NFREC Perennial Peanut Update (12/12/15)

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Presentation transcript:

NFREC Perennial Peanut Update (12/12/15) Ann Blount (forage breeding) Jose Dubeux (forage management) Cheryl Mackowiak (soils)

State Support FDACS and Florida Cattlemen: Silver Spurs Ranch (outside Kissimee, FL) area for hosting UF-IFAS researchers and extension. forage system testing includes perennial peanut Phosphorus availability in biosolids and its effect on soil P retention.

Soil P Storage Capacity (SPSC) Nair and Harris (2014)

SPSC of different soil amendments Rew et al. (2007)

Phosphorus treatments: Control (no addition) DAP

Class AA biosolids (source 1)

Class B biosolids (Tallahassee)

Biochar (Class B biosolids)

Struvite (NH4MgPO4·6H2O)

State Support FDOT: Jennifer Shirley graduation (MS) in 2016 Perennial peanut (Ecoturf and experimental line) Bahiagrass (Argentine and experimental dwarf line) Grown without N inputs alone and PP X Grass mixtures Poster presented at ASA-CSSA-SSSA, 2015 Assessing Biological N2 Fixation in a Perennial Warm-season Grass/Legume System

Balm: Research plots

Yield and Nitrogen (GCREC)

Yield and Nitrogen (NFREC)

What it means for pastures…

Balm: PP x bahiagrass (mixture)

Quincy: PP x bahiagrass (mixture), 2013

Field plots and greenhouse

How much nitrogen being fixed by the plant?

Support FDACS: Forage hay field monocultures vs legume/grass mixtures bahia, bermuda, perennial peanut, alfalfa Nitrogen budgets (nutrient balance) of monocultures, including perennial peanut PPPA and NNF: Funds to study below-ground processes (rhizomes, rooting, nutrient water issues) NNF grant to fund PhD students in Agroecology (further studies in PP pastures—water scarcity)

Thank-you, PPPA!