Residues Decomposition in Crop Rotations under No-till System
Abstract The effectiveness soil cover in no-till is relating to quantity and quality of the phytomass produced by crops in rotation and, its persistence over the soil depends on residues decomposition. The objective of this study was to evaluate the phytomass production, decomposition rate and the h...
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| Format: | Article |
| Language: | English |
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Instituto de Tecnologia do Paraná (Tecpar)
2020-12-01
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| Series: | Brazilian Archives of Biology and Technology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000200214&tlng=en |
| _version_ | 1798021637926289408 |
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| author | Lutécia Beatriz dos Santos Canalli Josiane Bürkner dos Santos Andressa Andrade e Silva Angela Muchinski Emillyn Feliciano Daiane Penteado |
| author_facet | Lutécia Beatriz dos Santos Canalli Josiane Bürkner dos Santos Andressa Andrade e Silva Angela Muchinski Emillyn Feliciano Daiane Penteado |
| author_sort | Lutécia Beatriz dos Santos Canalli |
| collection | DOAJ |
| description | Abstract The effectiveness soil cover in no-till is relating to quantity and quality of the phytomass produced by crops in rotation and, its persistence over the soil depends on residues decomposition. The objective of this study was to evaluate the phytomass production, decomposition rate and the half-life of crops in rotation at the Subtropical region, Brazil. The study was carried out at the Agronomic Institute of the Paraná (IAPAR), in Ponta Grossa, Parana State, Brazil. The experimental design was randomized blocks, with six treatments and four replicates. Winter cash crops and cover crops, single and in consortium, were evaluated in the year 2014 (wheat, black oats + hairy vetch + rye, black oats + ryegrass and black oats + blue lupine), in 2015 (canola, black oats, and black oats + hairy vetch + forage turnip) and in 2016 (barley, triticale, and triticale + black oats + rye). The phytomass was evaluating by collect three subsamples of 0.25 m2 per plot. For decomposition rate and the half-life of the crop residues, litter bags (LBs) methodology was used. A mathematical model (Q=Q0exp-kt) was used to represent the crop residues decomposition and the half-life of crop residues were obtained by the equation t1/2 = (ln2)/k. Poaceae consortia, single Poaceae and canola presented higher phytomass production when compared to Poaceae-Fabaceae consortia. The half-life for Poaceae-Fabaceae corsortia was shorter than single Poaceae. |
| first_indexed | 2024-04-11T17:16:55Z |
| format | Article |
| id | doaj.art-6bad80d11ca94f479ec357e3de3cd644 |
| institution | Directory Open Access Journal |
| issn | 1678-4324 |
| language | English |
| last_indexed | 2024-04-11T17:16:55Z |
| publishDate | 2020-12-01 |
| publisher | Instituto de Tecnologia do Paraná (Tecpar) |
| record_format | Article |
| series | Brazilian Archives of Biology and Technology |
| spelling | doaj.art-6bad80d11ca94f479ec357e3de3cd6442022-12-22T04:12:37ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1678-43242020-12-0163spe10.1590/1678-4324-solo-2020190609Residues Decomposition in Crop Rotations under No-till SystemLutécia Beatriz dos Santos Canallihttps://orcid.org/0000-0003-0821-8584Josiane Bürkner dos Santoshttps://orcid.org/0000-0003-1252-869XAndressa Andrade e Silvahttps://orcid.org/0000-0003-0135-4065Angela Muchinskihttps://orcid.org/0000-0002-0336-9300Emillyn Felicianohttps://orcid.org/0000-0003-1001-9568Daiane Penteadohttps://orcid.org/0000-0001-7124-2742Abstract The effectiveness soil cover in no-till is relating to quantity and quality of the phytomass produced by crops in rotation and, its persistence over the soil depends on residues decomposition. The objective of this study was to evaluate the phytomass production, decomposition rate and the half-life of crops in rotation at the Subtropical region, Brazil. The study was carried out at the Agronomic Institute of the Paraná (IAPAR), in Ponta Grossa, Parana State, Brazil. The experimental design was randomized blocks, with six treatments and four replicates. Winter cash crops and cover crops, single and in consortium, were evaluated in the year 2014 (wheat, black oats + hairy vetch + rye, black oats + ryegrass and black oats + blue lupine), in 2015 (canola, black oats, and black oats + hairy vetch + forage turnip) and in 2016 (barley, triticale, and triticale + black oats + rye). The phytomass was evaluating by collect three subsamples of 0.25 m2 per plot. For decomposition rate and the half-life of the crop residues, litter bags (LBs) methodology was used. A mathematical model (Q=Q0exp-kt) was used to represent the crop residues decomposition and the half-life of crop residues were obtained by the equation t1/2 = (ln2)/k. Poaceae consortia, single Poaceae and canola presented higher phytomass production when compared to Poaceae-Fabaceae consortia. The half-life for Poaceae-Fabaceae corsortia was shorter than single Poaceae.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000200214&tlng=enCover cropsdecomposition ratephytomass productionresidues half-life |
| spellingShingle | Lutécia Beatriz dos Santos Canalli Josiane Bürkner dos Santos Andressa Andrade e Silva Angela Muchinski Emillyn Feliciano Daiane Penteado Residues Decomposition in Crop Rotations under No-till System Brazilian Archives of Biology and Technology Cover crops decomposition rate phytomass production residues half-life |
| title | Residues Decomposition in Crop Rotations under No-till System |
| title_full | Residues Decomposition in Crop Rotations under No-till System |
| title_fullStr | Residues Decomposition in Crop Rotations under No-till System |
| title_full_unstemmed | Residues Decomposition in Crop Rotations under No-till System |
| title_short | Residues Decomposition in Crop Rotations under No-till System |
| title_sort | residues decomposition in crop rotations under no till system |
| topic | Cover crops decomposition rate phytomass production residues half-life |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000200214&tlng=en |
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