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Strip-till
Strip-till is a conservation system that uses a minimum tillage. It combines the soil drying and warming benefits of conventional tillage with the soil-protecting advantages of no-till by disturbing only the portion of the soil that is to contain the seed row. This type of tillage is performed with special equipment and can require the farmer to make multiple trips,〔 depending on the strip-till implement used, and field conditions. Each row that has been strip-tilled is usually about eight to ten inches wide.〔
==Challenges of both Strip-till and No-till systems==
In reduced tillage strategies, weed suppression can be difficult. In place of cultivation, a farmer can suppress weeds by managing a cover crop, mowing, crimping, or herbicide application. The purchase of mowing and crimping implements may represent an unjust expenditure. Additionally, finding an appropriate cover crop mix for adequate weed suppression may be difficult. Also, without mowing or crimping implements it may not be possible to achieve a kill on the cover crop. If mowing, crimping, and suppression with a cover crop mixture fail, herbicides can be applied. However, this may represent an increase in total farm expenses due to herbicides being used in place of cultivation for weed suppression.
There are some disadvantages specific to strip-till systems. Some farmers may not be able to strip-till if there is an early freeze. Though strip tillage can be successful without a global position system (GPS) based guidance, it can be beneficial. Lastly, strip-till systems requires a high-horsepower tractor; however, the energy requirement is less than
with conventional tillage systems.〔(【引用サイトリンク】url=http://wrc.umn.edu/prod/groups/cfans/%40pub/%40cfans/%40wrc/documents/asset/cfans_asset_123091.pdf )〕〔(【引用サイトリンク】url=http://www.ag.ndsu.edu/pubs/ageng/machine/ae1370.pdf )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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