Table 3 Summary - Wheat Yields - 1956 Rotation and Tillage Trials

Cultural Method

No. Plots1

1951

1952

1953

1954

1955

1956

45 year Average

Relative Yields % - 45 year Av.

Fallow

4

23.9

10.7

22.2

9.2

23.6

8.9

20.7

100

Green Manure

3

23.7

8.9

24.3

12.0

24.9

9.4

18.8

91

Disked Cornland

9

21.4

9.8

20.7

9.4

20.5

1.7

18.2

88

S.P. Stubble

1

13.5

7.5

18.7

8.7

17.2

3.4

13.4

65

F.P. Stubble

2

15.6

9.0

18.7

10.3

15.1

1.4

14.8

71

Continuous:

Spring Plowing

1

13.7

7.5

15.8

9.0

21.5

2.1

11.5

56

Fall Plowing

1

13.0

9.2

14.6

4.5

12.2

0.0

11.0

53

Alternate Wheat and Fallow

1

22.2

8.2

21.2

10.3

20.7

7.2

19.6

95

1May vary slightly from year to year. Figures given are for 1956.

Table 4 - Summary - Oat Yields - 1956 Rotation and Tillage Trials

Cultural Method

No. Plots2

1951

1952

1953

1954

1955

1956

45 yr. Ave.

Relative Yields % - 45 Yr. Ave.

Fallow

2

62.2

27.3

59.5

32.1

61.1

16.1

46.8

100

Green Manure

3

54.6

24.6

65.1

38.0

64.2

19.2

45.2

97

Disked Cornland

5

54.2

22.1

48.9

26.6

43.6

2.2

37.2

80

S.P. Stubble

4

35.6

22.5

58.7

33.0

55.9

5.5

36.1-

77

F.P. Stubble

5

37.1

26.3

50.0

19.1

38.5

0.0

32.1

69

Sod

3

44.9

26.5

48.2

22.3

52.0

2.7

33.8

72

Continuous:

Spring Plowing

1

42.5

16.9

37.8

25.3

35.9

3.1

26.6

57

Fall Plowing

1

33.8

20.0

31.6

13.1

28.8

0.0

24.6

53

Alternate wheat and fallow

1

60.6

29.4

50.3

32.2

57.5

20.3

45.5

97

2May vary slightly from year to year. Figures given are for 1956.

Table 5 - Summary Barley Yields - 1956 Rotation and Tillage Trials

Cultural Method

No. Plots

1951

1952

1953

1954

1955

1956

45 yr. Ave.

Relative Yields % - 45 Yr. Ave.

Disked Cornland

1

35.2

15.9

29.3

15.5

23.3

0.0

21.2

87

S.P. Stubble

1

22.7

12.4

29.0

18.4

20.4

5.3

16.2

67

Continuous:

Spring Plowing

1

28.1

16.9

27.1

15.9

20.8

0.0

16.0

66

Fall Plowing

1

29.2

20.0

23.7

6.5

15.6

0.0

14.8

61

Alternate Barley and fallow

1

38.5

29.4

32.4

15.5

25.4

16.0

24.2

100

Table 6 - Summary - Corn Grain Yields - 1956 Rotation and Tillage Trials

Cultural Method

No. Plots3

1951

1952

1953

1954

1955

1956

45 yr. Av.

Relative Yields % - 45 yr. Av.

Spring Plowing

18

23.2

16.0

50.0

14.9

16.6

10.4

17.6

100

Fall Plowing

4

25.5

18.1

30.0

4.7

9.6

6.2

16.2

92

Continuous:

Spring Plowing

1

29.1

14.9

22.9

4.2

17.9

9.4

19.0

108

Fall Plowing

1

34.4

17.6

14.3

3.3

21.4

6.7

18.9

107

Alternate corn and fallow

1

29.1

32.9

14.3

12.0

35.0

44.8

20.9

119

3May vary slightly from year to year. Figures given are for 1956.

Table 7 - Summary Corn Silage Yields - 1956 Rotation and Tillage Trials

Cultural Method

No. Plots

19514

1952

1953

1954

1955

1956

45 yr. Av.

Relative Yields % - 45 yr. Av.

Spring Plowing

18

3.96

2.78

6.6

5.71

3.43

3.35

3.58

100

Fall plowing

4

4.36

2.73

5.09

3.73

2.07

2.65

3.13

88

Continuous:

Spring Plowing

1

4.09

1.35

4.45

2.60

2.40

3.15

3.19

89

Fall Plowing

1

4.76

2.30

3.55

3.90

1.78

3.15

3.06

85

Alternate corn and fallow

1

3.90

3.50

4.80

5.55

3.36

5.60

3.45

96

4Silage yields for 1951 figured o3.90n basis of air dry corn fodder yield calculated as 50% of silage weight.