Good day from Pheba, from the farm:
Energy Unltd., thank you for your interest in my post. I am not as technically savvy as some so I do not post often. I do know farming as I have been involved in agriculture in one form or another for decades.
Buzzard and others answered your question for the most part.
I highly reccomend a study of the history of guano production. The history is fascinating and weird.
Here is an interesting fact to ponder. When our ancestors first stepped foot on the soil of this continent a farmer could stick a shovel in the earth and find 12 to 24 inches of topsoil.
Today the average topsoil depth is 4 to 6 inches. Think about it. We feed billions of people with 4 to 6 inches of topsoil.
I believe it was Richard Heinberg who said that farming is just pouring petroleum on the ground to create food.
I forget the exact detail on this next fact, so somebody can verify for me. But if memory serves I believe it takes earthworms about 500 years to make from 1/2 inch to 1 inch of topsoil.
So I gues we could call topsoil a renewable resource.
But that sure isn't going to save us.
the 160 acres that we raise our cattle on was a crop farm for many years. My husband cropped it until the land played out and his equipment wore out. Prior to my husband's ownership the land went through decades of grazing and cropping in one form or another. The land is just played out. Our farm is similar to most in the state. (and the nation)
We carefully manage the cattle to prevent overgrazing and erosion. We practice intense grazing management. We have the property divided up into small pasture and rotate the cattle heavily during high grazing seasons. We use old big bales, and anything else can find to use in ditches and other places on the farm where we find erosion.
We raise beef cattle to help support us while letting the ground rest and hopefully create a small amount of topsoil during our lifetime. Hopefully we can leave the place a little better than we found it. My husband has worked tirelessly for years to build this farm into something better.
He has planted more trees than I care to think about, and tries to create wildlife areas.
He has planted native grasses, but that is a struggle because the K31 fescue that was imported decades ago has a tendency to crowd out native plants.
This doesn't mean that it is hopeless. But, it does mean that we can not feed 6.6 billion people for much longer.
The one billion people that were fed before petro agriculture were fed from topsoil that was not completely degraded. They were fed with water from water sources that were not being depleted. Check the condition of the two great water aquafers. They were fed from soil that was not chemically depleted of all micronutrients.
And this is important. They were fed utilizing a much higher percentage of the population involved in farming. I don't have the figures before me, but in the year 1900 there were still a lot of people living in rural area. Most of these folk were involved in food production in one way or another.
Today less than two percent of Americans are farmers. Most people that live in rural areas live in house trailers, drive to the city, and their extent of livestock consists of several half starved horses and some rangy looking dogs. (pitbulls and rottweilers being very popular)
However, that total doomer porn being stated, there is some small glimmer of hope. I highly reccomend a DVD called "The Real Dirt on Farmer John". I have eagerly been awaiting the release of this documentary on DVD. The DVD was released today, and can be purchased at a web site called Angelic Organics.
If you are interested in a method of farming that just may save us, I highly reccomend this DVD.
Pheba, from the farm.
PS. When my husband retires we have plans to expand and diversify our farm. We are planning on raising chickens, utilizing chicken tractors. We can move the tractors into fields the cattle have recently vacated. The chickens scratch in the cattle manure, consuming pest insects, and other nutritious matter, while increasing field fertility.
The problem most farmers have today is time and money. The age old problem. When a person has the money, they usually don't have the time and vice versa. Right now hubby still works. He is a carpenter. he just doesn't have the time, and I can't manage chickens by myself.
We raise blackberries, and hubby spends hours all summer picking them. The only problem I find with blackberries is that I can not hang out my laundry. The birds eat some of the berries and dive bomb my laundry. they have a habit of targeting the most expensive item on the clothesline.







