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发明公开
CN103804044A 中微量元素颗粒及其制备方法以及含有该中微量元素颗粒的缓控释掺混肥料 无效 - 驳回 复审申请

中微量元素颗粒及其制备方法以及含有该中微量元素颗粒的缓控释掺混肥料
摘要：
本发明公开了一种中微量元素颗粒及其制备方法以及含有该中微量元素颗粒的氯化钾/硫酸钾型缓控释掺混肥料。所述氯化钾型缓控释掺混肥料的重量份组成为：中微量元素颗粒10份、含氮37%的缓控释尿素18份、氧化钾含量60%的颗粒氯化钾10-40份、氮含量46.4%的尿素2-34份、11-44颗粒磷酸一铵0-50份、18-46颗粒磷酸二铵0-54份、凹凸棒粉颗粒0-12份；所述硫酸钾型缓控释掺混肥料的重量份组成为：中微量元素颗粒10份；含氮37%的缓控释尿素18份；氧化钾含量50%的颗粒硫酸钾16-40份；氮含量46.4%的尿素2-23份；11-44颗粒磷酸一铵0-34份；18-46颗粒磷酸二铵0-54份。
摘要（英）：

The invention discloses medium trace element particles and a preparation method thereof, and a potassium chloride/potassium sulfate type controlled-release bulk blending fertilizer containing the medium trace element particles. The potassium chloride type controlled-release bulk blending fertilizer is composed of the following components in parts by weight: 10 parts of medium trace element particles, 18 parts of controlled-release urea containing 37% of nitrogen, 10-40 parts of granular potassium chloride containing 60% of potassium oxide, 2-34 parts of urea containing 46.4% of nitrogen, 0-50 parts of monoammonium phosphate having the granularity in the range of 11-44, 0-54 parts of diammonium phosphate having the granularity in the range of 18-46 and 0-12 parts of attapulgite powder particles; the potassium sulfate type controlled-release bulk blending fertilizer is composed of the following components in parts by weight: 10 parts of medium trace element particles, 18 parts of controlled-release urea containing 37% of nitrogen, 16-40 parts of granular potassium sulfate containing 50% of potassium oxide, 2-23 parts of urea containing 46.4% of nitrogen, 0-34 parts of monoammonium phosphate having the granularity in the range of 11-44 and 0-54 parts of diammonium phosphate having the granularity in the range of 18-46.

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