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Sticksel, E. und Maidl, F.-X. und Schächtl, J. und Huber, G. und Schulz, J. (2001) Lacer-induced Chlorophyll Fluorescence - a Tool for Online Detecting Nitrogen Status in Crop Stands. In: 3rd ECPA Proceedings, Seiten 959-964. 3rd European Conference on Precision Agriculture, Montpellier.
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Kurzfassung
The on-line monitoring of crop stands is essential in a system of site specific N application. The chlorophyll fluorescence ratio F685/F730 is correlated with chlorophyll content and nitrogen content. Therefore monitoring the laser-induced chlorophyll fluorescence might be used to assess the N status of plants. During the 2000 growing period field campaigns were done with a hand held device to measure the fluorescence ratio F685/F730. Fluorescence ratio was negative correlated with N content and in late growth stages with N uptake as well. The coefficient of correlation was between r=0.976 (N content in dry matter in EC 30 against fluorescence ratio) and r=0.737 (N uptake in EC 37 against fluorescence ratio). The experiences of the 2000 measuring campaign will be applied for the further improvement of the technical design.
| elib-URL des Eintrags: | https://elib.dlr.de/7879/ | ||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Paper) | ||||||||||||||||||||||||
| Zusätzliche Informationen: | LIDO-Berichtsjahr=2001, | ||||||||||||||||||||||||
| Titel: | Lacer-induced Chlorophyll Fluorescence - a Tool for Online Detecting Nitrogen Status in Crop Stands | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2001 | ||||||||||||||||||||||||
| Erschienen in: | 3rd ECPA Proceedings | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| Seitenbereich: | Seiten 959-964 | ||||||||||||||||||||||||
| Herausgeber: |
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| Status: | veröffentlicht | ||||||||||||||||||||||||
| Veranstaltungstitel: | 3rd European Conference on Precision Agriculture, Montpellier | ||||||||||||||||||||||||
| Veranstalter : | European Conference on Precision Agriculture | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||||||
| HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||||||
| HGF - Programmthema: | W EO - Erdbeobachtung | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | W EO - Erdbeobachtung | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | NICHT SPEZIFIZIERT | ||||||||||||||||||||||||
| Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Methodik der Fernerkundung | ||||||||||||||||||||||||
| Hinterlegt von: | Roehl, Cornelia | ||||||||||||||||||||||||
| Hinterlegt am: | 16 Sep 2005 | ||||||||||||||||||||||||
| Letzte Änderung: | 06 Jan 2010 22:04 |
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