کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7063447 | 1459807 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of fertilisation on biomass yield, ash and element uptake in SRC willow
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of fertilisation on biomass yield, ash and element uptake in SRC willow Effect of fertilisation on biomass yield, ash and element uptake in SRC willow](/preview/png/7063447.png)
چکیده انگلیسی
Optimal fertilization of short rotation coppice (SRC) willow is important both in terms of economic yield and environmental effect. We measured biomass yield and nutrient uptake in two willow clones, Inger and Tordis, grown on a coarse sandy soil and within six different fertilization regimes. Fertilization treatments were carried out during two two-year harvest rotations, beginning in the 2nd growth year of the plantation. Willow was fertilized as follows with names referring to type of fertilizer and total quantities of nitrogen (kg haâ1) in first and second year within both rotations: 1) Control0+0, 2) NPK120+0, 3) Slurry180+0, 4) NPK120+120, 5) NPK240+0, 6) Slurry360+0. Fertilization affected biomass yield significantly but interacted with rotation and clone. In first rotation, fertilization increased dry matter (DM) yield across clones significantly from 3.7 Mg haâ1 yâ1 for Control0+0 to 6.5, 6.4 and 5.6 for Slurry360+0, NPK120+120 and NPK240+0, respectively. In second rotation, yield increased from 6.2 Mg haâ1 yâ1 to 8.8, 8.2, 7.8 and 7.4 for Slurry360+0, NPK240+0, Slurry180+0 and NPK120+120, respectively. Biomass dry matter yield per ha increased linearly at 15 kg kgâ1 of applied total-N in both rotations. The yield increase in response to fertilization was generally larger in Inger than in Tordis. In general, element concentration in the harvested biomass was either unaffected or slightly reduced by fertilization. In conclusion, yield response to fertilization appears to be primarily related to the quantity of N applied but the effect depended on fertilizer type, harvest rotation and willow clone.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomass and Bioenergy - Volume 86, March 2016, Pages 120-128
Journal: Biomass and Bioenergy - Volume 86, March 2016, Pages 120-128
نویسندگان
Søren Ugilt Larsen, Uffe Jørgensen, Jens Bonderup Kjeldsen, Poul Erik Lærke,