| 白菜型冬油菜不同生长期土壤氮素组分含量的变化 |
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| 引用本文： | 王治江,许耀照,曾秀存,王凡.白菜型冬油菜不同生长期土壤氮素组分含量的变化[J].中国农学通报,2020,36(18):80-86. |
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| 作者姓名： | 王治江 许耀照 曾秀存 王凡 |
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| 作者单位： | 1.河西学院农业与生态工程学院,甘肃张掖 734000;2.甘肃省河西走廊特色资源利用重点实验室,甘肃张掖 734000;3.河西学院生命科学与工程学院,甘肃张掖 734000 |
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| 基金项目： | 国家自然科学基金地区基金项目“白菜型冬油菜响应低温胁迫的质外体蛋白质组学研究”(31560397);国家自然科学基金地区基金项目“西北寒旱区超强抗寒冬油菜陇油7号抗寒机理研究”(31660401) |
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| 摘 要： | 为探讨白菜型冬油菜生长期土壤氮素组分含量的变化规律。以不同品种的白菜型冬油菜为试验材料,采用大田试验,对其不同生长期土壤全氮、铵态氮、硝态氮、碱解氮、矿化氮、酸解氮、氨基糖态氮、氨基酸态氮、非酸解氮和未知态氮含量进行研究。结果表明：白菜型冬油菜生长期土壤全氮、酸解氮和未知态氮含量在枯叶期最高,依次为1.24 g/kg、694.52 mg/kg和539.50 mg/kg;硝态氮含量在幼苗期最高为33.04 mg/kg;碱解氮和铵态氮含量在返青期最高,依次为40.68 mg/kg和21.55 mg/kg;矿化氮和氨基酸态氮含量在收获期最高,依次为1583.25 mg/kg和63.45 mg/kg;枯叶期和返青期是冬油菜越冬期,其与幼苗期、苗期、花期土壤氮素各组分含量有差异。土壤全氮、铵态氮、非酸解氮含量在白菜型冬油菜不同生长期呈“升-降”趋势;硝态氮和氨基酸态氮含量呈“降-升”趋势;碱解氮和氨基糖态氮含量呈“降-升-降”趋势;矿化氮、酸解氮和未知态氮含量呈“升-降-升”趋势。
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| 关 键 词： | 白菜型冬油菜 生长期 氮素组分 含量 变化 |
| 收稿时间： | 2019-12-20 |
Change of Soil Nitrogen Component and Content in Different Growth Periods of Winter Rapeseed |
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| Wang Zhijiang,Xu Yaozhao,Zeng Xiucun,Wang Fan.Change of Soil Nitrogen Component and Content in Different Growth Periods of Winter Rapeseed[J].Chinese Agricultural Science Bulletin,2020,36(18):80-86. |
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| Authors: | Wang Zhijiang Xu Yaozhao Zeng Xiucun Wang Fan |
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| Institution: | 1.College of Agricultural and Ecological Engineering Hexi University, Zhangye Gansu 734000;2.Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Zhangye Gansu 734000;3.School of Life Sciences and Engineering Hexi University, Zhangye Gansu 734000 |
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| Abstract: | To evaluate changes of soil nitrogen component and content of winter rapeseed in different growth periods, winter rapeseed varieties were planted under field growth condition, contents of total nitrogen, ammonium nitrogen, nitrate nitrogen, alkali-hydrolyzed nitrogen, mineralized nitrogen, acid-hydrolyzed nitrogen, amino sugar nitrogen, amino acid nitrogen, non-acid-hydrolyzed nitrogen and unknown nitrogen were tested. The results showed that the content of total nitrogen, acid-dissociated nitrogen and unknown nitrogen in perish period were the highest, 1.24 g/kg, 694.52 mg/kg and 539.50 mg/kg, respectively. The content of nitrate nitrogen at seedling stage was the highest, 33.04 mg/kg. The content of alkali-hydrolyzed nitrogen and ammonium nitrogen were the highest at the turning green stage, 40.68 mg/kg and 21.55 mg/kg, respectively. The content of mineralized nitrogen and amino acid nitrogen were the highest at harvesting stage, 1583.25 mg/kg and 63.45 mg/kg, respectively. The content of nitrogen in perish and turning green stage were significantly different from that at seedling and flowering stage. The “up-down” trend of content of total nitrogen, ammonium nitrogen and non-acidic nitrogen was observed in winter rapeseed during different growth periods, the “down-up” trend was showed in the content of nitrate nitrogen and amino acid nitrogen, the “down-up-down” trend was found in the content of alkali-hydrolyzed nitrogen and aminoglycosaccharide nitrogen, and the “up-down-up” trend was observed in the content of mineralized nitrogen, acidolysis nitrogen and unknown nitrogen. |
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| Keywords: | winter rapeseed growth period nitrogen component nitrogen content change |
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