Fig. 2. Relationship between near-infrared reflectance spectroscopy (NIRS)–predicted P and reference chemistry P in sugarcane leaves from global calibration of fertilizer rate and water table using simple linear regression.
Fig. 2. Relationship between near-infrared reflectance spectroscopy (NIRS)–predicted P and reference chemistry P in sugarcane leaves from global calibration of fertilizer rate and water table using simple linear regression.