| 李东洁,刘树庆,李 鹏,赵同科,张成军,张丽光.高肥料投入条件下不同污泥用量对油菜生长及品质的影响[J].农业环境科学学报,2013,32(9):1752-1757. |
| 高肥料投入条件下不同污泥用量对油菜生长及品质的影响 |
| The Effects of Different Sewage Sludge Application on Rapeseed Growth and Quality Under High Fertilizer Input |
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| DOI：10.11654/jaes.2013.09.007 |
| 中文关键词: 城市污泥 油菜 产量 品质 |
| 英文关键词: urban sludge rape fresh weight quality |
| 基金项目: |
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| 摘要点击次数: 3056 |
| 全文下载次数: 2966 |
| 中文摘要: |
| 通过盆栽试验，研究高肥料投入条件下，不同污泥施用量对油菜生长及品质的影响。试验设计为不施肥空白对照（CK）、常规施肥（CF）、施用城市污泥减量替代磷肥（SL1）、施用城市污泥等量替代磷肥（SL2）、施用城市污泥高量替代磷肥（SL3）5个处理，重复4次。研究结果显示，适宜的污泥用量可以显著提高油菜产量和根重，并能降低植株体内硝酸盐含量，污泥处理较常规施肥处理产量增加10.12%~55.36%，地上部植株硝酸盐含量降低10.39%~20.57%。但在提高油菜还原型Vc、全氮、全钾含量方面效果不明显。 |
| 英文摘要: |
| Sewage sludge contains organic matter, nitrogen, phosphorus and other plant nutrient elements. As a result, it may modify the soil properties and improve plant growth. The objective of this study was to examine if different sewage sludge applications, each of which constitutes high fertilizer input, affects rapeseed growth, vitamin C, nitrate, total nitrogen, total phosphorous and total potassium. Pot experiments were conducted with five treatments, replicated 4 times. The treatments included control without fertilization（CK）, conventional chemical fertilization（CF）, sewage sludge amount with phosphate equivalent to 70, 100, and 130% of conventional chemical fertilizer application（SL1, SL2, SL3, respectively）. Results indicated the substitution of chemical fertilizer with sewage sludge based on phosphorous contents increased the yield by 10% to 55%, decreased the nitrate content in plant by 10% to 21% and moderately increased root biomass, as compared with the conventional fertilization treatment. However, effects on rapeseed vitamin C, total nitrogen and potassium contents were not obvious. The results obtained from this study indicated that sewage sludge improved the yield and quality of rapeseed. |
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