| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4478746 | Agricultural Water Management | 2014 | 8 Pages |
•Admissible irrigation in relation to emitter discharge rates has been examined.•Method for location of the wetting front has been developed for point irrigation.•Soil–water relationships in the soil under point irrigation, has been developed.•Field experimental method is rapid and simple, and provides consistent results.•Incorrect point irrigation can cause serious environmental damage.
The main objective of this paper is determination of principal relationships influencing the distribution of moisture content in a soil profile under an emitter in point irrigation. Research was carried out by conducting field experiments. They determined geometry of wetted soil volume in a soil profile under point irrigation. Infiltration of water from a single emitter and the resulting spatial distribution is a typical feature of localized irrigation technology. The field experiments using different emitter discharges and various periods of irrigation on haplic Luvisol (ha LV) (ALFISOLS Udalfs) on loess were conducted in a soil profile 1 m deep.Admissible duration of irrigation in relation to discharge rates has been calculated and illustrated in a graph. Incorrect irrigation practices can cause serious environmental damage. A method for determining the width and depth of the wetted soil volume under the point irrigation was developed. This method is rapid and simple, and it gives consistent results.
