| According to indoor experiments, water absorbent capacity, water absorption rate, moisture-preserving capacity and times of re-absortency of N1, N2 … etc 10 kinds of agricultural super absorbent polymers are compared between distilled water and different fertilizer solution with different concentration.The results indicate: all the super-absorbent-polymers have a higher water absorption capacity in distilled water, however, water absorbent capacity of each super absorbent polymer is impacted diversely on different concentrations of different fertilizer solution.Under the same concentration condition, water absorption capacity of B, K and Hs super absorbent polymers is higher than others, while water absorption rate of B, K, J and Hs super absorbent polymers is faster than others.The moisture-preserving capacity of B, S, K and Hs super absorbent polymers is better than others under soil and heatead evaporation conditions.After 25 times of recurrent absortency-drying, water absorption capacity of N2, S and Ph super absorbent polymers reached more than 150 times.Among water absorbent capacity, water absorption rate, moisture-preserving capacity and times of re-absortency, water absorption rate is impacted significantly by particle sizes and effects on other three kinds of characteristics are little. |