Mixing urea with water and spraying on combinable crop's/grass

[Massey 6470]

A neighbour phoned and asked me about this as the nitrogen up take is supposed to be more instant and you don’t need to use as much fertiliser what do people know about this - I’d be concerned that it would block up the sprayer

 

[Shutesy]

There's quite a lot of threads on here about making liquid fert by adding urea to water. It's not as simple as it sounds, it takes a lot of mixing I believe hence why folks make there own home mixing setups. You probably wouldn't want to spray it on with normal spray nozzles either you would need fert nozzles or dribble bars .

 

[Headless chicken]

It’s the addition of humic acid that makes a big contribution to the saving in n but yes 40-50% reduction is achievable

 

[Brisel]

The melting urea in water is the main hassle. It is also liable to scorch unless applied using fertiliser stream nozzles/bars. Max strength is 20% N as that’s as much urea as you can get to dissolve in water.

 

[Laggard]

@Barleymow

 

[eagleye]

Did it last year when dry spring, ordinary nozzles, only about 17kgN in 200litres per ha plus litre molasses. 600kg urea in 3000litres, it takes in heat to dissolve so can freeze!

 

[ajd132]

I have an agroco mixing tank for sale

 

[Barleymow]

We dilute 60o kg of urea in a 1500l orange juice tank 1/4 fill with water drop in small submersible pump ,slowly add urea and water till full .run pump for 24 ish hrs till mixed .ice on outside of tank goes when mixed apply to headlands on damp April day with bubble jets

 

[Headless chicken]

I have an agroco mixing tank for sale

Pictures and price please

 

[Farmer Roy]

A quick bush method of getting your beers cold without a fridge is to mix urea & water in a bucket & sitting your beers in it.

 

[D14]

A neighbour phoned and asked me about this as the nitrogen up take is supposed to be more instant and you don’t need to use as much fertiliser what do people know about this - I’d be concerned that it would block up the sprayer

If you spray it on through normal water nozzles you will kill the crop. You must use liquid fert dribble bars or nozzles.

 

[Rooney]

Scorch will occur, if sprayed in unsuitable weather conditions or too much N at once. Have done it with ordinary guardian airs at less than 20kgN , 200litres water plus 1 litre urea. No scorch and crop went on to yield normally. (Melted urea) no idea about UAN

 

[Fish]

Scorch will occur, if sprayed in unsuitable weather conditions or too much N at once. Have done it with ordinary guardian airs at less than 20kgN , 200litres water plus 1 litre urea. No scorch and crop went on to yield normally. (Melted urea) no idea about UAN

Err, I’m not sure what you are telling us !
if you are mixing one ltr/kg in 200 ltrs water, no wonder there’s no scorch, because there’s almost zero n in that mix.

 

[Rooney]

Should have been litre molasses not urea

 

[Rooney]

37.5kg urea/ha, 17.25N/ha and yes very low rates. It was only to keep crops ticking over last cold dry spring

 

[chaos]

Isn't there a New Zealand company pushing this concept called .Tow and fert.

 

[BenAdamsAgri]

How much water & time does it take to melt a 600kg bag of 46% urea?

One bag per 4000l tank @150l/ha is 10.35kg N/ha

Could help with spreading N across the season if you can mix with other stuff

 

[robin banks]

I use an ibc tank 1000l. Our bags of urea are 375kg. Which works out pretty close to max strength you can get urea. I have top of tank cut off drop the whole bag of urea in. Then top up with water an add submersible pump.

 

[neilo]

I use an ibc tank 1000l. Our bags of urea are 375kg. Which works out pretty close to max strength you can get urea. I have top of tank cut off drop the whole bag of urea in. Then top up with water an add submersible pump.

Does 375kg of urea dissolve into the water that would surround it in an IBC (7-800L?)?

 

[Farmer Roy]

https://www.incitecpivotfertilisers...s/Use Directions/Use Directions L1 EASY N.pdf