Abstract:

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.