We are exploring how different farm management methods affect yields, fruit quality, and disease pressure/resistance.
Plant Health and Productivity in Context
- Healthy plants help maintain sustainable and profitable crop production
- Plants that are healthy are more resilient to changes in climate (can be more drought tolerant) and pest pressure/disease
- High nutrient content in healthy plants provides a more quality crop product for human and animal consumption
How we look at plant health and productivity
We are investigating ways to Improve plant health and crop productivity at Russell Ranch. Key research questions we are exploring include:
Featured Research Projects
- Tomato yield trends over time
- Tomato soluble solid (%) trends over time
- Disease pressure and resistance
One study featured in our 2018 Research Progress Report (A. Gaudin, C. Casteel, R. Vannette, R. Blutnell, J. Schmidt, T. Bowles, and F. Bender, UC Davis and UC Berkeley) found that organic fields had lower pest populations compared to conventional sites and that differences were due partially to increased plant resistance. Beet leafhoppers consistently prefer to settle on conventionally grown tomato plants rather than organically grown plants at Russell Ranch.
- Optimizing Potassium Fertilizer Uptake Efficiency while Minimizing Costs in Processing Tomato
Identify the method and timing of K fertilization that results in the greatest uptake of K in tomato while minimizing costs; i.e., getting the most K uptake per dollar investment, when comparing fall broadcast to in-season fertilization.
(1) Measure exchangeable K in soils at tomato transplanting and early flower
(2) Measure tomato tissue-K levels at full bloom
(3) Evaluate fertilizer and application costs
(4) Compare yields
Read more about the project in the full report.