Project title: Relationship of organic to inorganic P ratios
to plant P phosphorus bioavailability, uptake, and mycorrhizal establishment.
Duration: 2002-2007
Funding: HATCH Funding
Contact:
Martha Mamo, Assistant Professor, 242 Keim Hall,
East Campus, University of Nebraska
Lincoln, NE 68583-0915, Phone: 402- 472 8493,
Fax: 402- 472 7904
Email: mailto:mmamo3@unl.edu, http://agronomy.unl.edu/fac/mamo.htm
Project
description:
The objective is to evaluate the bioavailability of organic P compounds for plant uptake at various organic/inorganic P ratios. The experiment is being conducted in the greenhouse using coarse and fine textured soils low in extractable P (< 7 ppm). Sorghum yield, P uptake, root surface area, root:shoot ratios, phosphatase activity, and mycorrhizal infection (via lipid biomaker) are being measured.
Key
results: In progress.
Publications: None _____________________________________________________________________