如何识别真假化肥--杨远锋的博客

如何识别真假化肥

[ 2011-3-3 18:46:00 | By: 杨远锋 ]

看一看肥料的包装，正规的厂家商标、产品名称、养分含量或等级、净重、厂名、厂址等。二看肥料的度粒和结晶状态。一般比较正规的厂家生产的肥料颗粒均匀，表面光滑。三看肥料的颜色。不同肥料有一些特有的颜色，氮肥除石灰氮外，一般都是白色，略带黄褐色或浅黄色。
    嗅通过肥料的气味简单地判别，碳酸氢铵有臭味，硫酸铵有酸味。假冒伪劣肥料气味不明显。
    烧将化肥的样品加热或者燃烧，从火焰的颜色、烟味、残留物可以判断真假。碳铵烧了会冒白烟，有氨臭味，磷肥在燃烧了以后就没有什么变化，钾肥烧了以后就会有噼噼啪啪的响声。
    湿也就是放在水中溶解。大多数肥料放在水中，可以很好的溶解，但是近年来有一些缓控释肥料因为有特殊的包裹膜不容易溶解，但是将肥料破开以后，除外壁以外，里面的包裹的肥料很容易溶解。

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原创

[ 2016-9-6 17:15:46 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:51:24 | By: 原创(游客) ]

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原创

[ 2016-9-30 11:28:38 | By: 原创(游客) ]

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