Agrotain and seed placed fertilizer

[wd9]

Anyone use at least 65 pounds or more of actual N coated with Agrotain seed placed? Single shoot all the fert, N,P,K,S in one pass with the seed and a narrow opener. Heard some farmers have had great success, but also include soil type and moisture conditions if you could.

At 5 cents per pound of N, less disturbance, easier pulling, single shoot, it seems like a good approach. I use double shoot right now.

[lakenheath]

Have a neighbour that uses single shoot in a 2 inch band at 54 lbs of actual N. He has never had any issues. Mabye this new product with allow higher rates without worry? Don't know of anyone using it around here.

[lakenheath]

I also have a neighbor doing it with 50lbs absolutely loves it.

[cropduster]

CANOLA???????

[northfarmer]

have used with success up to 60 lbs acutal n with agrotain on cereals, excellent results, still band n on canola ground with extra pass

[lakenheath]

What does Agrotain cost per pound of actual N?

[lakenheath]

Never mind. I see Wd9 has it at 5 cents. Have to read closer.

[wd9]

Further on cost:

$0.046 per pound actual N for Cereals except hulless barley

$0.064 per pound actual N for Canola

broadcast 6, 8, 10 cents for 6, 9, 12 days control.

[lakenheath]

Thanks. A few more questions if you don't mind. Do most retailers offer this product? From what I understand, this product has to be custom applied at the fertilizer plant it is coming from. Or are farmers doing it on farm?

[wd9]

My local fert dealer does it. Urea first, applies inhibitor, adds the rest of the blend. He's a smallish dealer, but don't know the availability of service of other dealers.

[mhartman]

Here is an abstract that describes work on Agritain (NBPT). You should note that Agritain will increase the safe rates for seed row urea N with canola by about 20 lb N/acre in medium texture soil, tight seedbed utilization conditions. For systems with high seedbed utilization and normally good seedbed moisture / rain shortly after seeding, this may allow moderate levels of N to be seed placed. But I think that placing moderate to high levels of Agritain urea in the seedrow is still quite risky. You also have to account for other fertilizer products in the seedrow (P,K and sulphate S) that will contribute to seedling injury and reduce emergence. Canola seed is too expensive to burn off with excessive seed placed fertilizer so be cautious. Remember you want to establish at least 8 canola plants per square foot.

Karamanos R. E., Harapiak, J. T., Flore N. A. and Stonehouse, T. B. 2004. Use of N-(n-butyl)thiophosphoric triamide (NBPT)
to increase safety of seed-placed urea. Can. J. Plant Sci. 84: 105–116. Current guidelines for safe seedrow placement of urea N in the western Canadian prairies are based on texture, seedbed utilization and soil moisture conditions at the time of seeding.
However, if N requirement is high, not all fertilizer N requirements can be met as excess urea N in the seedrow may result in plant stand reduction, delay in maturity and/or lead to yield loss. This study investigated the use of the urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT) as a means of increasing the safety of seedrow applied urea. Four experiments consisting of 39 trials were carried out over 3 yr to ascertain whether current guidelines could be modified through the use of NBPT. The experiments
were carried out on loam to clay loam soils and barley, canola and wheat were sown with seedrow spacing and seed spread to produce seedbed utilization of approximately 10%. A safe N rate in this study was defined as the one that resulted in less than 15% reduction in the stand density of plants and no delay in maturity. There was no damage from seed-placement of N when the site
received 5 to 10 mm of precipitation within 48 h of seeding. Treatment of urea with NBPT resulted in a significant improvement in stand density in two out of every three (20 of the 31) trials, where a significant reduction of stand density due to N application was observed. There were no cases where an increase in seedling damage was observed as a result of NBPT treatment of urea.
Treatment of urea with NBPT resulted in an overall reduction in days to maturity with greater benefit at higher N rates of seed row placed N. However, there was a yield benefit as a result of NBPT application in only eight of the trials. Average guidelines for
urea seedrow placement for barley, canola and wheat grown on medium textured soils with 10% seedbed utilization can be increased by 30, 20 and 15 kg N ha–1, respectively, when urea is treated with NBPT.

[mhartman]

Ooops sorry about the spelling error it should be Agrotain not Agritain.

[kent]

Is their any benefit to using it in a double shoot sytem. I have Irrigation and have tried putting on 120 actual N and 35 P with the seed. It worked but I am afraid to go completely no till this way as I may get burnt some year. Have a Stealth opener on 9" paired row. Need more N in some fields and have fertigated but it is a pain, esp if the field doesn't need water.