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[1]郝鲜俊,洪坚平,乔志伟.沼液对甘蓝连作土壤生物学性质的影响[J].应用与环境生物学报,2011,17(03):384-387.[doi:10.3724/SP.J.1145.2011.00384]
 HAO Xianjun,HONG Jianping,QIAO Zhiwei.Effect of Biogas Slurry on Biological Properties of Cabbage Continuous Cropping Soil[J].Chinese Journal of Applied & Environmental Biology,2011,17(03):384-387.[doi:10.3724/SP.J.1145.2011.00384]
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沼液对甘蓝连作土壤生物学性质的影响()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
17卷
期数:
2011年03期
页码:
384-387
栏目:
研究论文
出版日期:
2011-06-24

文章信息/Info

Title:
Effect of Biogas Slurry on Biological Properties of Cabbage Continuous Cropping Soil
作者:
郝鲜俊洪坚平乔志伟
(山西农业大学资源环境学院 太谷 030801)
Author(s):
HAO Xianjun HONG Jianping QIAO Zhiwei
(College of Environment and Resources, Shanxi Agricultural University, Taigu 030801, Shanxi,China)
关键词:
沼液甘蓝连作土壤微生物土壤酶土壤养分
Keywords:
Keywords biogas slurry cabbage continuous cropping soil microorganism soil enzyme soil nutrient
分类号:
S154
DOI:
10.3724/SP.J.1145.2011.00384
文献标志码:
A
摘要:
以施用化肥225 kg/hm2为对照,设置两种不同的沼液用量(以纯氮计):沼液I(168 kg/hm2)和沼液II(225 kg/hm2),通过连续3 a的甘蓝种植试验,研究沼液对甘蓝连作土壤微生物区系、土壤酶活性以及土壤养分与土壤酶活性之间的相关性. 结果表明:1)施用沼液显著改善了连作土壤的微生物区系,溶磷细菌、解钾细菌、氨化细菌、固氮菌和放线菌的数量显著增加;同时抑制了真菌的富集. 两种不同用量的沼液处理较化肥处理的土壤细菌/真菌(B/F)值分别提高了142.7%和202.3%. 2)在225 kg/hm2等氮水平下,施用沼液显著提高了土壤的蔗糖酶、磷酸酶和蛋白酶活性,较之化肥处理分别提高了63.96%、137.61%和139.66%;同时显著降低了土壤过氧化氢酶和多酚氧化酶活性. 3)土壤养分与土壤酶活性相关性分析表明,有机质含量与土壤脲酶、磷酸酶、蔗糖酶和蛋白酶活性呈显著正相关,与过氧化氢酶活性呈显著负相关,而与多酚氧化酶活性无明显相关性;磷酸酶活性与土壤速效磷含量呈显著正相关;蛋白酶活性与土壤碱解氮、全氮含量呈显著正相关. 表4 参24
Abstract:
The effects of biogas slurry on soil microflora and enzymatic activity, and the correlation between soil enzyme activity and soil nutrient factors in cabbage continuous cropping soil for three years were studied. The control group was treated by chemical fertilizer and the experimental groups were treated by two concentrations (168 kg/hm2 and 225 kg/hm2) of biogas slurry. The results showed that: 1) The soil microflora was significantly improved after application of slurry. The amounts of phosphobacteria, silicate bacteria, ammonifying bacteria, N-fixation bacteria and actinomycetes increased, but the accumulation of fungi was significantly inhibited. Compared with the control, the bacteria and fungi ratios (B/F) of the soils treated by biogas slurry of 168 kg/hm2 and 225 kg/hm2 increased by 142.7% and 202.3%, respectively. 2) At the same level of 225 kg/hm2, the activities of soil invertase, phosphatase and protease of the experimental groups increased by 63.96%, 137.61% and 139.66%, respectively, while the activities of soil catalase and polyphenol oxidase decreased significantly compared with the control. With the increase of biogas slurry application, the activity of soil phosphatase increased significantly. 3) The correlation analysis between soil enzyme activities and soil nutrient factors showed that organic matter (OM) content of soil was positively correlative with soil urease, phosphatase, invertase and protease activities, but negatively correlative with catalase activity and had no significant correlation with polyphenol oxidase activity. The activity of phosphatase was positively correlative with soil available phosphorus content. The activity of protease was positively correlative with alkali-hydrolyzable N and total N contents. Tab 4, Ref 24

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备注/Memo

备注/Memo:
亚洲开发银行农业废弃物利用特别研究项目和高等学校博士学科点专项科研基金(No.20091403110003)资助
更新日期/Last Update: 2011-06-23