Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Evaluating Intermittent Nutrient Flow for Energy-efficient Nutrient Film Technique Production of Culinary Herbs. |
| Συγγραφείς: |
Regmi, Abishkar1, Liu, He1, Reddy, Jillella Raja Shekhar1, Slaughter, Lindsey1, Laza, Haydee1, Moustaid-Moussa, Naima2,3,4, Simpson, Catherine1 catherine.simpson@ttu.edu |
| Πηγή: |
HortScience. Apr2026, Vol. 61 Issue 4, p812-820. 9p. |
| Θεματικοί όροι: |
*Hydroponics, *Herbs, *Energy consumption, *Phytochemicals, *Crop growth, *Lighting |
| Περίληψη: |
Hydroponic cultivation enables year-round crop production through precise nutrient delivery and a controlled environment. In nutrient film technique (NFT) systems, nutrition solutions typically flow continuously; however, intermittent flow whereby nutrient solutions are paused periodically has been proposed as a more energy-efficient alternative. Although intermittent flow may reduce operational costs by minimizing pump usage, its impact on crop performance remains understudied, particularly for high-value culinary herbs. This study investigated the effects of intermittent and continuous flow, with and without supplemental lighting, on the growth and phytochemical composition of cilantro and parsley. Each herb was grown for 28 days in a greenhouse NFT system, and treatments were assessed for plant height, fresh and dry biomass, root length, total phenolic content, total flavonoid content (TFC), proline, and chlorophyll content. The results showed that nutrient flow significantly affected fresh weight in cilantro, with greater biomass under continuous flow. Other growth parameters were unaffected by flow type. Supplemental lighting significantly enhanced root length, fresh weight, and dry weight in both herbs. Additionally, TFC in cilantro was greater under continuous flow without supplemental light, while proline content in parsley increased with supplemental lighting. These findings suggest that intermittent flow can reduce energy costs without compromising yield in parsley; however, cilantro did not respond similarly, suggesting that individual herbs must be studied more thoroughly before using this technique. This study also emphasizes the importance of supplemental lighting in herb production and the discrepancy between species produced in one system. However, an extrapolated economic analysis could provide insight into the costs and benefits of supplemental lighting on a larger scale. In conclusion, intermittent flow in NFT production of culinary herbs holds promise for reducing costs; however, the impacts on species vary, and this practice may not offset costs incurred by supplemental lighting. [ABSTRACT FROM AUTHOR] |
| Βάση Δεδομένων: |
Academic Search Index |