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首页> 外文期刊>Fertilizer Research: An International Journal on Fertilizer Use >IMPACT ON AMMONIA VOLATILIZATION LOSSES OF MIXING KCI OF HIGH PH WITH UREA
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IMPACT ON AMMONIA VOLATILIZATION LOSSES OF MIXING KCI OF HIGH PH WITH UREA

机译：尿素混入高浓度KCI对氨气挥发损失的影响

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摘要

Ammonia volatilization associated with urea hydrolysis has been shown to be primarily associated with the pH of the soil solution and its buffering ability in the immediate zone of the fertilizer granule. Numerous studies have also shown that these losses can be reduced significantly by the addition of large amounts of KCl with the urea. Because the pH of commercial sources of potash ranges from 6.5 to 9.5, investigations were conducted to determine if the high pH of these K sources had an effect on the ammonia lost from three contrasting soils. Despite large ammonia losses (approximately 50% of N applied) and a significant reduction in loss due to the use of KCI (30%-50% reduction), the experiments showed no effect of potash pH on ammonia loss. It may be concluded that no risk of enhanced ammonia loss can be associated with the use of high-pH potash sources.
机译：与尿素水解有关的氨挥发已显示出主要与土壤溶液的pH及其在肥料颗粒紧邻区域的缓冲能力有关。许多研究还表明，通过与尿素一起添加大量的KCl可以显着减少这些损失。由于钾肥的商业来源的pH值在6.5至9.5之间，因此进行了研究以确定这些钾源的高pH值是否对三种对比土壤中的氨气流失产生影响。尽管有大量氨气损失（大约施用了50％的氮），并且由于使用了KCI而使损失显着减少（减少了30％-50％），但实验表明钾盐pH对氨气损失没有影响。可以得出结论，使用高pH钾盐源不会增加氨气流失的风险。

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