drip irrigation basics
For the past couple of seasons I have been growing some fruit trees in containers (most in 15 gallon pots) and have been using drip irrigation to water them. I have been using a spike with an adjustable head that sprays a fine mist of water 360 degrees around the pot. I like the coverage they provide but they seem to clog up all the time and I have had many near disasters over the past two years and I am now wanting to switch over to the button type drippers. Will these give me good enough coverage? I always worry that they only drip water in one area and don't cover the entire rootball. If I do use these how many drippers will I need in each 15 gallon pot? How long should I program my system to run? I appreciate any info on this subject.