On-farm soil frost control has been used for the management of volunteer potatoes
(Solanum tuberosum L.), a serious weed problem caused by climate change, in northern
Japan. Deep soil frost penetration is necessary for the effective eradication of unharvested
small potato tubers; however, this process can delay soil thaw and increase soil wetting in
spring, thereby delaying agricultural activity initiation and increasing nitrous oxide emissions
from soil. Conversely, shallow soil frost development helps over-wintering of unharvested …