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Nitrogen uptake and transpiration by plant effects on nitrate leaching from granitic regosol

https://hiroshima.repo.nii.ac.jp/records/2008832
https://hiroshima.repo.nii.ac.jp/records/2008832
39900f6f-e1e1-4496-a157-e7fd64df72d2
名前 / ファイル ライセンス アクション
SSPN_53-3_300.pdf SSPN_53-3_300.pdf (267.2 KB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル Nitrogen uptake and transpiration by plant effects on nitrate leaching from granitic regosol
言語 en
作成者 Hashimoto, Maho

× Hashimoto, Maho

en Hashimoto, Maho

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Herai, Yoshinori

× Herai, Yoshinori

en Herai, Yoshinori

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Nagaoka, Toshinori

× Nagaoka, Toshinori

en Nagaoka, Toshinori

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Kouno, Kenji

× Kouno, Kenji

en Kouno, Kenji

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
権利情報 Copyright (c) 2007 Blackwell Publishing. The definitive version is available at www.blackwell-synergy.com
主題
主題Scheme Other
主題 Nitrate leaching
主題
主題Scheme Other
主題 N uptake
主題
主題Scheme Other
主題 transpiration
主題
主題Scheme Other
主題 corn
主題
主題Scheme Other
主題 granitic regosol
主題
主題Scheme Other
主題 planting density
主題
主題Scheme NDC
主題 610
内容記述
内容記述 Field and soil column experiments were conducted to analyze the effects of N uptake and transpiration by corn on nitrate-nitrogen (NO3-N) leaching in a granitic regosol and to evaluate the contribution of plant growth to the reduction of NO3-N leaching. In the field experiment, NO3-N leaching, N uptake by corn and retained N (inorganic N and microbial biomass N) were monitored in conventional planting density (CPD), high planting density (HPD) and no planting (NP) treatments. Nitrogen (N) was applied as (NH4)2SO4 at the rate of 300 kg N ha-1 and corn (Zea mays L.) was sown. In the soil column experiment, 1500 mg N column-1 was applied and corn was sown in four treatments; the no plant (NP), 1-, 2- and 4-plant column-1. NO3-N leaching, N uptake and transpiration by corn and retained NO3-N in the soil were measured. In the field experiment, cumulative NO3-N leaching in the NP treatment was 208 kg N ha-1 from 38 to 49 days after treatment. In the CPD and HPD treatments, NO3-N leaching was reduced to 148 kg N ha-1 and 73 kg N ha-1, respectively. N uptake by corn and retained N in the soil increased with increasing of planting density. Cumulative NO3-N leaching was negatively correlated with N uptake by corn (r = -0.940, P < 0.01, n = 10). NO3-N leaching decreased as N uptake by corn increased above 60 kg N ha-1. In the soil column experiment, cumulative NO3-N leaching was decreasing with increasing of planting density because of increasing of N uptake by corn and the amount of retained NO3-N in soil. The amount of retained NO3-N in soil was positively correlated with transpiration by corn (r = 0.943, P < 0.01, n = 12). We concluded that NO3-N leaching from a granitic regosol during the rainy season could be reduced by the increasing of planting density due to the increase of N uptake by plants and the increase of retained N in soil derived from the increasing of transpiration by plants.
言語 en
出版者
出版者 Blackwell Publishing
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ AO
出版タイプResource http://purl.org/coar/version/c_b1a7d7d4d402bcce
関連情報
識別子タイプ DOI
関連識別子 10.1111/j.1747-0765.2007.00134.x
関連情報
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1111/j.1747-0765.2007.00134.x
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0038-0768
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA00844314
開始ページ
開始ページ 300
書誌情報 Soil Science and Plant Nutrition
Soil Science and Plant Nutrition

巻 53, 号 3, p. 300-309, 発行日 2007-06
旧ID 20609
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