Soil microbial biomass and activities in a Japanese Andisol as affected by controlled release and application depth of urea
文献类型：期刊论文
| 作者 | Chu, HY; Hosen, Y; Yagi, K; Okada, K; Ito, O |
| 刊名 | BIOLOGY AND FERTILITY OF SOILS
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 42期号:2页码:89-96 |
| 关键词 | application depth of N fertilizer controlled release urea dehydrogenase activity microbial biomass nitrification activity |
| ISSN号 | 0178-2762 |
| DOI | 10.1007/s00374-005-0011-3 |
| 通讯作者 | Hosen, Y() |
| 英文摘要 | This experiment was conducted in maize field plots to study the effects of controlled release and application depth of urea on soil microbial biomass and activities at two depths of surface soil of a Japanese Andisol from June to September, 2001. Three N amendment treatments and a Control were included in this experiment: deep application (8 cm) of controlled release urea; deep application (8 cm) of conventional urea; surface application of conventional urea; Control, without N application. Prior to this experiment, the field plots received the same N fertilizer treatments for two consecutive years under maize/barley rotation. Soil microbial biomass, dehydrogenase and nitrification activities exhibited great vertical and temporal variations during the maize growth season, and the microbial biomass was significantly correlated to soil water-filled pore space (p < 0.01). N fertilization did not significantly affect the microbial biomass, but greatly increased the dehydrogenase and nitrification activities. The increase in the microbial activities following N fertilization was not attributed to the increase in microbial biomass but to the increase in intrinsic microbial activities. Controlled release urea was found to continuously affect the dehydrogenase activity over a shorter distance, while conventional urea could greatly increase the enzyme activity for a shorter period of time. Both controlled release and deep application of urea had potentials to reduce the nitrification activity and suggested that the nitrate production might be decreased in 0-10 cm surface soil. Deep application of urea increased aboveground N uptake by maize and then the recovery rate of N fertilizer, whereas controlled release of urea greatly increased grain yield and N uptake by grain. |
| 收录类别 | SCI |
| WOS关键词 | N-15 TRACER TECHNIQUE ; DAIRY SHED EFFLUENT ; ORGANIC-MATTER ; COATED UREA ; BIOLOGICAL PROPERTIES ; NITROGEN-FERTILIZER ; CHEMICAL FERTILIZER ; AMMONIUM FERTILIZER ; AGRICULTURAL SOILS ; ENZYME-ACTIVITIES |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000232840700002 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558454 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Hosen, Y |
| 作者单位 | 1.Int Rice Res Inst, Manila, Philippines 2.Japan Int Res Ctr Agr Sci, Tsukuba, Ibaraki 3058686, Japan 3.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 4.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan 5.Natl Agr Res Ctr, Tsukuba, Ibaraki 3058666, Japan |
| 推荐引用方式 GB/T 7714 | Chu, HY,Hosen, Y,Yagi, K,et al. Soil microbial biomass and activities in a Japanese Andisol as affected by controlled release and application depth of urea[J]. BIOLOGY AND FERTILITY OF SOILS,2005,42(2):89-96. |
| APA | Chu, HY,Hosen, Y,Yagi, K,Okada, K,&Ito, O.(2005).Soil microbial biomass and activities in a Japanese Andisol as affected by controlled release and application depth of urea.BIOLOGY AND FERTILITY OF SOILS,42(2),89-96. |
| MLA | Chu, HY,et al."Soil microbial biomass and activities in a Japanese Andisol as affected by controlled release and application depth of urea".BIOLOGY AND FERTILITY OF SOILS 42.2(2005):89-96. |
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来源：南京土壤研究所
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