Table 8 Wheat Yields - Rotation-Fertilizer Series - 1956

Wheat Yields on:

Yield - Bu. per acre

2 yr. av. yield 1955-1956

Rep 1

Rep 2

Rep 3

Av.

1955

1. DD Cornland, fertilized

2.3

3.2

4.4

3.3

27.8

15.6

2. DD Cornland, the corn fertilized the previous year.

3.4

1.5

4.4

3.1

25.5

14.3

3. DD Cornland, check

2.1

3.6

2.5

2.7

17.2

10.0

Table 9 - Corn Grain Yields - Rotation-Fertilizer Series - 1956

Corn Grain Yields on:

Yield - Bu. per acre

2 yr. av. Yield 1955 -1956

Rep 1

Rep 2

Rep 3

Av.

1955

1. SP Wheat stubble, fertilized

5.5

2.8

18.1

8.8

23.1

16.0

2. SP Wheat stubble, wheat fertilized the previous year

7.1

11.0

16.1

11.4

26.0

18.7

3. SP Wheat stubble, check

7.1

5.9

15.7

9.6

24.6

17.1

Table 10 - Corn Silage Yields - Rotation-Fertilizer Series - 1956

Corn Silage Yields on:

Yield Tons per acre

2 yr. av. Yield

Rep 1

Rep 2

Rep 3

Av.

1955

1. Sp wheat stubble, fertilized

2.92

3.12

3.38

3.14

2.98

3.06

2. Sp wheat stubble, wheat fertilized the previous year.

2.70

3.78

4.00

3.49

2.96

3.23

3. Sp wheat stubble, check

2.78

3.60

3.28

3.22

2.89

3.05