Conventional agricultural soils are depleted of organic matter because we burn out the carbon in the soil by heavy use of anhydrous ammonia. We also export organic matter from the farm when we sell the corn and soybean stalk residue (called stover).
Showing posts with label Farming 300 Series. Show all posts
Showing posts with label Farming 300 Series. Show all posts
Wednesday, January 27, 2016
Monday, January 25, 2016
Soil 302: Exhausted
Conventional agricultural soils are exhausted because we don't replace both macro and micro minerals removed by heavy cropping.
Settlers on the prairie would homestead for 7-10 years, exhaust the soil and move on. We avoid the moving on scenario by applying macro minerals N-P-K-Ca. With this regimen the plants look good but the human body and critters we grow for food need 92 minerals.
So what about the other 88 minerals.
Settlers on the prairie would homestead for 7-10 years, exhaust the soil and move on. We avoid the moving on scenario by applying macro minerals N-P-K-Ca. With this regimen the plants look good but the human body and critters we grow for food need 92 minerals.
So what about the other 88 minerals.
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