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Regenerative Agriculture and Direct Drilling
Regen Ag Crops & Agronomy
Om levels
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<blockquote data-quote="N.Yorks." data-source="post: 3345606" data-attributes="member: 46426"><p>What is the management history of these fields? Arable or grassland, what rotations? Regular FYM applications?You've obviously cropped them the last couple of years, but do they have a history of being grass leys?</p><p></p><p>Was the 13.8t/ha of green manure an estimate? The volume of vegetation you'll return from the cover crop (CC) depends on the mix of CC species mix and the density with which they have established themselves.</p><p></p><p>I would say that after a couple of years of CC's contributing 13.8t/ha back to the soil that wouldn't be enough to <u>significantly</u> boost the soil %OM levels. They will definitely raise them but only gradually. It's something that will need to be done regularly,coupled with additions of FYM, compost, crop residues etc. This is my opinion, so happy to be proven wrong with trial evidence of course.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>If you've got these high OM levels, I would wonder what other management has occurred in the past, hence my earlier questions.</p></blockquote><p></p>
[QUOTE="N.Yorks., post: 3345606, member: 46426"] What is the management history of these fields? Arable or grassland, what rotations? Regular FYM applications?You've obviously cropped them the last couple of years, but do they have a history of being grass leys? Was the 13.8t/ha of green manure an estimate? The volume of vegetation you'll return from the cover crop (CC) depends on the mix of CC species mix and the density with which they have established themselves. I would say that after a couple of years of CC's contributing 13.8t/ha back to the soil that wouldn't be enough to [U]significantly[/U] boost the soil %OM levels. They will definitely raise them but only gradually. It's something that will need to be done regularly,coupled with additions of FYM, compost, crop residues etc. This is my opinion, so happy to be proven wrong with trial evidence of course.:) If you've got these high OM levels, I would wonder what other management has occurred in the past, hence my earlier questions. [/QUOTE]
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Om levels
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