کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6374447 | 1624670 | 2016 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Grain yield, water and nitrogen use efficiencies of rice as influenced by irrigation regimes and their interaction with nitrogen rates
ترجمه فارسی عنوان
عملکرد دانه، آب و نیتروژن استفاده از کارایی برنج تحت تأثیر رژیم های آبیاری و تعامل آنها با میزان نیتروژن
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
N harvest indexROACgrAWDIENinternal N use efficiencyDATNUENitrogen use efficiency (NUE)WUEAlternate wetting and drying (AWD)PNUERoot oxidation activityNSCpFPNHINNitrogen use efficiency - استفاده از نیتروژن بهره وریPhotosynthetic nitrogen use efficiency - بازده استفاده از نیتروژن فتوسنتزیWater use efficiency (WUE) - بازده مصرف آب (WUE)Rice (Oryza sativa L.) - برنج (Oryza sativa L.)Water use efficiency - بهره وری استفاده از آبsynergistic interaction - تعامل سینرژیکdays after transplanting - روز بعد از پیوندCrop growth rate - سرعت رشد محصولLeaf area index - شاخص سطح برگLAI - شبیهLeaf area duration - طول دوره برگLAD - لادوalternate wetting and drying - مرطوب و خشک کردن متناوبNitrogen - نیتروژنdry weight - وزن خشکNonstructural carbohydrate - کربوهیدرات غیر ساختاری
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
چکیده انگلیسی
A major challenge in rice production is to achieve the goal of increasing both food production and resource use efficiency. This study investigated if and how irrigation regimes could synergisticly interact with nitrogen (N) rates to increse grain yield, water use effciency (WUE) and N use effciency (NUE) in rice. A field experiment was conducted with three N rates, 100 (low amount, LN), 200 (normal amount, NN) and 300 kg haâ1 (high amount, HN), and three irrigation regimes, alternate wetting and moderate drying (AWMD), alternate wetting and severe drying (AWSD) and continuously flooded (CF). Among the three N rates, both grain yield and WUE were the lowest at LN in all the irrigation regimes, were the highest at NN in the CF regime and at HN in the AWSD regime, and showed no significant difference between NN and HN in the AWMD regime. Either internal N use efficiency or N partial factor productivity (PFPN) decreased with the increase of N rates. At the same N rate, the AWMD regime showed the highest grain yield, WUE and PFPN among the three irrigation regimes. Reduced unproductive tillers, enhanced root growth and increased harvest index contributed to a higher grain yield and higher resource use efficiency in the AWMD regime, especially at NN. The results indicate that adoption of an AWMD regime with an appropriate N rate can achieve a higher grian yield, WUE and NUE, and an increase in N rate can reduce the yield loss in an AWSD regime.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Field Crops Research - Volume 193, July 2016, Pages 54-69
Journal: Field Crops Research - Volume 193, July 2016, Pages 54-69
نویسندگان
Zhiqin Wang, Weiyang Zhang, Sarah S. Beebout, Hao Zhang, Lijun Liu, Jianchang Yang, Jianhua Zhang,