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| Titel: |
Selenium concentration of bermudagrass after spraying with sodium selenate |
| Auteur: |
Valle, G. McDowell, L. R. Wilkinson, N. S. Wright, D. |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 24 (1993) nr. 13-14 pagina's 1763-1768 |
| Jaar: |
1993-08 |
| Inhoud: |
An experiment was conducted in North Florida to study pasture fertilization with selenium as a method of increasing intake of this nutrient by livestock. Bermudagrass (Cynodon dactylon) was sprayed with sodium selenate at rates of 0, 24, 120, 240, and 480 g/ha of selenium and forage samples were collected for analyses at 2, 4, 6, 12, and 18 weeks after spraying. The bermudagrass from 24 g/ha selenium plots had non-toxic but adequate levels of selenium for livestock at all clipping dates. The 120, 240, and 480 g/ha selenium application rates resulted in toxic forage levels of selenium up to the sixth week after spraying. However, by the twelfth week, the selenium levels were non-toxic and at the same time adequate to meet livestock reguirements. At 18 weeks after spraying, the levels of selenium in the forage were also non-toxic and adeguate for livestock. The results of this study suggest that spraying with 24 g/ha selenium can be an adeguate means to meet reguirements of this mineral for grazing livestock. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 20 van 26 gevonden artikelen
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