CAJ | 학술논문

通过水溶出率法试验测定了包膜厚度、开孔剂添加量、温度和球径大小等因素对大球包膜控释复合肥养分释放速率的影响。试验结果表明：氮素和钾素的释放率显著大于磷素释放率，减小膜厚或增加开孔剂添加量均可加快各养分释放速率；当温度在25～40℃时，其氮、磷、钾的释放速率无显著变化，但温度从40℃升高至60℃时，氮、磷、钾的释放速率均显著加快；增大大球包膜控释复合肥的球径并未显著影响氮、磷、钾的释放速率，但节省了包膜材料，可降低生产成本。
통과수용출솔법시험측정료포막후도、개공제첨가량、온도화구경대소등인소대대구포막공석복합비양분석방속솔적영향。시험결과표명：담소화갑소적석방솔현저대우린소석방솔，감소막후혹증가개공제첨가량균가가쾌각양분석방속솔；당온도재25～40℃시，기담、린、갑적석방속솔무현저변화，단온도종40℃승고지60℃시，담、린、갑적석방속솔균현저가쾌；증대대구포막공석복합비적구경병미현저영향담、린、갑적석방속솔，단절성료포막재료，가강저생산성본。
The writing revolves around the effect of such factors as coating thickness , application amount of cell opener , temperature and granular diameter on release rate of nutrition of large spherical coated controlled-release compound fertilizer by using water extraction method .The experiment results have showed that releasing rate of nitrogen and potassium is obviously higher than that of phosphorus . Reducing coating thickness or increasing amount of cell opener can increase release rate of different nutrients .At temperature of 25~40 ℃, there has been no obvious releasing difference of nitrogen , phosphorus and potassium .However , when the temperature is raised from 40 ℃to 60 ℃, the release rate of nitrogen, phosphorus and potassium has been increased remarkably .It has been concluded increasing spherical diameter of large spherical coated controlled-release compound fertilizer can not directly affect release rate of nitrogen , phosphorus and potassium greatly , but it brings the benefits of saving coat material and reducing production costs .