Economies of Size for Conventional Tillage and No-till Wheat Production



Table 4. Machinery Complements for Conventional Tillage and No-till Wheat Production

Systems for Alternative Farm Sizes__________________________________________________

_________Machine______

Machine
Width
(Feet)

Field
Speed
(MPH)

Field
fficienc
(%) ^

Draft / ft. of

y Implement Conventional

No-till

(Lbs.)

Tillage

________________________________320-Acre Farm________________________________

95 hp Tractor

Moldboard Plow

4.75

4.5

85

1250

Chisel

8.55

5

85

625

Disk

10.48

6

80

425

Conventional-Till Drill

10

5

70

225

No-Till Drill

10

5

70

400

640-Acre Farm

155 hp Tractor

Moldboard Plow

7.75

4.5

85

1250

Chisel

18.6

5

85

625

Disk

17.1

6

80

425

Conventional-Till Drill

20

5

70

225

No-Till Drill

20

5

70

400

________________________________1,280-Acre Farm________________________________

95 hp Tractor

Sprayer

40

6.5

65

200

Fertilizer Spreader

40

7

70

200

155 hp Tractor

No-Till Drill

20

5

70

400

Conventional-Till Drill

20

5

70

225

Sprayer

60

6.5

65

200

Fertilizer Spreader

40

7

70

200

170 hp Tractor

Moldboard Plow

8.5

4.5

85

1250

Chisel

20.4

5

85

625

Disk__________________

18.75

6

80

425

15



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