中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 下辽河平原两种类型水稻土有机氮组分的研究 土壤 2015 (6) 1021-1026
Position: Home > Articles > Research on the Fractions of Soil Organic Nitrogen in Two Types of Paddy Soils in Lower Liaohe Plain Soils 2015 (6) 1021-1026

下辽河平原两种类型水稻土有机氮组分的研究

作  者：
张玉玲;顾婉宣;丛耀辉;虞娜;邹洪涛;范庆锋;张玉龙
单  位：
沈阳农业大学土地与环境学院农业部东北耕地保育重点实验室
关键词：
水稻土;有机氮;酸解各组分氮;下辽河平原
摘  要：
结合野外调查取样,采用Bremner法测定下辽河平原两种类型(草甸土型和滨海盐渍土型)水稻土有机氮组分含量。结果表明:1两种类型水稻土均以酸解氮为主体。草甸土型水稻土酸解氮含量显著高于滨海盐渍土型水稻土(P<0.01),其分配比例则显著低于滨海盐渍土型水稻土(P<0.01)。2两种类型水稻土酸解各组分氮含量及其分配比例的分布规律不同,其差异因酸解氮组分的不同而异。草甸土型水稻土表现为未知态氮>氨态氮>氨基酸态氮>氨基糖态氮,滨海盐渍土型水稻土则表现为氨基酸态氮>未知态氮>氨态氮>氨基糖态氮;草甸土型水稻土酸解氨态氮与氨基酸态氮总量及其分配比例显著低于滨海盐渍土型水稻土(P<0.01),酸解未知态氮含量及其分配比例则显著高于滨海盐渍土型水稻土(P<0.01)。3两种类型水稻土酸解氮含量均与其土壤有机碳、全氮含量呈显著正相关(P<0.01)。因此,该地区两种类型水稻土有机氮组分含量及其分配比例的显著差异是影响土壤氮素有效性的重要因素。
译  名：
Research on the Fractions of Soil Organic Nitrogen in Two Types of Paddy Soils in Lower Liaohe Plain
作  者：
ZHANG Yu-ling;GU Wan-xuan;CONG Yao-hui;YU Na;ZOU Hong-tao;FAN Qing-feng;ZHANG Yu-long;College of Land and Environmental Science, Shenyang Agricultural University, Key Laboratory of Preservation of Northeast Cultivated Land, Ministry of Agriculture;
关键词：
Paddy soil;;Organic nitrogen;;Fractions of acidolysable nitrogen;;Lower Liaohe Plain
摘  要：
Contents of fractions of organic nitrogen(N) in two types of paddy soils(meadow soil and coastal saline soil) were measured with the Bremner method. Results showed that: 1) acid hydrolysis N was the dominant fraction of organic nitrogen in two paddy soils. The content of acid-hydrolyzable N in meadow paddy soil was significantly higher than coastal saline paddy soil(P < 0.01), while the distribution proportion of acid-hydrolizable N in meadow paddy soil was significantly lower than that in coastal saline paddy soil(P < 0.01). 2) The contents and distribution proportion of the fractions of acid-hydolyzable N were different in two paddy soils. In meadow paddy soil, the organic N followed the order: unknown N > ammonia N > amino acid N > amino sugar N, while in coastal saline soil that was amino acid N > unknown N > ammonia N > amino sugar N. The total contents and distribution proportion of acid-hydolyzable N and amino acid N in meadow paddy soil were significantly lower than those in coastal saline paddy soil(P < 0.01), while the content and distribution proportion of acid-hydrolysable unknown N in meadow paddy soil were significantly higher than these in coastal saline paddy soil(P < 0.01). 3) The acid-hydrolyzable N in two types of paddy soils was positively correlated with soil organic C and total N significantly(P < 0.01). Therefore, the significant differences in the contents and distribution proportion of the fractions of organic N were the main factors that affected the availability of soil N in two types of paddy soils in this region.

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46