Biochar and soil nitrous oxide emissions

被引：9

作者：

Brazao Vieira Alho, Carlos Francisco ^{[1
]}

Cardoso, Abmael da Silva ^{[1
]}

Rodrigues Alves, Bruno Jose ^{[2
]}

Novotny, Etelvino Henrique ^{[3
]}

机构：

[1] Univ Fed Rural Rio de Janeiro, BR-23890000 Seropedica, RJ, Brazil

[2] Embrapa Agrobiol, BR-23890000 Seropedica, RJ, Brazil

[3] Embrapa Solos, BR-22460000 Rio De Janeiro, RJ, Brazil

来源：

PESQUISA AGROPECUARIA BRASILEIRA | 2012年 / 47卷 / 05期

关键词：

lignocellulosic residues; greenhouse gases; pyrolysis; N2O EMISSIONS; CARBON;

D O I：

10.1590/S0100-204X2012000500013

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this work was to evaluate the effect of biochar application on soil nitrous oxide emissions. The experiment was carried out in pots under greenhouse conditions. Four levels of ground commercial charcoal of 2 mm (biochar) were evaluated in a sandy Albaqualf (90% of sand): 0, 3, 6, and 9 Mg ha(-1). All treatments received 100 kg ha(-1) of N as urea. A cubic effect of biochar levels was observed on the N2O emissions. Biochar doses above 5 Mg ha(-1) started to mitigate the emissions in the evaluated soil. However, lower doses promote the emissions.

引用

页码：722 / 725

页数：4

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