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Cattle Boards
Grasses, Pastures & Hay
Legume N Fixation & Mineral Cycle Math ?
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<blockquote data-quote="Stocker Steve" data-source="post: 1310709" data-attributes="member: 1715"><p>Aggressive grazing experts recommend up to 50% legume in the mix, partially to increase N fixation for feeding the grass component.</p><p>Soil health experts are show casing the minerals provided each year by organic matter.</p><p>If you combine these two - - a 40% legume/4% OM pasture should be putting out about 145 to 180# N per acre per year. Sounds good to me.</p><p></p><p>The cautionary note that has been repeated a lot is that the grass/legume mix may be limited by P. I know I have some eroded hill sides and mined out remote fields, that are less than 10 on the Olsen scale. Do you see a lot of land that is P limited, or is something else the weak link in your system ?</p></blockquote><p></p>
[QUOTE="Stocker Steve, post: 1310709, member: 1715"] Aggressive grazing experts recommend up to 50% legume in the mix, partially to increase N fixation for feeding the grass component. Soil health experts are show casing the minerals provided each year by organic matter. If you combine these two - - a 40% legume/4% OM pasture should be putting out about 145 to 180# N per acre per year. Sounds good to me. The cautionary note that has been repeated a lot is that the grass/legume mix may be limited by P. I know I have some eroded hill sides and mined out remote fields, that are less than 10 on the Olsen scale. Do you see a lot of land that is P limited, or is something else the weak link in your system ? [/QUOTE]
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