| 摘要 |
A seed planting assembly comprising a laterally extending support member and a planting unit including a planting frame supported by said support member. Said planting unit frame carries, a seed trench opening assembly operable to create a seed trench in a ground surface, a depth regulating member having a vertical position relative to said seed trench opening assembly, wherein said depth regulating member responds to forces upon said planting unit to control ground surface engagement, an arm assembly connecting said depth regulating member to said planting unit frame with a depth monitoring means for indicating whether said depth regulating member is fully engaged with said ground surface wherein said depth monitoring means indicates whether said arm assembly is engaged with said stop means.
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