Comparison of selenium treatments of crops in the field
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Field experiments with spring and winter barley and ryegrass were carried out to compare the effect of fertilizers enriched with selenate or selenite with foliar application on the selenium (Se) concentrations in the crops. Application of about 20 g Se/ha given as selenate or about 100 g as selenite in a PK fertilizer and about 5 g Se/ha sprayed on the plants increased the Se-concentrations from insufficient levels to levels that met the animal nutritional requirement. Ryegrass obtained sufficient Se concentrations at lower levels of added Se than did the barley. Toxic concentrations did not occur. The choice of method thus depends on the farming practice in the individual cases.
Index EntriesBarley, spring and winter, field experiments with fertilizer, enriched with selenate or selenite selenium treatments, of crops, comparison of ryegrass, field experiments with foliar application selenate selenite selenium
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- 1.G. Gissel-Nielsen, U. C. Gupta, M. Lamand, and T. Westermarck,Adv. Agromony 37, 397 (1984).Google Scholar
- 2.E. B. Davies, and J. H. Watkinson,NZ J Agric. Res. 9, 317 (1966).Google Scholar
- 4.G. Gissel-Nielsen, Risø Report no. 370, 21–29 and Appendix II and XIII (1977).Google Scholar
- 6.T. Yläranta,Dissertation from Agric. Res. Centre, Jokioinen, Helsinki (1985).Google Scholar
- 7.J. H. Watkinson,NZ Med. J. 31, 78 (1983).Google Scholar
- 9.F. C. C. Hupkens van der Elst, and J. H. Watkinson,NZ J. Exp. Agric. 5, 79 (1977).Google Scholar