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| 有机肥对油菜硝酸盐含量和土壤盐分累积的影响 | |
| 引用本文： | 刘杏认,任建强,刘建玲.有机肥对油菜硝酸盐含量和土壤盐分累积的影响[J].土壤通报,2006,37(5):920-923. |
| 作者姓名： | 刘杏认 任建强 刘建玲 |
| 作者单位： | 1. 中国科学院,地理科学与资源研究所,北京,100101 2. 中国农业大学,资源与环境学院,北京,100094;中国农业科学院,农业资源与农业区划研究所,北京,100081 3. 河北农业大学,资源与环境学院,河北,保定,071001 |
| 基金项目： | 河北省自然科学基金;河北省科技攻关项目 |
| 摘 要： | 探讨了不同C/N的有机肥对油菜生物量、硝酸盐含量以及土壤EC的影响。结果表明:施用低量氮肥,增施M1能够增加油菜的生物量,硝酸盐含量无显著变化;增施M2、M3,能够降低油菜生物量和硝酸盐含量。当N用量为N0.067g kg-1土时(300kg hm-2),增施M1,油菜生物量和硝酸盐含量无显著变化;增施M2、M3时,显著降低生物量和硝酸盐含量。施用高氮肥,增施三种有机肥显著增加油菜生物量,硝酸盐含量无显著变化。三种不同C/N的有机肥在低量氮肥时对土壤EC的影响不显著,在高氮量时,增施M1能够增加土壤EC,增施M2、M3能够降低土壤EC。 |
| 关 键 词： | 油菜 有机肥 硝酸盐 氮肥 土壤EC |
| 文章编号： | 0564-3945(2006)05-0920-04 |
| 修稿时间： | 2005年7月19日 |
Effects of Manure on Nitrate Accumulation in Rape and Salt Accumulation in Soil |
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| LIU Xing-ren,REN Jian-qiang,LIU Jian-ling.Effects of Manure on Nitrate Accumulation in Rape and Salt Accumulation in Soil[J].Chinese Journal of Soil Science,2006,37(5):920-923. | |
| Authors: | LIU Xing-ren REN Jian-qiang LIU Jian-ling |
| Abstract: | The biomass and the nitrate of rape were affected by the doses of N fertilizer and different manure.The results showed that the biomass of rape increased with the application of M_1 together with low dose of nitrogen fertilizer.The nitrate content did not change considerably.The biomass and the nitrate content of rape was decreased by applying M_2 and M_3 with low dose of nitrogen fertilizer.When the dose of nitrogen fertilizer was 0.067N g kg~(1),there was no obvious difference on the biomass and nitrate content by applying M_1,but the biomass of rape and the nitrate content decreased by applying M_2 and M_3.Under higher dose of the nitrogen fertilizer,the biomass of rape increased and the nitrate content did not change significantly by applying M_1,M_2 and M_3.There was no significant effect on soil EC by applying the different manures together with low dose of nitrogen fertilizer.Soil EC increased by applying M_1 together with high dose of nitrogen fertilizer,but Soil EC decreased by applying M_2 and M_3 together with high dose of nitrogen fertilizer. |
| Keywords: | Rape Manure Nitrate Nitrogen Soil EC |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |