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Details van artikel 7 van 9 gevonden artikelen
| Titel: |
Nitrogen fertilizer management of ratooned grain sorghum |
| Auteur: |
Goodroad, L. L. Duncan, R. R. |
| Verschenen in: |
Journal of plant nutrition |
| Paginering: | Jaargang 11 (1988) nr. 2 pagina's 209-216 |
| Jaar: |
1988-02 |
| Inhoud: |
Sorghum [Sorghum bicolor (L.) Moench] grown in a ratoon cropping system is an alternative double-cropping scheme for the southeastern U.S. Visual symptoms of nitrogen (N) deficiency in the early growth of the ratooned crop suggested that improved N fertilizer management might increase grain yields of the ratooned crop. Five hybrids: Coker 7737, Gold Kist 802G, Northrup King NK 2660, DeKalb DK-59 and Pioneer Brand 8311 were grown in a ratoon cropping system on a Greenville sandy clay loam (Rhodic Paleudult). Nitrogen fertilizer treatments for the ratoon crop were applied at flowering of the planted crop (90 kg ha-1), immediately following ratooning (90 kg ha-1) or split between flowering of the planted crop (45 kg ha-1) and ratooning (45 kg ha-1 ). The N concentrations in the grain and stover of the planted crop were increased by both N rates applied at flowering of the planted crop. Grain yields of the planted or ratooned crops were not affected by the timing of N fertilizer application for the ratoon crop. Nitrogen uptake was higher in the ratoon crop when N was applied following ratooning. Timing of N fertilizer applications for the ratoon crop can affect N uptake by the ratoon crop, however the success of the ratoon system depends on the adaptability of the hybrids. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 9 gevonden artikelen
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