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Effective Water Content of a Dystrophic Oxisol Cultivated with Sugarcane
| Content Provider | Semantic Scholar |
|---|---|
| Author | Drumond, A. Cunha, Fernando Nobre Silva, NelmÃcio Furtado Da Teixeira, Marconi B. Soares, Frederico A. L. Vidal, Vitor Marques |
| Copyright Year | 2015 |
| Abstract | This study had the objective to evaluate the effect of irrigation and fertigation (NK) in the effective water content of an Oxisol cultivated with sugarcane. The experimental design comprised randomized blocks in a 5 x 2 factorial scheme, with four replications. Treatments consisted of five levels of water replacement (100, 75, 50, 25 and 0%), with and without fertirrigation (NK). The planting of sugarcane, cultivar RB85-5453, was performed in a double row (W-shaped), 8 m long, with 1.80 m spacing between the double rows, the distance between the crops in the double row was 0.40 m, with a total area of 52,8 m in each paddock. For treatments with water, replacement (WR) a drip tube was placed in the ground at a depth of 0.20 m among the furrows of the double row. The drip tube (DRIPNET PC 16150) comprised a thin wall, 1.0 bar pressure, nominal discharge 1.0 L h, and 0.50 m spacing between drippers. Nitrogen was applied by fertirrigation at a dose of 100 Kg ha, at 30-day intervals, with 10 applications throughout the development of the sugarcane culture. Potassium fertilization was done partially, in 30% of the furrows, and the remaining part was treated with the irrigation water. Nitrogen and potassium were spread only in the treatment with 0% water replacement. Was evaluated effective water content versus log pressure head, at a depth of 10 cm, using RETC software. The effective water content was 0.5 cm cm in the logarithm of the pressure head of 1.34 and 2.1 cm to the water replacement of 25% with and without fertigation. |
| Starting Page | 2746 |
| Ending Page | 2753 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.12702/iii.inovagri.2015-a296 |
| Alternate Webpage(s) | http://www.bibliotekevirtual.org/simposios/III-INOVAGRI-2015/03.09.2015/a296.pdf |
| Alternate Webpage(s) | https://doi.org/10.12702/iii.inovagri.2015-a296 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
