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Details van artikel 116 van 183 gevonden artikelen
| Titel: |
Macronutrient variation in small grain forage as related to specie and variety |
| Auteur: |
Cummins, D. G. Bitzer, M. J. Nelson, L. R. |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 6 (1975) nr. 6 pagina's 599-607 |
| Jaar: |
1975 |
| Inhoud: |
Incidence of grass tetany on small grain pastures has been related to forage Mg content and K/Ca + Mg ratio. The objective of this study was to relate P, K, Ca, Mg, and the K/Ca + Mg ratio in winter forage to specie and variety. In one year on unlimed soil with low pH, rye forage tended to be higher in P than oats, barley, or wheat. P content increased the next year on higher pH soil with less specie differences. K differed little with specie, and was higher in November than later harvests. Rye tended to be higher in Ca both years, especially in the early harvest. Percent Mg was lower for wheat the first year on the low pH soil than the other species, and percent Mg increased in all species at all harvests the next year on higher pH soil with wheat having similar Mg levels to the other species. The K/Ca + Mg ratio of wheat was higher than rye, oats, and barley on the low pH soil. Liming reduced this ratio to near 2.2 on all species. Grass tetany has been reported more likely to occur when K/Ca + Mg is over 2.2, and this study suggests rye, followed closely by oats and barley, would maintain lower ratios than wheat under conditions of low Mg availability. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 116 van 183 gevonden artikelen
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