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Posted: Wed Aug 26, 2009 10:14 pm Post subject: Field Irrigation
Hopefully someone may have an answer to another problem that has been annoying me for ages with the drip irrigation system for my olive trees.
The reservoir has algae forming in it and this is finding its way into the pipes and drip valves and blocking them. It takes ages to keep going round the fields unblocking them (and proving to be a bit of a chore in this heat).
Is there anything I can use, similar to a pond additive or a safe chemical, to reduce the algae without killing the frogs, gold fish and other wild life.
Given the volume of water involved and the fact that it is topped up and used on a monthly basis I would prefer an inexpensive solution.
Joined: Dec 11, 2007 Posts: 160 Location: Albox / Taberno
Posted: Thu Aug 27, 2009 8:38 am Post subject:
I've never seen a Spanish Farmer water his Almond or Olive trees in the last 10 years and we have 1,000's around our house - they do water them once a week for the 1st month after planting new trees - after that they survive on natures water - that is why they grow so well in a dry climate - they do not need a lot of water.
Last edited by TheSheriff on Thu Aug 27, 2009 3:44 pm, edited 1 time in total
If you do not water your olive trees properly, you won't get any olives at all, that's why they do irrigate them.
About the algae, one solution is covering the reservoir with a black cover to stop the sunshine. It may be a bit expensive, but on a long-term basis it may be cheaper than chemicals.
We have a similar problem and our pop ups are constantly blocked with cal from the irrigation water reservoir and the only solution is to constantly (weekly unfortunately) clean them out by washing them using a bucket with a little detergent and a brush .
As for watering almond and olive trees. Ours only get indirect watering from our irrigation system but they are well established and very ancient trees. My Spanish friends have much younger trees and water theirs 3 times a week with a drip feed system.
Thank you everyone for your replies to my question.
It seems that I will just have to accept the fact that the valves will need regular attention. On the bright side, I suppose all that bending will be good for my waist line.
Re need to water, I am only a "townie" who years ago gave up on an allotment as being too much work.
I can only go by what the spanish ex owner of my property (who installed the system) told me. Indeed, all my spanish neighbours water their olive trees and last year told me off because I wasn't watering mine. I must say that my trees look much healthier this year with the watering.
All the commercial olive growers in this locality (Tabernas) have irrigation systems installed in their fields. Who am I to argue?
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