Effect of temperature on dicyandiamide (DCD) longevity in pastoral soils under field conditions

Effect of temperature on dicyandiamide (DCD) longevity in pastoral soils under field conditions

Content Partner: Lincoln University. 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 =54-1.8T....

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Hauptverfasser: Kelliher, FM, van Koten, C, Kear, MJ, Sprosen, MS, Ledgard, SF, de Klein, CAM, Letica, SA, Luo, J, Rys, G
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van Koten, C
Kear, MJ
Sprosen, MS
Ledgard, SF
de Klein, CAM
Letica, SA
Luo, J
Rys, G
description Content Partner: Lincoln University. 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 =54-1.8T. 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±24days. 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.
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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 =54-1.8T. 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±24days. 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.</abstract><pub>Elsevier BV</pub><oa>free_for_read</oa></addata></record>
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title Effect of temperature on dicyandiamide (DCD) longevity in pastoral soils under field conditions
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