Perennial lupin establishment and yield when sown at five different rates at Glenmore Station, Lake Tekapo
Perennial lupin establishment and yield when sown at five different rates at Glenmore Station, Lake Tekapo
Moot, Derrick J. ; Pollock, Keith M.
Moot, Derrick J.
Pollock, Keith M.
Date
2014
Type
Conference Contribution - unpublished
Collections
Keywords
Fields of Research
ANZSRC::0703 Crop and Pasture Production , ANZSRC::070302 Agronomy
Abstract
The potential for perennial lupins to underpin grass/legume pastures was the subject of a research programme for merino farmers in areas where more conventional legumes struggle to thrive. A previously uncultivated pasture on an acidic soil, (pH 5.0; Al = 5 mg/kg), and dominated by browntop, sweet vernal and Kentucky bluegrass, was sprayed with herbicide, burnt and top-dressed with 3 t/ha lime on half the area in the autumn prior to direct drilling on 12 Dec 2012. A blue perennial lupin and a multi-coloured (Russell) lupin were sown at 2, 4, 8, 12, 16 and 32 kg/ha and cocksfoot at 2 kg/ha. Yield at four months after sowing had increased with the lupin sowing rate; up to 5.5 t dry matter (DM)/ha at 32 kg seed/ha. The annual yield for the following growth season was greater than 10 t DM/ ha with little response above 8 kg lupin seed/ha. There was a small but inconsistent response to the lime by the Russell lupin. Overall, lupin contributed 79% of annual yield and >90% of the spring yield at sowing rates >8 kg/ha. The sown cocksfoot and resident grasses showed a positive lime response at the lower lupin sowing rates. Key words: Lupinus perennis, L. polyphyllus
Permalink
Source DOI
Rights
© The authors
Creative Commons Rights
Attribution-NonCommercial-NoDerivatives