Some factors limiting the success of Lotus corniculatus in hill and high country

Abstract

Establishment and management problems have been identified as limitations to the productivity of birdsfoot trefoil (Lotus corniculatus L.) in hill and high country environments. Nodulation failures owing to ineffective inoculation techniques, low seedling vigour, and slow initiation of symbiotic nitrogen fixation are major problems in establishment. Competition from resident species and inappropriate grazing management can lead to poor persistence and stand performance. Recommendations to improve establishment, persistence and productivity include inoculating at 5 times the manufacturer's stipulated rate and drilling, witbin 24 hours of inoculation, at no more than 12 mm depth Weed control is essential. Stands should be sown pure or with non aggressive companion species, and rotationally grazed. Keywords Lotus corniculatus, birdsfoot trefoil, establishment, N fixation, inoculation, management