in a modified Baker Soil Test were also applied. Soil test results of Hungarian long-term fertiliser experiments and recommended CaCl 2 -P limit values, calculated on yield effects and soil characteristics, are discussed. | en |
| dc.format | application/pdf | |
| dc.identifier.citation | Acta Agraria Debreceniensis, No. 1 (2001): Special Issue - Journal of Agricultural Sciences , 18-21 | |
| dc.identifier.doi | https://doi.org/10.34101/actaagrar/1/3602 | |
| dc.identifier.issn | 2416-1640 | |
| dc.identifier.issue | 1 | |
| dc.identifier.jatitle | Acta agrar. Debr. | |
| dc.identifier.jtitle | Acta Agraria Debreceniensis | |
| dc.identifier.uri | https://hdl.handle.net/2437/317064 | en |
| dc.language | en | |
| dc.relation | https://ojs.lib.unideb.hu/actaagrar/article/view/3602 | |
| dc.rights.access | Open Access | |
| dc.title | Preliminary Critical P-limit Values of 0.01 M CaCl2 Soil Test Procedure | en |
| dc.type | folyóiratcikk | hu |
| dc.type | article | en |
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