关键词: 土壤保水剂, 吸水性, 保水性, 保水剂应用

Abstract: Soil water-holding agent is one kind of new chemical drought-resistant materials. They are widely used in the agricultural production and afforestation in arid zone. This paper describes the characteristics of some soil water-holding agents and their application abroad and at home.

Key words: Soil water-holding agent, Water aborbing property, Water-holding agent application