کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4509017 1624473 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Agronomic performance, carbon storage and nitrogen utilisation of long-term organic and conventional stockless arable systems in Mediterranean area
ترجمه فارسی عنوان
عملکرد زراعی، ذخایر کربن و استفاده نیتروژن از سیستم های زراعی بدون آکواریوم و بلند مدت در مناطق مدیترانه ای
کلمات کلیدی
کشاورزی ارگانیک، آزمایش طولانی مدت مزرعه، تعادل نیتروژن و کارایی، جداسازی کربن خاک
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی


• We assessed sixteen years of agronomic performance and environmental sustainability.
• Organic agroecosystems produced comparable crop grain yields respect to the conventional.
• Conventional agroecosystem showed a larger N surplus and a lower crop N use efficiency.
• Organic agroecosystems were more effective in terms of soil C and soil N storage.
• Organic farming in Mediterranean increase environmental sustainability.

The Montepaldi Long Term Experiment (MOLTE) trial in central Italy has been comparing three agroecosystems with different management: two organic (Old Organic since 1992 and Young Organic since 2001) and one conventional. After sixteen years of comparison, the agronomic performance and environmental sustainability of the three agro-ecosystems were assessed. Crops grain yield, total C inputs and N budget at field level were evaluated. N use efficiency (NUE) at micro-agroecosystem level was determined. Soil samples were collected from the three agroecosystems in order to quantify soil C and N pools.Results showed comparable grain yields in the three agro-ecosystems. The conventional system showed a larger N surplus and a lower crop N use efficiency in comparison with the organic ones. Moreover, the organic systems presented a lower potential risk of N losses with respect to the conventional one. The Young Organic agro-ecosystem was the most effective in terms of long term soil C (13% higher than conventional) and the oldest organic agro-ecosystem was the most effective in terms of soil N storage (9% higher than conventional).The results obtained demonstrated that the application of the organic farming method could increase the environmental sustainability in stockless arable systems under Mediterranean type of climate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Agronomy - Volume 52, Part B, January 2014, Pages 138–145
نویسندگان
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