Effect of phosphorus form on short-term solubility and availability in soils
| dc.contributor.author | Goh, T.B. | |
| dc.contributor.author | Karamanos, R.E. | |
| dc.contributor.author | Lee, J. | |
| dc.date.accessioned | 2018-07-24T18:12:13Z | |
| dc.date.available | 2018-07-24T18:12:13Z | |
| dc.date.issued | 2012-03-13 | |
| dc.description.abstract | A laboratory experiment was set up to compare solubility and “availability” of four phosphate fertilizer sources over a period of 32 d after application to soils with varying pH levels. Three soils, one acidic and two alkaline, one of which was non-calcareous and one calcareous, of similar texture and organic matter, were selected. A large number of samples treated with four phosphate products, namely, two ammonium orthophosphate (9-18-9 and 6-24-0), a polyphosphate (10-34-0), and an ammonium mono phosphate (11-52-0) at a rate of at 100 mg P kg-1 soil and an unfertilized control were incubated for a period of 32 d. Destructive sampling at 0, 1, 2, 4, 8, 16 and 32 d was used to assess water soluble and bicarbonate-extractable phosphorus (P). All treatments were replicated four times. Wide differences in soluble and bicarbonate extractable P levels from all four products in all three soils at the onset of incubation became insignificant after 2 to 4 d of incubation suggesting that when any of these products applied at seeding time would offer any advantage over the rest. | en_US |
| dc.description.version | Non-Peer Reviewed | |
| dc.identifier.uri | http://hdl.handle.net/10388/9113 | |
| dc.language.iso | en | en_US |
| dc.relation.ispartof | Soils and Crops Workshop | |
| dc.rights | Attribution-NonCommercial-NoDerivs 2.5 Canada | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.5/ca/ | * |
| dc.subject | bicarbonate | en_US |
| dc.subject | water soluble | en_US |
| dc.subject | emergence | en_US |
| dc.subject | availability | en_US |
| dc.title | Effect of phosphorus form on short-term solubility and availability in soils | en_US |
| dc.type | Presentation | en_US |