| 黄瓜苗期吸收NO_3~－、K~＋的动力学研究 |
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| 引用本文： | 刘秀珍,孙立艳.黄瓜苗期吸收NO_3~－、K~＋的动力学研究[J].山西农业大学学报(自然科学版),1995(3). |
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| 作者姓名： | 刘秀珍 孙立艳 |
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| 作者单位： | 山西农业大学土化系，山西省农牧厅环保站 |
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| 摘 要： | 试验结果表明：黄瓜苗期吸收ＮＯ３－、Ｋ＋的Ｋｍ值分别为０．２５和０．２２ｍｍｏｌ／Ｌ．Ｉｍａｘ分别为７．６７和１２．８６μｍｏｌ／ｇ·ｈ，Ｃｍｉｎ分别为０．０１和０．０２ｍｍｏｌ／Ｌ．说明黄瓜对Ｋ＋的吸收能力大于ＮＯ３－，在黄瓜苗期施用氮肥的同时，要注重钾肥的施用．
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| 关 键 词： | 黄瓜 NO_3~－ K~＋ 动力学参数 |
A KINETIC STUDY OF NITRATE AND POTASSIUM UPTAKE AT CUCUMBER SEEDING STAGE |
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| Liu Xiuzhen et al..A KINETIC STUDY OF NITRATE AND POTASSIUM UPTAKE AT CUCUMBER SEEDING STAGE[J].Journal of Shanxi Agricultural University,1995(3). |
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| Authors: | Liu Xiuzhen |
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| Abstract: | The expriment results indicated that Km of nitrate and potassium uptake at cucumber seeding stage respectively are 0. 25 and 0. 22 mmol/L, Imax respectively are 7. 67 and 12. 86 μmol/g .h, Cmin respectively are 0. 01 and 0. 02 mmol/L, It showed, poassium uptake is stronger than nitrate uptake while applying nitrogenous fertilizer, we must pay attention to applying potash fertilizer at cucumber seeding stage. |
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| Keywords: | Cucumber Nitrate potassium Kinetic parameter |
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