| 外源钾对三种不同土壤钾转化影响的研究 |
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| 引用本文： | 徐晓燕,马毅杰,张瑞平,沈培友. 外源钾对三种不同土壤钾转化影响的研究[J]. 土壤通报, 2005, 36(1): 58-61 |
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| 作者姓名： | 徐晓燕 马毅杰 张瑞平 沈培友 |
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| 作者单位： | 1. 中国科学技术大学地球与空间科学学院,安徽,合肥,230026
2. 中国科学院南京土壤研究所,江苏,南京,210008 |
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| 基金项目： | 国家自然科学基金项目(49971047)国家烟草专卖局项目资助 |
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| 摘 要： | 采用盆栽试验,在黄棕壤,砖红壤,黑土三种土壤上种植烟草,研究了外源钾对土壤中钾转化的影响,结果表明:在黄棕壤,黑土上,0.0-0.8 g kg-1施肥范围内,随着施钾量的增加,土壤中速效钾和缓效钾的总增量、作物的含钾量均在增加,尤其是在0.8 g kg-1施肥水平时,二者超出了施肥的增加量,说明施钾促进了其它钾的释放;三种土壤中粘土矿物含量为:黑土>黄棕壤>砖红壤。
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| 关 键 词： | 土壤钾 外源钾 烟草 |
| 文章编号： | 0564-3945(2005)01-0058-04 |
| 修稿时间： | 2003-08-19 |
Effect of Potassium Application on Transformation of Soil Potassium in Different Soils |
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| XU Xiao - yan,MA Yi - jie,ZHANG Rui - ping,SHEN Pei - you. Effect of Potassium Application on Transformation of Soil Potassium in Different Soils[J]. Chinese Journal of Soil Science, 2005, 36(1): 58-61 |
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| Authors: | XU Xiao - yan MA Yi - jie ZHANG Rui - ping SHEN Pei - you |
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| Abstract: | To study the effect of potassium fertilizer on transformation of soil potassium in yellow - brown soil, lateritic red soil and black soil after planting tobacco and wheat, pot culture experiment was carried out. The results showed that:the total quantity of available potassium and slowly available potassium K content in leaves were increased when the applied K was increased from 0 to 0.8 g kg-1 and they both exceeded the increased quantity of supplied fertilizer. The finding showed applied potassium promoted the release of other potassium. |
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| Keywords: | Soil potassium Applied potassium Tobacco |
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