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Gardening
Cover crops: the C:N ratio
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<blockquote data-quote="MickThompson" data-source="post: 4471874" data-attributes="member: 3172"><p>Something to think about if you are trying cover crops to build soil nutrients. C:N is the ratio of carbon to nitrogen in the standing crop. The max you really want to shoot for is 20:1. Much beyond that, and the soil microbes have to consume soil N to break down the carbon. I noticed a lag this year after a wheat heavy cover crop and this is what it was. Termination date matters as well. The older a crop is, the higher the C content. I'm thinking I'll skip the wheat and go with higher N cover instead this round. </p><p></p><p>The trade off is weed suppression. Nothing trumps winter grains in that aspect. </p><p></p><p></p><p>Sent from my iPhone using Tapatalk</p></blockquote><p></p>
[QUOTE="MickThompson, post: 4471874, member: 3172"] Something to think about if you are trying cover crops to build soil nutrients. C:N is the ratio of carbon to nitrogen in the standing crop. The max you really want to shoot for is 20:1. Much beyond that, and the soil microbes have to consume soil N to break down the carbon. I noticed a lag this year after a wheat heavy cover crop and this is what it was. Termination date matters as well. The older a crop is, the higher the C content. I'm thinking I'll skip the wheat and go with higher N cover instead this round. The trade off is weed suppression. Nothing trumps winter grains in that aspect. Sent from my iPhone using Tapatalk [/QUOTE]
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Cover crops: the C:N ratio
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