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Moisture Distribution Pattern Under Best Management Practices
| Content Provider | Scilit |
|---|---|
| Author | Aladakatti, Basamma K. Shanmugasundaram, K. Vinuta, M. B. Mulagund, Jagadeesha |
| Copyright Year | 2018 |
| Description | Book Name: Engineering Interventions in Sustainable Trickle Irrigation |
| Abstract | 320 321A field experiment was conducted from December 2013 to April 2014 in TNAU Coimbatore to find out the effect of mulching on soil physical properties and soil moisture distribution pattern under drip irrigation. Soil physical properties such as bulk density, particle density, and porosity were determined. Bulk density decreased in mulched treatments compared to control. Initially, the bulk density of the soil was 1.37 g $cc^{−1}$. After the crop harvest, the bulk density of the mulched plots decreased to a range of 1.29-1.32 g $cc^{−1}$, whereas in control plots, there was not that much change in the bulk density of the soil compared to the mulching treatments. Porosity of the presowing and postharvest soil samples were measured. Porosity was less before transplanting (42.31%) but increased to greater extent in mulched treatments in postharvest observations. But the amount of increase was less in the control. More moisture was distributed in deeper soil layer below the emitter compared to top layer, and moisture distribution decreased with increase in radial distance from the emitter. It was also seen that at the beginning, water saturated the soil near the emitter and infiltration was slower, but at later stages, water penetrated to deeper layer without any loss as in the case of surface irrigation. This chapter focuses on moisture distribution patterns under drip irrigation and mulching. Irrigation techniques such as border, check basin, and furrow have lower efficiency and nonuniform moisture distribution than drip and sprinkler irrigation methods. Many studies have indicated that the water use efficiency of best drip fertigated treatment was 94% higher than the control furrow irrigated treatment presently being used by farmers. Drip irrigation is the most effective way to supply water and nutrients to the plants not only to save water but also to increase the yield of fruit and vegetable crops. Deep percolation losses are also higher in conventional irrigation methods compared to microirrigation methods. Drip irrigation system is designed to apply precise amount of water near the plant with a certain degree of uniformity. Mulching reduced the bulk density of soil because mulches stop the impact of a rain drop and splash thereby prevents soil compaction, reduces surface runoff, and increases infiltration. |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2016-0-42066-5&isbn=9781315184241&doi=10.1201/9781315184241-17&format=pdf |
| Ending Page | 333 |
| Page Count | 15 |
| Starting Page | 319 |
| DOI | 10.1201/9781315184241-17 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2018-05-04 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Engineering Interventions in Sustainable Trickle Irrigation Horticulture Treatments Moisture Distribution Mulching Irrigation Bulk Density Pattern Under Drip |
| Content Type | Text |
| Resource Type | Chapter |
