Chemical BB Fertilizer Npk 13-13-21

Chemical BB Fertilizer Npk 13-13-21

BB fertilizer is a simple mixing fertilizer. According to formulas, urea/ammonium sulphate granular/DAP/MOP/SOP granular are mixed to be BB fertilizer(bulk blended fertilizer). Generally, BB fertilizer have more contents than compound fertilizer and cheaper than compound fertilizer. So BB...

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