作者: Willis L. Thornsberry , Charles W. Weston , Lawrence A. Peacock , Allen R. Sutton
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摘要: An improved homogenous granular fertilizer composition is disclosed; the comprised primarily of urea, N-(n-butyl)thiophosphoric triamide (NBPT), and dicyandiamide (DCD). The this invention can be applied to a field crop in single surface application will nevertheless supply sufficient nitrogen plants throughout their growth maturing cycles. new increases uptake by plants, enhances yields, minimizes loss both ammonium nitrate from soil. NBPT incorporated into blending concentrated solution solvent selected group consisting liquid amides, 2-pyrrolidone, N-alkyl 2-pyrrolidones directly molten urea prior its granulation; DCD may added melt as solid or dissolved form along with NBPT.