Aqua-Till

[Fred]

Novel

 

[franklin]

Just need to be able to mix the seed into the fert mix so it comes out regularly.

 

[York]

with fertiliser:
been there, done it, got the T-shirt. ;-)
JD sold a similar concept out of Canada in the late 90's for golf course fertilising.
did work on it with the than developer. for a 18m unit, doing +12km/h we would have needed 300hp on the pump to get 300bar. For me it stopped right then.
10years ago there was federal funding going into R&D in ex FAL at Braunschweig. Boy was it going until.......
...they changed the liquid from water to fertiliser.
Now, every one with some background in Physics & Chemistry just has to look what happens when you set a fertiliser solution, especially with some S in it, under pressure, which you need to make it run......
Some day it will work but not as long as we need to change basic rules of Chemestry & Physics.
York-Th.

 

[zegoblin]

The demand for 300HP stopped you right then!
Why? The price of a 300HP stationary diesel engine is like £10,000.
Maybe £10,000 was a lot for a golf course but that's not very much at all when compared to the cost of modern seeding equipment.

What precisely is the 'physics and chemistry' problem - volatilisation, precipitation, ...
The Aqua-Till team has run liquid fertiliser through that pump already, including aqueous Urea Ammonium Nitrate for a couple of seasons without any drama with physics or chemistry.
In some existing non-agriculture water-jet applications, anhydrous ammonia is prescribed instead of water as the cutting media - so we know that works too. It also happens that anhydrous ammonia is the most used fertiliser in the world.