Nano-selenium biological organic fertilizer and preparation method thereof

The invention discloses a nano-selenium biological organic fertilizer and a preparation method thereof. The nano-selenium biological organic fertilizer is prepared from chicken manure, straw, selenium-enriched bentonite, turfy soil, nano selenium dioxide, sodium selenite, sodium bicarbonate, brown sugar, urea, a urease inhibitor and a compound microbial agent. The preparation method comprises the steps of weighing, mixing, fermenting and the like. The nano-selenium biological organic fertilizer and the preparation method thereof have the advantages that the cost is low, the preparation process is simple, use is convenient, and the selenium-enriching effect is good. 本发明公开了种纳米硒生物有机肥及其制备方法，由鸡粪、秸秆、富硒膨润土、草炭土、纳米二氧化硒、亚硒酸钠、碳酸氢钠、红糖、尿素、尿素酶抑制剂和复合菌剂制备而成，制备方法包括称量、混合和发酵等步骤；本发明的优点在于：成本低，制备工艺简单，使用方便，富硒效果好。