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Table 2 The fitted regression between planting densities (x) and grain yield (y)

From: Evaluation of grain yield based on digital images of rice canopy

N rates Fitted equations R 2 p
N0 y = 8107x + 3153.6 0.9101 0.06309
N1 y = 8881x + 4056.9 0.8804 0.17204
N2 y = 13119x + 2946.8 0.9178 9.56E−04
N3 y = 10260x + 3294.9 0.9387 0.03314
  1. N represents nitrogen