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| 安徽省沿江地区直播油菜钾肥效应研究 | |
| 引用本文： | 武际,胡润,张祥明,许征宇,张晓玲,郭熙盛,鲁剑巍.安徽省沿江地区直播油菜钾肥效应研究[J].中国农学通报,2011,27(33):104-107. |
| 作者姓名： | 武际 胡润 张祥明 许征宇 张晓玲 郭熙盛 鲁剑巍 |
| 作者单位： | 1. 安徽省农业科学院土壤肥料研究所,合肥230031;安徽养分循环与资源环境省级实验室,合肥230031 2. 安徽省池州市贵池区农业技术推广中心,安徽池州,247100 3. 华中农业大学资源与环境学院,武汉,430070 |
| 基金项目： | 国家“十一五”科技支撑计划重点项目“油菜高效简化施肥技术研究”(2010BAD01B05); 现代农业产业技术体系建设专项资金“油菜营养与施肥”(nycytx-005) |
| 摘 要： | 为了探明安徽省沿江地区直播油菜的钾肥产量效应，采用田间试验方法，研究了不同钾肥用量对油菜产量、钾肥利用率和经济效益的影响。结果表明，施用钾肥对直播油菜有显著的增产效应。3个不同土壤肥力的试验田块均是以处理K120获得较高产量。提高钾肥用量，油菜的钾肥偏生产力和农学利用率均有降低的趋势。油菜施用钾肥后的经济效益显著，处理K120产值和施肥效益最高，分别为6556.61元/hm2和6052.61元/hm2。产投比以处理K60和K120较高，产投比均高于2.0。综合考虑油菜施用钾肥的产量和经济效益，本试验条件下，安徽省沿江地区以每公顷施用120 kg K2O为最佳钾肥用量。 |
| 关 键 词： | 直播油菜 钾肥 产量 钾肥利用率 经济效益 |
| 收稿时间： | 2011/6/23 0:00:00 |
| 修稿时间： | 2011/10/8 0:00:00 |
Effects of Potassium on Direct-seeding Rapeseed Along the Yangtze River Regions in Anhui Province |
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| Wu Ji , Hu Run , Zhang Xiangming , Xu Zhengyu , Zhang Xiaoling , Guo Xisheng , Lu Jianwei.Effects of Potassium on Direct-seeding Rapeseed Along the Yangtze River Regions in Anhui Province[J].Chinese Agricultural Science Bulletin,2011,27(33):104-107. | |
| Authors: | Wu Ji Hu Run Zhang Xiangming Xu Zhengyu Zhang Xiaoling Guo Xisheng Lu Jianwei |
| Institution: | Wu Ji1,2,Hu Run3,Zhang Xiangming1,Xu Zhengyu1,Zhang Xiaoling1,Guo Xisheng1,Lu Jianwei4 (1Soil and Fertilizer Research Institute,Anhui Academy of Agricultural Sciences,Hefei 230031,2Anhui Provincial Key Laboratory of Nutrient Recycling,Resources & Environment,3The Agricultural Technology Extension Center of Guichi District,Chizhou City,Chizhou Anhui 247100,4College of Resources and Environmental Sciences,Huazhong Agricultural University,Wuhan 430070) |
| Abstract: | The research aimed to study effects of potassium supply on direct-seeding rapeseed yield, phosphorus recovery efficiency and economic benefits. The results indicated that potassium fertilizer could increase direct-seeding rapeseed yield significantly. Rapeseed yield was enhanced with the amount of K fertilizer added. The treatment K120 achieved the highest yield in the three test plots. With the increase of K application rate, partial factor productivity and K agronomic use efficiency were all decreased. Th... |
| Keywords: | direct-seeding rapeseed K fertilizer yield potassium efficiency profit |
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