bulbs in lawns; weeds

Hamish Sloan hamish.sloan@virgin.net
Thu, 02 Sep 2004 03:03:10 PDT

"In Flanders fields, the poppies grow"

and those poppy seeds could have survived under ground for over 1000 years.

It has become fairly common over here for arable farmers to use ploughing 
contractors. A good way tolose a contract is to plough just that bit too 
deep and penetrate the pan of soil that has not been to the surface for 
years. I have seen an example where this happened and the farmer was irate. 
(There are special ploughs used from time to time to break the pan for 
drainage that do not bring the subsoil tothe surface.)

Temperature appears to be the factor. It's warmer nearer the surface.

Were the bottles set at various levels?


-----Original Message-----

Michigan State University has had a weed seed germination experiment
going on since 1879.  Bottles with a mix of weed seeds were buried
and are dug up on a regular basis to see which seeds will germinate.
The latest bottle produced only Moth Mullein, Verbascum blattaria,
from 120 year old seed.

http://newsbulletin.msu.edu/july27/beal.html  Five of the original 20
bottles remain buried, and the next one to be dug up and tested will
be in 2020.

		Diane Whitehead

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