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首页> 外文会议>ACIAR Proceedings no.115; Workshop on Tropical Legumes for Sustainable Farming Systems in Southern Africa and Australia; 20021007-09; Limpopo Province(ZA) >Identification and Development of Forage Species for Long-Term Pasture Leys for the Southern Speargrass Region of Queensland
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Identification and Development of Forage Species for Long-Term Pasture Leys for the Southern Speargrass Region of Queensland

机译：昆士兰州南部长矛草地区长期牧草的牧草种类的鉴定和开发

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摘要

Well-managed pasture leys using species that are adapted to the climate and soils are an option for redressing pasture and soil degradation in areas of the speargrass region of southern Queensland. To identify the most promising pasture plants and compare them with current cultivars, some 180 legumes and 50 grasses were tested in small swards at two sites on farmers' properties at Cinnabar near Kilkivan and Broad Creek near Durong. Since planting in February 2000, rainfall has been below average but most of the legumes and grasses established. Density of legumes has generally declined, but the grasses have improved to the extent that some are now covering 100% of the plots. Of the grasses, creeping bluegrasses (Bothriochloa insculpta cw. Hatch, Bisset and CPI 69517) are well adapted to both sites as are digit grasses (Digitaria eriantha cv. Premier and D. milanjiana cv. Strickland and accessions such as D. eriantha ATF 605). There are also Urochloa spp. that are equally as well adapted and leafier than U. mosambicensis cv. Nixon. The annual legumes, lablab and Centrosema pascuorum Q 10050 were the highest yielding in the first year at both sites and Macroptilium bracteatum cvv. Juanita and Cadarga have persisted at both sites, producing some forage in the third season. These could be effective short-term ley legumes in cropping programs. Legumes that are strongly perennial and could be used in longer-term leys and for grazing are Stylosanthes scabra cw. Seca and Siran and S. guianensis var. intermedia cv. Oxley. Desmanthus glandulosus CPI 90319A is also promising at both sites but a range of Desmanthus leptophyllus, including CPI 38820, CPI 63453, CPI 92806, CPI 92809, CPI 92818 and TQ 90, while promising at Cinnabar, were less successful at Broad Creek. Aeschynomene falcata ATF 2194 is a low-growing but promising long-term legume for grazing that has persisted and produced more forage than A. falcata cv. Bargoo at Broad Creek.
机译：昆士兰州南部的长矛草地区，使用适应气候和土壤的物种管理良好的牧草场是纠正牧草和土壤退化的一种选择。为了确定最有前途的牧场植物并将它们与当前的栽培品种进行比较，在基尔万（Kilkivan）附近的朱砂（Cinnabar）和杜荣（Durong）附近的布罗德克里克（Broad Creek）的两个土地上，在小面积上测试了约180种豆类和50种草。自2000年2月播种以来，降雨量一直低于平均水平，但大多数豆类和草类均已建立。豆科植物的密度总体上有所下降，但草的改良程度已达到某种程度，现在一些草覆盖了100％的地块。在草丛中，ing草（Bothriochloa insculpta cw。Hatch，Bisset和CPI 69517）和数字草（Digitaria eriantha cv。Premier和D. milanjiana cv。Strickland）以及诸如D. eriantha ATF 605之类的种都很好地适应了这两个地点。 ）。也有Urochloa spp。与U. mosambicensis cv一样，其适应性和叶性都一样。尼克松一年生豆科植物，白扁豆和pascuorum Q 10050在两个站点和Macroptiltil bracteatum cvv上都是第一年的最高产量。胡安妮塔（Juanita）和卡达尔加（Cadarga）在这两个地点都坚持不懈，在第三季生产了一些草料。这些可能是种植计划中短期有效的豆类作物。 Stylosanthes scabra cw是多年生的强烈豆科植物，可用于长期放牧和放牧。 Seca和Siran和gu.ensis变种中级简历奥克斯利。在两个站点上，Desmanthus glandulosus CPI 90319A也很有希望，但是一系列的Leptophyllus，包括CPI 38820，CPI 63453，CPI 92806，CPI 92809，CPI 92818和TQ 90，尽管在Cinnabar很有希望，但在Broad Creek却不太成功。 Aeschynomene falcata ATF 2194是一种生长缓慢但有前途的长期放牧豆科植物，比A. falcata cv持续​​存在并产生更多草料。阔溪的Bargoo。

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