Difference between human and plant reproduction?

there, here a four valid reasons to do with your question!

1) Plants use and need pollinators in order to reproduce whereas humans only need each other and do this process whenever they please.

2) Some plants can self fertilise, humans cannot.

3) Plants drop seeds which need to be planted into the ground in order to develop and grow in a plant.

4) Plants produce more off-spring at once whereas humans usually only produce 1 at a time.