What is the field capacity of a potato planter (semi-automatic)?

• A. 0.15-0.25 ha/hr
• B. 0.10-0.14 ha/hr
• C. ?a) 0.15-0.25 ha/hrb) 0.10-0.14 ha/hrc) 0.40-0.55 ha/hr
• D. 0.09-0.14 ha/hr