to or in order to

Hi,
I'm new.
I have a doubt.
In the following sentence
"In the scenario depicted above the most efficient and affordable irrigation technique has to be chosen to optimize water consumption and to guarantee the necessary soil water stock for crop requirements."
should I say
in order to optimize ... and to guarantee ...
or
to optimize ... and to guarantee ...

Thank you in advance.

***Neither a teacher nor a native speaker.***

Hi and welcome to the forums!
You can use "in order to" for this sentence, however, it's just optional.
I learned that it's better to use "in order to" when you start a sentence or a specific part of a sentence.
In order to learn something we go to school.
We go to school (in order) to learn something.
I will help you in order to be your friend.
(You want to be his friend, so you will help him.)

Anyway, I hope some other members will respond as well. :-)

Cheers!

I would say:

In the scenario depicted above,
the most efficient and affordable irrigation technique
has to be chosen
in order to optimize water consumption
and
guarantee the necessary soil water stock for crop requirements."

or

In the scenario depicted above,
the most efficient and affordable irrigation technique
has to be chosen
so that
water consumption is optimized
and
necessary soil water stock for crop requirements is guaranteed.