Using Soil Moisture Sensors for Automated Irrigation Scheduling in a Plum Crop
| Autor: | Sandra Millán, Jaume Casadesús, María José Moñino, Carlos Campillo, M.H. Prieto |
|---|---|
| Přispěvatelé: | Producció Vegetal, Ús Eficient de l'Aigua en Agricultura |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Irrigation
lcsh:Hydraulic engineering precision irrigation 0208 environmental biotechnology Geography Planning and Development Deficit irrigation feedback 02 engineering and technology Drip irrigation Agricultural engineering Aquatic Science Biochemistry lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 water management Water-use efficiency Cover crop Water content Water Science and Technology lcsh:TD201-500 drip irrigation Irrigation scheduling 04 agricultural and veterinary sciences crop efficient 020801 environmental engineering Water resources 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science |
| Zdroj: | Water Volume 11 Issue 10 IRTA Pubpro. Open Digital Archive Institut de Recerca i Tecnologia Agroalimentàries (IRTA) Water, Vol 11, Iss 10, p 2061 (2019) |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w11102061 |
| Popis: | The growing scarcity and competition for water resources requires the urgent implementation of measures to ensure their rational use. Farmers need affordable irrigation tools that allow them to take advantage of scientific know-how to improve water use efficiency in their common irrigation practices. The aim of this study is to test under field conditions, and adjust where required, an automated irrigation system that allows the establishment of regulated deficit irrigation (RDI) strategies in a stone fruit orchard. For this, an automated device with an algorithm which combines water-balance-based irrigation scheduling with a feedback adjustment mechanism using 15 capacitive sensors for continuous soil moisture measurement was used. The tests were carried out in 2016 and 2017 in Vegas Bajas del Guadiana (Extremadura, Spain) on an experimental plot of &lsquo Red Beaut&rsquo an early-maturing Japanese plum cultivar. Three irrigation treatments were established: control, RDI and automatic. The control treatment was scheduled to cover crop water needs, a postharvest deficit irrigation (40% crop evapotranspiration (ETc)) strategy was applied in the RDI treatment, while the Automatic treatment simulated the RDI but without human intervention. After two years of testing, the automated system was able to &ldquo simulate&rdquo the irrigation scheduling programmed by a human expert without the need for human intervention. |
| Databáze: | OpenAIRE |
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