Effect of composted mulch application on soil and wine grape potassium status
| dc.contributor.author | Chan, K.Y. | |
| dc.contributor.author | Fahey, D.J. | |
| dc.date.accessioned | 2014-06-10T10:43:47Z | |
| dc.date.available | 2014-06-10T10:43:47Z | |
| dc.date.issued | 2011 | |
| dc.description.abstract | Oversupply of potassium (K) to grape vines can result in high grape berry K and pH, leading to difficulty in wine making and low wine quality. There is concern that application of mulch to grape vines may increase K supply and the associated risks. The effect of composted mulch from green wastes was investigated in a field trial involving six vineyards in New South Wales on soils commonly used for' viticulture production in Australia, over three seasons (2006-D8). Significant increases in extractable soil K were detected as a result of mulch application. Higher berry K and pH were also observed due to the mulch treatments, with the changes dependent on season and mulch rate. Increases in berry K were significantly related to the higher soil exchangeable K. The mean increase in berry K due to a mulch rate of 153 Meter cube/ha was 123 mg/kg. The mean increase in berry pH was 0.02 units observed ,in two seasons. Application of mulch can increase berry K and pH, but the changes are small compared with variations observed among vineyard sites and between seasons. | en_US |
| dc.identifier.citation | Soil Research, 2011 , 49, 455-461 | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/2672 | |
| dc.language.iso | en | en_US |
| dc.subject | exchangeable potassium | en_US |
| dc.subject | recycled organics | en_US |
| dc.subject | vineyard variability | en_US |
| dc.title | Effect of composted mulch application on soil and wine grape potassium status | en_US |
| dc.type | Article | en_US |