Furrow irrigation with alternating dry and watered (wet) furrows
Type: Technologies
Creation: 2018-04-15 09:40 Updated: 2020-01-27 20:37
Compilers: Rustam Ibragimov
Reviewers: Alexandra Gavilano, Olga Andreeva, Elizaveta Soloveyva
Country/ region/ locations where the Technology has been applied and which are covered by this assessment
- Country: Uzbekistan
- Region/ State/ Province: Khiva district, Khorezm region; Mirzaabad district, Syrdarya region
- Map: View Map
Description of the SLM Technology
Short description of the Technology
To prevent large crop losses, it is recommended to water row crops through the furrow. Dry and watered furrows are rotated. Watering is carried out during periods of lack of water (low water).
Detailed description of the Technology
Irrigated agriculture is the basis of agricultural production in Uzbekistan. However, water scarcity is a limiting factor, especially in dry years. Watering through the furrow is a technological method used by farmers in conditions of limited water supply. This allows to reduce the duration of irrigation by 1.3 - 2.4 times. The water demand for irrigation and the total water consumption (evaporation and transpiration) is reduced by 20-25%. Due to the technology, the cotton bushes are short with a well-developed root system. Monitoring of soil moisture using sensors showed that soil moisture at a depth of 40 cm in dry (not flooded) and wet (flooded) furrows is almost the same at the beginning of the second irrigation.
Consequently, in conditions of close groundwater table, it is better to start irrigation through the furrow not from the first irrigation, but from the second irrigation. This will minimize the possible crop damage because of the lack of soil moisture. The soil moisture equitability (and salt background) can be ensured by the rotation of irrigated and non-irrigated furrows at each subsequent irrigation. It is recommended to rotate flooded and dry furrows from watering to watering (even - 1 watering, odd - second watering, etc.).
Esteblishment activities and costs of inputs
Activities and contributions to the introduction / content: The practice of preparing the field is common, as with the farmer. On the plot of irrigated land under sowing of cotton (farm field), furrows are cut 100 m long, irrigation through the furrow is carried out by supplying more than usual water consumption
1. Land preparation: site levelling, plowing, salinization flushing
2. Channel development
3. Furrow irrigation
4. Agro-technological operations.
5. Flushing after cotton vegetation
Photos of the Technology
