Nongrowing season soil surface nitrate and phosphate dynamics in a corn–soybean rotation in eastern Canada: in situ evaluation using anionic exchange membranes

Author:

Shi Yichao11,Ziadi Noura11,Messiga Aimé J.11,Lalande Roger11

Affiliation:

1. Quebec Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Blvd., Quebec City, QC G1V 2J3, Canada.

Abstract

Determining how agricultural management practices affect changes in soil nitrogen (N) and phosphorus (P) could further our understanding of soil N and P cycle. The main objective of this study was to assess in situ nongrowing season soil nitrate and phosphate dynamics as adsorbed on anionic exchange membranes (AEM-N and AEM-P, respectively). The membranes were buried in the surface horizon (5 cm below the soil surface) over the nongrowing season (mid-November to mid-April) in five consecutive years (2009–2010 to 2013–2014) in a long-term corn–soybean rotation experiment established in 1992 in eastern Canada. The treatments consisted of two tillage systems, namely moldboard plow (MP) and no-till (NT), and nine combinations of fertilizer applications, namely three N rates (0, 80, and 160 kg N ha−1) and three P rates (0, 17.5, and 35 kg P ha−1) in a split-plot design with four replications. The results showed that AEM-N and AEM-P averaged 1.8 µg cm−2 d−1 and 7.4 ng cm−2 d−1 under MP, respectively, and 2.8 µg cm−2 d−1 and 67.8 ng cm−2 d−1 under NT, respectively. Nitrogen application increased AEM-N in 2010–2011, 2011–2012, and 2012–2013, but decreased AEM-P mainly under NT. Phosphorus fertilization had no effect on AEM-N, but increased AEM-P under both MP and NT. We conclude that AEM can be used as a technique to study N and P dynamics under cold winters of eastern Canada.

Publisher

Canadian Science Publishing

Subject

Soil Science

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3