Publication
Assessment of net nitrogen mineralisation from repeated applications of cattle-slurry and mineral fertiliser in a Mediterranean forage system
| dc.contributor.author | Pereira, J. | |
| dc.contributor.author | Coutinho, J. | |
| dc.contributor.author | Trindade, H. | |
| dc.date.accessioned | 2015-11-10T16:20:22Z | |
| dc.date.available | 2015-11-10T16:20:22Z | |
| dc.date.issued | 2016 | |
| dc.description.abstract | The aim of our study was to evaluate the impact of repeated applications of cattle-slurry and mineral fertiliser on net N mineralisation rates in a Mediterranean forage system, cropped with maize silage (spring-summer) followed by Italian ryegrass (autumn-winter) for silage. The field study was performed between May-1997 and May-2000 in a commercial dairy-cattle farm located in Northwest Portugal. Five treatments were employed: Control with no N fertiliser (T0); one application of cattle-slurry at maize sowing with 187 (T1) or 340 (T2) kg total N ha-1 year-1; two applications, 258 kg total N ha-1 at maize and 150 kg total N ha-1 at ryegrass sowing plus application of 190 kg total N ha-1 to maize and 50 kg total N ha-1 to ryegrass as mineral fertiliser, totalizing 648 kg total N ha-1 year-1 (T3), and; application of 240 kg total N ha-1 year-1 as mineral fertiliser to both crops like in T3 (T4). Net N mineralisation was measured in soil layer 0-30 cm in each treatment. Significant amounts of N were released (160-290 kg N ha-1 year-1) by mineralisation due cattle-slurry application to soil, with apparent net N mineralisation varying between 45 and 95% of the total N applied. The application of mineral fertiliser led to N immobilisation (-23%) of the total N applied. Data obtained in this study may be used in the management of the N fertilisation to improve manure-N efficiency. | pt_PT |
| dc.identifier.citation | Pereira J., Coutinho J., Trindade H., 2016. Assessment of net nitrogen mineralisation from repeated applications of cattle-slurry and mineral fertiliser in a Mediterranean forage system. Journal of Global Agriculture and Ecology 4, 1-6. | pt_PT |
| dc.identifier.issn | 2454-4205 | |
| dc.identifier.uri | http://hdl.handle.net/10400.19/2947 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | International Knowledge Press | pt_PT |
| dc.subject | mineral fertiliser | pt_PT |
| dc.subject | nitrogen mineralisation | pt_PT |
| dc.subject | Cattle-slurry | pt_PT |
| dc.subject | grass silage | pt_PT |
| dc.subject | maize silage; manure-N efficiency | pt_PT |
| dc.title | Assessment of net nitrogen mineralisation from repeated applications of cattle-slurry and mineral fertiliser in a Mediterranean forage system | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 6 | pt_PT |
| oaire.citation.startPage | 1 | pt_PT |
| oaire.citation.title | Journal of Global Agriculture and Ecology | pt_PT |
| oaire.citation.volume | 4 | pt_PT |
| rcaap.rights | restrictedAccess | pt_PT |
| rcaap.type | article | pt_PT |