| 包膜尿素氮素溶出对油菜生长及产量的影响 |
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| 引用本文： | 张玉玲,虞娜,邹洪涛,张玉龙,陈温福,岡本昌広. 包膜尿素氮素溶出对油菜生长及产量的影响[J]. 土壤通报, 2011, 0(4): 931-936 |
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| 作者姓名： | 张玉玲 虞娜 邹洪涛 张玉龙 陈温福 岡本昌広 |
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| 作者单位： | 沈阳农业大学土地与环境学院农业部东北土壤与环境重点开放实验室辽宁省农业资源与环境重点实验室;沈阳农业大学农学院;神奈川县农业综合研究所; |
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| 基金项目： | 国家自然科学基金(31000936); 教育部重点项目(209032); 辽宁省重大农业攻关项目(2006215005); 赴日研修项目; 沈阳农业大学博士后基金项目资助 |
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| 摘 要： | 通过肥料埋藏试验及盆栽试验方法,研究了LP30日型和LP70日型包膜尿素氮素溶出对油菜生长及产量的影响。研究表明:一级反应动力学模型可很好地描述LP30日型和LP70日型包膜尿素氮素的溶出过程,其溶出速率常数分别为0.0132和0.0067。硫酸铵处理的油菜株高、株重及产量均随氮素用量的增加呈指数型增加趋势,而LP30日型和LP70日型包膜尿素处理的油菜株高、株重及产量则均随氮素用量的增加呈直线型增加趋势。与硫酸铵处理相比,LP30日型和LP70日型包膜尿素处理,在施氮量为N 0.1 g kg-1和N 0.2 g kg-1条件下,均可使油菜株高、株重及产量显著下降(P<0.01),且以LP70日型包膜尿素下降最为明显;在施氮量为N 0.4 g kg-1条件下,LP30日型包膜尿素可使油菜株高、株重及产量显著提高(P<0.01),而LP70日型包膜尿素则使油菜株高、株重及产量提高不明显,但这两种包膜尿素均可明显提高肥料溶出氮素的利用率。
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| 关 键 词： | 包膜尿素 氮素溶出 油菜 |
Effect of Nitrogen Solubility of Coated Urea on the Growth and Yield of Rape |
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| ZHANG Yu-ling ,,YU Na ,ZOU Hong-tao ,ZHANG Yu-long ,CHEN Wen-fu ,Masahiro Okamoto. Effect of Nitrogen Solubility of Coated Urea on the Growth and Yield of Rape[J]. Chinese Journal of Soil Science, 2011, 0(4): 931-936 |
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| Authors: | ZHANG Yu-ling YU Na ZOU Hong-tao ZHANG Yu-long CHEN Wen-fu Masahiro Okamoto |
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| Affiliation: | ZHANG Yu-ling 1,2,YU Na 1,ZOU Hong-tao 1,ZHANG Yu-long 1,CHEN Wen-fu 2,Masahiro Okamoto 3(1.College of land and Environment,Shenyang Agricultural University,Key Laboratory of Northeastern Soil and Environment of Ministry of Agriculture,Liaoning Key Laboratory of Agricultural Resources and Environment,Liaoning,Shenyang 110161,China,2.College of Agriculture,Shenyang Agricultural Universty,Liaoning Shenyag 110161,3.Kanagawa Agricultural integration Institute,Kanagawa,259-1204,Japan.) |
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| Abstract: | The effect of nitrogen solubility of two kinds of coated ureas(LP30 and LP70) on the growth and yield of rapes was studied with the method of fertilizer burying and pot experiment.The results showed that the first-order kinetic model could preferably describe the nitrogen solubility process of LP30 and LP70 coated ureas,the dissolution rate constant was 0.0132 and 0.0067 respectively.The plant height,weight and yield of rape all increased exponentially with the increasing of nitrogen amount for the treatmen... |
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| Keywords: | Coated urea Nitrogen solubility Rape |
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