Re: Brocolie as a green manure crop control soil diseases
iris@hort.net
  • Subject: Re: Brocolie as a green manure crop control soil diseases
  • From: S*@aol.com
  • Date: Sat, 3 Nov 2012 09:45:56 -0400 (EDT)
Great idea. Currently I grow clover (a weed).  I can check its  roots.   
Though, I don't know if the same bacteria that fixates  Nitrogen grow on  both 
sweet peas and clover.  I am thinking about not  pulling the clover any 
more and letting it stay and fixate N.  My soil is  poor in organic matter and 
sandy.
 
 
In a message dated 11/3/2012 7:00:13 A.M. Mountain Daylight Time,  
irischapman@aim.com writes:

Sweet  pea falls into "Vetch group" containing  field pea, garden pea,  
broad-been and various vetches.  Without testing you can't tell  if  the 
right bacteria is there or not. chances are high that it is,  but 
perhaps not in high enough concentration. Concentration increase with  
succeeding years of growing one of that group.

You can test  yourself. Plant some sweet pea. Did up a plant after it 
has grown for  awhile. The presence or absence of nodules will be 
obvious, as well as  number of nodules. See following article for more  
information.

http://digital.library.unt.edu/ark:/67531/metadc3406/m1/9/

Chuck  Chapman

-----Original Message-----
From: SDAyres2  <SDAyres2@aol.com>
To: iris <iris@hort.net>
Sent: Sat, Nov  3, 2012 7:15 am
Subject: [iris] Brocolie as a green manure crop control  soil diseases

The extension agent  recommended to me to consider  the use of broccoli
grown up to just before  flowering and then  incorporating them into the 
soil.
Broccoli can help suppress   disease in soils when you want to renew an 
iris
bed. He said to do  a  Google search on Rotation with Broccoli for soil  
borne
Disease.   Has  anyone experience with broccoli to  eliminate soil 
diseases?

The broccoli discussion came about   because I was discussing using 
sweet
peas (dwarf) in between irises  to  fixate Nitrogen in to the soil.   He 
said
that  planting Sweet Peas  will not increase soil nitrogen if they do 
not  have
the right soil rhizobium  inoculant, nor if the soil already has  
sufficient
nitrogen.  Plus he  said you would have to work it  in before flowering.
Has anyone  grown sweet peas  in between the  irises in the spring and
winter?  Do they crowd the   irises?  I am doing an article on green 
manure for
the club  newsletter  and website.  Can anyone send me pictures of sweet  
peas
grown amongst the  irises?  I have known that the  inoculant you can buy
varies with cover  crop.  I would like to  buy some inoculant to help 
the sweet
peas fix  nitrogen in to the  soil but am not sure which one.   Any
recommendations?

Thanks
Scarlett

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