| Upland rice seedling wilt and microbial biomass and enzyme activities of compost-treated soils | |
| Yin, Shixue2,3; Dong, Yuanhua2; Xu, Yangchun1; Huang, Qiwei1; Shen, Qirong1 | |
| 刊名 | BIOLOGY AND FERTILITY OF SOILS
 |
| 2011-04-01 | |
| 卷号 | 47期号:3页码:303-313 |
| 关键词 | Upland rice seedling wilt Compost Soil enzyme activity Soil fumigation |
| ISSN号 | 0178-2762 |
| DOI | 10.1007/s00374-010-0537-x |
| 通讯作者 | Shen, Qirong(shenqirong@njau.edu.cn) |
| 英文摘要 | Rice seedling wilt frequently occurs in upland nurseries under well-aerated conditions and causes considerable economic loss. Whether the wilt is pathogenic or edaphic is not known. We hypothesize the use of composts to alleviate seedling wilt. The severity level of upland rice seedling wilt was significantly (p < 0.05) positively correlated with soil pH (r = 0.499; n = 19), but negatively correlated with soil organic matter (r = -0.745), microbial biomass C (r = -0.669), activities of dehydrogenase (r = -0.589), arylsulfatase (r = -0.272), fluorescein diacetate hydrolysis (r = -0.466), and beta-glucosidase (r = -0.280). Correlations between severity level and soil inorganic N and exchangeable potassium K were not significant. Contents of Fe, Zn, Cu, and Mn in healthy seedlings were not significantly (p < 0.05) different from those in infected seedlings. These data suggest that seedling wilts are not associated with nutrient constraints. Compost amendment at the rate of 3% or above in pot experiments significantly improved seedling growth and reduced the wilt symptoms. Field trials further showed that aboveground weight of seedlings in compost-amended treatment ranged from 11.5 to 14.9 mg per plant, significantly higher than the range from 6.38 to 12.1 mg per plant in the control treatment; in addition to rice growth compost significantly increased microbial biomass and enzyme activities of soils. Soil fumigation significantly increased rice growth and alleviation symptoms in 11 out of 19 soils, suggesting the involvement of pathogens. It is concluded that upland seedling wilt is a pathogen-associated disease. Probably high soil pH and low soil biochemical activities may favor pathogen activities. |
| 收录类别 | SCI |
| WOS关键词 | ROOT-ROT ; FUSARIUM-WILT ; TAKE-ALL ; DISEASE SUPPRESSION ; ORGANIC-MATTER ; QUALITY ; WHEAT ; INDICATORS ; PATHOGENS ; PYTHIUM |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000288251700007 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2559078 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Shen, Qirong |
| 作者单位 | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 3.Yangzhou Univ, Coll Environm Sci & Engn, Yangzhou 225009, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Shixue,Dong, Yuanhua,Xu, Yangchun,et al. Upland rice seedling wilt and microbial biomass and enzyme activities of compost-treated soils[J]. BIOLOGY AND FERTILITY OF SOILS,2011,47(3):303-313. |
| APA | Yin, Shixue,Dong, Yuanhua,Xu, Yangchun,Huang, Qiwei,&Shen, Qirong.(2011).Upland rice seedling wilt and microbial biomass and enzyme activities of compost-treated soils.BIOLOGY AND FERTILITY OF SOILS,47(3),303-313. |
| MLA | Yin, Shixue,et al."Upland rice seedling wilt and microbial biomass and enzyme activities of compost-treated soils".BIOLOGY AND FERTILITY OF SOILS 47.3(2011):303-313. |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论