Table 1 Dry matter distribution in wheat at 45, 75, and 105 days after seed emergence (DAS) and maturity under different planting systems.

From: Spatial differences influence nitrogen uptake, grain yield, and land-use advantage of wheat/soybean relay intercropping systems

Years

Planting systems

Wheat dry matter distribution (g m-2)

45 DAS

75 DAS

105 DAS

Maturity

Root

Straw

Root

Straw

Root

Straw

Root

Straw

Grains

2018–19

Narrow strips

12.0 ± 1.8NS

100.8 ± 8.0NS

40.8 ± 2.9c

340.2 ± 7.9c

83.8 ± 4.3c

534.7 ± 8.3c

97.8 ± 7.7c

575.7 ± 19.8d

214.1 ± 18.1c

Medium strips

11.8 ± 1.3

106.8 ± 5.3

45.3 ± 2.4bc

411.1 ± 12.7b

90.6 ± 5.4c

580.5 ± 9.4b

115.5 ± 8.7bc

641.4 ± 35.3c

245.9 ± 20.2bc

Wide strips

14.1 ± 1.4

114.7 ± 5.0

52.0 ± 2.9ab

438.6 ± 13.8ab

108.5 ± 2.3b

605.5 ± 13.0b

133.7 ± 12.1b

801.1 ± 46.0b

286.7 ± 19.5b

Sole wheat

15.0 ± 1.3

120.6 ± 2.8

56.7 ± 2.1a

480.9 ± 21.8a

128.1 ± 6.0a

724.8 ± 3.6a

192.9 ± 23.8a

959.1 ± 42.9a

415.3 ± 17.3a

LSD

5.7

21.2

8.8

52.7

14.6

28.5

29.1

48.9

50.9

2019–20

Narrow strips

10.1 ± 1.3NS

102.5 ± 8.3NS

41.2 ± 2.4c

346.1 ± 8.5c

89.1 ± 2.6b

550.3 ± 9.2c

102.2 ± 7.9b

596.9 ± 20.7d

227.6 ± 18.6b

Medium strips

10.6 ± 1.4

108.7 ± 5.5

47.3 ± 1.2bc

419.4 ± 13.2b

91.4 ± 3.2b

598.2 ± 9.7b

118.2 ± 9.1b

665.3 ± 38.2c

248.1 ± 20.4b

Wide strips

12.8 ± 1.5

116.2 ± 4.7

52.1 ± 3.0ab

446.3 ± 15.1ab

101.8 ± 4.0b

624.1 ± 13.5b

126.8 ± 12.6b

831.4 ± 47.9b

275.7 ± 15.3b

Sole wheat

13.8 ± 1.4

123.0 ± 2.9

56.9 ± 2.2a

460.8 ± 21.4a

124.6 ± 13.7a

746.7 ± 24.5a

198.8 ± 19.2a

995.3 ± 32.4a

424.4 ± 17.1a

LSD

5.4

21.5

8.5

53.7

26.1

42.0

25.7

47.5

51.3

2020–21

Narrow strips

8.2 ± 1.2NS

94.9 ± 8.0NS

37.0 ± 2.3c

326.5 ± 8.3c

78.4 ± 2.5b

511.1 ± 37.6c

89.1 ± 9.9c

551.9 ± 19.8d

200.1 ± 21.9c

Medium strips

8.4 ± 0.9

100.8 ± 5.2

42.9 ± 4.1bc

397.1 ± 12.6b

80.7 ± 3.0b

557.1 ± 25.4c

104.4 ± 8.7c

617.5 ± 35.2c

220.5 ± 25.4bc

Wide strips

10.8 ± 1.4

108.0 ± 4.5

47.5 ± 2.8ab

422.9 ± 14.5ab

101.2 ± 5.4a

608.6 ± 16.4b

136.0 ± 15.2b

776.9 ± 45.9b

269.7 ± 13.2b

Sole wheat

11.7 ± 1.3

114.5 ± 2.7

52.1 ± 2.1a

436.8 ± 21.2a

112.6 ± 7.7a

699.7 ± 31.9a

181.5 ± 23.7a

934.2 ± 43.1a

389.2 ± 18.5a

LSD

4.6

20.7

11.3

52.4

16.7

96.4

29.7

49.0

50.8

  1. Means are averages over three replicates ± standard error of the mean. NS: Non-significant differences were detected between means using the LSD test.