brentm
07-20-2008, 11:13 PM
I am starting a nursery in Salem, Oregon and I would like to create an irrigation master plan to ensure that the pump, pipe, etc. that I install off the bat are sufficient for when my business expands. I have a feeling that because I have so many questions, I'll have to hire someone to make a master plan, please let me know if you are experienced and would like to take on this job or if my requests/questions are reasonable, please give me feedback on my ideas/questions below.
The nursery is 20 acres total and these are some of my initial thoughts which I'd like to get feedback on:
a. 15 acres of dwarf conifers and Japanese maples planted 5'x5'. I was thinking of using drip tape, maybe Netafim 1GPH or 2GPH Triton Heavywall Dripperline with 60" spacing, roughly 320' runs on flat terrain. I want each tree to be able to get equivalent to .3" of water daily so 1.5" every 5th day. If their root balls are 3' in Diameter, thats equivalent to 1.32gallons daily, which is 1hr @30PSI for the 1GPH heavywall triton drip.
b. 5 acres of container production which includes twelve 36'wide by 300' long areas - all irrigated daily with .5"
1 or 2 of the areas (36'x300') with #1 cont. I was thinking the only/best way to irrigate these would be with overhead irrigation. I experimented with various sprinkler head layouts with triangular and square spacing using 12' or 18' diameter heads. The problem is that I haven't been able to select a product on the market that will irrigate that long and narrow area the way I'd like: I would like to irrigate daily with .5" applied in less than an hour if possible. The MaxiJet Max 14 Fill-Ins 360* x 14 Filled-In Streams in White (.07" orifice size) have a 37.1GPH with 22.5' Diameter, but each head would give me .137"/hr and the avg overlap in my designs is 2.5x so that's .34"/hr. Please see the attached image which shows various layouts I was considering...I am very inexperienced with design, so I would appreciate your criticism and assistance with product selection.
1 or 2 of the areas (36'x300') with #2 and #3 cont. I was thinking of doing these areas with either overhead irrigation or possibly heavywall drip tape laying on top of the pots which would be equally spaced. This size container would need equiv to .5" per day on drip.
6 to 10 areas with #5 up to #25 containers. The large conts (#5-25) will definitely be on drip, I was thinking Netafim spray stakes they would need .5" per day on drip.
I have attached a base map with the narrow container areas, road ways and field areas marked out...it's a work in progress.
The water is coming from an 8" well 225' deep with an existing 3HP submersible. I am going to upgrade to a 7.5 or 10 HP 6" submersible mounted 125' deep. I like some of the models made by Goulds. Their 7.5HP submersible would supply me with 150gpm@50PSI. If my irrigation plan shows that I need more water than that, I can always get a 10hp model. I also need to specify pipe and pipe layout, a filter, a controller, etc. It seems endless!!!!!
Thank you so much for your expertise!
-Brent
The nursery is 20 acres total and these are some of my initial thoughts which I'd like to get feedback on:
a. 15 acres of dwarf conifers and Japanese maples planted 5'x5'. I was thinking of using drip tape, maybe Netafim 1GPH or 2GPH Triton Heavywall Dripperline with 60" spacing, roughly 320' runs on flat terrain. I want each tree to be able to get equivalent to .3" of water daily so 1.5" every 5th day. If their root balls are 3' in Diameter, thats equivalent to 1.32gallons daily, which is 1hr @30PSI for the 1GPH heavywall triton drip.
b. 5 acres of container production which includes twelve 36'wide by 300' long areas - all irrigated daily with .5"
1 or 2 of the areas (36'x300') with #1 cont. I was thinking the only/best way to irrigate these would be with overhead irrigation. I experimented with various sprinkler head layouts with triangular and square spacing using 12' or 18' diameter heads. The problem is that I haven't been able to select a product on the market that will irrigate that long and narrow area the way I'd like: I would like to irrigate daily with .5" applied in less than an hour if possible. The MaxiJet Max 14 Fill-Ins 360* x 14 Filled-In Streams in White (.07" orifice size) have a 37.1GPH with 22.5' Diameter, but each head would give me .137"/hr and the avg overlap in my designs is 2.5x so that's .34"/hr. Please see the attached image which shows various layouts I was considering...I am very inexperienced with design, so I would appreciate your criticism and assistance with product selection.
1 or 2 of the areas (36'x300') with #2 and #3 cont. I was thinking of doing these areas with either overhead irrigation or possibly heavywall drip tape laying on top of the pots which would be equally spaced. This size container would need equiv to .5" per day on drip.
6 to 10 areas with #5 up to #25 containers. The large conts (#5-25) will definitely be on drip, I was thinking Netafim spray stakes they would need .5" per day on drip.
I have attached a base map with the narrow container areas, road ways and field areas marked out...it's a work in progress.
The water is coming from an 8" well 225' deep with an existing 3HP submersible. I am going to upgrade to a 7.5 or 10 HP 6" submersible mounted 125' deep. I like some of the models made by Goulds. Their 7.5HP submersible would supply me with 150gpm@50PSI. If my irrigation plan shows that I need more water than that, I can always get a 10hp model. I also need to specify pipe and pipe layout, a filter, a controller, etc. It seems endless!!!!!
Thank you so much for your expertise!
-Brent