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| 肥料增效剂对水稻产量、土壤及地表水中无机氮的短期效应 | |
| 引用本文： | 吴海勇,李明德,刘琼峰,曾艳,黄科延. 肥料增效剂对水稻产量、土壤及地表水中无机氮的短期效应[J]. 湖南农业科学, 2012, 0(7): 47-50,54 |
| 作者姓名： | 吴海勇 李明德 刘琼峰 曾艳 黄科延 |
| 作者单位： | 1. 湖南省土壤肥料研究所,湖南长沙,410125 2. 株洲市农业局,湖南株洲,412000 3. 长沙县干杉乡农技站,湖南长沙,410200 |
| 基金项目： | 国家"十二五"科技支撑计划项目 |
| 摘 要： | 采用大田试验,研究了3种肥料增效剂与化肥减量配施对水稻产量、稻田土壤和水体中铵态氮及硝态氮动态变化的影响。试验结果表明,通过配施肥料增效剂,在保证水稻产量前提下,可以减少10%~15%的肥料用量;水稻生长前期,3种肥料增效剂均能一定程度地降低土壤中硝态氮含量,但在水稻生长后期对土壤、水体中铵态氮和硝态氮的短期效益不明显。 |
| 关 键 词： | 肥料增效剂 水稻产量 土壤 地表水 铵态氮 硝态氮 |
Short-term Effects of Fertilizer Synergists on Rice Yield and Inorganic Nitrogen in Paddy Soil and Surface Water |
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| WU Hai-yong , LI Ming-de , LIU Qiong-feng , ZENG Yan , HUANG Ke-yan. Short-term Effects of Fertilizer Synergists on Rice Yield and Inorganic Nitrogen in Paddy Soil and Surface Water[J]. Hunan Agricultural Sciences, 2012, 0(7): 47-50,54 | |
| Authors: | WU Hai-yong LI Ming-de LIU Qiong-feng ZENG Yan HUANG Ke-yan |
| Affiliation: | 1.Hunan Institute of Soil and Fertilizer,Changsha 410125,PRC;2.Zhuzhou Municipal Agricultural Bureau, Hunan 412000,PRC;3.Agrotechnical Station of Gansha County,Hunan 410132,PRC) |
| Abstract: | The field experiment was conducted to study the effects of combined application of three fertilizer synergists with reduction fertilizers on rice yield and ammonium nitrogen and nitric nitrogen in paddy soil and surface water.The results indicated that application of fertilizer synergists could save fertilizer rate by 10% to 15% with the precondition of ensuring the rice yield;the three fertilizer synergists can decrease the content of nitrate nitrogen in paddy soil for a certain level in the early growth period of rice,but there was no significant short-term effect on ammonium nitrogen and nitrate nitrogen in paddy soil and surface water in the later growth period of rice. |
| Keywords: | fertilizer synergist rice yield soil surface water ammonium nitrogen nitrate nitrogen |
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