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Where does a predominantly grassland farm fit in with carbon credits
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<blockquote data-quote="Kiwi Pete" data-source="post: 7652777" data-attributes="member: 63856"><p>Depends entirely on management and inputs. Dog and stick, perm pasture.... not too bad.</p><p>Heaps of new grass and inputs... may as well grow grain and export every speck of what grew</p><p></p><p>We aren't too bad as we have reasonable "output" with very little input, a lot of grassland needs to be destocked at some point of the year or at least well rested / long rotations. </p><p>Once you try to grow grass "faster" then the inputs required completely negate any increase in photosynthesis, which is where it comes from.</p><p></p><p>Out of 100 units of SOC, between 70 and 80 come from your plants' photosynthesis pumping simple carbohydrate downwards, the balance is residues decomposing. This is why well managed grassland is streets ahead of forests of exotic species that don't form mycorrhizal associations, in the respect of Carbon storage.</p><p></p><p>Unfortunately, the best place in the world to grow good grassland, are also the places where "improvements" are made, which is a large problem because so few realise that their 30 day rotation + urea is taking them nowhere. </p><p>Their weeds are doing more work.</p></blockquote><p></p>
[QUOTE="Kiwi Pete, post: 7652777, member: 63856"] Depends entirely on management and inputs. Dog and stick, perm pasture.... not too bad. Heaps of new grass and inputs... may as well grow grain and export every speck of what grew We aren't too bad as we have reasonable "output" with very little input, a lot of grassland needs to be destocked at some point of the year or at least well rested / long rotations. Once you try to grow grass "faster" then the inputs required completely negate any increase in photosynthesis, which is where it comes from. Out of 100 units of SOC, between 70 and 80 come from your plants' photosynthesis pumping simple carbohydrate downwards, the balance is residues decomposing. This is why well managed grassland is streets ahead of forests of exotic species that don't form mycorrhizal associations, in the respect of Carbon storage. Unfortunately, the best place in the world to grow good grassland, are also the places where "improvements" are made, which is a large problem because so few realise that their 30 day rotation + urea is taking them nowhere. Their weeds are doing more work. [/QUOTE]
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