Wesström, Ingrid
- Institutionen för mark och miljö, Sveriges lantbruksuniversitet
Sammanfattning
Climate change is altering the conditions for agriculture, resulting in more frequent shortfalls in forage production. In two field experiments carried out in 2021 within established first-year grass-legume leys on the Swedish islands of Öland and Gotland, this study compared four different irrigation treatments in randomised blocks: an unirrigated control, entire-season irrigation (SI), irrigation up to first cut (D1) and irrigation up to second cut (D2). Field measurements showed clear increases in dry matter (DM) yield with irrigation during periods of rainfall deficit. Stored soil water was sufficient to give similar yield levels in all treatments at cut 1. A clear water deficit was seen in the unirrigated control and also the short irrigation treatment D1, with insufficient water to support a second cut. Similar responses to irrigation were observed at the third cut. By cuts 2 and 3, all irrigated treatments had significantly higher yield than the unirrigated control (P
Nyckelord
deficit irrigation; first-year ley; dry matter yield; botanical composition
Publicerad i
Grassland Science in Europe
2022, volym: 27, sidor: 500-502
Utgivare: European Grassland Federation
Konferens
29th EGF general meeting: Grassland at the heart of circular and sustainable food systems, 26 to 30 June 2022, University of Caen, France
SLU författare
Nilsdotter-Linde, Nilla
- Institutionen för växtproduktionsekologi, Sveriges lantbruksuniversitet
- Institutionen för växtproduktionsekologi, Sveriges lantbruksuniversitet
Joel, Abraham
- Institutionen för mark och miljö, Sveriges lantbruksuniversitet
- Institutionen för mark och miljö, Sveriges lantbruksuniversitet
UKÄ forskningsämne
Jordbruksvetenskap
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/119141