【摘要】 合成的土壤结构改良剂对土壤性质的影响较大,能使土壤结构改善,团粒结构和水稳性团粒提高,土壤容重减小,孔隙度增大,土壤水的渗透率增大,同时可以防止土壤侵蚀,改良土壤,但是其施用量要比老的土壤结构改良剂要小得多。更多还原

【Abstract】 Polymeric soil conditioners has great effect on soil procerties.It can improve soil structures,increase granular structure and waterstable aggregate,and pe- rcolation ratio of soil water,in crease soil porosity and decrease soil density, control soil erosin and improve soil.However,the applicating rate of Polymeric soil conditioners is much smaller than that of old soil conditioners.更多还原