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<blockquote data-quote="Stocker Steve" data-source="post: 1638929" data-attributes="member: 1715"><p>Yes. You can haul OM in or you can grow it. All the land I have come up was mined out to some extent, and I am an optimizer, so I have tried a number of approaches. In chronological order:</p><p></p><p>1) Classic MIG - - Lime, early spring 40# acre N app, and short 21 to 28 day rotations. OM went up about 0.1% per year. Too slow for me. Would be OK on rented ground.</p><p>2) Purchase salts - - Lime, turkey litter to meet P target and granules to meet K target. Too expensive for me. Some corn farmers are doing this now to reduce losses.</p><p>3) Bringing in bale grazing hay - - Works fast but makes quite a mess if you don't have very high quality hay. Unrolling would be better if you have the time and the climate. Takes K to about 240 ppm and P to about 48 ppm in 18 months. OM is hard to measure due to all the litter but an increase of 1.0 % per year is doable short term. Too easy for me.</p><p>4) Grow annuals as part of a complicated biological rotation - - Struggled with this because I am too cheap to buy a good no till drill. This, with bale grazing as part of the rotation, and wet (not frost) seeding is the bomb here.</p><p>5) Graze tall - - High grazing density and low grazing utilization results in a lot of dry matter and roots going back to the soil. Some of the current national "experts" recommend this for everyone. Not a total solution with my climate. Snow gets too deep and winters are too long. Midsouth data shows OM going up a couple tenths per year for 5 to 7 years.</p></blockquote><p></p>
[QUOTE="Stocker Steve, post: 1638929, member: 1715"] Yes. You can haul OM in or you can grow it. All the land I have come up was mined out to some extent, and I am an optimizer, so I have tried a number of approaches. In chronological order: 1) Classic MIG - - Lime, early spring 40# acre N app, and short 21 to 28 day rotations. OM went up about 0.1% per year. Too slow for me. Would be OK on rented ground. 2) Purchase salts - - Lime, turkey litter to meet P target and granules to meet K target. Too expensive for me. Some corn farmers are doing this now to reduce losses. 3) Bringing in bale grazing hay - - Works fast but makes quite a mess if you don't have very high quality hay. Unrolling would be better if you have the time and the climate. Takes K to about 240 ppm and P to about 48 ppm in 18 months. OM is hard to measure due to all the litter but an increase of 1.0 % per year is doable short term. Too easy for me. 4) Grow annuals as part of a complicated biological rotation - - Struggled with this because I am too cheap to buy a good no till drill. This, with bale grazing as part of the rotation, and wet (not frost) seeding is the bomb here. 5) Graze tall - - High grazing density and low grazing utilization results in a lot of dry matter and roots going back to the soil. Some of the current national "experts" recommend this for everyone. Not a total solution with my climate. Snow gets too deep and winters are too long. Midsouth data shows OM going up a couple tenths per year for 5 to 7 years. [/QUOTE]
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