【作者】 韩永亮；

【导师】 荣湘民；

【作者基本信息】 湖南农业大学 ， 植物营养学， 2012， 硕士

【摘要】 为生猪养殖垫料废弃物肥料化利用提供科学依据,本文采用堆肥结合室内分析的方法研究了不同的初始C/N比、含水量以及不同菌剂添加量对堆肥中有机物质降解的影响,并采取田间小区试验探讨了其堆肥对空心菜和苋菜的叶绿素含量、根系活力、根系总吸收面积和活跃吸收面积,产量及品质(可溶性糖、维生素C、硝酸盐。粗纤维)的影响,试验主要结果如下：1.初始C/N比为30时,生猪养殖垫料发酵效果最好。经过35d的发酵后,初始C/N比为30的处理,其C/N比下降率分别比初始C/N比为20、25、35的处理提高了47.84%、68.19%、12.70%。但初始C/N比对堆肥中木质素和纤维素的降解影响较小2.初始含水量为55%最有利于生猪养殖垫料的腐熟。经35d发酵后,其C/N比降为最低,与其他处理的差异达到了极显著水平。初始含水量为55%最有利于木质素的降解,初始含水量为75%最有利于纤维素的降解。3.菌剂的添加量对堆肥中物质降解有显著影响,菌剂的添加量为0.2%,对堆肥腐熟的促进作用不明显；菌剂添加量达到0.4%,显著提高C/N的下降率和木质素、纤维素的降解率,继续提高添加量,则效果不增反减。4.施用生猪垫料型有机肥可以提高空心菜和苋菜的叶绿素含量。5.施用生猪垫料型有机肥显著提高蔬菜的根系活力。有机无机配施处理空心菜的根系活力分别比不施肥和纯施化肥处理高24--117%、24.6--74.32%。有机无机配施处理苋菜的根系活力比不施肥高6.3%--9.83%,施用20%有机肥处理苋菜根系活力比纯化肥处理高5.64%。6.施用生猪垫料型有机肥显著提高蔬菜的产量。与不施肥和纯施化肥处理相比,有机无机肥配施处理分别增产39.02%--84.31%、10.04%--32.58%。差异达到了显著或极显著水平。7.生猪垫料型有机肥可以提高蔬菜的Vc和可溶性糖含量,降低硝酸盐含量,对蔬菜的品质有改善作用。更多还原

【Abstract】 In order to provide a scientific basis for fertilizer utilization of pig breeding litter. Composting combined with laboratory analysis method was used to study on effect of different initial C/N ratios, water content and amount of microbial agent on pig breeding litter degeneration of composting. Field plot experiment was conducted to discuss on effect of composting on chlorophyll content, root characteristics (TTC reductive intensity, nitrate reductase activity, total area of absorption and active area of absorption), yield and quality (vitamin C content, soluble sugar content, nitrate content, coarse fibred content) of Ipomoea Aquatica Forsskal and Amaranth, main results were reported as follows:1. The best condition for the degradation is that C/N ration is30.After35days composting, the decrease of the C/N ratio of the group with C/N ratio is30increased47.84%、68.19%、12.70%than the groups which C/N ratios is20.25,35. However, original C/N ratio have little influence on composting of lignin and cellulose.2. The best condition for the degradation is that water content is55%. After35days composting, its C/N ratio decreased most. the significant differences of the C/N ratio decrease were observed between the groups with different water content. The best condition for the degradation of lignin is that water content is55%, The best condition for the degradation of cellulose is that water content is75%.3. The amount of microbial agent have significant effect on the composting of pig breeding litter. the promotion of composting with0.2%agent addition is not obvious; agent adding amount reached0.4%, a significant decline in C/N、lignin and cellulose emerged. continue to increase the amount, the effect is reduced.4. The content of chlorophyll and Photosynthesis of Ipomoea aquatica and amaranth were increased by application of organic fertilizer (composting of pig breeding litter).5. By application of organic fertilizer (composting of pig breeding litter), The TTC reductive intensity of Ipomoea aquatica could been increased by24%-117%and24.6-74.32%than the treatments of No-fertilizer and chemical fertilizer practice.The TTC reductive intensity of amaranth could been increased by6.3%-9.83%and5.64%than the treatments of No-fertilizer and chemical fertilizer practice. 6. Vegetable yield was increased by application of organic fertilizer (composting of pig breeding litter) significantly. Compared with no fertilizer application and pure chemical fertilizer application treatments, vegetable yield was increased by39.02%--84.31%and10.04%--32.58%respectively under organic-inorganic fertilizer suitable application treatment. These differences are significant or highly significant.7. Vc and soluble sugar of vegetable was increased by application of organic fertilizer (composting of pig breeding litter), nitrate content was decreased, and vegetable quality was improved.更多还原