Record ID No. |
4105 |
Author(s) |
Bryan G. Hopkins, Donald A. Horneck, Ann E. MacGuidwin , 2014 |
Affiliation |
Plant and Wildlife Sciences Department, Brigham Young University, Provo, UT, 84602, USA, email: Hopkins@byu.edu |
Title |
Improving Phosphorus Use Efficiency Through Potato Rhizosphere Modification and Extension |
Source. Vol.(no):Page |
American Journal of Potato Research, 91(2): 161-174p. |
Categories |
Mycorrhiza General |
Subjects |
Soil plant relations |
Sub-subjects |
Fungal evaluation |
Host |
Solanum tuberosum |
Organism |
Mycorrhiza |
Country |
USA, N. America |
Abstracts |
Phosphorus (P) fertilization is essential for societal sustainability. However, plant P uptake is inefficient due to poor soil P solubility, especially for the potato (Solanum tuberosum L.) plant due to its relatively poor rooting efficiency. Phosphorus use efficiency (PUE) can be increased with rhizosphere modifications such as: (1) raising the bulk pH of acid soils, (2) placement of fertilizer in the rhizosphere by broadcast incorporation and/or, especially, as a concentrated band, (3) use of slow and controlled release P fertilizers, (4) use of organic acids to increase P solubility in alkaline soils, (5) use of an acid polymer, and (6) extending the effective rhizosphere zone via any practice that fosters root growth, such as through promotion of mycorrhizal development. Alone or in combination, these techniques offer an opportunity to increase PUE. |