[1]张燕,王百群,何瑞清.不同施肥下冬小麦生长过程中土壤矿质氮变化及其与冬小麦叶片SPAD值的关系[J].水土保持研究,2016,23(06):78-82.
　ZHANG Yan,WANG Baiqun,HE Ruiqing.Changes of Soil Mineral Nitrogen and Its Relationship with Soil and Plant Analyzer Development (SPAD) Values of Winter Wheat Leaves During Winter Wheat Growth Under Different Fertilization[J].Research of Soil and Water Conservation,2016,23(06):78-82.
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不同施肥下冬小麦生长过程中土壤矿质氮变化及其与冬小麦叶片SPAD值的关系

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年06期 页码: 78-82 栏目: 出版日期: 2016-12-28
Title:
Changes of Soil Mineral Nitrogen and Its Relationship with Soil and Plant Analyzer Development (SPAD) Values of Winter Wheat Leaves During Winter Wheat Growth Under Different Fertilization
作者:
张燕1, 王百群1,2, 何瑞清1
1. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100;
2. 中国科学院 水利部水土保持研究所 土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100
Author(s):
ZHANG Yan1, WANG Baiqun1,2, HE Ruiqing1
1. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
关键词:
矿质氮; 冬小麦; SPAD值
Keywords:
mineral nitrogen; winter wheat; Soil and Plant Analyzer Development (SPAD) value
分类号:
S512.1+1;Q948;S153.6
摘要:
通过调查分析，研究了土长期施肥条件下土壤中矿质氮含量变化及其与地上冬小麦叶片SPAD值。结果表明：（1）整个冬小麦生长期不同土层硝态氮和铵态氮的变化趋势不一致，硝态氮含量是先下降后上升的变化，而铵态氮含量呈一直上升的变化趋势。在没有施过氮肥的处理中，0—20 cm，20—40 cm土层中土壤硝态氮、铵态氮含量显著低于施用氮肥的处理；（2）冬小麦生长时期，各个处理叶片SPAD值各异，但都是先升高后下降的变化，无氮肥施用的叶片SPAD值低于施氮肥的处理；（3）冬小麦各个生长时期叶片SPAD值与土壤不同层次（0—20 cm，20—40 cm）硝态氮含量呈正相关关系，而与铵态氮含量相关性不显著，这表明小麦是对硝态氮较为敏感的作物。本试验结果可以为进一步合理调控氮肥施用、明确施氮对小麦产量和品质的影响提供一定的基础依据。
Abstract:
Through the investigation and analysis, the soil and plant analyzer development (SPAD) values of winter wheat leaves and mineral nitrogen contents of Lou soil under the long-term fertilization were characterized. The results showed that:(1) the changes of nitrate nitrogen and ammonium nitrogen contents in different soil layers were not consistent during the winter wheat grwoth period. The contents of nitrate nitrogen were decreased first and then increased, while the content of ammonium nitrogen has been rising, the contents of nitrate nitrogen and ammonium nitrogen of treatment with no nitrogen fertilizer were significantly lower than those of treatments with nitrogen fertilizer in the different soil layers (0-20 cm, 20-40 cm); (2) during the growth period of winter wheat, the SPAD values of all treatments were different, but all of which first increased and then decreased. The SPAD values of leaves under the treatment with no nitrogen fertilizer were lower than those of the treatments with nitrogen fertilizer application; (3) during winter wheat growth period, SPAD values of leaves and nitrate nitrogen contents were significantly positively correlated in different soil layers (0-20 cm, 20-40 cm), while their correlation with the content of ammonium nitrogen was not significant, indicating that wheat is sensitive to nitrate nitrogen to some extent. The results could provide the reference for manipulation of the nitrogen fertilizer application and understanding the effect of nitrogen fertilization on the yield and quality of winter wheat.

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备注/Memo

收稿日期:2016-05-22;改回日期:2016-06-23。
基金项目:科技基础性工作专项“农田生态系统资源分布与生源要素现状调查”（2014FY210112）；国家自然科学基金项目（40301024）
作者简介:张燕(1991-),女,甘肃会宁人,硕士研究生,从事土壤生态研究。E-mail:zoeyzy0419@foxmail.com
通讯作者:王百群(1968-),男,陕西渭南人,博士,副研究员,从事土壤有机碳氮循环研究。E-mail:bqwang@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01