再论聚土免耕垄的中层培肥
文献类型：期刊论文
| 作者 | 陈实; 李同阳; 张先婉 |
| 刊名 | 山地研究
 |
| 出版日期 | 1996 |
| 卷号 | 14期号:S1页码:55-58 |
| 关键词 | 聚土免耕 土壤肥力 层次性变化 中层培肥 |
| ISSN号 | 1000-002X |
| 其他题名 | A FURTHER STUDY ON SUB-SURFACE LAYERS AMELIORATION UNDER SNTRCS |
| 通讯作者 | 陈实 |
| 合作状况 | 其它 |
| 中文摘要 | 聚土免耕垄的土壤结构性变化主要表现在中上层,以中层更突出.而土壤养分状况、水分状况、生物活性及有机无机复合胶体的变化却主要表现在中下层.多数肥力指标均显示中层的改善为最大.这与有机肥深施至中层有关.聚土免耕垄的培肥重点是中层. |
| 英文摘要 | Seasonal No-Tillage Ridge Cropping System (SNTRCS)significantly ameliorated soil structure, especially improving the soil structure in sub-surface soils (15-35cm). Compared to the controls, SNTRCS of increasing soil aggregation including water-stable structure aggregates in top soils (0-15cm)and sub-surface soils (15-35cm).The characters of organo-inorganic complex also indicated the SNTRCS increased complex quantity by 45. 0% ,complex degree by 3. 6% within 15-35cm soil layers compared to the controls. According to successive measurements of soil bulk density within ridges for 10a (1985-1991),the soil bulk density within sub-surface layers (15-35cm) deceased and has remained less than 1. 3g/cm3 for l0a.An analysis of micromorphology on soils under SNTRCS management showed that the aeration porosity of 1. 0-0, 2mm was increased 7. 1%-21. 2% in surface layers (0-15cm) and 11. 8%-16. 2% in sub-surface layers (15-35cm) compared to the controls.According to measurements of soil nitrogen, organic matter, soil enzyme activities and microbes,SNTRCS significantly increased soil N nutrition and biological activities in sub-surface layer (15-35cm) and sub-soil layer ( 35-50cm ), but little differences in top layers (0-15cm). Total N,organic matter,total microbes,aerobic fiber-decomposing bacteria,urease activity, alkaline phosphatase, invertase were increased by 20%-80% or more in the subsurface layer and sub-soil layer. This improvement of the nutrition status in the sub-surface layers and sub-soils is significant for crop growth during it’ s reprodutive period.On the basis of mentioned above, sub-surface layers amelioration is a very important function in SNTRCS. |
| 学科主题 | S158 |
| 收录类别 | CSCD ; 北大中文核心 |
| 语种 | 中文 |
| CSCD记录号 | CSCD:522139 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/1473]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） |
| 作者单位 | 中国科学院、水利部成都山地灾害与环境研究所 |
| 推荐引用方式 GB/T 7714 | 陈实,李同阳,张先婉. 再论聚土免耕垄的中层培肥[J]. 山地研究,1996,14(S1):55-58. |
| APA | 陈实,李同阳,&张先婉.(1996).再论聚土免耕垄的中层培肥.山地研究,14(S1),55-58. |
| MLA | 陈实,et al."再论聚土免耕垄的中层培肥".山地研究 14.S1(1996):55-58. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
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。