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公开(公告)号：US20210363073A1
公开(公告)日：2021-11-25
申请号：US16967973
申请日：2019-02-06
发明人： My T. NGUYEN , Hoa V. TRAN , Man M. LY , Van T. KIM , Nhien H. LE , Na THACH , Sony T. VO , Vinh Q. NGUYEN
摘要： There is provided a nitrogen fertilizer granule in which the nitrogen release can be timed and the nitrogen release rate can be controlled according to the needs of the plants to be fertilized. The smart release nitrogen-containing fertilizer granule comprises a nitrogen-containing fertilizer core; an organic functional layer covering the core, wherein the organic functional layer comprises at least one functional organic compound that is an enzyme inhibitor, a microbial suppressor, a phosphorus solubilizer, and/or a plant hormone; a controlled release layer covering the organic functional layer, wherein the controlled release layer comprises water-swellable copolymeric nanoparticles; and an anticaking layer covering the controlled release layer, wherein the anticaking layer comprises water-insoluble copolymeric nanoparticles.
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公开(公告)号：US20210139388A1
公开(公告)日：2021-05-13
申请号：US16961919
申请日：2019-02-06
发明人： My T. NGUYEN , Hoa V. TRAN , Man M. LY , Van T. KIM , Nhien H. LE , Na THACH , Sony T. VO , Vinh Q. NGUYEN
摘要： There is provided a smart release potash fertilizer granule comprising a potash core; an extended release layer covering the potash core, wherein the extended release layer comprises water-swellable copolymeric nanoparticles and at least one water-soluble organic acid or water-soluble organic carboxylate salt; a controlled release layer covering the extended release layer, wherein the controlled release layer comprises water-swellable copolymeric nanoparticles; and an anticaking layer covering the controlled release layer, wherein the anticaking layer comprises water-insoluble copolymeric nanoparticles.
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