【摘要】 BB肥的基础原料大多是养分含量较高的尿素、磷酸铵、氯化钾 (硫酸钾 ) ,当要配制多种配方 ,总养分含量在 2 5 %～ 4 5 %的BB时 ,就需要掺混含低磷、低钾的颗粒肥料 (称辅料 )。介绍低磷、低钾、低磷钾、腐植酸铵 4种颗粒辅料的生产技术 ,及用其进行 15 15 15BB肥的用料量配比更多还原

【Abstract】 Based on the fact that the most of basic raw materials of BB fertilizer are from highanalysis such fertilizers as urea, ammonium phosphate, potassium chloride(sulfate), some granular fertilizers with lowanalysis phosphorus, potassium (so called auxiliary materials) are prepared for blending to obtain the varieties of BB fertilizers with total nutrient of 25%～45%. 4 techniques for production of granular auxiliary materials with lowanalysis phosphorus, potassium, phosphorus plus potassium and ammonium humate are presented and an example of BB fertilizer 151515 is given of various granular fertilizers dosing.更多还原