| 保护性耕作与秸秆还田对土壤微生物及其溶磷特性的影响 |
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| 引用本文： | 范丙全,刘巧玲.保护性耕作与秸秆还田对土壤微生物及其溶磷特性的影响[J].中国生态农业学报,2005,13(3):130-132. |
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| 作者姓名： | 范丙全 刘巧玲 |
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| 作者单位： | 1. 中国农业科学院土壤肥料研究所,北京,100081
2. 河北省农林科学院农业资源环境研究所,石家庄,050051 |
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| 基金项目： | 中国-加拿大国际合作项目(CIDA282/19690)部分研究内容 |
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| 摘 要： | 试验研究保护性耕作与秸秆还田对土壤微生物及其溶P特性结果表明,免耕和秸秆还田均能促进土壤麦角固醇的增加,而少耕却显著提高土壤微生物生物量。耕作方式间土壤有机碳水平无明显差异,但秸秆还田可提高土壤有机碳含量。免耕处理土壤微生物量显著增加,深耕处理土壤微生物量则较低,秸秆还田微生物量显著高于无秸秆对照。浅耕处理溶P细菌数量最高,免耕最少,但少耕和免耕处理溶P微生物的溶P能力大于深耕及浅耕,秸秆还田对溶P微生物群体和高效溶P菌生长均有促进作用。
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| 关 键 词： | 免耕 少耕 秸秆还田 土壤微生物 溶P微生物 |
| 收稿时间： | 9/6/2004 12:00:00 AM |
| 修稿时间： | 2004年9月6日 |
Effect of conservation tillage and straw application on the soil microorganism and P-dissolving characteristics |
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| FAN,Bing-Quan and LIU Qiao-
Ling.Effect of conservation tillage and straw application on the soil microorganism and P-dissolving characteristics[J].Chinese Journal of Eco-Agriculture,2005,13(3):130-132. |
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| Authors: | FAN Bing-Quan and LIU Qiao-
Ling |
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| Abstract: | The effects of conservation tillage and straw application on the soil microorganisms and P-dissolving characteristics were studied.The results show that minimum tillage has a good effect on the microbial carbon,zero tillage and straw application can increase the ergosterol level and accumulation of organic-C in soil.The soil organic-C levels have no significant differences in different tillage modes.Straw application can increase the soil organic-C content,zero tillage can increase the population of soil microorganisms,deep tillage shows a lower population of soil microorganisms.The microorganism amount of straw application is significantly higher than that without straw application.Minimum tillage have a higher population of soil microorganisms,zero tillage shows a lower population of P-dissolving microorganism,minimum and zero tillages promote the development of high efficient P-dissolving strain.Crop residues can enhance the population of phosphate solubilizing microorganism,and development of higher efficient strain of P solubilization. |
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| Keywords: | Zero tillage Minimum tillage Straw application Soil microorganism P-dissolving microorganism |
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