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Regenerative Agriculture and Direct Drilling
Holistic Farming
Most cost effective way to build soil carbon
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<blockquote data-quote="Old McDonald" data-source="post: 3046908" data-attributes="member: 47276"><p>My sentiments exactly. If we grow two blades of grass where only one grew before........ it is up to our succesors in tenure to continue our work and nothing we can do if they do not. I believe that if we increase degradable soil OM then all else in your first paragraph automatically follows.</p><p></p><p>I do not have the scientific knowledge to discuss the pros and cons of heat treated compost, but just saw it from a practical point of view as being of low degradability and therefore of little practical use as a fertilty builder in the foreseeable future of an individual farmer. I am a great believer in building soil OM that can be broken down <strong>within a reasonable time </strong>to become available to plants. Off topic, but I do not see why farmers should sequestrate carbon in their soils that is of no short or even medium term benefit to them when the rest of the world is producing the carbon we are being asked to sequestrate.</p><p></p><p>I am quite happy to have crop residues etc scattered on the surface after preparations for a subsequent crop as I know these will eventually become part of the food chain for the underground army, but I am not too happy about having to produce OM that I know cannot be utilised by me or my successors within the next 20 years. It takes far too much N to break it down into useable form, and that N either depletes my underground forces, or my crops during that time. Humus has a ratio of approx 10C:1N and if there is too much C then it takes too long to make it available to crops.</p><p></p><p>2%N in compost means that the C is sequestered unless a lot of N can be applied to break down the C. Of course, this is what some people want. They do not want farmers to break down the C into useable forms. They want it to stay sequestered so that the rest of the world can continue to produce C that we will sequester in order that they can continue to produce even more C with equanimity.</p></blockquote><p></p>
[QUOTE="Old McDonald, post: 3046908, member: 47276"] My sentiments exactly. If we grow two blades of grass where only one grew before........ it is up to our succesors in tenure to continue our work and nothing we can do if they do not. I believe that if we increase degradable soil OM then all else in your first paragraph automatically follows. I do not have the scientific knowledge to discuss the pros and cons of heat treated compost, but just saw it from a practical point of view as being of low degradability and therefore of little practical use as a fertilty builder in the foreseeable future of an individual farmer. I am a great believer in building soil OM that can be broken down [B]within a reasonable time [/B]to become available to plants. Off topic, but I do not see why farmers should sequestrate carbon in their soils that is of no short or even medium term benefit to them when the rest of the world is producing the carbon we are being asked to sequestrate. I am quite happy to have crop residues etc scattered on the surface after preparations for a subsequent crop as I know these will eventually become part of the food chain for the underground army, but I am not too happy about having to produce OM that I know cannot be utilised by me or my successors within the next 20 years. It takes far too much N to break it down into useable form, and that N either depletes my underground forces, or my crops during that time. Humus has a ratio of approx 10C:1N and if there is too much C then it takes too long to make it available to crops. 2%N in compost means that the C is sequestered unless a lot of N can be applied to break down the C. Of course, this is what some people want. They do not want farmers to break down the C into useable forms. They want it to stay sequestered so that the rest of the world can continue to produce C that we will sequester in order that they can continue to produce even more C with equanimity. [/QUOTE]
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Most cost effective way to build soil carbon
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