Table 1 The soil bulk density and field capacity in 0–200 cm soil layers in the experimental plots.

From: Single irrigation at the four-leaf stage in the spring optimizes winter wheat water consumption characteristics and water use efficiency

Soil layer (cm)

0–20

20–40

40–60

60–80

80–100

100–120

120–140

140–160

160–180

180–200

Bulk density (g cm−3)

1.34

1.59

1.55

1.60

1.60

1.59

1.60

1.60

1.59

1.58

Field capacity (%)

35.2

35.3

37.6

37.7

38.0

35.9

35.0

35.0

33.2

34.6

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