Photo by Melody

Soil and Composting: Soil Solarization ?

Communities > Forums > Soil and Composting
bookmark
Forum: Soil and CompostingReplies: 4, Views: 330
Add to Bookmarks
-
AuthorContent
Pete2
Richmond Hill, GA
(Zone 8b)

June 29, 2001
5:16 AM

Post #7409

Hi Marsh! I was wondering.. do you ever solarize your soil? If you do, how long do you leave your plastic on? I've always left my plastic on for 6-8 weeks but I wonder if the 8 weeks is really necessary. Also, I just read an article that said in soil solarization the soil is heated to a 18 inch depth but I wonder if that's true. Is it? Thank you for sharing you knowledge with us. :)

Here's the article on soil solarization that mentions how deep the soil is actually heated.

http://www.gardenguides.com/TipsandTechniques/solarization.htm

Terri
marshseed
Santa Barbara, CA

June 29, 2001
7:12 AM

Post #88222

Terri,

I have solarized in the past but am currently in a climate with cool, often overcast days.

Your link generally has the right idea; even the heating to 10-12 inches is possible with the right soil, solar conditions, and installation. Eighteen inches is stretching. Unfortunately, 100F is not especially high nor very damaging to most soil life. Sustained temperatures over 125F will kill or weaken many weed seeds and some fungal diseases; temps of 140F will eliminate most of the other microbes of concern without killing all life.

I do urge a minimum of 6 weeks-- takes a while to kill the tougher things-- and longer if sunlight and weather conditions are less favorable.
Pete2
Richmond Hill, GA
(Zone 8b)

June 30, 2001
3:27 AM

Post #88511

Lately here in Georgia many folks have been having a terrible time with tomato blight. They've had their whole tomato crop wiped out. They probably introduced the disease into their garden by accident when they bought some infected plants from a nursery or garden center. I've always heard that once you get it, it will live in your soil for years and years and it's best to plant your crop in another location. I wonder if soil solarization would help. It might take several consecutive solarization treatments...tilling the soil in between each time to get down deeper into the soil. What do you think, Marsh?

Terri
marshseed
Santa Barbara, CA

July 17, 2001
11:21 PM

Post #95742

Hey, Terri, I somehow missed your question. In the olden days of the mold-board plow, the soil was inverted, thus burying the diseased plant materials and surface spores down a foot or so. I have tomato diseases in every part of my farm but not every crop is affected.

Solarization might work if you are careful about drainage and about not bringing contaminated soil and tools to the planting area. I suspect that the heavy and long rains in GA kicked off blights. Phytopthera (sp) and Fusarium diseases are specially severe when the root systems are starved for air.
Byron
Lyndeborough, NH

July 31, 2001
1:51 AM

Post #103187

Pete

There was an article a NCSU that said the soil temp has got to reach 125F for 6 weeks. I thought they said this only
reaches 1/2 to 1 in. Although most pathogens live only in this range.

They said not feasable in NC maybe in FLA.

Sometimes you can get by with deep plowing or the home gardener double digging. IE bury the top soil a shovelfull deep.

In the north a total waste of time. Not enough solar engery to get it done.

Byron


You cannot post until you register, login and subscribe.


Other Soil and Composting Threads you might be interested in:

SubjectThread StarterRepliesLast Post
Clay poppysue 16 Oct 21, 2013 3:56 PM
Free compost, myth or truth JaiMarye 14 Oct 27, 2010 6:58 AM
Who Bakes Dirt 76summerwind 29 Apr 4, 2008 6:22 PM
sterilizing options tiG 22 Mar 29, 2008 7:47 PM
Soil & Fertilizer: Compost Tea SoCal 119 Mar 5, 2008 11:18 PM


We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2014 Dave's Garden, an Internet Brands company. All Rights Reserved.
 

Hope for America