Evaluation location: Wisconsin, United States
This data is from a Master’s Thesis of Gulden Zont, 1997, Dept Soil Science, University of Wisconsin, Madison, major professor P. K. Barak. Twenty-four aeroponic chambers of a type described by Peterson and Krueger (1988) and used by Barak et al., (1996) were prepared (Figure 2. 1). Each chamber lid held four seedling plants with support of plugs inserted into a Styrofoam cover with a drain at the bottom of the root chamber. Supplies of nutrient solutions for three chambers were stored in 17-liter stainless-steel canisters and dispensed through spray nozzles using timer-activated solenoids. Nutrient solution was intermittently misted on the roots at a rate of approximately 5 ml, at an interval of every 5 minutes. Supplemental light was provided with high-pressure sodium halide lights to ensure 16 h of light per day. Two experiments were done in January and June, 1997, each lasting about 55 days. The plants from each container were combined and separated into roots, shoots and tubers and fresh weights were measured. Samples were dried in a forced-air oven at 65°C for 7 days and parts weighed. Results of the two experiments were pooled and summarized by USPG staff for the data presented in GRIN.
Barak, P., Smith, J.D., Krueger, A.R., and Peterson, L.A. 1996. Measurement of short-term nutrient uptake rates in cranberry by aeroponics. Plant, Cell, Environ. 19:237-242.
Peterson, L.A., Krueger, A.R. 1988. An intermittent aeroponics system. Crop Science, 28:7 12-7 13.