Square Foot Gardening Forum
[table bgcolor=#000000 height=275][tr][td]

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.


[/td][/tr][/table]
Search
 
 

Display results as :
 

 


Rechercher Advanced Search

Latest topics
» How's the Weather Where You're At?
by mlpii66 Yesterday at 10:40 pm

» Zucchini Tower
by RC3291 Yesterday at 8:40 pm

» Healthy Meals
by RoOsTeR Yesterday at 7:52 pm

» TrolleyDriver's Compost Thermometer
by trolleydriver Yesterday at 7:40 pm

» Compost ? -- Voorhees, NJ - Philly, PA
by sfg4uKim Yesterday at 7:17 pm

» Third Year SFG in Canada
by sanderson Yesterday at 4:45 pm

» homemade vermicomposting/Worm Casting Compost Sifters
by mlpii66 Yesterday at 4:15 pm

» New Green House
by RoOsTeR Yesterday at 4:13 pm

» has55's R & D Journey;State of New Mexico research results. Understanding the delivery system of plant nutrients thru the fungal and bacteria ratio
by has55 Yesterday at 1:28 pm

» Other Gardening Books!
by CapeCoddess Yesterday at 12:44 pm

» CANADIAN REGION: What are you doing in April 2017?
by Mimi2 Yesterday at 12:15 pm

» Jaffa's garden - year one
by Mimi2 Yesterday at 11:45 am

» Northern California & Coastal Valleys - What are you doing this month?
by countrynaturals Yesterday at 10:41 am

» Ants.
by sanderson Yesterday at 3:17 am

» Amaranth
by countrynaturals Yesterday at 12:04 am

» Feedback for my 2017 garden plan
by mlpii66 4/29/2017, 11:55 pm

» My first SFGs in 11 years
by phoeg 4/29/2017, 10:50 pm

» N & C Midwest: April 2017!
by CitizenKate 4/29/2017, 9:50 pm

» Kombucha
by RoOsTeR 4/29/2017, 8:53 pm

» Hello from SE Michigan
by Cindy G 4/29/2017, 8:14 pm

» Ideas needed
by mlpii66 4/29/2017, 7:48 pm

» New England April 2017
by Scorpio Rising 4/29/2017, 7:03 pm

» Garlic Growing Lovers
by Scorpio Rising 4/29/2017, 7:00 pm

» What are you eating from your garden today?
by newbeone 4/29/2017, 2:15 pm

» Mustard Greens
by sanderson 4/29/2017, 2:06 pm

» Gardening in Central Pennsylvania, 3rd year SFG
by sanderson 4/29/2017, 1:58 pm

» Double summer squash flower
by Scorpio Rising 4/29/2017, 12:20 pm

» Garden Progress in Georgia
by yolos 4/29/2017, 12:10 pm

» who has chickens
by trolleydriver 4/29/2017, 11:09 am

» Hello from Chino, CA (Zone 10a)
by BeetlesPerSqFt 4/29/2017, 8:31 am

Google

Search SFG Forum

how many bags of compost

View previous topic View next topic Go down

how many bags of compost

Post  walshevak on 1/3/2011, 12:18 am

how many 40 lb bags of compost do I need for 20 cu ft of mixed compost?

Kay
avatar
walshevak

Certified SFG Instructor

Female Posts : 4339
Join date : 2010-10-17
Age : 74
Location : wilmington, nc zone 8

View user profile

Back to top Go down

Re: how many bags of compost

Post  Furbalsmom on 1/3/2011, 12:37 am

Kay, does the bag give you any dry measurements, such as cubic feet, liters etc?

If not, Mel's Book suggests that you estimate the volume by comparing the 40 lb bag to a similar size bag that does indicate volume. You can also meaure the bag and then trying to calculate cubic feet.
There are 1728 cubic inches in one cubic foot

example: 12 X 24 X 6 inch bag would be one cubic foot.


