The soil water retention rate of the complex is 6% different from that of the control group, and the proportion of chitosan added with quaternary ammonium salt increases.
The water retention rate of the compound in the soil was 6% different from that in the control group, and increased with the addition of quaternary ammonium chitosan<br>
The water retention rate of the compound differed by 6% from that of the control group in the soil, and increased with the addition of a few cloves of ammonium four salting