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  #11  
Old 06-07-2014, 11:48 PM
Fubba Fubba is offline
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Is the AMS absorbed solely through the foliage, systemically, or both?
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  #12  
Old 06-08-2014, 03:00 AM
greendoctor greendoctor is online now
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Quote:
Originally Posted by Fubba View Post
I put 1 lb per k on Bermuda. Had a little yellowing but not bad. Applied 0.5 lb per K on centipede and st. ausgustine with some pretty bad burn on yards with lots of sun. Would spraying at a higher volume followed by immediate irrigation alleviate the yellowing?
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Centipede and St Augustine is very sensitive to concentrated fertilizer solutions. On those grasses, here is what I want. Irrigation right before application. Application of 1/2 lb N to be done in 2+ gallons unless watering in is done immediately.
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  #13  
Old 06-08-2014, 08:25 AM
Fubba Fubba is offline
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Originally Posted by greendoctor View Post
Centipede and St Augustine is very sensitive to concentrated fertilizer solutions. On those grasses, here is what I want. Irrigation right before application. Application of 1/2 lb N to be done in 2+ gallons unless watering in is done immediately.
How do you handle lawns without irrigation?
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  #14  
Old 06-08-2014, 10:24 AM
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RigglePLC RigglePLC is online now
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liquid limits

Retired now. I was using a sprayer with a 6 gpm pump--Hypro GR232 or maybe 252. I used mostly urea which is a bit safer than Ammonium sulfate, I think.
I used 3/4 pound nitrogen per thousand, above 80 degrees I used a half pound. Above 85 a quarter pound--plus about one-quarter as much potash. Applied about 2.6 gals per thousand sqft.
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  #15  
Old 06-08-2014, 10:53 AM
greendoctor greendoctor is online now
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How do you handle lawns without irrigation?
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Fertilizer rate goes down, water volume goes way up. As in no more than 5 lbs of dissolved material per 10 gallons.
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  #16  
Old 06-08-2014, 10:57 AM
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FdLLawnMan FdLLawnMan is offline
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The plant can only uptake .1 lbs of nitrogen through the foliar process. Everything elapse is taken up via the roots. If I am wrong on this someone please correct me. AMS had a higher salt content per nutrient value vs urea. I use AMS as an addendum with my UFLEXX and UMAXX because I have soils that are on the high end of the ph scale. I do not use it in the summer when it is hot. I then use a combination of Urea Triazone and my U fertilizers. If you don't have irrigation you need to dilute the fertilizer and apply less.
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  #17  
Old 06-09-2014, 09:03 AM
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lilmarvin4064 lilmarvin4064 is offline
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Originally Posted by FdLLawnMan View Post
The plant can only uptake .1 lbs of nitrogen through the foliar process. Everything elapse is taken up via the roots. If I am wrong on this someone please correct me. AMS had a higher salt content per nutrient value vs urea. I use AMS as an addendum with my UFLEXX and UMAXX because I have soils that are on the high end of the ph scale. I do not use it in the summer when it is hot. I then use a combination of Urea Triazone and my U fertilizers. If you don't have irrigation you need to dilute the fertilizer and apply less.
I assume you mean "salt index" or "osmolality index" and not "salt content" as it's unlikely AMS or other N sources would contain any negligible amounts of sodium chloride or other chlorides.
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  #18  
Old 06-09-2014, 08:08 PM
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FdLLawnMan FdLLawnMan is offline
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Quote:
Originally Posted by lilmarvin4064 View Post
I assume you mean "salt index" or "osmolality index" and not "salt content" as it's unlikely AMS or other N sources would contain any negligible amounts of sodium chloride or other chlorides.
You are correct, wrong wording on my part.
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