The method for the fast estimation of a plant nitrogen status: Possibility to use SPAD chlorophyll meter
Brza procena obezbeđenosti biljaka azotom - mogućnost korišćenja SPAD hlorofilmetra
Apstrakt
The main objective of this study was to test the possibility to use the SPAD-meter as an appropriate tool for the fast estimation of a nitrogen status in both, Italian ryegrass (Lolium italicum L.) and catch weed (Galium aparine L.) that occurred as a predominate Italian ryegrass weed species. The measurements of the SPAD-units were conducted four times (from the stage of the Italian ryegrass stem elongation to the seed ripening stage, in two-week intervals) during the growing season, followed by the chemical analyses of nitrogen in the same leaf material. The high correlation between the leaf nitrogen content (expressed as a percentage per dry weight basis) and SPAD-units, were found in all treatments (varying from 0.75 lt Rxy≤0.90 to 0.90 lt Rxy≤0.99). Obtained results showed that method based upon using a SPAD chlorophyll meter was suitable for a quick estimation of the nitrogen status in plants.
U ovom radu ispitivana je mogućnost korišćenja ručnog prenosnog SPAD (Spectral Plant Analysis Diagnostic) hlorofilmetra (SPAD-502) za brzo merenje sadržaja azota u usevu Lolium italicum L. i korovskoj vrsti Galium aparine L. Na osnovu korelacione analize utvrđeno je da postoji jaka do vrlo jaka pozitivna zavisnost (od 0,75 lt Rxy≤0,90 do 0,90 lt Rxy≤0,99) između sadržaja azota u biljkama određenog standardnom hemijskom (Kjeldahlovom) metodom i procene njegovog sadržaja dobijenog na osnovu SPAD očitavanja. Dobijeni rezultati ukazuju da je metoda zasnovana na korišćenju SPAD hlorofilmetra podesna za brzu procenu obezbeđenosti biljaka azotom.
Ključne reči:
azot / biljka / hlorofil / Minolta SPAD-502Izvor:
Journal of Scientific Agricultural Research, 2008, 69, 1, 31-39Izdavač:
- Savez poljoprivrednih inženjera i tehničara, Beograd
Institucija/grupa
Poljoprivredni fakultetTY - JOUR AU - Božić, Dragana AU - Simić, Aleksandar AU - Kresović, Mirjana AU - Vrbničanin, Sava AU - Vučković, Savo PY - 2008 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/1748 AB - The main objective of this study was to test the possibility to use the SPAD-meter as an appropriate tool for the fast estimation of a nitrogen status in both, Italian ryegrass (Lolium italicum L.) and catch weed (Galium aparine L.) that occurred as a predominate Italian ryegrass weed species. The measurements of the SPAD-units were conducted four times (from the stage of the Italian ryegrass stem elongation to the seed ripening stage, in two-week intervals) during the growing season, followed by the chemical analyses of nitrogen in the same leaf material. The high correlation between the leaf nitrogen content (expressed as a percentage per dry weight basis) and SPAD-units, were found in all treatments (varying from 0.75 lt Rxy≤0.90 to 0.90 lt Rxy≤0.99). Obtained results showed that method based upon using a SPAD chlorophyll meter was suitable for a quick estimation of the nitrogen status in plants. AB - U ovom radu ispitivana je mogućnost korišćenja ručnog prenosnog SPAD (Spectral Plant Analysis Diagnostic) hlorofilmetra (SPAD-502) za brzo merenje sadržaja azota u usevu Lolium italicum L. i korovskoj vrsti Galium aparine L. Na osnovu korelacione analize utvrđeno je da postoji jaka do vrlo jaka pozitivna zavisnost (od 0,75 lt Rxy≤0,90 do 0,90 lt Rxy≤0,99) između sadržaja azota u biljkama određenog standardnom hemijskom (Kjeldahlovom) metodom i procene njegovog sadržaja dobijenog na osnovu SPAD očitavanja. Dobijeni rezultati ukazuju da je metoda zasnovana na korišćenju SPAD hlorofilmetra podesna za brzu procenu obezbeđenosti biljaka azotom. PB - Savez poljoprivrednih inženjera i tehničara, Beograd T2 - Journal of Scientific Agricultural Research T1 - The method for the fast estimation of a plant nitrogen status: Possibility to use SPAD chlorophyll meter T1 - Brza procena obezbeđenosti biljaka azotom - mogućnost korišćenja SPAD hlorofilmetra EP - 39 IS - 1 SP - 31 VL - 69 UR - https://hdl.handle.net/21.15107/rcub_agrospace_1748 ER -
