کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8487928 | 1552066 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of temperature on dicyandiamide (DCD) longevity in pastoral soils under field conditions
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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
Data were analysed from five trials begun in autumn at a field site and a relationship between time for concentration of the nitrification inhibitor dicyandiamide (DCD) in soil to halve (t½, days) and the mean soil temperature (T, °C) was developed: t½ = 54-1.8 T. For example, when T was 8 and 16 °C, t½ was 39 ± 6 and 25 ± 3 days (±95% confidence limit), respectively. Previously, under laboratory conditions at equivalent temperatures, the corresponding values of t½ were 86 ± 31 and 44 ± 24 days. Thus, the proportional responses of t½ to increasing T from 8 to 16 °C were similar, but under field conditions t½ was about half that under laboratory conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agriculture, Ecosystems & Environment - Volume 186, 15 March 2014, Pages 201-204
Journal: Agriculture, Ecosystems & Environment - Volume 186, 15 March 2014, Pages 201-204
نویسندگان
F.M. Kelliher, C. van Koten, M.J. Kear, M.S. Sprosen, S.F. Ledgard, C.A.M. de Klein, S.A. Letica, J. Luo, G. Rys,