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NITROGEN FERTILISER HAVING A LONG-TERM ACTION AND PROCESS FOR ITS MANUFACTURE
NITROGEN FERTILISER HAVING A LONG-TERM ACTION AND PROCESS FOR ITS MANUFACTURE
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机译:长期施氮的氮肥及其生产工艺
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摘要
The invention relates to a nitrogen fertilizer having a long-term action based on urea-formaldehyde condensation products suspended in water. The fertilizer contains dicyandiamide in an amount of from 5 to 35% by weight of dicyandiamide-nitrogen, based on the nitrogen content of the urea, and from 0.001 to 0.5% by weight of polymers of vinyl alcohol or polymers of aldehyde-carboxylic acids, based on the weight of the suspension.
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