Table 3. Wheat yields - Corn-wheat rotation fertilizer series - 1959
Wheat yields on:
Plot No. Yield - bushels per acre
1 2 3 Av.
DD cornland, fertilized 58,112,116 12.0 8.6 9.2 9.9
DD cornland, corn fertilized in 1958 54,110,114 9.6 6.3 7.3 7.7
DD cornland, check 56,108,118 8.8 13.8 6.5 9.7


Table 4. Silage yields - Corn-wheat rotation fertilizer series - 1959
Corn silage yields on:
Plot No. Green wt. Tons/acre @ 70% moisture
1 2 3 Av.
SP wheat stubble, fertilized 55,111,115 1.89 1.06 1.30 1.42
SP wheat stubble, fertilized in 1958 59,113,117 1.42 1.18 1.42 1.34
SP wheat stubble, check 57,109,119 2.36 2.01 .95 1.77


Table 5. Wheat yields, corn-wheat rotation fertilizer series 1955-59
Wheat yields on: Yield bushels per acre
1955 1956 1957 1958 1959 5 yr.
Av.
DD cornland, fertilized 27.8 3.3 14.7 25.7 9.9 16.3
DD cornland, corn fertilized in 1958 25.5 3.1 12.3 25.6 7.7 14.8
DD cornland, check 17.2 2.7 10.4 24.1 9.7 12.8


Table 6. Silage yields, corn-wheat rotation fertilizer series 1955-1959
Corn silage yields on: Yield - tons per acre
1955 1956 1957 1958 1959 5 yr.
Av.
SP wheat stubble, fertilized 2.98 3.14 8.50 1.80 1.42 3.57
SP wheat stubble, fertilized previous year 2.96 3.49 9.30 2.30 1.34 3.88
SP wheat stubble, check 2.89 3.22 8.70 2.50 1.77 3.82