| Increase in the number of pots per treatment type |
Soil-2018 |
Protocolo |
Diseño experimental |
There were (3x2x2x2) 24 experimental units (3 Cu levels, 2 JBR, 2 plant types and 2 soil types). For each experimental unit a pot is prepared and repeated 3 times. |
There are (4x2) 8 experimental units (4 Cu and 2 JBR levels). For each experimental unit 4 pots are prepared and placed in a tray. This is repeated 3 times. |
Increase the number of pots to obtain sufficient biomass. |
| Biomass obtained at fruiting stage |
Soil-2018 |
Operacionalización |
Procedimientos de medida |
Biomass was collected when plants had 2 to 3 true leaves. |
Biomass was collected when plants reached the fruiting stage. |
Obtain more biomass as plants complete their vegetative cycle. |
| Increasing the volume of the pots |
Soil-2018 |
Protocolo |
Material experimental |
The pots were of the 300 ml tube type. |
The pots were of the 500 ml bucket type. |
Achieve greater root development and produce more biomass. |
| Growing in greenhouses |
Soil-2019 |
Contexto |
Medium |
The experiment was carried out in a culture chamber |
The experiment was carried out in a greenhouse |
Simulate natural conditions. |
| Mustard is only grown |
Soil-2019 |
Protocolo |
Instrumentos de medida |
Two plants were used: barley and mustard. |
Only the mustard plant was used. |
Use the plant with the highest Cu phytoextraction capacity. |
| Naturally contaminated soils |
Soil-2019 |
Operacionalización |
Tratamiento |
Two soil types were sampled: Coria (pH=7.8) and Constantina (pH=5.5). |
Three soil types were sampled: Miraflores-1 and Miraflores-2 (with Pb, Zn and Cu) and Lebrija (not contaminated by metals) |
Use naturally contaminated soils. The Miraflores soils are urban gardens with natural contamination and the Lebrija soil is used as a control. |
| Cu null dose |
Soil-2019 |
Operacionalización |
Tratamiento |
The doses of Cu added to the soils were 0, 500 and 1000 mg/kg |
Soils are not artificially contaminated with Cu |
Experiment with the Cu already in the soil |
| Number of pots per treatment type |
Soil-2019 |
Protocolo |
Diseño experimental |
There were (3x2x2x2) 24 experimental units (3 Cu levels, 2 JBR, 2 plant types and 2 soil types). For each experimental unit a pot is prepared and repeated 3 times. |
There are (3x2) 6 experimental units (3 soils and 2 JBR levels). For each experimental unit 4 pots are prepared forming a block. This is repeated 3 times. |
Analyse the influence of two naturally contaminated soils and a third uncontaminated one. |
| biomass at fruiting phase |
Soil-2019 |
Operacionalización |
Procedimientos de medida |
Biomass was collected when plants had 2 to 3 true leaves. |
Biomass was collected when plants reached the fruiting stage. |
Obtain more biomass as plants complete their vegetative cycle. |
| Increase the volume of pots |
Soil-2019 |
Protocolo |
Material experimental |
The pots were of the 300 ml tube type. |
The pots were of the 500 ml bucket type. |
Achieve greater root development and produce more biomass. |