| 土壤预处理对不同起源氮矿化的影响 |
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| 引用本文： | 沈其荣 史瑞和. 土壤预处理对不同起源氮矿化的影响[J]. 南京农业大学学报, 1991, 14(1): 54-58 |
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| 作者姓名： | 沈其荣 史瑞和 |
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| 作者单位： | 南京农业大学土壤农业化学系(沈其荣)，南京农业大学土壤农业化学系(史瑞和) |
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| 摘 要： |
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| 关 键 词： | 土壤 预处理 矿化 氮 |
THE EFFECT OF SOIL PRETREATMENT ON THE MINERALIZATION OF NITROGEN DEPRIVED FROM DIFFERENT FORMS |
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| Sheng Qirong and Shi Ruihe. THE EFFECT OF SOIL PRETREATMENT ON THE MINERALIZATION OF NITROGEN DEPRIVED FROM DIFFERENT FORMS[J]. Journal of Nanjing Agricultural University, 1991, 14(1): 54-58 |
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| Authors: | Sheng Qirong and Shi Ruihe |
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| Affiliation: | Department of Soil Science and Agro-chemistry |
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| Abstract: | This paper deals with the turnover of nitrogen deprived from the newly fixed fertilizer nitrogen and the native humus nitrogen in soil, and the effect of soil pretreatment e.g.drying and sterilizing, on nitrogen mineralization. The results obtained were presented as follows: 1. 91.50% of fixed nitrogen in soil could be accounted for in soil biomass, and 90.71% of net increase of biomass nitrogen was traced from ammounium sulphate added while the amount of nitrogen deprived from native humus was only 10%. 2. Drying the soil could accelerate nitrogen mineralization and the drying effect could be eliminated by pre-incubating the soil for 10 days. Drying effect was much greater on the newly fixed nitrogen mainly in soil biomass than on the native humus nitrogen. |
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| Keywords: | soil nitrogen mineralization immobilization nitrogen in biomass soil pretreatment |
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