摘要
为了研究聚丁二酸丁二醇酯(PBS)基共聚物的降解性能及其对冬小麦生长的影响,笔者将冬小麦分别播种在混有等量PBS,改性共聚物聚丁二酸丁二醇酯/丁二酸己二醇酯(PBS-co-HS),聚丁二酸丁二醇酯/己二酸丁二醇酯(PBS-co-BA)的聚合物碎片的土壤中,研究聚合物在土壤中的降解,及其持续降解过程中的降解中间体、降解产物对冬小麦种子发芽及生长的影响。结果表明,在相同条件下的陕西塿土中,共聚物比PBS显示出更好的生物降解性能;聚合物处理对冬小麦的发芽率、株高没有影响,但有利于植株生物量的提高。因此,可生物降解材料PBS、PBS-co-HS和PBS-co-BA的降解及其降解产物对目前土壤环境中植物的生长暂时没有影响。
In order to study the degradation of PBS-based copolymer and impact on the growth of winter wheat,seeds of winter wheat were sowed and cultivated in a soil blended with polymers,such as PBS,poly （butylene succinate）-co-（hexane succinate） （PBS-co-HS） and poly （butylene succinate）-co-（butylene adipate） （PBS-co-BA）.The degradation of polymers,the impact of the degradation intermediates and degradation products of polymers on the winter wheat seed germination and the growth had been investigated.The results showed that the degradation of copolymers proceeded faster than that of PBS under the same conditions of Shaanxi soil,different soil treatments with polymer did not affect the germination rate of winter wheat,stem height,but enhanced the plant biomass.These results suggested that investigated polymeric materials as well as the products of their degradation possibly at present temporarily in the soil do not affect plant growth.
出处
《中国农学通报》
CSCD
北大核心
2011年第7期138-143,共6页
Chinese Agricultural Science Bulletin
基金
陕西省重大创新项目(2009ZKC08-09)
陕西省教育厅产业化育研项目(2010JC01)
咸阳市科技计划项目(2010K05-02)
陕西科技大学科研启动基金
陕西科技大学创新科研团队基金(TD10-01)
关键词
冬小麦
降解
PBS基共聚物
winter wheat
degradation
PBS-based copolymer