@article{ author = "Božić, Dragana and Simić, Aleksandar and Kresović, Mirjana and Vrbničanin, Sava and Vučković, Savo", year = "2008", abstract = "The main objective of this study was to test the possibility to use the SPAD-meter as an appropriate tool for the fast estimation of a nitrogen status in both, Italian ryegrass (Lolium italicum L.) and catch weed (Galium aparine L.) that occurred as a predominate Italian ryegrass weed species. The measurements of the SPAD-units were conducted four times (from the stage of the Italian ryegrass stem elongation to the seed ripening stage, in two-week intervals) during the growing season, followed by the chemical analyses of nitrogen in the same leaf material. The high correlation between the leaf nitrogen content (expressed as a percentage per dry weight basis) and SPAD-units, were found in all treatments (varying from 0.75 lt Rxy≤0.90 to 0.90 lt Rxy≤0.99). Obtained results showed that method based upon using a SPAD chlorophyll meter was suitable for a quick estimation of the nitrogen status in plants., U ovom radu ispitivana je mogućnost korišćenja ručnog prenosnog SPAD (Spectral Plant Analysis Diagnostic) hlorofilmetra (SPAD-502) za brzo merenje sadržaja azota u usevu Lolium italicum L. i korovskoj vrsti Galium aparine L. Na osnovu korelacione analize utvrđeno je da postoji jaka do vrlo jaka pozitivna zavisnost (od 0,75 lt Rxy≤0,90 do 0,90 lt Rxy≤0,99) između sadržaja azota u biljkama određenog standardnom hemijskom (Kjeldahlovom) metodom i procene njegovog sadržaja dobijenog na osnovu SPAD očitavanja. Dobijeni rezultati ukazuju da je metoda zasnovana na korišćenju SPAD hlorofilmetra podesna za brzu procenu obezbeđenosti biljaka azotom.", publisher = "Savez poljoprivrednih inženjera i tehničara, Beograd", journal = "Journal of Scientific Agricultural Research", title = "The method for the fast estimation of a plant nitrogen status: Possibility to use SPAD chlorophyll meter, Brza procena obezbeđenosti biljaka azotom - mogućnost korišćenja SPAD hlorofilmetra", pages = "39-31", number = "1", volume = "69", url = "https://hdl.handle.net/21.15107/rcub_agrospace_1748" }
Božić, D., Simić, A., Kresović, M., Vrbničanin, S.,& Vučković, S.. (2008). The method for the fast estimation of a plant nitrogen status: Possibility to use SPAD chlorophyll meter. in Journal of Scientific Agricultural Research Savez poljoprivrednih inženjera i tehničara, Beograd., 69(1), 31-39. https://hdl.handle.net/21.15107/rcub_agrospace_1748
Božić D, Simić A, Kresović M, Vrbničanin S, Vučković S. The method for the fast estimation of a plant nitrogen status: Possibility to use SPAD chlorophyll meter. in Journal of Scientific Agricultural Research. 2008;69(1):31-39. https://hdl.handle.net/21.15107/rcub_agrospace_1748 .
Božić, Dragana, Simić, Aleksandar, Kresović, Mirjana, Vrbničanin, Sava, Vučković, Savo, "The method for the fast estimation of a plant nitrogen status: Possibility to use SPAD chlorophyll meter" in Journal of Scientific Agricultural Research, 69, no. 1 (2008):31-39, https://hdl.handle.net/21.15107/rcub_agrospace_1748 .