This mod add a block looks like dirt and dispenser.
The block has GUI and 9 slots for sapling.

It plants sapling when neighbor block updates and the GUI is closed. (It doesn't place block if there is a non-replaceable block above the dirt.)
When you broke a log above the dirt, it will place sapling soon.

You can change the mode(triggered or non triggered) by using hoe to this block. On triggered block, you can plant seeds(wheat seed, carrot, potato, and so on).
Then fully automated field is available with this auto planter, dispenser with water bucket and timer circuit.
