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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
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