Conversion to No-Till Improves Maize Nitrogen Use Efficiency in a Continuous Cover Cropping System

被引：21

作者：

Habbib, Hazzar ^{[1
]}

Verzeaux, Julien ^{[1
]}

Nivelle, Elodie ^{[1
]}

Roger, David ^{[1
]}

Lacoux, Jerome ^{[1
]}

Catterou, Manuella ^{[1
]}

Hirel, Bertrand ^{[2
]}

Dubois, Frederic ^{[1
]}

Tetu, Thierry ^{[1
]}

机构：

[1] Univ Picardie Jules Verne, Lab Agroecol Ecophysiol & Biol Integrat, Ecol & Dynam Syst Anthropises EDYSAN, FRE 3498,CNRS, 33 Rue St Leu, F-80039 Amiens, France

[2] Ctr Versailles Grignon, Inst Natl Rech Agron, Adaptat Plantes Environm, Inst Jean Pierre Bourgin,UMR 1318, RD 10, F-78026 Versailles, France

来源：

PLOS ONE | 2016年 / 11卷 / 10期

关键词：

POSTANTHESIS WATER-DEFICIT; GRAIN-YIELD; WINTER-WHEAT; DRY-MATTER; MEDITERRANEAN CONDITIONS; CARBON SEQUESTRATION; RESIDUE MANAGEMENT; GENETIC-VARIATION; FERTILIZER RATE; ORGANIC-MATTER;

D O I：

10.1371/journal.pone.0164234

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A two-year experiment was conducted in the field to measure the combined impact of tilling and N fertilization on various agronomic traits related to nitrogen (N) use efficiency and to grain yield in maize cultivated in the presence of a cover crop. Four years after conversion to no-till, a significant increase in N use efficiency N harvest index, N remobilization and N remobilization efficiency was observed both under no and high N fertilization conditions. Moreover, we observed that grain yield and grain N content were higher under no-till conditions only when N fertilizers were applied. Thus, agronomic practices based on continuous no-till appear to be a promising for increasing N use efficiency in maize.

引用

页数：16

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