aarthrj3811
Gold Member
Re: The "metal detector mfr's are afraid of LRL's" delusion
http://en.wikipedia.org/wiki/Topsoil
Erosion
A major environmental concern known as topsoil erosion occurs when the topsoil layer is blown or washed away. Without topsoil, little plant life is possible. The estimated annual costs of public and environmental health losses related to soil erosion exceed $45 billion.[2] Conventional agriculture encourages the depletion of topsoil because the soil must be plowed and replanted each year. Sustainable techniques attempt to slow erosion through the use of cover crops in order to build organic matter in the soil. The United States alone loses 2 billion tons of topsoil per year[citation needed]. This is of great ecological concern as one inch of topsoil can take 500 years to form naturally.[3] However, farmer and engineer P. A. Yeomans developed a technique known as Keyline design, which has been proven to convert subsoil into topsoil much faster; Yeomans published a book, called Water For Every Farm, in 1954 about the technique[citation
Yes it looks like soil erosion is helping the conventional Metal Detector companies stay in business.
http://en.wikipedia.org/wiki/Topsoil
Erosion
A major environmental concern known as topsoil erosion occurs when the topsoil layer is blown or washed away. Without topsoil, little plant life is possible. The estimated annual costs of public and environmental health losses related to soil erosion exceed $45 billion.[2] Conventional agriculture encourages the depletion of topsoil because the soil must be plowed and replanted each year. Sustainable techniques attempt to slow erosion through the use of cover crops in order to build organic matter in the soil. The United States alone loses 2 billion tons of topsoil per year[citation needed]. This is of great ecological concern as one inch of topsoil can take 500 years to form naturally.[3] However, farmer and engineer P. A. Yeomans developed a technique known as Keyline design, which has been proven to convert subsoil into topsoil much faster; Yeomans published a book, called Water For Every Farm, in 1954 about the technique[citation
Yes it looks like soil erosion is helping the conventional Metal Detector companies stay in business.
