|本期目录/Table of Contents|

[1]刘冲,王茂文,邢锦城,等.沿海滩涂增施氮肥对马齿苋生长发育及土壤微生物环境的影响[J].江苏农业科学,2017,45(19):208-210.
 Liu Chong,et al.Effects of nitrogen fertilizer on growth and soil microbial environment of Portulaca oleracea in coastal mudflat[J].Jiangsu Agricultural Sciences,2017,45(19):208-210.
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沿海滩涂增施氮肥对马齿苋生长发育
及土壤微生物环境的影响
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年19期
页码:
208-210
栏目:
园艺与林学
出版日期:
2017-10-05

文章信息/Info

Title:
Effects of nitrogen fertilizer on growth and soil microbial environment of Portulaca oleracea in coastal mudflat
作者:
刘冲 王茂文 邢锦城 丁海荣 朱小梅 赵宝泉 董静 温祝桂 洪立洲
江苏沿海地区农业科学研究所,江苏盐城 224002
Author(s):
Liu Chonget al
关键词:
马齿苋氮肥生长发育土壤微生物土壤生态
Keywords:
-
分类号:
S158.3
DOI:
-
文献标志码:
A
摘要:
为明确沿海滩涂上增施氮肥对马齿苋生长发育及土壤微生物环境的影响,通过田间小区试验研究了5个氮肥水平(CK;N1:100 kg/hm2;N2:150 kg/hm2;N3:200 kg/hm2;N4:250 kg/hm2)对马齿苋生长发育、土壤养分及土壤微生物特性的影响。结果表明:增施氮肥能显著改善马齿苋生长发育,提高其生物产量,其中N3、N4达显著水平,鲜质量分别比对照增加19.3%、18.9%;增施氮肥后,土壤盐分呈现逐渐下降的趋势,土壤各养分指标呈现上升的趋势。N3水平下,土壤盐分仅为对照的88.6%,土壤全氮含量、有机质含量分别比对照增加21.5%、16.9%;在沿海滩涂上施用氮肥,土壤微生物群落物种丰富度指数、均匀度指数均高于CK处理,且施氮量越大,指数值越大,N3、N4水平达显著差异。氮肥用量越大,优势度指数越小。由此可见,在沿海滩涂上增施氮肥,可显著改善马齿苋的生长发育,促进其生长;增施氮肥能够增加土壤养分,降低土壤盐分,提高土壤微生物多样性,增加土壤微生物活性,起到改善土壤生态环境的效果,且以N3和N4效果最佳。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2016-05-10
基金项目:江苏省农业科技自主创新资金[编号:CX(14)2046]。
作者简介:刘冲(1984—),男,江苏盐城人,硕士,助理研究员,主要从事耐盐植物栽培利用研究。E-mail:cellbio@163.com。
通信作者:洪立洲,研究员,主要从事土壤肥料与盐土农业工程研究。E-mail:ychonglz@163.com。
更新日期/Last Update: 2017-10-05