细菌微生物对高分子缓控释化肥降解性能的影响

Effects of Microbes on Degradation Properties of Polymer Slow Controlled-Release Fertilizer

[目的]研究细菌微生物对高分子缓控释化肥降解性能的影响。[方法]以尿素、甲醛、磷酸二氢钾为原料,制备出高分子缓控释化肥。通过在淤泥中分离培养细菌微生物,同时与高温灭菌土做对比。[结果]与高温灭菌土相比,高分子缓控释化肥在细菌微生物的作用下,具有更快的养分释放速度和更高的失重率,80 d后分别达到98%和88%;SEM照片显示,在微生物的作用下,高分子缓控释化肥表面产生很多孔洞。[结论]该高分子缓释肥是一种可生物降解肥,是一种绿色化肥。

[ Objective ] The research aimed to study the effects of microbes on the degradation of the slow controlled-release fertilizer. [ Method ] A polymer slow controlled-release fertilizer was prepared using urea, formaldehyde, and potassium dihydrogen phosphate as raw materials.Microbes in silt were isolated and cuhured, and the high-temperature sterilization of the soil was compared with at the same time. [ Result ] Compared with the high-temperature sterilization of the soil, on the effect of the bacterial microorganism, the polymer slow controlled-release fertilizer had the faster speed of nutrient release and the higher weightlessness,reached 98% and 88% respectively in 80 days. SEM showed that there were a lot of holes on the surface. [ Conclusion] The fertilizer is a kind of biodegradable fertilizer and green fertilizer.