A Mexican Farm Helper taught me this back in the 80s, may never need to use it

[theking]

..in the future but good knowledge non the less..

It's low tech but still efficient enough to get the job done like the sample photos below  :

[Visualmon]

What is the benefits from those things? 

[theking]

More cost effective compared to some other methods of irrigation..

In the early years, farmers would use a shovel to cut slots into the sides of their earthen irrigation ditches to allow water to flow into their crop rows, and then close up the hole again to stop the water flow. This method of irrigation was labor-intensive and could result in uneven watering across a field as the soil eroded around these slots.

The introduction of siphon tubes to irrigation was a great improvement. Siphon tubes delivered a more consistent volume of water to the crop rows and could be easily shut off by pulling out the siphon tube.

[theking]

Current cost rate from this company:

[theking]

And if one wants to save even more by going the DIY route, just get some aluminum tubes, cut it and bend it... :

[VillainousHero]

But I'm just a simple gardener.  I usually cheat and buy the sprouts and just transplant them into the ground. 

About the only thing I can grow super easy is lettuce.    maybe mustard greens too.

[theking]

Do what ever works for you.