Plants Farm

I will look at farming with a Sleet Wheat farm as an example.

It matures 18 cycles and falls off 2 more cycles if the duplicants do not have access to it. So it is not right to cut off access completely: first, we lose those two cycles, and second, during those two cycles it will continue to consume water and dirt.

It is even worse to limit by automatics the subsurface resources - in this case, the period of fallout will increase up to 4 cycles.

In this scheme, I block the passage of dupes for 18 cycles, and after giving them the opportunity to harvest.



Description


Assemble the circuit, load the dirt, and let the room cool down.

Place the seeds in the Conveyor loader located at the other end of the Conveyor rail. After the Auto-sweeper have planted the seeds, reset the right Signal counter by pressing the reset button in its menu. This should be done only once, at the moment of the first start. Further the scheme will work by itself.

In 10790sec (99*109), which equals 18 cycles, the bottom door will unlock and the dupes will harvest. The Auto-sweeper will re-seed, and the extra seeds will be removed (e.g., to the kitchen).

After 320sec (3*109), which is 1/2 cycle, the bottom door locks and the process repeats.

If at that point a dupes enters the room (e.g. wants to manually add dirt to the Hydroponic farm), he can leave the circuit through the upper door. It should only be allowed to go through the upper door to the right (the right arrow is active, the left arrow is not).


 * Timer: 109sec - red period, 1sec - green period.
 * Right counter: 3, advanced mode. The rest are by default.
 * Priority on Hydroponic farm: 6. The rest are by default.

Since you can't see the wires behind the counters, I'm giving a screenshot of the automatics also without them.

Cooling
The circuit is thermally insulated with mafic rock thermal insulation, as well as a two-drop liquid lock. It provides both separation of gases (so that warm gases do not enter the farm) and thermal insulation (so that heat does not pass through the door). Such a liquid lock is considered in this article.

Water of normal temperature (25ºC) is supplied to the Hydroponic farm. For cooling is responsible a circuit of pipes, with polluted water inside. Its temperature is 1ºC (can be lower). Cold water comes in through the upper pipe (since the heat in the game spreads a little better upwards than downwards).

If you have cold oxygen, the scheme will be simplified: a coil of gas pipes will be easier to lay.

I use a conveyor chute in the circuit, not a conveyor receiver (why, discussed here).

Conclusions
The farm produces 648 seeds per 1 sowing, which gives 14400 kcal/cycle as a frost bun, which is enough for 14 dupes, and can be easily expanded to the left, for any number of dupes.

The scheme can be assembled without automatics, using the principle of cooling and thermal insulation suggested in this article.

Why limit the access of dupes? Dirt is consumed gradually, and dupes will run to the farm, contributing it to the Tile. And all the time. They just can't add dirt to all the Tile at the same time. And as luck would have it, such tasks will receive dupes, from another part of the map. Thus there is a significant savings in time for the dupes, due to the exclusion of their running.

The scheme can be adapted to any other farm. Since I have a Puft Farm, at some point I will consider a Dusk Cap farm as well.

Blueprint
Sleet Wheat