添加氮素化合物对天竺桂废弃枝叶分解的影响
发布时间：2018-12-05 16:17
【摘要】：采用添加氮素化合物的方法对天竺桂废弃枝叶进行促进分解试验。结果表明,废弃枝叶分解过程中的真菌个体数量随分解时间的不同而变化,不同处理间的真菌个体数量无显著差异,各处理不同分解时间真菌个体数量存在极显著差异。真菌类群数量随分解时间的不同而变化,总体上随废弃枝叶分解进程呈增加趋势。在废弃枝叶分解试验中共分离出16个真菌类群,其中黑灰球菌属(Bovista)、共头霉属(Syncephalastrum)、刺座霉属(Volutella)、小克银汉霉属(Cunninghamella)和锁霉属(Itersonilia)为优势真菌类群。在枝叶分解初期(0~30 d)p H值增高(p H值8.22~8.88),使得微生物在高温分解阶段拥有高的分解能力,随后总体上呈下降趋势。堆料含水量相较于初始含水量变化不大,堆料的含水量保持在56%~71%之间,使微生物能保持较大的分解能力。添加碳酸氢铵和尿素处理后7~14 d的堆体温度维持在50~56℃之间,高于水处理的堆体温度(46~51.5℃),表明堆体处在枝叶分解的高温快速发酵阶段,添加碳酸氢铵和尿素处理后堆料的微生物活性更强。综合试验结果表明,在天竺桂废弃枝叶分解过程中添加氮素化合物,可增强分解微生物的活性,对废弃枝叶的分解有一定的促进作用。
[Abstract]:The method of adding nitrogen compounds was used to promote the decomposition of waste branches and leaves of Tianzhu and cinnamon. The results showed that the number of fungal individuals in the decomposition process of abandoned branches and leaves varied with the decomposition time, but there was no significant difference in the number of fungi individuals among different treatments. The number of fungi groups varied with the decomposition time, and increased with the decomposition process of abandoned branches and leaves. A total of 16 fungi groups were isolated from the decomposition test of abandoned branches and leaves. The dominant fungi groups were (Bovista), (Syncephalastrum), (Cunninghamella) and (Itersonilia), respectively. In the early stage of branch and leaf decomposition (0 ~ 30 d) p H), the (p H value increased 8.22 ~ 8.88, which made the microorganism have high decomposition ability at the stage of high temperature decomposition, and then showed a general downward trend. Compared with the initial water content, the water content of the heap material is not changed much, and the water content of the pile material is kept between 56% and 71%, which makes the microorganism keep a large decomposition ability. The temperature of the heap treated with ammonium bicarbonate and urea for 7 ~ 14 days was between 50 ~ 56 鈩，
本文编号：2365277
[Abstract]:The method of adding nitrogen compounds was used to promote the decomposition of waste branches and leaves of Tianzhu and cinnamon. The results showed that the number of fungal individuals in the decomposition process of abandoned branches and leaves varied with the decomposition time, but there was no significant difference in the number of fungi individuals among different treatments. The number of fungi groups varied with the decomposition time, and increased with the decomposition process of abandoned branches and leaves. A total of 16 fungi groups were isolated from the decomposition test of abandoned branches and leaves. The dominant fungi groups were (Bovista), (Syncephalastrum), (Cunninghamella) and (Itersonilia), respectively. In the early stage of branch and leaf decomposition (0 ~ 30 d) p H), the (p H value increased 8.22 ~ 8.88, which made the microorganism have high decomposition ability at the stage of high temperature decomposition, and then showed a general downward trend. Compared with the initial water content, the water content of the heap material is not changed much, and the water content of the pile material is kept between 56% and 71%, which makes the microorganism keep a large decomposition ability. The temperature of the heap treated with ammonium bicarbonate and urea for 7 ~ 14 days was between 50 ~ 56 鈩，
本文编号：2365277
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