Granular organic fertilizer

摘要

Problem to be solved: to propose a method of producing a granular organic fertilizer and improving the effect of the slow effect and improving the manufacturing cost.Solution: for a slurry comprising urea and formaldehyde, which are adjusted in the molar ratio of urea / formaldehyde to 1.0 or less thanAfter preparing the premix, the urea / formaldehyde molar ratio (U / F ratio) is adjusted to a range of 1.13 or more and less than 1.84 by adding urea to 5.0 to 20% by massThe above described premix is added to the organic material with the highest water content.After mixingGranulationMethod for producing granular organic fertilizer for drying process.No selection