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

Table 4. Continued

Machine

Machine
Width
(Feet)

; Field Field Draft / ft. of

Speed Efficiency Implement Conventional

(MPH) (%) (Lbs.) Tillage

No-till

________________________________2,560-Acre Farm________________________________

95 hp Tractor	≠					≠
Sprayer	40	6.5	65	200	≠	≠
Fertilizer Spreader	40	7	70	200	≠	≠
255 hp Tractor					≠	≠
Disk	28.13	6	80	425	≠
Chisel	30.6	5	85	625	≠
Conventional-Till Air Seeder	36	5	70	225	≠
No-Till Air Seeder	36	5	70	400		≠
255 hp Tractor					≠
Moldboard Plow	12.75	4.5	85	1250	≠
Chisel	30.6	5	85	625	≠
Disk_____________________	28.13	6	80	425	√