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首页> 外文会议>General Meeting of The European Grassland Federation >Effect of soil type, lime and phosphorus fertiliser application on grass yield and quality
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Effect of soil type, lime and phosphorus fertiliser application on grass yield and quality

机译：土壤型，石灰和磷肥应用对草产量和质量的影响

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High soil fertility levels are essential to maximise grass growth over an extended grazing season. The implementation of sustainable nutrient management practices on grassland farms is critical for maintaining sustainability within grassland systems.The objective of this study was to identify the optimum management of lime and chemical and organic phosphorus (P) fertilisers for grass production across grassland soils representing the main mineral soil types in Ireland. A series of experiments were conducted across pot, microcosm and plot scales to investigate the effects of lime and fertiliser treatments on soil fertility and grass yield and quality. These studies showed a large P lock up potential of different mineral soils in Ireland. On high yielding grassland soils, a positive grass yield response to P fertiliser application across a range of background soil P fertility levels was found. The addition of lime significantly increased soil pH, soil test P and grass P recovery. Targeting slurry applications to low pH soils represented a greater return on P input compared to chemical P. Overall, these studies show that soil specific nutrient advice can be integrated on grassland farms to increase P efficiency and improve the economic and environmental sustainability of grassland farming systems.
机译：高土壤肥力水平对于最大化延长放牧季节的草地增长至关重要。在草原农场的可持续营养管理实践的实施对于维持草地系统的可持续性至关重要。本研究的目的是确定石灰和化学和有机磷（P）肥料的最佳管理，用于跨草地土壤的草生产爱尔兰矿物土壤类型。在锅中进行了一系列实验，微观的微观和绘制尺度，以研究石灰和肥料处理对土壤肥力和草收益率和质量的影响。这些研究表明，爱尔兰不同矿物土壤的大型P锁定潜力。在高产草原土壤中，发现了对一系列背景土壤p p生育水平的P肥施加阳性草产量反应。添加石灰显着增加土壤pH，土壤试验P和草P恢复。靶向浆液应用于低pH的土壤，与化学P.总体而言，对P输入的恢复更大，这些研究表明，土壤特定的营养建议可以集成在草地农场上，以提高P效率，提高草原农业系统的经济环境可持续性。

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