Last edited by Furbalsmom on 1/3/2011, 1:03 am; edited 1 time in total (Reason for editing : compare bag sizes)
avatar
Furbalsmom

Female Posts : 3141
Join date : 2010-06-10
Age : 70
Location : Coastal Oregon, Zone 9a, Heat Zone 2 :(

View user profile

Back to top Go down

Re: how many bags of compost

Post  boffer on 1/3/2011, 12:45 am

Hi,

Have you heard of TMI? TMI=Too Much Information.

Your question is NEI. Not Enough Information. Alright, I just made up NEI!

Weight of a product is no indication of it's volume. I realize some compost is sold by weight, but it's really an irrelevant number when it comes to making MM. MM is measured by volume.

To help get you close with your initial shopping, 40 lbs. of compost will be approximately 1 cf +/- a lot.

20 cf of mixed compost? If you mean 5 types of compost mixed together as Mel suggests, then you would have 4 cf of each type. If you mixed 20 cf of mixed compost with the same amount of vermiculite and peat moss, you would have enough MM to fill six 4x4 boxes at 10 cf each.
avatar
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 64
Location : yelm, wa, usa

View user profile http://boffer.us/

Back to top Go down

Re: how many bags of compost

Post  walshevak on 1/3/2011, 12:56 am

@boffer wrote:Hi,

Have you heard of TMI? TMI=Too Much Information.

Your question is NEI. Not Enough Information. Alright, I just made up NEI!

Weight of a product is no indication of it's volume. I realize some compost is sold by weight, but it's really an irrelevant number when it comes to making MM. MM is measured by volume.

To help get you close with your initial shopping, 40 lbs. will be approximately 1 cf +/- a lot.

20 cf of mixed compost? If you mean 5 types of compost mixed together as Mel suggests, then you would have 4 cf of each type. If you mixed 20 cf of mixed compost with the same amount of vermiculite and peat moss, you would have enough MM to fill six 4x4 boxes at 10 cf each.


Thanks boffer. That is what I guessed but didn't trust my estimation of the volume of 40 lb bags. Six 4x4 boxes is exactly what I'm aiming for, down from five 8x8 plots created BEFORE I learned about SF gardens.

Kay
avatar
walshevak

Certified SFG Instructor

Female Posts : 4339
Join date : 2010-10-17
Age : 74
Location : wilmington, nc zone 8

View user profile

Back to top Go down

Re: how many bags of compost

Post  boffer on 1/3/2011, 1:17 am

yahoo I guessed right from your other post!

I know it's a lot of work, but I would put a water barrier (plastic with a few drain holes) under your boxes to slow down the water reaching the sand underneath. Most of my boxes are tabletops with only weed cloth on the bottom. That gives me a perspective to see that water can run through MM in a heartbeat if the MM is not saturated. The watering technique and schedule that works for me: slow and frequent.

Happy Gardening
avatar
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 64
Location : yelm, wa, usa

View user profile http://boffer.us/

Back to top Go down

Re: how many bags of compost

Post  walshevak on 1/3/2011, 1:31 am

@boffer wrote: yahoo I guessed right from your other post!

I know it's a lot of work, but I would put a water barrier (plastic with a few drain holes) under your boxes to slow down the water reaching the sand underneath. Most of my boxes are tabletops with only weed cloth on the bottom. That gives me a perspective to see that water can run through MM in a heartbeat if the MM is not saturated. The watering technique and schedule that works for me: slow and frequent.

Happy Gardening

You found me out. I have several threads going because I'm a newbie at SFG. I direct the gardens at my son's house and I'm planning tabletops for my house. He can get down on the ground. If I get down, it ain't pretty watching me try to get back up. Laughing

I am really enjoying all the friendly advice available on these forums.

Kay
avatar
walshevak

Certified SFG Instructor

Female Posts : 4339
Join date : 2010-10-17
Age : 74
Location : wilmington, nc zone 8

View user profile

Back to top Go down

Re: how many bags of compost

Post  Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum