Table 5 Net income of crop rotation system under the organic matter regulation.

From: Response of soil N2O emission and nitrogen utilization to organic matter in the wheat and maize rotation system

Crop

Treatmenta

Fertilizer cost (USD ha−1)

Management cost (USD ha−1)

Yield (kg ha−1)

Output value (USD ha−1)

Net income (USD ha−1)

Wheat

CK

246.3

592.4

4206.5c

1379.2e

540.4e

FN

412.0

655.0

7129.1b

2337.4d

1270.4c

RN

377.1

655.0

7232.8b

2371.4c

1339.3b

HAN

414.0

655.0

7912.8a

2594.4b

1525.4a

RN40% + HOM

799.2

679.6

8034.9a

2634.4a

1155.6d

Maize

CK

221.1

760.1

4024.6c

1079.6e

98.5e

FN

447.8

822.7

7769.2b

2084.1d

813.7d

RN

395.5

822.7

7981.0b

2141.0c

922.8b

HAN

444.6

822.7

8913.0a

2391.0b

1123.7a

RN40% + HOM

782.6

839.2

9419.2a

2526.8a

904.9c

Rotation system

CK

467.4

1352.5

8231.1c

2458.8e

638.9e

FN

859.8

1477.6

14,898.3d

4421.5d

2084.1c

RN

772.6

1477.6

15,213.8b

4512.4c

2262.1b

HAN

858.6

1477.6

16,825.8a

4985.3b

2649.0a

RN40% + HOM

1581.8

1518.8

17,454.1a

5161.2a

2060.6d

  1. aTreatment: CK (zero N), FN (farmers’ traditional inorganic N rate),RN (recommended inorganic-N rate), HAN (zinc and humic acid urea), RN40% + HOM (40% inorganic N rate of RN with homemade organic matters). Different letters in the same column within the same crop and rotation system represent significant differences of mean values at the P < 0.05 level.
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