The difference of potassium dynamics between yellowish red soil and yellow cinnamon soil under rapeseed (Brassica napus L.)-rice (Oryza sativa L.) rotation
文献类型：期刊论文
| 作者 | Li, Xiaokun1; Lu, Jianwei1; Wu, Lishu1; Chen, Fang2 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2009-07-01 |
| 卷号 | 320期号:1-2页码:141-151 |
| 关键词 | Non-root zone Potassium Rhizobox Rhizosphere Root zone Soil |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-008-9879-7 |
| 英文摘要 | To increase the use efficiency of potassium (K) fertilizer, special attention was paid to the dynamics of soil K in the root zone and non-root zone. Difference in K dynamics between yellowish red soil and yellow cinnamon soil under rapeseed (Brassica napus L.)rice (Oryza sativa L.) rotation was studied using a rhizobox system. Results showed that soil water soluble K (Sol-K) and exchangeable K (Ex-K) in the root zone of both soils were reduced in the early stage of rapeseed growth. Along with plant growth and K uptake, soil Sol-K in the inner (0-20 mm to root zone), middle (20-40 mm) and outer (40-60 mm) compartments of the non-root zone of yellowish red soil migrated towards the root zone. As a result, soil Ex-K was transformed into Sol-K. The changes in soil Sol-K and Ex-K in the non-root zone of yellow cinnamon soil were similar to yellowish red soil, and soil non-exchangeable K (Nonex-K) in the root zone also decreased significantly. In the early stage of rice growth, waterlogging promoted diffusion of soil Sol-K from non-root zone to root zone and transformation of Ex-K into Sol-K. Along with the growth of rice and K uptake, soil Ex-K in each compartment of yellowish red soil decreased significantly. Soil Sol-K and Ex-K in the yellow cinnamon soil declined to a certain extent, and then remained unchanged, while soil Nonex-K kept on decreasing. It revealed that the plants first absorbed K in the root zone, of which K reserve was replenished by a gradual diffusion of K from the non-root zone. The closer to the root zone, the greater the contribution to K uptake by plants. Within one rotation cycle, Ex-K and Sol-K in yellowish red soil were the main forms of K available to the plants, and little Nonex-K could be absorbed. However, in the yellow cinnamon soil, Nonex-K was the main form of K available to the plants, followed by Ex-K and Sol-K. |
| 资助项目 | Natural Science Foundation of China[40571090] ; International Plant Nutrition Institute |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000266828500008 |
| 出版者 | SPRINGER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1026]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Lu, Jianwei |
| 作者单位 | 1.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Hubei Province, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaokun,Lu, Jianwei,Wu, Lishu,et al. The difference of potassium dynamics between yellowish red soil and yellow cinnamon soil under rapeseed (Brassica napus L.)-rice (Oryza sativa L.) rotation[J]. PLANT AND SOIL,2009,320(1-2):141-151. |
| APA | Li, Xiaokun,Lu, Jianwei,Wu, Lishu,&Chen, Fang.(2009).The difference of potassium dynamics between yellowish red soil and yellow cinnamon soil under rapeseed (Brassica napus L.)-rice (Oryza sativa L.) rotation.PLANT AND SOIL,320(1-2),141-151. |
| MLA | Li, Xiaokun,et al."The difference of potassium dynamics between yellowish red soil and yellow cinnamon soil under rapeseed (Brassica napus L.)-rice (Oryza sativa L.) rotation".PLANT AND SOIL 320.1-2(2009):141-151. |
入库方式： OAI收割
来源：武汉植物园
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