Register free!


Reply
 
Thread Tools   Display Modes
  #1  
Old 05-07-2009, 10:04 AM
DeepGreenLawn DeepGreenLawn is offline
LawnSite Silver Member
 
Join Date: Apr 2008
Location: Woodstock, GA
Posts: 2,372
N uptake

Another thread made me wander...

Knowing that microbes store N, what forms of N are they capable of storing? Does it have to be broken down N that comes from items such as grass clippings, or manure, OR can they also store already available N such as what is found in synthetic ferts? In Kirils chart I would assume my "already available N" would be the NH3-

On his chart the N is taken up or broken back down and released back into the atmosphere?

What technical form of N is found in synthetic ferts and Urea?
Reply With Quote
  #2  
Old 05-07-2009, 11:33 AM
Kiril Kiril is offline
LawnSite Fanatic
 
Join Date: Jun 2007
Location: District 9 CA
Posts: 18,318
Quote:
Originally Posted by DeepGreenLawn View Post
What technical form of N is found in synthetic ferts and Urea?
Both forms (ammonium & nitrate).
Reply With Quote
  #3  
Old 05-07-2009, 11:35 AM
Kiril Kiril is offline
LawnSite Fanatic
 
Join Date: Jun 2007
Location: District 9 CA
Posts: 18,318
and a little something on urea for you to read.

http://www.soils.wisc.edu/extension/...management.pdf
Reply With Quote
  #4  
Old 05-07-2009, 05:11 PM
JDUtah's Avatar
JDUtah JDUtah is offline
LawnSite Silver Member
 
Join Date: Nov 2007
Location: UT
Posts: 2,671
Also know that the simple N like Ammonium and Nitrate inside microbes is used to build complex molecules AKA proteins... like those found in DNA... This means that it is not necessarily stored in plant available form once it has entered the biomass. When the microbe dies it needs to be broken down to be plant available...
Reply With Quote
  #5  
Old 05-07-2009, 05:34 PM
ICT Bill ICT Bill is offline
LawnSite Platinum Member
 
Join Date: Nov 2007
Location: Howard County MD
Posts: 4,120
Quote:
Originally Posted by JDUtah View Post
Also know that the simple N like Ammonium and Nitrate inside microbes is used to build complex molecules AKA proteins... like those found in DNA... This means that it is not necessarily stored in plant available form once it has entered the biomass. When the microbe dies it needs to be broken down to be plant available...
Or when the microbe is eaten by something else, for instance protozoa eat bacteria, certain nematodes like to eat bacteria, just like with worms the poop is great fertilizer in a plant available form

Its little tiny poop but the numbers can be pretty staggering, On some testing we had done last year there were over 12,000 of ONE TYPE per ml of soil
Reply With Quote
  #6  
Old 05-07-2009, 10:48 PM
RLawns RLawns is offline
LawnSite Member
 
Join Date: Feb 2009
Location: Central NY
Posts: 42
where is the chart of kirils?

Thanks
__________________
2004 F250 turbo diesel 4x4/2004 F250 (gas)
2-6 'by 16' landscape trailer
72" Dixie Chopper
2-48" husqvarna walkbeind with sulky
36" toro walkbehind
4 T242-210 shindaiwa trimmers
2 husqvarna back back blowers
2 22" husqvarna mowers
husqvarna chainsaw
743b bobcat skid steer
2-Ryan Aerators
2- Bluebird de-thatchers
2-HS75 stihl hedgo trimmer
1 husqvarna hedge trimmer
300 gallon turbo turf hydroseeder
50 gallon turbo turf hydroseeder

Fully Insured/Registered/Pay Taxes
Reply With Quote
  #7  
Old 05-07-2009, 11:39 PM
DeepGreenLawn DeepGreenLawn is offline
LawnSite Silver Member
 
Join Date: Apr 2008
Location: Woodstock, GA
Posts: 2,372
double post, the next one is better...
Reply With Quote
  #8  
Old 05-07-2009, 11:41 PM
DeepGreenLawn DeepGreenLawn is offline
LawnSite Silver Member
 
Join Date: Apr 2008
Location: Woodstock, GA
Posts: 2,372
I kind of answered my own question, just had to jog my memory...

Revisited a few lawns and spoke with a few of my now organic customers and they all were experiencing great greening. I showed up to one of my existing organic customers that I picked up earlier this year and called to be sure he didn't apply any additional fertilizer to his lawn to cause such great greening.

We have been getting a lot of rain lately and these lawns have been using their stored N to green up and grow. I learned a big lesson and my faith in organics went through the roof as well as my understanding of the MAJOR importance of proper watering. I guess sometimes seeing is believing AND understanding.

SO, with that said, it was obvious also that the synthetic N is able to be stored in the soil for use later on. As I haven't put down any high doses of N on these yards, one I haven't touched due to her coming on so late, and they look just as good as the other synthetic lawns next door.
Reply With Quote
  #9  
Old 05-08-2009, 01:44 AM
JDUtah's Avatar
JDUtah JDUtah is offline
LawnSite Silver Member
 
Join Date: Nov 2007
Location: UT
Posts: 2,671
Here is a very simplified outline for you...

http://users.rcn.com/jkimball.ma.ult...ogenCycle.html

Partially related question... did the rainstorms have a lot of lightning? (could or could not be significant to the turf green up)
Reply With Quote
  #10  
Old 05-08-2009, 07:45 AM
treegal1's Avatar
treegal1 treegal1 is offline
LawnSite Platinum Member
 
Join Date: Jan 2008
Location: drifting.......
Posts: 4,021
so we are back to air, water and the HERD again.......................

thanks for the link Kiril, I am away from my "home" pc and needed something like that.....sorry I cant help with the ric/rod beatings now.....
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 07:13 PM.

Page generated in 0.09352 seconds with 10 queries