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| 太湖地区稻麦轮作系统中氮肥效应的研究 | |
| 引用本文： | 晏娟,尹斌,张绍林,沈其荣,朱兆良. 太湖地区稻麦轮作系统中氮肥效应的研究[J]. 南京农业大学学报, 2009, 32(1) |
| 作者姓名： | 晏娟 尹斌 张绍林 沈其荣 朱兆良 |
| 作者单位： | 1. 南京农业大学资源与环境科学学院,江苏南京210095;中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏南京210008 2. 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏南京,210008 3. 南京农业大学资源与环境科学学院,江苏南京,210095 |
| 基金项目： | 江苏省重大科技攻关项目 |
| 摘 要： | 以太湖地区的常熟市为试验区,选择不同土壤类型的农田,设置不同氮肥水平田间小区试验与微区试验,对稻麦轮作下作物产量的氮肥效应及田间适宜施氮量进行了研究.结果表明,无论是水稻,还是小麦,随施氮苗增加,作物氮肥农学利用效率均下降.2年多点田间试验结果显示,该地区水稻的区域平均适宜施氮量为(176±24.2) kg·hm-2,小麦为(228±27.1) kg·hm-2.研究结果还表明,在该地区大义黄泥士上,水稻(晶种4007) 兼顾生产、生态和经济效益比较合理的施氮苗为171～204 kg·hm-2. |
| 关 键 词： | 氮肥 适宜施氮量 水稻 小麦 |
Studies on the nitrogen fertilizer application of rice-wheat rotation system in Taihu Lake Region |
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| YAN Juan,YIN Bin,ZHANG Shao-lin,SHEN Qi-rong,ZHU Zhao-liang. Studies on the nitrogen fertilizer application of rice-wheat rotation system in Taihu Lake Region[J]. Journal of Nanjing Agricultural University, 2009, 32(1) | |
| Authors: | YAN Juan YIN Bin ZHANG Shao-lin SHEN Qi-rong ZHU Zhao-liang |
| Affiliation: | 1.College of Resources and Environmental Sciences;Nanjing Agricultural University;Nanjing 210095;China;2.State Key Laboratory of Soil and Sustainable Agriculture;Institute of Soil Science;Chinese Academy of Sciences;Nanjing 210008;China |
| Abstract: | To investigate the effect of N application rate on crop yield and the optimal nitrogen fertilizer application rates to rice-wheat rotation system in Taihu Lake Region,several field experiments and micro-plot experiments were conducted with different N application rates under different soil species and crop cultivars in Changshu City.The results obtained were as follows.No matter rice or wheat,agronomic efficiency of applied N decreased rapidly with the increased N rates.The results from five field experimen... |
| Keywords: | nitrogen fertilizer optimal nitrogen application rate rice wheat |
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