کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5762026 1624803 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Long-term studies on switchgrass grown on a marginal area in Greece under different varieties and nitrogen fertilization rates
ترجمه فارسی عنوان
مطالعات طولانی مدت بر روی ژنوم رشد در یک منطقه حاشیه ای در یونان تحت انواع مختلف و میزان کود نیتروژن
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Switchgrass (Panicum virgatum L.) is a perennial grass that has been selected as a candidate bioenergy crop for USA in the early 80s, while the research in Europe started a decade later. A long-term study on switchgrass had been carried out (1998-2015) on a marginal area in Greece comparing five varieties (having lowland or upland ecotype) at increasing nitrogen fertilization rates (0, 75 and 150 kg N ha−1). Due to the successful establishment of the plantation quite satisfactory yields were recorded even at the establishment year (8.9 Mg DM ha−1) and the ceiling yields were recorded in the 2nd year and came up to 20 Mg DM ha−1. The under study lowland varieties (Alamo, Kanlow and Pangburn) were more productive compared to the upland varieties (Blackwell and CIR) with mean dry yields 12.37 and 11.39 Mg ha−1, respectively and showed higher resistance to lodging. Among the five under study varieties, Alamo was the best performing giving an average yield of 12.7 Mg DM ha−1, averaged over all treatments and years, while CIR was the least performing producing a corresponding average yield of 10.8 Mg DM ha−1. From the fourth growing season and onwards significantly higher yields were recorded under increasing N fertilization up to 150 kg N ha−1 with an average yield of 13.9 Mg DM ha−1 (150 kg N/ha) over all varieties and years. The corresponding yields for the other two tested nitrogen rates (0 and 75 kg N/ha) were 10.31 and 11.69 Mg DM ha−1, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 107, 15 November 2017, Pages 446-452
نویسندگان
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