Urea Application /w Late Herbicide in HRS Wheat

[bgmb]

I dont see how you can put a significant amount of nutrient on with fungicide or herbicide without leaf burn.

[Hopperbin]

Reduced herbicide damage on crop and better weed control does not sound fitting. Would think one does not go in hand with the other. A lot of chemicals are not registered with fert application. Which chemicals did you have in mind with your fertillizer klause?

[Klause]

We are talking 6 to 10 lbs an ac. Not a significant amount. Keep in mind chemistries play a big roll... Some chems, Bassa gran comes to mind, use 2800 as a safener and surfactant.

[bgmb]

to me you want to provide nutrients to plants through roots its the way they have evolved for billions of years.

[Hopperbin]

I see use of fertilizer mixes is not recommended for mixes with most crops under western canadian environmental conditions with basagran. Says so in 2014 guide to crop protection. Says amonium sulphate may improve weed controle in dry beans but may damage crop also under humid conditions. And never the forte with the built in adjuvant. You were refering to wheat. So its not on label.

[Hopperbin]

Isnt after seed timing of n be supposed to be put on in a dribble band?

[bgmb]

Thats what i thought too hopper, I think they r talking about foliar applications of small diluted amounts. Might be worth a try but i have my doubts. Nitrogen is always readily available in the soil so better to have plants get it through their roots.

[Klause]

Hopper we put s on with Bassa gran/viper.


"Humid" and "western canada" aren't the same... it gets real hot in Manitoba where you spray in 30 degree heat and humidity up to 90%...


I'm not sure if the guide lists it but when you purchase it you get 2800 in jugs with it

I e with Viper you need 2 jugs of 28 for 1 jug of basagran.


All about the chemistries.


N isn't as available as one thinks... it leaches out of the root zone. It is lost to the atmosphere in hot wet conditions.



Generally top dressing is done with streamers yes.



I'll tell ya one thing... we have a couple of guys that tried top dressing this year. They have all told us / booked their whole farm for next year.

[furrowtickler]

3 gal of Slow release liquid foliar (6 lt at herb and 6 lt at fungicide) gave the same results as 10 gal 28-0-0 dribble band in a separate pass. Timming is right at applying N and other nutrients at 3-5 leaf (herbicide time) and late boot /early heading (fungicide) in wheat - no extra pass and zero leaf burn with extremely low salt 28-0-0 Kugler XRN. Anyone at our tour seen the weed control aspect in canola plain as day in the plots (Ado was there - saskcanfarmer says he was)

[Hopperbin]

http://www.nutri-tech.com.au/blog/2010/03/top-10-most-frequently-asked-foliar-fertilising-questions/


Interesting.

[Klause]

Furrow will you have trials again this yr? Would love to come see em if you do.



I was scrolling through wheat pics from this year's crop... I'm really thinking the top dressing after thr big rain event helped us with fuzz... I mean all cereals yellowed and looked sick... took weeks to get back to normal. We top dressed with 28 and within 10 days the crop looked dark and healthy again.

[furrowtickler]

Yup we will do a series of different rates again with herbicide as well as a fungicide trial with different fungicides at heading like we did this year.
The best net returns this past year were from the two shot foliar with mid fertility at seeding. In general the 2 shots of foliar gave the same results as 30-35lbs N either top dressed or seed placed. So if your target is 100 lbs N total start at 60n at or before seeding then go in with the two shots foliar - herbicide and then fungicide(we used 70% rate fungicide with excellent results).
If your crop does not need fungicide (lack of rain, hail) or if tissue tests are sufficient at boot/budding, you may not need the second shot, or less of it - 2 lt instead of 6 lt.
Our plots and customers with high fertility at seeding (100-120 lbs N) and then added either foliar, top dressed 28-0-0 or dry seen very little response from any extra fertility of any form in this area this past year.
Most likely a function of disease levels in dense crops capping off full yield potential, as Ado has mentioned and many others have seen this year.

[ado089]

Not to be a party pooper but from what I've seen a lb is a lb but different. Soil applied N went more to straw this year so the foliar N stood better and had less disease. That said when back casting with the WAG model the yield matched up exactly to the actual #'s of N in the Kugler on the three fields I sampled...still haven't pulled my own data. I was aiming for 110# and did 90 plus Kugler but it might have been too much N to start. You NEED to start with a good soil test and a good agronomist to interpret it and go from there. My recommendations this year will be optimum N less 10-15 bpa, that N number will be the soil applied N. For those of you doing your own math the last few bushels of a reasonable yield goal will be about 1.25#/ac of N/bu for wheat and 1.5-1.75 for Canola.