کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8872703 | 1622870 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nitrogen supply - A determinant in water use efficiency of winter wheat grown under free air CO2 enrichment
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
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چکیده انگلیسی
Increasing N supply increased canopy size and decreased radiation transmission to the soil surface. Moreover increasing N supply enhanced biomass production from 771-1569âg mâ2, ET from 227 to 336âmm and WUE from 4.07 to 6.20âg kgâ1. Biomass was increased under [eCO2] by 17% among all N levels. [eCO2] increased soil moisture especially in the upper soil layer (0-20âcm) and thus irrigation was reduced under [eCO2] compared to [aCO2]. This effect was intensified by rising N supply leading to a significant CO2ÃN interaction on ET and WUE. Thus, the [eCO2] effect was for ET â2, â9 and â10% and for WUEâ+â20,+ 30 and +29% under 35, 190, 320âkg N ha-1, respectively. Simultaneously, there seems to be a greater increase of evaporation by [eCO2] under low than high N supply.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agricultural Water Management - Volume 210, 30 November 2018, Pages 70-77
Journal: Agricultural Water Management - Volume 210, 30 November 2018, Pages 70-77
نویسندگان
Remy Manderscheid, Markus Dier, Martin Erbs, Jan Sickora, Hans-Joachim Weigel,