Re: Root diagrams
Nan and Margaret,
While hunting down some information in Robert Kourik's 'designing and
maintaining YOUR EDIBLE LANDSCAPE NATURALLY' I noticed some root depth maps.
They are used in several chapters including double digging and interplanting
crops. He references two books by John Weaver- 'Root Development of Field
Crops' and 'Root Development of Vegetable Crops'. Both New York McGraw-Hill
published in 1926 and 1927. "...His books and articles are the largest single
source of root zone maps in the world." Might be worth a search.
Nan Sterman wrote:
> >>
> >I used to have an illustration of root depths of various plants that showed
> >tomato roots will extend over 20 feet into the soil if not impeded by
> >hardpan, etc. Can't find it now to give you the source, unfortunately.
> >But the depth of tomato roots is one reason we water infrequently and
> >deeply in our area (sw Idaho). Margaret L
>
> Margaret, would you mind looking for the source of these images? I've been
> looking for something like that.
>
> Nan
> **********
> '''''''''''''''''''''''
> Nan Sterman
> San Diego County California
> Sunset zone 24, USDA hardiness zone 10b or 11
>
> ---------------------------------------------------------------------
> To sign-off this list, send email to majordomo@mallorn.com with the
> message text UNSUBSCRIBE PERENNIALS
---------------------------------------------------------------------
To sign-off this list, send email to majordomo@mallorn.com with the
message text UNSUBSCRIBE PERENNIALS
