Abstract:

Palygorskite is natural and nanometer-sized ecological function material, due to its good adsorbability and slow-releasing effect, it can be used as neurotrophic agents of crop and slow-release formulation of fertilizer in ecological agriculture.　To further prove its ecological function, the field experiment has been made to study the effect of fertilizer coated with ecological function material palygorskite on the yield and quality of potato, and the result showed that: ecological function material palygorskite fertilizer could effectively faise potato outputs and improve its quality. Single application of palygorskite could make the yield increased by 17.38%, and compound fertilizer with it could increase by 46.85～59.95%; Single application of palygorskite could increase the starch content of potato by 0.24%, and compound fertilizer with it could increase by 46.85～59.95%.So the results also showed that palygorskite has slow-releasing effect on fertilizer.