Journal Article

Plant and microbial strategies to improve the phosphorus efficiency of agriculture

Harvey, Paul R., Delhaize, Emmanuel, Smith, Sally E., Ryan, Megan H., Culvenor, Richard A., Oberson, Astrid, Richardson, Alan E., Lambers, Hans, Simpson, Richard J., Ryan, Peter R., Lynch, Jonathan P., Veneklaas, Erik J., Smith, F. Andrew

2011

Overview

Background Agricultural production is often limited by low phosphorus (P) availability. In developing countries, which have limited access to P fertiliser, there is a need to develop plants that are more efficient at low soil P. In fertilised and intensive systems, P-efficient plants are required to minimise inefficient use of P-inputs and to reduce potential for loss of P to the environment. Scope Three strategies by which plants and microorganisms may improve P-use efficiency are outlined: (i) Root-foraging strategies that improve P acquisition by lowering the critical P requirement of plant growth and allowing agriculture to operate at lower levels of soil P; (ii) P-mining strategies to enhance the desorption, solubilisation or mineralisation of P from sparingly-available sources in soil using root exudates (organic anions, phosphatases), and (iii) improving internal P-utilisation efficiency through the use of plants that yield more per unit of P uptake.

• Publisher: Springer,Springer Netherlands,Springer Nature B.V
• Subject: Acid soils / Agricultural production / Agricultural soils / Agriculture / Agronomy. Soil science and plant productions / Animal, plant and microbial ecology / Anions / Biological and medical sciences / Biomedical and Life Sciences / desorption / Developing countries / Ecology / Economic plant physiology / Enzymes / Fundamental and applied biological sciences. Psychology / Fungi / Fungi in agriculture / General agronomy. Plant production / Genetically modified organisms / LDCs / Life Sciences / Microorganisms / Mineralization / Minerals / mycorrhizal fungi / Organic foods / Organic soils / Phosphorus / phosphorus fertilizers / Physiological aspects / Plant growth / Plant Physiology / Plant roots / Plant Sciences / Plants / Regular Article / root exudates / root growth / roots / soil / Soil microorganisms / Soil Science & Conservation / Soil-plant relationships. Soil fertility / Soil-plant relationships. Soil fertility. Fertilization. Amendments / solubilization / Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...) / Wheat soils