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Home › Device and method for industrialized continuous and simplified preparation of urea-formaldehyde slow-release nitrogen fertilizer or urea-formaldehyde-based slow- and controlled-release multi-nutrient fertilizer

Device and method for industrialized continuous and simplified preparation of urea-formaldehyde slow-release nitrogen fertilizer or urea-formaldehyde-based slow- and controlled-release multi-nutrient fertilizer

US Patent 12486204 · Granted Dec 2, 2025

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