[Elements vary by font]「Prick emissions」appears to be a merging of「repeated」with「pricking wood, woody.」Some dictionaries state this is a wooden PLOW (PLOUGH) used to cut up compacted soil, a combination of elements meaning 'serrated' (such as, a cut tally) merged with 'plants'…however, a wooden plough is relatively weak: it should not require too many thrusting attempts to dis-integrate that wooden implement rather than compacted soil no matter how hard or sharp it may be, soil that had been compacted over centuries, soil not yet plowed and not yet with the rocks removed, so this explanation is dubious at best…unless the plough was actually a horizontal tapered log pulled by a horse and directed into the soil by various means.
　Whatever the true original elements were, it does appear as some tool to plunge into (something) by plowing, a「prick with emissions」(a plow point pricking into dirt and emitting loose soil?) and likely depicts the ACTION OF PLOWING IN SOIL of one variety, or another.
　Simply as「prick emissions」depicts a HANDLE or a GRASP, where to grab ahold, something with a knobbed end: TO COME. Similar to English「get a grip」: 𡗗 with 丨as「offering a taut rod.」
　「Repeatedly bobbing one's head in sheep」「repeatedly bobbing one's head in an immature individual」easily overpowered and taken advantage of, or any of the other elemental combinations seem to reflect more than simply a 'farmer loosening soil and preparing to plant his seeds.' Needless to point out perhaps is that any prick penetration into soil would require subsequent cleansing prior to re-entry elsewhere, hence the「second bobbing of rod head with emissions」and not the initial point of entry…can't say how that applies to sheep, though.

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: plow
Japanese: kanji "plow" or "three-branch tree" radical
Unihan extended: handle of plow; plow
EDRDG: come; plough; 3-branch tree radical (no. 127)