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Soil carbon is a highly flawed climate policy ?
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<blockquote data-quote="martian" data-source="post: 7566003" data-attributes="member: 801"><p>Imported OM has quite a short lifespan in the soil, it helps the crops grow and feeds the soil-life for a bit, which all helps, but the heavy lifting is done by growing plants exuding carbohydrates into the soil which creates a microscopic feeding frenzy around the roots which helps the plants grow and also improves the soil by creating the conditions whereby humus is made. It's a wonderfully complex system and even if we don't understand how exactly it works, it is surely in every farmers interest to get it working on their land whether they are being paid for it or not?</p><p></p><p>Increased humus in your soil means better water holding capacity, it holds water like a sponge; healthier soil will grow healthier plants at less cost to the grower, it improves the carbon cycle (soil breathes out carbon dioxide as the plant needs it for photosynthesis) and on it goes. Most of us have no idea how good our soils could be as we are all used to working with degraded soil, scientists have calculated that up to 60% of the excess CO2 in the atmosphere came from the soil rather than fossil fuels, where man has been interfering with soil since the invention of the plough. There is a lot of room in the world's soils to put it back and crucially it doesn't cost us to put it back, but it pays us. </p><p></p><p>If someone else wants to pay us as well, then hallelujah!</p></blockquote><p></p>
[QUOTE="martian, post: 7566003, member: 801"] Imported OM has quite a short lifespan in the soil, it helps the crops grow and feeds the soil-life for a bit, which all helps, but the heavy lifting is done by growing plants exuding carbohydrates into the soil which creates a microscopic feeding frenzy around the roots which helps the plants grow and also improves the soil by creating the conditions whereby humus is made. It's a wonderfully complex system and even if we don't understand how exactly it works, it is surely in every farmers interest to get it working on their land whether they are being paid for it or not? Increased humus in your soil means better water holding capacity, it holds water like a sponge; healthier soil will grow healthier plants at less cost to the grower, it improves the carbon cycle (soil breathes out carbon dioxide as the plant needs it for photosynthesis) and on it goes. Most of us have no idea how good our soils could be as we are all used to working with degraded soil, scientists have calculated that up to 60% of the excess CO2 in the atmosphere came from the soil rather than fossil fuels, where man has been interfering with soil since the invention of the plough. There is a lot of room in the world's soils to put it back and crucially it doesn't cost us to put it back, but it pays us. If someone else wants to pay us as well, then hallelujah! [/QUOTE]
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