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Arable Farming
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CAN Fert
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<blockquote data-quote="Bogweevil" data-source="post: 7960445" data-attributes="member: 48190"><p>yes it contains nitrate that is instantly available but prone to leaching, and ammonium that plants can use but it gets converted to nitrate quite quickly depending on the soil temperatures. In this respect it is no different to ordinary Ammonium nitrate. Calcium ammonium nitrate being merely chalk and Ammonium nitrate. As well as thwarting bomb-makers, CAN does not affect soil pH - on its own AN releases hydrogen ions as it turns into nitrate raising pH slowly acidifying the soil, the chalk in the CAN is alkaline so no acidification occurs.</p><p></p><p>There is another product called UAN which has urea, ammonium and nitrate, being a blend of urea and ammonium nitrate. Here the urea must turn into ammonia before plants can access it and thence to nitrate.</p><p></p><p>Do ask which is best, urea or ammonium nitrate and be ready for vehement arguments! Spoiler alert: it doesn't much matter.</p></blockquote><p></p>
[QUOTE="Bogweevil, post: 7960445, member: 48190"] yes it contains nitrate that is instantly available but prone to leaching, and ammonium that plants can use but it gets converted to nitrate quite quickly depending on the soil temperatures. In this respect it is no different to ordinary Ammonium nitrate. Calcium ammonium nitrate being merely chalk and Ammonium nitrate. As well as thwarting bomb-makers, CAN does not affect soil pH - on its own AN releases hydrogen ions as it turns into nitrate raising pH slowly acidifying the soil, the chalk in the CAN is alkaline so no acidification occurs. There is another product called UAN which has urea, ammonium and nitrate, being a blend of urea and ammonium nitrate. Here the urea must turn into ammonia before plants can access it and thence to nitrate. Do ask which is best, urea or ammonium nitrate and be ready for vehement arguments! Spoiler alert: it doesn't much matter. [/QUOTE]
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