Influence of site on response of ‘Grasslands Maku’<i>Lotus pedunculatus</i>establishment to seed pelleting and broadcast lime

Lowther, W. L.

doi:10.1080/00288233.1983.10427015

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Broadcast lime increased second year production at both Lake Onslow (unlimed plots 722 kg/ha v. limed plots 982 kg/ha, SED = 74.5) and Castle Dent (unlimed plots 278 kg/ha v. limed plots 356 kg/ha, SED = 9.2). This response to lime confirms previous results (Lowther 1976(Lowther , 1980(Lowther , 1983Scott & Mills 1981) which were attributed to an increase in plant establishment rather than plant growth because responses disappeared with time. Present results obtained at Lake Onslow (pH 5.1), however, show that lime increased first year individual plant weight and imply that increased second year plot yield was caused by plant growth rather than by increase in number of nodulated seedlings which was not affected by lime.…”

Section: Inoculation Pelleting Limesupporting

confidence: 90%

“…Problems with poor establishment of 'Grasslands Maku' lotus (Lotus pedunculatus Cav.) have been encountered on Otago tussock grassland where nodulation on acid soils (pH 4.6-4.9) can be as low as 33-41 % (Lowther 1976). Lack of nitrogen (N) retards seedling development, but N stress can be alleviated through increased nodulation and a corresponding rise in N z fixation.…”

Section: Introductionmentioning

confidence: 99%

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Effect of applied nitrogen, increased inoculation, broadcast lime, and seed pelleting on establishment ofLotus pedunculatuscv. ‘Grasslands Maku’ in tussock grasslands

Wedderburn

1986

New Zealand Journal of Experimental Agriculture

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Two series of trials examined methods of improving the poor establishment of 'Grasslands Maku' lotus in acid tussock grassland. At four sites (pH 4.4-5.1), increasing rates of fertiliser nitrogen (0-30 kg N/ha) at sowing, and increasing inoculation rate were investigated. At a further two sites (pH 4.6, 5.1), the effects of 5x and lOx the recommended inoculation rate, broadcast lime (at 500 kg/ha), and pelleting seed with rock phosphate/dolomite were evaluated. Nitrogen reduced plant weight and nodule number at three sites in the first year, and reduced second year plant production where vegetation cover was dense. The reduction in establishment was probably caused by nitrogen inhibiting nodulation, together with competition from resident vegetation. Addition of nitrogen at sowing to Maku lotus in the field should be avoided. Increasing the recommended inoculation rate increased establishment, by improving nodulation, winter survival, individual plant growth, and overall production. Broadcast lime improved nodulation at pH 4.6, but not at pH 5.1. However, total production was increased at both sites. The nodulation response to pelleting was similar to that for broadcast lime at low pH (4.6), but the lime effect was less than that obtained with increased inoculation and was lost by the second year.

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Section: Inoculation Pelleting Limesupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%