Effect of Abiotic Stresses on the Nondestructive Estimation of Rice Leaf Nitrogen Concentration
Figure 4
Reflectance at 550 nm versus leaf N concentration based on dry weight for all samplings and treatments Linear regression was conducted separately for three sampling periods: 29 to 47 days after seeding (DAS), 47 to 57 DAS, and 68 to 95 DAS.