| 烤烟连作对土壤养分的影响 |
| |
| 引用本文： | 王连君,谷思玉.烤烟连作对土壤养分的影响[J].烟草科技,2004(9):40-42. |
| |
| 作者姓名： | 王连君 谷思玉 |
| |
| 作者单位： | 1. 黑龙江省烟草公司,哈尔滨市中山路175号,150001
2. 东北农业大学资源环境学院,哈尔滨市香坊区木材街59号,150030 |
| |
| 基金项目： | 黑龙江烟草公司资助项目"烤烟重茬障碍因子的研究与解决对策"的一部分(990002)。 |
| |
| 摘 要： | 分析了烤烟不同连作年限的土壤养分含量。结果表明烤烟连作1～2年的烟田土壤养分与正茬比较变化不大,而连作2年后,土壤中全氮、速效钾含量减少,全磷、碱解氮和速效磷含量增加,有机质含量下降,pH值有所升高;连作3年和4年时烤烟各生育期的土壤全磷和速效磷含量均处于较高水平,显著高于其它3个茬口,连作4年的土壤缓效钾含量高于其它茬口。
|
| 关 键 词： | 烤烟 连作 土壤养分 |
| 文章编号： | 1002-0861(2004)09-0040-03 |
| 修稿时间： | 2003年6月13日 |
Effect of Succession Cropping of Flue-cured Tobacco on Soil Nutrients |
| |
| WANG LIAN-JUN.Effect of Succession Cropping of Flue-cured Tobacco on Soil Nutrients[J].Tobacco Science & Technology,2004(9):40-42. |
| |
| Authors: | WANG LIAN-JUN |
| |
| Abstract: | The nutrients in the soils with different years of succession cropping of flue-cured tobacco were analyzed. The results showed that the nutrients in the soil after one to two years succession cropping of flue-cured tobacco differed little from that of normal crops, the contents of total N, available K and organic matter were reduced after three or four years succession cropping, while the contents of total P, alkali-hydrolyzable N, available P and pH value were increased, and the contents of total N and available P were obviously higher. After 4 years of succession cropping, the content of slow-release K was higher. |
| |
| Keywords: | Flue-cured tobacco Succession cropping Soil nutrients |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
