Automated Measurement of Water Content and Nutrient Concentration in Rockwool Slabs
β Scribed by Hikoji Wakoh; Barry G.D. Haggett
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 247 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0021-8634
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Two alternative models enabling complete automation of individual nutrient replenishment in closed hydroponic systems were developed and tested. Both models require target electrical conductivity and pH values regarding the irrigation solution supplied to the crop as well as target nutrient ratios a
## Abstract Timeβdomain reflectometry (TDR) sensors have been widely used in many fields for measurement of soil water content. However, few TDR sensors have been used in a hyperβarid environment (e.g. less than 0Β·05 m^3^ m^β3^), and such sensor applicability is not yet confirmed. In this study we