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| 不同化肥施用方式对鄂西南植烟土壤有效氮时空动态的影响 | |
| 引用本文： | 徐祥玉,黎根,袁家富,赵书军,毕庆文,王海明,蔡章春.不同化肥施用方式对鄂西南植烟土壤有效氮时空动态的影响[J].湖北农业科学,2009,48(1). |
| 作者姓名： | 徐祥玉 黎根 袁家富 赵书军 毕庆文 王海明 蔡章春 |
| 作者单位： | 1. 湖北省农业科学院植保土肥研究所,武汉,430064 2. 湖北中烟有限责任公司,武汉,430051 3. 湖北省恩施州烟草公司宣恩烟叶分公司,湖北宣恩,445500 |
| 摘 要： | 在鄂西南烟区研究了化肥不同施用A-式对植烟土壤有效氮时空动态的影响.结果表明,在不栽烟模式下施肥后40 d左右肥料养分随雨水下渗已经基本损失完毕;在雨水较多年份底层土壤有效氮受表层土壤有效氮下渗补充较高.揭膜可能使土壤有效氮淋溶损失风险增大,同时在一定程度上有提高养分利用的可能性:提前施肥可使肥料养分在整个土体中分布均匀,且可能有效激发土壤有机养分矿化. |
| 关 键 词： | 施肥方式 有效氮 时空动态 |
Effect of Different Fertilization Pattern on Available Nitrogen Space-time Dynamic Balance of Planting Tobacco Soil in the Southwest Hubei |
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| XU Xiang-yu,LI Geng,YUAN Jia-fu,ZHAO Shu-jun,BI Qin-wen,WANG Hai-ming,CAI Zhang-chun.Effect of Different Fertilization Pattern on Available Nitrogen Space-time Dynamic Balance of Planting Tobacco Soil in the Southwest Hubei[J].Hubei Agricultural Sciences,2009,48(1). | |
| Authors: | XU Xiang-yu LI Geng YUAN Jia-fu ZHAO Shu-jun BI Qin-wen WANG Hai-ming CAI Zhang-chun |
| Institution: | 1.Institute of Plant Protection and Soil Science;Hubei Agricultural Academy of Sciences;wuhan 430064;China;2.China Tobacco Hubei Industrial Corporation;Wuhan 430051;3.Xuan'en Tobacco Sub-company;Enshi Tobacco Company;Xuan'en 445500;Hubei;China |
| Abstract: | A field experiment was carried out on planting tobacco soil in the southwest of Hubei to study the effect of different fertilization pattern on available nitrogen space-time dynamic.The results showed that the nutrient of fertilizer was loss end with precipitation after fertilization 40d in no plant tobacco,available nitrogen of substrate soil received a large number of sup-plement from surface layer soil in pluvious years.Uncovering films could increase eluviation intensity of soil available nitro-gen,and ... |
| Keywords: | fertilization pattern available nitrogen space-time dynamic |
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