How do legumes improve phosphorus uptake of the following wheat?

豆类如何提高以下小麦的磷吸收？

• 批准号: DP1093605
• 负责人: Prof Petra Marschner
• 金额: $ 15.64万
• 依托单位: The University of Adelaide
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2010
• 资助国家: 澳大利亚
• 起止时间: 2010-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP1093605
• 关键词: How; do; legumes; improve; phosphorus

World rock phosphate reserves for manufacturing phosphorus (P) fertilisers will be depleted in 50-100 years. Thus it is critical to reduce the reliance of the Australian agriculture on P fertilisers. The long-term application of P fertilisers has resulted in accumulation of P in a soil P bank which is unavailable to crops such as wheat. Legumes may have access to the soil P bank and increase growth and P uptake by the following wheat, but the mechanisms behind this effect are unclear. In this multidisciplinary international collaboration, we will characterise the changes in soil chemistry and microbiology in the legume-wheat rotation. The knowledge generated could result in greater utilisation of the soil P bank and decreased P fertiliser use.

用于制造磷（P）肥料的世界磷酸盐岩储量将在50-100年内耗尽。因此，减少澳大利亚农业对磷肥的依赖至关重要。长期施用磷肥导致土壤磷库中磷的积累，而这是小麦等作物无法利用的。豆科植物可能有机会进入土壤磷库，并增加生长和磷吸收的小麦，但这种影响背后的机制尚不清楚。在这个多学科的国际合作中，我们将研究豆类-小麦轮作中土壤化学和微生物学的变化。所产生的知识可能会导致更大的利用土壤磷库和减少磷肥的使用。