Maybe that's what you need alex - the drip regulator piece of the IV unit. The drip regulator will control the amount of fluid that leaves the IV bag. That picture just might work for your plants! nwlivewire
here's another take on drip irrigation by steve solomon. Drill one 6 mm (¼ inch) hole in the side of a plastic bucket just a squidge above the bottom. I prefer using big white 20 litre (5 gallon) ones because around mid-summer the larger plants in my garden can use that much at one go. But even household pails of 2.5 gallons (10 litres) will serve in a pinch. Set that bucket on the soil next to a large plant or what will soon be one, like a tomato, cucumber, zucchini, etc. Position the drain hole so it is close to the plant’s stem. Tilt the bucket slightly away from the hole and pour in the amount of fish/kelp concentrate or manure/compost extract to make a full strength solution in the amount of water going into the bucket. Then with hose and nozzle, fill the bucket as fast as possible. (You could also premix the fertilizer in one bucket (without a hole in it) and then pour the solution into the fertigation bucket.) It’ll take a few minutes for the bucket to empty because the drain hole was intentionally made small, so that the outflow can sink in without spreading out. (If your soil is slow to accept moisture, then drill a 3/16th inch (4 mm)-diameter drain hole. If your soil is sand, water tends to go straight down without spreading out much. In this case, better results might happen by drilling two holes , 180 degrees apart.) article continued at Liquid Fertilizers and Aerated Compost Tea |
Here's a good irrigation guide that I've used before. It covers some of the topics suggested here and thought it might be of benefit to you.