Current Research Projects

 The following are current research projects at Russell Ranch (as of December 2013):

 

JPL aerial cube

  • Evaluation of Winter Cover Crops to Reduce Nitrate Leaching and Increase Yields in Drip-irrigated Tomato Rotations, PI: Wendy Silk, Martin Burger 

  • Testing the memory effect of soils on N2O emissions in rain-fed wheat systems, PI: Chris Van Kessell, Researcher: Steve Fonte

  • Calibrating in-field diagnostic tools to improve the precision of nitrogen management across diverse soil fertility backgrounds, PI: Mark Lundy

  • Phosphorus Cycling in Soils: Assessing the Impact of Agricultural Practices on Phosphorous Availability and Loss Using Oxygen Isotopes of Phosphate, PI: Adina Paytan (UC Santa Cruz)

  • Quantifying how legumes and wheat affect phosphorus (P)-mobilization in the rhizosphere, PI: Peter Vitousek (Stanford), Student: Gabriel Maltais-Landry

  • Remote aerial sensing of reduced irrigation and fertilizer, PI: Darren Drewry (Jet Propulsion Laboratory), S. Ustin, K. Scow

  • Role of Microbiological and Geochemical Heterogeneity in the Fate and Transport of Nitrogen through the Vadose Zone. T. Harter, K. Scow, S. Parikh, R. Schmidt, F. Mukome

  • Effect of agricultural practices on ammonia oxidizer community (Scow, T. Tantayotyai)

  • Large scale wildflower plantings and weed management (Xerces Society)

  • Compost and organic fertilizers in organic tomatoes (Ecoscraps, K. Scow)

  • Effect of biochar and compost on processing tomatoes (K. Scow, S. Parikh, D. Griffin)

  • Integrated soil fertility management for tomatoes (K. Scow, IAD graduate group)

  • The Impact of Biochar & Biosolid Amendment and Drought & Wet-dry Cycles on Soil Microbial Community and Soil Chemical Properties (K. Scow, D. Wang)

Past research projects (last 5 years)

  • Soil and water management to reduce water losses, energy costs and greenhouse gas emissions in tomato rotations (W. Wallender, M. Burger) 

  • Assessment of Baseline Nitrous Oxide Emissions in California Cropping Systems (W. Horwath)

  • California Integrated Network to Enhance Sustainabe Agroecosystems Science/ California Agroecosystems Planning Project (CAPP) (K. Scow, T. Tomich, L. Jackson, J. Six, J. London)

  • Organic herbicide trial (T. Lanini, S. Horimoto)

  • Reduced irrigation and hydrogel trial (Scow, Y. Yawasaki)

  • Microbiological monitoring and analysis (Scow, P. Singh)

  • CTRI: Effect of mycorrhizal inoculants and plant flavonoid inducers on processing tomatoes (Scow)

  • Evaluating N sufficiency in organic processing tomato production (T. Hartz)

  • Oat variety trial for extension (L. Gallagher)

  • SureHarvest: Russell Ranch Data Collaboration With Stewardship Index For Specialty Crops

  • Sacramento Valley Beginning Farmer Training and Incubator Program (CLBL)

Current Russell Ranch Grants

  • NASA Jet Propulsion Laboratory: Remote Sensing of Russell Ranch Crops (PI: Darren Drewry)

  • AFRI with Santa Cruz: Phosphorus Cycling in Soils: Assessing the Impact of Agricultural Practices on Phosphorous Availability and Loss Using Oxygen Isotopes of Phosphate

  • Evaluation of Winter Cover Crops to Reduce Nitrate Leaching and Increase Yields in Drip-irrigated Tomato Rotations, PI: Wendy Silk, Researcher: Martin Burger

Proposals (pending)

  • NASA Carbon Cycle Science: Impact of Land Management on Microbial Cycling of Carbon  

  • Wells Fargo: Innovative Water Management in Agriculture

  • DWR: Enhancing Energy Production and Producing Valuable Co-Products From Dairy Manure Digester Systems (PI: R. Zhang)

  • CTRI: The Effect of Cover Crops, Compost, and Amendments on Soil

  • ANR: A novel legume-intensive crop system to enhance crop productivity and resource use

  • DOE: Variation in microbial community metabolic potential among different soil microenvironments: importance for soil carbon sequestration