堆肥化过程中无机态氮磷钾养分的有机态转化  

Conversion of the Added Inorganic Nitrogen,Phosphorus and Potassium to Organic Form during Composting Process

作　　者：郝莘政 李振国[1] 王长虹[1] 王国兴[1] 李莹[1] 邓伟[1] 王伟东[1] 

机构地区：[1]黑龙江八一农垦大学生命科学技术学院,大庆163319

出　　处：《黑龙江八一农垦大学学报》2014年第6期68-73,共6页journal of heilongjiang bayi agricultural university

基　　金：国家自然科学基金项目(31270536);国家科技支撑计划项目(2012BAD12B05-3);黑龙江省科技攻关项目(GC12B306);黑龙江省高校科技创新团队项目(2012TD006)

摘　　要：堆肥产品所含作物生长所需的主要营养元素的量较低,提高堆肥中的养分含量对提升堆肥产品商品性意义重大。为了探索解决该问题的有效途径,采用向堆肥中添加无机态营养的方法,通过微生物转化使无机营养有机化,以达到提升堆肥养分含量的目的。试验处理为添加无机养分组(加肥组)和不添加无机养分的对照组(CK),采用条垛式堆肥工艺,进行了62 d堆肥发酵。结果显示,无机氮、无机磷和无机钾的转化率分别为50.3%、23.4%和22.9%,氮、磷和钾的损失率分别为35.6%、10.1%和17.1%。研究表明在堆肥发酵起始时加入无机营养元素参与整个发酵过程后,添加的无机营养可以部分转化为有机营养,提高堆肥产品养分含量。The nutrients of nitrogen （N）, phosphorus （P） and potassium （K） are necessary elements for the growth of crops, and the contents are low in the compost of products. Increasing the content of nutrients has the direct relation with the worth of compost products. To solve the problem effectively, the inorganic nutrient elements were added by the conversion of microorganisms. The static composting experiments were carried out to study the nutrient elements contents with two treatments. Compared to the control treatment, the contents of total N, total P and total K were significantly increased when the inorganic nutrient were added after eomposting of 62 days. The organic conversion ratio of inorganic N, P and K were 50.3%, 23.4% and 22.9% respectively, and the lose rate were 35.6%, 10.1% and 17.1% respectively. The results showed that the added inorganic nutrients were converted to the partly organic nutrients and increased the nutrients contents of compost products during the composting.

关 键 词：堆肥 有机营养 无机营养 无机营养有机化 

分 类 号：TQ440[化学工程—化学肥料工业]