T/HNX 002-2019 保水松土功能控释掺混肥料

主要技术内容:1、  控释掺混肥料主包的要求项        目                                                                              指        标总养分（N+P2O5+K2O）的质量分数a，%                             ≥35水溶性磷占有效磷百分率b，%                                                 ≥60控释养分量c，%                                                                      ≥标明值控释养分28天的累积养分释放率，%                                         ≤75水分的质量分数，%                                                                 ≤2.0粒度（2.00～4.00mm），%                                                    ≥70氯离子质量分数d，%                                                               ≤3.0中量元素单一养分的质量分数（以单质计）d，%                      ≥2.0微量元素单一养分的质量分数（以单质计）e，%                      ≥0.022、  复混肥料天然多元素添加物（副包）的要求项        目                                                                              指        标钙（Ca）+镁（Mg）含量，%                                                 ≥        5硅（Si）含量的质量分数，mg/kg                                            ≥     500.0锌(Zn)+铜(Cu)+