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| 1 | Optimizing Nitrogen Use Efficiency for No-Till Corn Production by Improving Root Growth and Capturing NO_(3)-N in Subsoil显示文摘Subsoil acidity restricts root growth and reduces crop yields in many parts of the world. More than half of the fertilizer nitrogen(N) applied in crop production is currently lost to the environment. This study aimed to investigate the effect of gypsum application on the efficiency of N fertilizer in no-till corn(Zea mays L.) production in southern Brazil. A field experiment examined the effects of surface-applied gypsum(0, 5, 10, and 15 Mg ha^(-1)) and top-dressed ammonium nitrate(NH_4NO_3)(60, 120, and 180 kg N ha^(-1)) on corn root length, N uptake, and grain yield. A greenhouse experiment was conducted using undisturbed soil columns collected from the field experiment site to evaluate NO_3-N leaching, N uptake, and root length with surface-applied gypsum(0 and 10 Mg ha^(-1)) and top-dressed NH_4NO_3(0 and 180 kg N ha^(-1)). Amelioration of subsoil acidity due to gypsum application increased corn root growth,N uptake, grain yield, and N use efficiency. Applying gypsum to the soil surface increased corn grain yield by 19%–38% and partial factor productivity of N(PFPN) by 27%–38%, depending on the N application rate. Results of the undisturbed soil column greenhouse experiment showed that improvement of N use efficiency by gypsum application was due to the higher N uptake from NO_3-N in the subsoil as a result of increased corn root length. Our results suggest that ameliorating subsoil acidity with gypsum in a no-till corn system could increase N use efficiency, improve grain yield, and reduce environmental risks due to NO_3-N leaching. | Eduardo F. CAIRES Renato ZARDO FILHO Gabriel BARTH Helio A. W. JORIS | 2016 | Pedosphere2016，26，4： | 2 |
| 2 | 显示文摘 | XuF CaiR J Zeng QC | 2011 | J Mater Chem2011，21，6： | 1 |
| 3 | Splenic abscess and multiple brain abscesses caused by Streptococcus intermedius in a young healthy man 显示文摘 | Maliyil J Caire W Nair R | 2011 | Proc (Bayl Univ Med Cent)2011，24，3： | 1 |
| 4 | Maintaining the male germline:regulation of spermatogonial stem cells显示文摘 | Caires K Broady J MeLean D | 2010 | J Endocrinol2010，205，2： | 1 |
| 5 | Design methods for irregular repeat- accumulate codes显示文摘 | ROUMY A GUEMGHAR S CAIRE G | 2004 | IEEE Trans Inform Theory2004，50，8： | 1 |
| 6 | On maximum-likelihood detection and the search for the closest lattice point 显示文摘 | Damen M Gamal H Caire G | 2003 | IEEE Transactions on Information Theory2003，49，10： | 1 |
| 7 | On the Achievable Throughput of a Multi-antenna Gaussian Broadcast Channel 显示文摘 | CAIRE G SHAMAI S | | IEEE Trarrs- actions on Information Theory0，49，07： | 1 |
| 8 | On maximum tection and the search for the closest lattice point 显示文摘 | DAMEN M O GAMAL E CAIRE G | 2003 | Information Theory2003，49，10： | 1 |
| 9 | Changes in soil enzyme activities following additions of cyanobaeterial biomass and exopolysaccharide 显示文摘 | De Caire G Z De Carlo M S Palma R M | 2000 | Soil Biology & Biochemistry2000，32，： | 1 |
| 10 | Bit-interleaved co-ded modulation 显示文摘 | CAIRE G TARICCO G BIGLIERI E | 1998 | IEEE Transactions on InformationTheory1998，44，3： | 1 |
| 11 | Bit-interleaved coded modulation 显示文摘 | Caire G Taricco G Biglieri E | 1998 | IEEE Trans on Information Theory1998，44，5： | 1 |
| 12 | Thermal behaviour of succinic acid, sodium succinate and its compounds with some bivalent transition metal ions显示文摘 | Caires F Lima L Carvalho C | 2010 | Thermochimiea Acta2010，500，1： | 1 |
| 13 | Bit in-terleaved coded modulation revisited:A mismatched deco-ding perspective显示文摘 | MARTINEZ A FABREGAS A G CAIRE G | 2009 | IEEE Transactions on InformationTheory2009，55，6： | 1 |
| 14 | On the Achievable Throughput of a Multiantenna Gaussian Broadcast Channel 显示文摘 | Caire G Shamai S | 2003 | IEEE Trans on Inform Theory2003，49，7： | 1 |
| 15 | Design methods for irregular repeat-accumulate codes 显示文摘 | ROUMY A GUEMGHAR S CAIRE G | 2004 | IEEE Transactions on Information Theory2004，50，8： | 1 |
| 16 | Unprocessed Foot-and-mouth disease virus capsid precursor displays discontinuous epitopes involved in viral neutralization显示文摘 | Seiz J C Cair J Medina M | 1994 | J Virol1994，68，7： | 1 |
| 17 | Bit-interleaved coded modulation显示文摘 | Guillen i Fabregas A Martinez A Caire G | 2008 | Foundations and Trends in Communications and Information Theory2008，5，12： | 1 |
| 18 | Bit-interleaved coded modulation显示文摘 | CAIRE G TARICCO G BIGLIERI E | 1998 | IEEE Transactions on Information Theory1998，44，3： | 1 |
| 19 | MR findings of complicated mul- tifetal gestations 显示文摘 | Hu LS Caire J Twickler DM | 2006 | Pediatr Radiol2006，36，： | 1 |
| 20 | Different effect of the atmosphere on the phase formation and pertbrmance of Li4TisOi2 prepared from ball-milllng-assisted solid-phase reaction with pristine and carbon precoated TiO2 as starting materials 显示文摘 | YUANT CAIR SttAOZ | 2011 | The Journal of Physical Chemistry C2011，115，11： | 1 |
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