초록 |
Moisture is very important for plants. Recently rainfall is decreasing worldwide with a lot of droughts caused by abnormal climates. Conventional soil cannot retain moisture for a long time. As a result, the land is desolating because it is very difficult to grow plants in the areas with low rainfall. Moisture retention technology in soil is very urgently needed not only to increase of crop yields, but also to the global environment. Hydrogel is a material having a three-dimensional network structure containing a large amount of moisture. Hydrogel can be used to keep moisture in the soil and promote plant growth. In previous studies, nanocomposite hydrogels were prepared and the swelling behaviors were studied. In this study, water retention capacity was adjusted by adding ions to the hydrogel and changing the ratio of monomers. In addition, the effect of the prepared hydrogel on the growth of plants was studied. |