Salt Removal by Combining a Permanent Skip Furrow Irrigation and Salt Removal Sheet
| Autor: | Gaukhar K. Paluashova, Haruyuki Fujimaki, Junya Onishi, Yulia I. Shirokova |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Irrigation
Soil salinity Field experiment Salt (chemistry) salinization Soil surface lcsh:Plant culture 010501 environmental sciences 01 natural sciences lcsh:Agriculture skip furrow irrigation lcsh:SB1-1110 Surface irrigation 0105 earth and related environmental sciences chemistry.chemical_classification drylands water-saving lcsh:S Uzbekistan 04 agricultural and veterinary sciences Salinity Agronomy chemistry 040103 agronomy & agriculture Ridge (meteorology) 0401 agriculture forestry and fisheries Environmental science salt removal sheet |
| Zdroj: | Frontiers in Agronomy, Vol 3 (2021) |
| ISSN: | 2673-3218 |
| DOI: | 10.3389/fagro.2021.659722 |
| Popis: | Skip furrow irrigation (SFI) can save water by irrigating every alternate furrow. Usually, irrigated furrows are alternated at each irrigation event under SFI. If irrigated furrows are fixed (permanent SFI, PSFI), more water may be saved by reducing the wetting area, and salts may accumulate on the dry side of the ridge. Salt removal sheet, a method of collecting salts on the sheet laid on the soil surface utilizing high evaporation demand in drylands, may be an efficient measure for removal of accumulated salt under PSFI. We evaluated salinity movement and water saving under PSFI through a field experiment in Uzbekistan. In addition, a salt removal sheet was applied to the shoulder of the ridge on the drier side under PSFI to evaluate its potential in removing salt from the soil with the practice. The results showed that salts tend to accumulate on the dry side of the ridge, and the amount of irrigation water was halved without a large crop yield reduction. The PSFI + Sheet was able to catch 6.4% of salts in the top 10 cm soil layer. |
| Databáze: | OpenAIRE |
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