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- Title
Emissão de CO<sub>2</sub> atributos físicos e carbono orgânico total em diferentes sistemas de preparo do solo.
- Authors
da Penha SIMON, Carla; da VITÓRIA, Edney Leandro; Graça LACERDA, Élcio das; AVANCINI, Yago Soares; RODRIGUES, Tatiana Fiorotti; SIMON, Cátia Aparecida
- Abstract
The objective was to quantify the CO2, chemical and physical attributes of the soil are influenced by different management of soil preparation. The experimental design was completely randomized, with the treatments: no-tillage (NT), minimum tillage (MT) and conventional tillage (CT), and as reference: native forest (NF), with six replicates each study variable. In addition to the mean test comparison, an exploratory analysis of the readings was performed in the soil preparation systems, where CO2 was graphically translated into a boxplot diagram. The variables evaluated were: CO2 obtained by means of a infrared gas analyzer; density (Bd), total pore volume (TPV), macroporosity (Ma), microporosity (Mi), resistance to soil penetration (RSP) and chemical attribute: total organic carbon (TOC). The CO2 soil flux presented a significant difference between NT and CT; where respectively the mean values found for SPD, CM, Mata and PC were 2.30; 2.25; 2.18; and 1.39 μmolCO2m-2s-1; the COT had its highest value in the Mata area (32.95 gkg-1), differing statistically from the other areas. It was observed a lower CO2 emission of the soil in the PC, because the system has low input of organic carbon.
- Publication
Nativa, 2019, Vol 7, Issue 5, p494
- ISSN
2318-7670
- Publication type
Article
- DOI
10.31413/nativa.v7i5.6273