Corn yield response to polymer and non-coated urea placement and timings
- سال انتشار: 1392
- محل انتشار: مجله تولید گیاهان، دوره: 7، شماره: 3
- کد COI اختصاصی: JR_IJPPG-7-3_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 230
نویسندگان
Dept. of Soil, Environmental and Atmospheric Sciences, Univ. of Missouri, Columbia, MO ۶۵۲۱۱.
Div. of Plant Sciences, Univ. of Missouri, Novelty, MO ۶۳۴۶۰.
Dept. of Soil, Environmental and Atmospheric Sciences, Univ. of Missouri, Columbia, MO ۶۵۲۱۱.
چکیده
Poorly drained claypan soils can increase the importance of tillage and N management for corn (Zea mays L.) production. Field research in 2008, 2009 and 2010 (high rainfall years) near Novelty, MO (40° 1 N, 92° 11 W) sought to determine the effect of polymer-coated urea (PCU) placement [strip-tillage (ST) deep banded and no-till (NT) broadcast] and application timing (fall, early preplant and preplant) on red clover (Trifolium pratense L.) biomass and corn response compared to non-coated urea (NCU) and anhydrous ammonia (AA) in the presence and absence of nitrapyrin a nitrification inhibitor. Strip-tillage reduced clover dry weights 20% in 2008 and 2009 and early preplant ST reduced dry weights 40 to 45% in 2010 compared to NT. Corn plant population was 8,100 to 8,400 plants ha-1 greater with ST compared to NT. Preplant applications of AA plus nitrapyrin, AA, ST placement of PCU and NCU increased grain yields 1 to 1.2 Mg ha-1 compared to fall applications of these fertilizer sources. Fall and preplant ST placement of PCU increased grain yields 1.2 Mg ha-1 compared to NCU. Strip-till placement of PCU and NCU increased yields 2.1 to 3.2 Mg ha-1 over broadcast applications of these fertilizer sources. Strip-till placement of PCU synergistically increased yield over NCU and broadcast applications of PCU or NCU due to increased stands and possibly due to better plant utilization of the banded N fertilizer utility.کلیدواژه ها
Controlled-release fertilizer, Cover crop, Enhanced efficiency fertilizer, No-till, Strip-tillageاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.