that's ironic, i talked to my supplier about that just last week...he said no one really does it anymore...it was more popular years ago, like in the 80's i think he said...i've never seen it or even heard of anyone doing it in my area, but i'm only 27, didn't start lawn care until 2000 and irrigation until 2010

 

that's ironic, i talked to my supplier about that just last week...he said no one really does it anymore...it was more popular years ago, like in the 80's i think he said...i've never seen it or even heard of anyone doing it in my area, but i'm only 27, didn't start lawn care until 2000 and irrigation until 2010

Pretty standard in AG
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http://www.turffeeding.com/agriculture-fertigation.php

http://www.mjae.eg.net/pdf/2006/jan/5.pdf
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http://www.ezfloinjection.com/1-1.asp

 

Yes
It was for 18 raised gardens
Each garden had a separate valve
Installed a rpz 2 gallon tank
The hippie gardener used this nasty smelling fish oil byproduct that stunk!

It turned out better than all thought
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Ive done a few . Stopped selling them as the quality of the product kinda sucked. The nipples on the tank where plastic and had to be replaced every spring. Did about a dozen and none of them are in service anymore.

 

Installed a handful, service a handful more. Not a big fan of them. Only install on systems with very even coverage, otherwise fertilizer also gets spread unevenly. Use an RP, no PVB. Use an extra large valve box to surround it, so it can be taken out if need be. I went to one the other day where the unit was installed in a hole, then a box put around it. Box opening is too small to get the unit out.

 

I would not recommend them. Reasons being most systems I deal with do not distribute evenly and even if they did there would be the issue of the time it takes to empty the lines of non-fertilized water, how would you know when you were fertilizing or not. Also fert delivered in liquid form is less forgiving than granular.

 

Children playing in the sprinklers........
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All true, fertigation is complicated, but a great idea if done right. A backflow assembly is required in most areas, and it's an RPBA above ground unit. Organic fertilizers are available, as well. Check the client's wallet.

 

I would not recommend them. Reasons being most systems I deal with do not distribute evenly and even if they did there would be the issue of the time it takes to empty the lines of non-fertilized water, how would you know when you were fertilizing or not. Also fert delivered in liquid form is less forgiving than granular.

This is exactly what I was gonna say. so many systems that water extremely inefficiently would just spell disaster.

 

This is exactly what I was gonna say. so many systems that water extremely inefficiently would just spell disaster.

On the other hand, makes one more conscience of many aspects of the trade that are taken for granted or ignored.

Great thing about AG is that everything is huge in comparison to landscape irrigation. AG pumps, thousands of gallons per minute, thousands of heads, millions of dollars of equipment and product which requires that mistakes be few and far between.
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SDI would be the only time I would consider it, but outside of Ag, sports turf and perhaps some high value collections on a nutrient poor soil it is not worth the hassle or cost IMO.

 

there is one system in our area I know of. winterized it a few years ago for him(not sure why I don't any longer). seemed kinda cheaply made for the parts, but his lawn looks great and he uses it still himself. he also has a well designed system.

 

...it was more popular years ago, like in the 80's

Yup, the companies I worked for back then had us do those. Interestingly enough they were done with a DCV instead of a RPZ. :hammerhead: