Measurement Of Nutrients In Green House Soil With Laser Induced Breakdown Spectroscopy
First Online: 06 September 2006 Received: 29 September 2005 Accepted: 17 February 2006 DOI:
Cite this article as: Hussain, T., Gondal, M.A., Yamani, Z.H. et al. Environ Monit Assess (2007) 124: 131. doi:10.1007/s10661-006-9213-x Abstract
Laser-induced breakdown spectroscopy (LIBS) has been applied for the determination of nutrients in the green house soil samples. We determined appropriate spectral signatures of vital nutrients and calibrated the method to measure the nutrients in a naturally fertilized plot, cultivated with tomato and cucumber plants. From the calibration curves we predicted the concentrations of important nutrients such as Ca, K, P, Mg, Fe, S, Ni and Ba in the soil. Our measurements proved that the LIBS method rapidly and efficiently measures soil nutrients with excellent detection limits of 12, 9, 7, 9, 7, 10, 8 and 12~mg/kg for Ca, K, P, Mg, Fe, S, Ni and Ba respectively with a precision of 2%, The unique features of LIBS for rapid sample analysis demonstrated by this study suggests that this method offers promise for precision measurements of soil nutrients as compared to conventional methods in short span of time.
Keywords Laser-induced break down spectroscopy (LIBS) Continuous emissions monitoring Nutrients and soil Trace metals detection LIBS applications Analysis of soil sample References
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