10 Oct 2017
2017 California Nursery Conference: Part Two
Jim Owen (Virginia Tech), John D. Lea-Cox (University of Maryland), Tom Fernandez (Michigan State University), Bruno Pitton and Lorence Oki (University of California), John Majsztrik (Clemson University)
This conference, held on July 27, 2017 in Irvine, CA, focused on Water Management in Nursery and Greenhouse Production. The Clean WateR3 team presented their research studies. This second part (of three) covers economic costs of water conservation, how to control pH and salts, as well as tools and models for water management. The topics covered are:
2-1SSaveCostsRefiningSubstrateNutrientProgram (3372 KB) 2-2IrrigationManagementUsingSoilMoistureSensors (2805 KB) 2-3Wheredonutrientsgowhenyouirrigate (2760 KB) 2-4NitrogenManagementPlans (631 KB) 2-5Addingtoolsintoyourwatermanagementtoolbox (447 KB)
14 Sep 2016
Exploring the Influence of Particle Size on Plant Water Availability in Pine Bark Substrates
Fields, J., Owen, J.S., Scoggins, H. (Virginia Polytechnic Institute and State University)
There is potential to reduce water and nutrient use over crop production by optimizing pine bark substrates. Varying pine particle size and the addition of fibrous material (peat and coir) can change the air space, water holding capacity, and plant available water. These insights can help growers develop optimal pine bark substrates that can produce a salable crop with reduced water use.
SNA Research Conference Vol 60 2015
14 Sep 2016
When to Fertigate: The Influence of Substrate Moisture Content on Nutrient Retention in Containerized Crop Production
McPherson, S., Owen, J.S., Brindley, J., Fields, J.S. (Virginia Tech)
The efficient use of fertilizers is key to increase profitability for the agriculture industry (nursery and greenhouse). Fertigation efficiency increased as pine bark substrate moisture increased (38% to 56% gravimetrically). It was hypothesized that mineral retention occured with uniformly distributed water.
SNA Research Conference Vol. 60 2015
SNA When to fertigate (179 KB)