1. Alpaslan M, Güneş A, İnal A, 2005. Deneme tekniği. Ankara Üniversitesi Ziraat Fakültesi Yayınları, (1501): 455.
2. Anonim, 2018. http://www.tarim.gov.tr/Konular/Bitkisel-Uretim/Bitki-Besleme-ve-Tarimsal-Teknolojiler/Bitki-Besleme-Istatistikleri.
3. Ayala-Silva T, Beyl CA, 2005. Changes in spectral reflectance of wheat leaves in response to specific macronutrient deficiency. Adv. in Space Res. 35(2): 305-317.
4. Bagheri N, Ahmadi H, Alavipanah S, Omid M 2012. Soil-line vegetation indices for corn nitrogen content prediction. Int. Agrophysics. 26(2): 103-108.
5. Basayigit L, Albayrak S, Senol H, 2009. Analysis of VNIR reflectance for prediction of macro and micro nutrient and chlorophyll contents in apple trees (Malus communis). Asian J. of Chem. 21(2): 1302.