Akademik Veri Yönetim Sistemi
International Journal of ChemTech Research, cilt.1, sa.2, ss.212-224, 2009 (Scopus)
There is an increasing use of HandHeld spectroradiometer data to determine nutrient contents and stress for green vegetation of hyperspectral reflectance. The objective of this study was to investigate the prediction possibility of some macro and micro nutrient contents of different deciduous orchard (pear, cherry, peach and apricot) using spectroradiometer. For this purpose, hyperspectral reflectance values obtained from blue, green, red and near-infrared bands using plant probe and foreoptic lens (10° angle) apparatus of spectroradiometer. Hyperspectral reflectance data were used to predict the N, P, K, Ca, Mg, Fe, Zn, Mn and Cu contents using multi regression analysis method. The results of study indicated that there is a relationship between spectral reflectance values and nutrient contents. The values obtained from spectroradiometer may be useful for predicting the N, P, K, Mg and Mn contents of deciduous orchards leaves in field. However, it was not adequate to predict values of Ca, Fe, Zn and Cu contents. The uses of plant probe or fore-optic to determine nutrient content were depend on nutrient type such as macro or micro.