Lemon on the boundary of farm - pits with JCB?


I want to plant Lemon on the boundary of my Mango farm??

Any suggestions/ advices  Please advice

How to best make the pits? (Pits to plant lemon saplings)

JCB or manual?

Please advice regarding watering Lemon sapling. Do we need to do everyday.

Is Drip is better or land irrigation?

Is it good idea to connect them to drip? Feasible option :—)) ?

Thanks in advance

    please go through below thread regarding pits .
Thanks & Regards,