Substantially water-insoluble polymeric soil conditioner for improving the physical structure of soils

摘要: A soil conditioner consisting substantially of a water-swellable or water-insoluble polymer obtained by flocculating an initial reaction product water-soluble containing acid groups and trivalent higher valent polycations with each other anionic high molecular weight flocculant, which is applied to improve the water-retentivity fertilizer-retentivity.