橡胶籽油枯—锯末—磷石膏联合堆肥过程研究  

Study on Co-composting Process of Rubber Seed Oil Cake,Sawdust and Phosphogypsum

作　　者：范茂攀[1] 汤利[1] 徐智[1] 阮光孝[1] 

机构地区：[1]云南农业大学资源与环境学院,云南昆明650201

出　　处：《云南农业大学学报（自然科学版）》2013年第5期750-754,共5页Journal of Yunnan Agricultural University:Natural Science

基　　金：公益性行业(农业)科研专项(201103004;201103003;200803030);"十二五"国家科技支撑计划(2012BAD14B01);云南省高校科技创新团队支持计划

摘　　要：试验采用橡胶籽油枯、锯末和磷石膏为基本堆肥原料，根据m（橡胶籽油枯）：m（锯末）：m（磷石膏）设置3个处理（处理1：20：7：10，处理2：30：60：10，处理3：40：50：10）研究了堆肥过程中的温度、水分、pH值、C／N比、全氮、磷、钾的变化来说明不同橡胶籽油枯、锯末配比和磷石膏联合堆肥过程。结果表明：高配比的橡胶籽油枯添加量可以增加堆肥高温持续时间，加快堆肥水分下降速度，加快堆肥的腐熟进程。添加10％（质量分数）磷石膏，橡胶籽油枯和锯末联合堆肥结束后，pH稳定在6．0—6．5之间。处理2和处理3的全氮、全磷的含量显著高于处理1的全氮和全磷的含量（P〈0．05），而处理2和处理3之间没有显著差异（P〉0．05），处理1，2，3处理问全钾的含量没有显著的差异（P〉0．05）。Rubber seed oil cake, sawdust and phosphogypsum were as the basic composting raw materials at this experiment. Three treatments （treatment 1 ： 20% rubber seed oil cake ＋ 70% sawdust ＋ 10% phosphogypsum, treatment 2： 30% rubber seed oil cake ＋ 60% sawdust ＋ 10% phosphogypsum, treatment 3 ： 40% rubber seed oil cake ＋ 50% sawdust ＋ 10% Phospho- gypsum） were designed, and the changes of temperature, moisture content, pH, C/N ratio, total nitrogen, total phosphorus, and total potassium were studied to illustrate co-composting process of the different combination of rubber seed oil cake, sawdust and phosphogypsum. The results showed that a higher ratio of rubber seed oil cake dosage could increased high temperature dura tion, decreased moisture content, and improved eomposting process after the end of the compos ring. After adding 10% （mass fraction） phosphogypsum, the pH of composting stabilized at between 6.0 and 6.5. Total nitrogen, total phosphorus content of treatment 2 and treatment 3 were significantly higher than that of treatment 1, while there were no significant differences betweentreatment 2 and treatment 3, there were no significant differences of total potassium among treat- ment 1, treatment 2 and treatment 3.

关 键 词：橡胶籽油枯 锯末 磷石膏 堆肥 养分变化 

分 类 号：S141.4[农业科学—肥料学]