Suitability of On-Farm Green Compost for the Production of Baby Leaf Species
| Autor: | Antonella Vitti, Giuseppe Celano, Enrica De Falco, Domenico Ronga |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Lactuca
Plant Science Root system pot substrate Horticulture engineering.material complex mixtures SB1-1110 controlled environment sustainable production organic amendment biology Chemistry Compost fungi Plant culture food and beverages biology.organism_classification Potting soil Potting Seedling Germination Shoot engineering species for salads |
| Zdroj: | Horticulturae Volume 7 Issue 11 Horticulturae, Vol 7, Iss 512, p 512 (2021) |
| Popis: | This study evaluated, for the first time, the suitability of on-farm green compost (GC) from the fourth range sector for the production, in a controlled environment, of six baby leaf species (radish, lettuce, rocket, chard, sorrel and dill), characterized by short cultivation cycles. The pH and electrical conductivity of potting soil-compost mixtures were affected by the different amounts of GC added to the potting soil. Germination tests on Lactuca sativa seeds indicated no phytotoxic effects when GC was used to prepare aqueous extracts diluted at 50% and 25% (v/v). In the pot experiment, GC was used at four different dosages in the growing medium, inducing different impacts on growth parameters, depending on the species and applied dose. The greatest plant growth responses were determined by using less than 3.5 g of GC in 100 g of potting soil. Significant positive correlations between the dry weights of root and shoot (r = 0.77 **), seedling height (r = 0.51 **) and the number of true leaves number (r = 0.56 **) confirmed the close relationship between the root system biomass and the growth parameters of aboveground organs. The study highlights that on-farm green compost, used as partial growing substrate, provides a good opportunity to obtain baby leaf species with well-developed root systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|