Subtropical desert (Köppen: BWh)
Elevation: 1090 ft Annual rainfall: 7"
Energy Curmudgeon
Green Fret Consulting
Topher Belknap wrote:
While I appreciate the thought, it would have been nice if they had used compatible units. How thick does that increase in material need to be for example? Then I could figure out what the percentage of water would be in good soil, or material needed for a 10' x 30' garden plot. As it stands, all I know is that organic material increases water retention. Which I knew. Thanks for posting.
Thank You Kindly,
Topher
Subtropical desert (Köppen: BWh)
Elevation: 1090 ft Annual rainfall: 7"
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus
R Scott wrote:So, an increase of 1% in organic matter will hold almost and extra inch of rain, regardless of the area--whether it is a 100 sq ft garden or 1000 acre farm.
Subtropical desert (Köppen: BWh)
Elevation: 1090 ft Annual rainfall: 7"
Energy Curmudgeon
Green Fret Consulting
Topher Belknap wrote:
The key to my complaint was no mention of depth. Talking about amounts of material in terms of square footage is nonsense. % * ft^2 does not equal ft^3. If there is some well-known thickness which everyone but me knows, so be it, but I rather think such would be climate, etc. dependent. Clearly, 1% of organics in the top 1 inch of soil only, is NOT going to hold 25,000 gallons of water, nor is 1% all the way down 100 feet likely to hold a mere 25,000 gallons. Once I have that number I can do the math. Is two feet definitely the number that the USDA used?
Thank You Kindly,
Topher
Subtropical desert (Köppen: BWh)
Elevation: 1090 ft Annual rainfall: 7"
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus
Subtropical desert (Köppen: BWh)
Elevation: 1090 ft Annual rainfall: 7"
My project thread
Agriculture collects solar energy two-dimensionally; but silviculture collects it three dimensionally.
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus