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Lime spreading rates.
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<blockquote data-quote="Cab-over Pete" data-source="post: 7517460" data-attributes="member: 416"><p>I’m not going to state there’s nothing in what you’re saying and that on some soils it may not be necessary to apply much lime. I don’t know enough about soil biology (does anybody?) to know if 2t/ac is too much for it. But with approximately 2000t+ of top soil in an average acre of land I can’t see that putting A BIT too much lime on is going to cause any harm to anything except the farmers bank balance.</p><p></p><p>What I do know is, to produce commodity grain, high yielding roots and veg and quality forage, the most economical way to get good yields is to have a balanced pH within the natural healthy balance of nutrients in the soil. And the best and most cost effective way to do that is to add lime or chalk after a comprehensive soil sample of the varying soil types you may have.</p><p>On the flip side, adding way too much lime can be a bad thing too. </p><p></p><p>To my mind, soil sampling should be done when the soil is in its most natural state. Moist and friable with a growing or recently harvested crop. Done on the day of collection, not sitting in a plastic bag for days and certainly not done in a lab where any particles of natural stone, brick, tile, concrete or even lime from previous applications will be ground up into a powder thus affecting the pH result.</p><p></p><p>No faffing about with expensive but unreliable electronic pH meters. Use the tried, tested and trusted method with test tubes and reliably sourced testing ingredients (for want of a better word).</p><p></p><p>But most importantly, done by someone you can trust to collect samples properly, keep soil types separate, use method and routine during testing and produce an honest recommendation for lime use. Then supply you with the best quality lime available to spread.</p><p></p><p>If you can’t find anyone in your area to do that then you’re probably not going to get the most from cost effective pH correction.</p></blockquote><p></p>
[QUOTE="Cab-over Pete, post: 7517460, member: 416"] I’m not going to state there’s nothing in what you’re saying and that on some soils it may not be necessary to apply much lime. I don’t know enough about soil biology (does anybody?) to know if 2t/ac is too much for it. But with approximately 2000t+ of top soil in an average acre of land I can’t see that putting A BIT too much lime on is going to cause any harm to anything except the farmers bank balance. What I do know is, to produce commodity grain, high yielding roots and veg and quality forage, the most economical way to get good yields is to have a balanced pH within the natural healthy balance of nutrients in the soil. And the best and most cost effective way to do that is to add lime or chalk after a comprehensive soil sample of the varying soil types you may have. On the flip side, adding way too much lime can be a bad thing too. To my mind, soil sampling should be done when the soil is in its most natural state. Moist and friable with a growing or recently harvested crop. Done on the day of collection, not sitting in a plastic bag for days and certainly not done in a lab where any particles of natural stone, brick, tile, concrete or even lime from previous applications will be ground up into a powder thus affecting the pH result. No faffing about with expensive but unreliable electronic pH meters. Use the tried, tested and trusted method with test tubes and reliably sourced testing ingredients (for want of a better word). But most importantly, done by someone you can trust to collect samples properly, keep soil types separate, use method and routine during testing and produce an honest recommendation for lime use. Then supply you with the best quality lime available to spread. If you can’t find anyone in your area to do that then you’re probably not going to get the most from cost effective pH correction. [/QUOTE]
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