壳聚糖的结构、功能及其在农业上的应用研究进展

壳聚糖具有生物相容性、生物降解性、抗菌活性和无毒性等特点，广泛应用于医学、制药、纺织等多个领域，但在农业领域壳聚糖的应用报道较少。阐述了壳聚糖的结构特征以及功能，总结了壳聚糖作为抗菌剂对植物病原菌的抑制作用和对生防菌的协同促进作用，介绍了壳聚糖在农业领域作为载体材料负载农药、肥料、土壤改良剂等应用，最后概述了壳聚糖对植物免疫防御作用的影响。壳聚糖在农业上的应用为农业生产者在改善土壤质量和提高农业生产率等问题上提供了一种新型的绿色环保方法，为可持续发展农业提供了新思路。

Research Progress on Structure and Function of Chitosan and Its Application in Agriculture

Chitosan has the characteristics of biocompatibility, biodegradability, antibacterial activity, and non-toxicity. It is widely used in medicine, pharmaceutical, textile and other fields, but the application of chitosan in the agricultural field is rarely reported. The structural characteristics and functions of chitosan were expounded, and the inhibitory effect of antibacterial agents on plant pathogens and the synergistic promotion effect on biocontrol bacteria were summarized. The applications of chitosan as carrier materials in agricultural fields such as pesticides, fertilizers and soil amendments were introduced, and finally the effects of chitosan on plant immune defense were summarized. The introduction of chitosan to agriculture provides a new type of green material for agricultural producers to improve soil quality and increase agricultural productivity, and offers new ideas on sustainable agriculture.